Merge branch 'hotfix/fix_compil_translation'

Move sort list preference

.idea/misc.xml

@@ -24,7 +24,7 @@
       </value>
     </option>
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_7" default="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" default="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
   <component name="ProjectType">

CHANGELOG

@@ -1,3 +1,33 @@
+KeepassDX (2.5.0.0beta5)
+ * Autofill (Android O)
+ * Deletion for group
+ * New sorts with (Asc/Dsc, Groups before or after)
+ * Better permission management with dialog at runtime
+ * Setting to change font of field (monospace for a better visibility)
+ * Open kdbx and kdb files from file browser
+ * Change sort of fields
+ * Hide empty fields
+ * Add copy button for Username / Password and extra field
+ * Add 5, 10, 20 seconds and 15 minutes of clipboard timeout
+ * Hide "show password" icon when password not present
+ * New animations for add button
+ * New list to add and delete node with animation
+ * Change view for better cohesion
+ * Upgrade translations
+ * Fix crash for API < Kitkat
+ * Fix fingerprint bugs
+ * Fix many small bugs
+ * Add recycle bin setting (not yet accessible)
+
+KeepassDX (2.5.0.0beta4)
+ * Show only file name
+ * Setting for full path
+ * Add information for each database file
+ * Setting to delete fingerprints
+ * Solve bugs when change fingerprint
+ * Delete view assignment for fingerprint opening
+ * Merge KeePassDroid 2.2.1
+
 KeepassDX (2.5.0.0beta3)
  * New database workflow with new screens and folder selection
  * Settings for default password generation
@@ -21,6 +51,10 @@ KeepassDX (2.5.0.0beta1)
  * Update French translation
  * Change donation (see KeepassDroid to contribute on both projects)
 
+KeePassDroid (2.2.1)
+ * Fix kdbx4 date corruption
+ * Updated German translations
+
 KeePassDroid (2.2.0.9)
  * Update build tools version to workaround CM/Lineage bug (closes: #249)
  * Update Russian translations

CONTRIBUTORS

@@ -21,7 +21,7 @@ Diego Pierotto - Italian
 Laurent, Norman Obry, Nam, Bruno Parmentier, Credomo - French
 Maciej Bieniek, cod3r - Polish
 Максим Сёмочкин, i.nedoboy, filimonic, bboa - Russian
-MaWi, rvs2008, meviox, MaDill - German
+MaWi, rvs2008, meviox, MaDill, EdlerProgrammierer, Jan Thomas - German
 yslandro - Norwegian Nynorsk
 王科峰 - Chinese
 Typhoon - Slovak

ReadMe.md

@@ -1,18 +1,19 @@
 # Android Keepass DX
 
-<img src="https://raw.githubusercontent.com/Kunzisoft/KeePassDX/master/art/logo.png"> Keepass DX is a material design Keepass Client for manage keys and passwords in crypt database for your android device.
+<img src="https://raw.githubusercontent.com/Kunzisoft/KeePassDX/master/fastlane/metadata/android/en-US/images/icon.png"> Keepass DX is a material design Keepass Client for manage keys and passwords in crypt database for your android device.
 
 ### Features
 
-- Simplified creation of the database file
-- Create entries and groups
-- Open database, copy username / password, open URI / URL
-- Fingerprint for fast unlocking
-- Material design with themes
-- Device integration and AutoFill (In progress)
+* Create database files / entries and groups
+* Support for .kdb and .kdbx files (version 1 to 4)
+* Open database, copy username / password, open URI / URL
+* Fingerprint for fast unlocking
+* Material design with themes
+* AutoFill and Integration (Development in progress)
+* Precise management of settings
 
-<img src="https://raw.githubusercontent.com/Kunzisoft/KeePassDX/master/art/screen1.jpg" width="220">
-<img src="https://raw.githubusercontent.com/Kunzisoft/KeePassDX/master/art/screen2.jpg" width="220">
+<img src="https://raw.githubusercontent.com/Kunzisoft/KeePassDX/master/fastlane/metadata/android/en-US/images/phoneScreenshots/screen1.jpg" width="220">
+<img src="https://raw.githubusercontent.com/Kunzisoft/KeePassDX/master/fastlane/metadata/android/en-US/images/phoneScreenshots/screen2.jpg" width="220">
 
 ## What is KeePass?
 
@@ -32,8 +33,8 @@ Even if the application is free, to maintain the application, you can make donat
 
 [![Donation Liberapay](https://liberapay.com/assets/widgets/donate.svg)](https://liberapay.com/Kunzisoft/donate "Kunzisoft Liberapay Donation")
 
-<img src="https://raw.githubusercontent.com/Kunzisoft/KeePassDX/master/art/screen4.jpg" width="220">
-<img src="https://raw.githubusercontent.com/Kunzisoft/KeePassDX/master/art/screen5.jpg" width="220">
+<img src="https://raw.githubusercontent.com/Kunzisoft/KeePassDX/master/fastlane/metadata/android/en-US/images/phoneScreenshots/screen4.jpg" width="220">
+<img src="https://raw.githubusercontent.com/Kunzisoft/KeePassDX/master/fastlane/metadata/android/en-US/images/phoneScreenshots/screen5.jpg" width="220">
 
 ## Download
 
@@ -45,16 +46,6 @@ Even if the application is free, to maintain the application, you can make donat
       alt="Get it on Google Play"
 	height="80">](https://play.google.com/store/apps/details?id=com.kunzisoft.keepass.free)
 
-### JNI
-
-Native library build instructions:
-1. Make sure you have the latest MIPS Android NDK installed: 
-   https://developer.android.com/tools/sdk/ndk/index.html
-2. From KeePassDroid/app/src/main/jni, call prep_build.sh to download and unpack the crypto sources.
-3. The standard gradle files build everything now.
-
-This project is a fork of [KeepassDroid](https://github.com/bpellin/keepassdroid) by bpellin.
-
 ## License
 
  Copyright (c) 2017 Jeremy Jamet / Kunzisoft.
@@ -73,3 +64,5 @@ This project is a fork of [KeepassDroid](https://github.com/bpellin/keepassdroid
 
   You should have received a copy of the GNU General Public License
   along with KeePass DX.  If not, see <http://www.gnu.org/licenses/>.
+  
+  This project is a fork of [KeepassDroid](https://github.com/bpellin/keepassdroid) by bpellin.

app/build.gradle

@@ -1,15 +1,16 @@
 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion = 25
-    buildToolsVersion = "27.0.1"
+    compileSdkVersion = 27
+    buildToolsVersion = "27.0.3"
 
     defaultConfig {
         applicationId "com.kunzisoft.keepass"
         minSdkVersion 14
-        targetSdkVersion 25
-        versionCode = 3
-        versionName = "2.5.0.0beta3"
+        targetSdkVersion 27
+        versionCode = 5
+        versionName = "2.5.0.0beta5"
+        multiDexEnabled true
 
         testApplicationId = "com.keepassdroid.tests"
         testInstrumentationRunner = "android.test.InstrumentationTestRunner"
@@ -58,21 +59,34 @@ android {
             buildConfigField "boolean", "GOOGLE_PLAY_VERSION", "true"
         }
     }
+    compileOptions {
+        targetCompatibility 1.8
+        sourceCompatibility 1.8
+    }
 }
 
-def supportVersion = "25.4.0"
+def supportVersion = "27.1.0"
 def spongycastleVersion = "1.58.0.0"
+def permissionDispatcherVersion = "3.1.0"
 
 dependencies {
-    androidTestCompile "junit:junit:4.12"
-    compile "com.android.support:appcompat-v7:$supportVersion"
-    compile "com.android.support:design:$supportVersion"
-    compile "com.android.support:preference-v7:$supportVersion"
-    compile "com.android.support:preference-v14:$supportVersion"
-    compile "com.android.support:cardview-v7:$supportVersion"
-    compile "com.madgag.spongycastle:core:$spongycastleVersion"
-    compile "com.madgag.spongycastle:prov:$spongycastleVersion"
-    compile "joda-time:joda-time:2.9.9"
-    compile "org.sufficientlysecure:html-textview:3.5"
-    compile "com.nononsenseapps:filepicker:4.1.0"
+    implementation "com.android.support:appcompat-v7:$supportVersion"
+    implementation "com.android.support:design:$supportVersion"
+    implementation "com.android.support:preference-v7:$supportVersion"
+    implementation "com.android.support:preference-v14:$supportVersion"
+    implementation "com.android.support:cardview-v7:$supportVersion"
+    implementation "com.madgag.spongycastle:core:$spongycastleVersion"
+    implementation "com.madgag.spongycastle:prov:$spongycastleVersion"
+    // Time
+    implementation "joda-time:joda-time:2.9.9"
+    implementation "org.sufficientlysecure:html-textview:3.5"
+    implementation "com.nononsenseapps:filepicker:4.1.0"
+    // Permissions
+    implementation ("com.github.hotchemi:permissionsdispatcher:$permissionDispatcherVersion") {
+        // if you don't use android.app.Fragment you can exclude support for them
+        exclude module: "support-v13"
+    }
+    annotationProcessor "com.github.hotchemi:permissionsdispatcher-processor:$permissionDispatcherVersion"
+    implementation group: 'com.google.code.gson', name: 'gson', version: '2.8.1'
+    implementation group: 'com.google.guava', name: 'guava', version: '23.0-android'
 }

app/src/androidTest/java/com/keepassdroid/tests/PwEntryTestV4.java

@@ -50,7 +50,7 @@ public class PwEntryTestV4 extends TestCase {
 		entry.icon = new PwIconStandard(5);
 		entry.overrideURL = "override";
 		entry.parent = new PwGroupV4();
-		entry.strings.put("key2", new ProtectedString(false, "value2"));
+		entry.addField("key2", new ProtectedString(false, "value2"));
 		entry.url = "http://localhost";
 		entry.uuid = UUID.randomUUID();
 

app/src/androidTest/java/com/keepassdroid/tests/database/DeleteEntry.java

@@ -24,7 +24,7 @@ import java.util.List;
 import android.content.Context;
 import android.test.AndroidTestCase;
 
-import com.keepassdroid.Database;
+import com.keepassdroid.database.Database;
 import com.keepassdroid.database.PwDatabase;
 import com.keepassdroid.database.PwDatabaseV3;
 import com.keepassdroid.database.PwEntry;
@@ -74,8 +74,8 @@ public class DeleteEntry extends AndroidTestCase {
 		PwGroup results1 = dbHelp.search(db, ENTRY1_NAME);
 		PwGroup results2 = dbHelp.search(db, ENTRY2_NAME);
 		
-		assertEquals("Entry1 was not removed from the search results", 0, results1.childEntries.size());
-		assertEquals("Entry2 was not removed from the search results", 0, results2.childEntries.size());
+		assertEquals("Entry1 was not removed from the search results", 0, results1.numbersOfChildEntries());
+		assertEquals("Entry2 was not removed from the search results", 0, results2.numbersOfChildEntries());
 		
 		// Verify the group was deleted
 		group1 = getGroup(pm, GROUP1_NAME);

app/src/androidTest/java/com/keepassdroid/tests/database/TestData.java

@@ -25,12 +25,10 @@ import android.content.Context;
 import android.content.res.AssetManager;
 import android.net.Uri;
 
-import com.keepassdroid.Database;
+import com.keepassdroid.database.Database;
 import com.keepassdroid.database.PwDatabaseV3Debug;
 import com.keepassdroid.database.load.Importer;
 import com.keepassdroid.tests.TestUtil;
-import com.keepassdroid.utils.EmptyUtils;
-import com.keepassdroid.utils.UriUtil;
 
 public class TestData {
 	private static final String TEST1_KEYFILE = "";

app/src/androidTest/java/com/keepassdroid/tests/search/SearchTest.java

@@ -26,7 +26,7 @@ import android.preference.PreferenceManager;
 import android.test.AndroidTestCase;
 
 import com.kunzisoft.keepass.R;
-import com.keepassdroid.Database;
+import com.keepassdroid.database.Database;
 import com.keepassdroid.database.PwGroup;
 import com.keepassdroid.tests.database.TestData;
 
@@ -43,7 +43,7 @@ public class SearchTest extends AndroidTestCase {
 	
 	public void testSearch() {
 		PwGroup results = mDb.Search("Amazon");
-		assertTrue("Search result not found.", results.childEntries.size() > 0);
+		assertTrue("Search result not found.", results.numbersOfChildEntries() > 0);
 		
 	}
 	
@@ -51,14 +51,14 @@ public class SearchTest extends AndroidTestCase {
 		updateOmitSetting(false);
 		PwGroup results = mDb.Search("BackupOnly");
 		
-		assertTrue("Search result not found.", results.childEntries.size() > 0);
+		assertTrue("Search result not found.", results.numbersOfChildEntries() > 0);
 	}
 	
 	public void testBackupExcluded() {
 		updateOmitSetting(true);
 		PwGroup results = mDb.Search("BackupOnly");
 		
-		assertFalse("Search result found, but should not have been.", results.childEntries.size() > 0);
+		assertFalse("Search result found, but should not have been.", results.numbersOfChildEntries() > 0);
 	}
 	
 	private void updateOmitSetting(boolean setting) {
@@ -66,7 +66,7 @@ public class SearchTest extends AndroidTestCase {
 		SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(ctx);
 		SharedPreferences.Editor editor = prefs.edit();
 		
-		editor.putBoolean(ctx.getString(R.string.omitbackup_key), setting);
+		editor.putBoolean(ctx.getString(R.string.settings_omitbackup_key), setting);
 		editor.commit();
 		
 	}

app/src/main/AndroidManifest.xml

@@ -23,7 +23,8 @@
         android:theme="@style/KeepassDXStyle.Light"
         tools:replace="android:theme">
         <!-- TODO backup API Key -->
-        <meta-data android:name="com.google.android.backup.api_key"
+        <meta-data
+            android:name="com.google.android.backup.api_key"
             android:value="" />
 
         <!-- Folder picker -->
@@ -37,7 +38,7 @@
                 android:resource="@xml/nnf_provider_paths" />
         </provider>
         <activity
-            android:name="com.keepassdroid.FilePickerStylishActivity"
+            android:name="com.keepassdroid.fileselect.FilePickerStylishActivity"
             android:label="@string/app_name">
             <intent-filter>
                 <action android:name="android.intent.action.GET_CONTENT" />
@@ -52,12 +53,19 @@
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
-        <activity android:name="com.keepassdroid.fileselect.FileSelectActivity"
+        <activity
+            android:name="com.keepassdroid.fileselect.FileSelectActivity"
+            android:launchMode="singleInstance"
             android:configChanges="orientation|keyboardHidden"
             android:windowSoftInputMode="stateHidden" />
-        <activity android:name="com.keepassdroid.AboutActivity"
+        <activity
+            android:name="com.keepassdroid.activities.AboutActivity"
+            android:launchMode="singleInstance"
             android:label="@string/menu_about" />
-        <activity android:name="com.keepassdroid.PasswordActivity" android:configChanges="orientation|keyboardHidden">
+        <activity
+            android:name="com.keepassdroid.password.PasswordActivity"
+            android:configChanges="orientation|keyboardHidden"
+            android:windowSoftInputMode="adjustResize">
             <intent-filter>
                 <action android:name="android.intent.action.VIEW" />
                 <category android:name="android.intent.category.DEFAULT" />
@@ -87,42 +95,58 @@
                 <data android:pathPattern=".*\\..*\\..*\\..*\\..*\\..*\\..*\\..*\\..*\\.kdbx" />
                 <data android:pathPattern=".*\\..*\\..*\\..*\\..*\\..*\\..*\\..*\\..*\\..*\\.kdbx" />
             </intent-filter>
+            <intent-filter tools:ignore="AppLinkUrlError">
+                <action android:name="android.intent.action.VIEW"/>
+                <category android:name="android.intent.category.DEFAULT"/>
+                <category android:name="android.intent.category.BROWSABLE"/>
+                <data android:mimeType="application/octet-stream"/>
+            </intent-filter>
         </activity>
-        <activity android:name="com.keepassdroid.GroupActivityV3" android:configChanges="orientation|keyboardHidden">
-            <meta-data android:name="android.app.default_searchable"
-                       android:value="com.keepassdroid.search.SearchResults" />
-        </activity>
-        <activity android:name="com.keepassdroid.GroupActivityV4" android:configChanges="orientation|keyboardHidden">
-            <meta-data android:name="android.app.default_searchable"
+        <activity
+            android:name="com.keepassdroid.activities.GroupActivity"
+            android:configChanges="orientation|keyboardHidden"
+            android:windowSoftInputMode="adjustPan">
+            <meta-data
+                android:name="android.app.default_searchable"
                 android:value="com.keepassdroid.search.SearchResults"
                 android:exported="false"/>
         </activity>
         <activity
-            android:name="com.keepassdroid.EntryActivity"
+            android:name="com.keepassdroid.activities.EntryActivity"
             android:configChanges="orientation|keyboardHidden"
             android:windowSoftInputMode="stateHidden" />
         <activity
-            android:name="com.keepassdroid.EntryActivityV4"
+            android:name="com.keepassdroid.activities.EntryEditActivity"
             android:configChanges="orientation|keyboardHidden"
             android:windowSoftInputMode="stateHidden" />
         <activity
-            android:name="com.keepassdroid.EntryEditActivityV3"
-            android:configChanges="orientation|keyboardHidden"
-            android:windowSoftInputMode="stateHidden" />
-        <activity
-            android:name="com.keepassdroid.EntryEditActivityV4"
-            android:configChanges="orientation|keyboardHidden"
-            android:windowSoftInputMode="stateHidden" />
-        <activity android:name="com.keepassdroid.search.SearchResultsActivity" android:launchMode="standard">
+            android:name="com.keepassdroid.search.SearchResultsActivity"
+            android:launchMode="standard">
             <intent-filter>
                 <action android:name="android.intent.action.SEARCH" />
                 <category android:name="android.intent.category.DEFAULT" />
              </intent-filter>
-            <meta-data android:name="android.app.searchable" android:resource="@xml/searchable" />
+            <meta-data
+                android:name="android.app.searchable"
+                android:resource="@xml/searchable" />
         </activity>
         <activity android:name="com.keepassdroid.settings.SettingsActivity" />
+        <activity android:name="com.keepassdroid.autofill.AutoFillAuthActivity"
+            android:configChanges="orientation|keyboardHidden" />
 
         <service android:name="com.keepassdroid.services.TimeoutService" />
+        <service
+            android:name="com.keepassdroid.autofill.KeeAutofillService"
+            android:label="@string/autofill_service_name"
+            android:permission="android.permission.BIND_AUTOFILL_SERVICE">
+            <meta-data
+                android:name="android.autofill"
+                android:resource="@xml/dataset_service" />
+
+            <intent-filter>
+                <action android:name="android.service.autofill.AutofillService" />
+            </intent-filter>
+        </service>
         <meta-data android:name="com.sec.android.support.multiwindow" android:value="true" />
     </application>
 </manifest> 

app/src/main/java/com/keepassdroid/EntryActivityV4.java

@@ -1,75 +0,0 @@
-/*
- * Copyright 2017 Brian Pellin, Jeremy Jamet / Kunzisoft.
- *     
- * This file is part of KeePass DX.
- *
- *  KeePass DX is free software: you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation, either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  KeePass DX is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with KeePass DX.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-package com.keepassdroid;
-
-import java.util.Map;
-
-import android.view.View;
-import android.view.ViewGroup;
-
-import com.kunzisoft.keepass.R;
-import com.keepassdroid.app.App;
-import com.keepassdroid.database.PwDatabase;
-import com.keepassdroid.database.PwEntryV4;
-import com.keepassdroid.database.security.ProtectedString;
-import com.keepassdroid.utils.SprEngine;
-import com.keepassdroid.utils.SprEngineV4;
-import com.keepassdroid.view.EntrySection;
-
-
-public class EntryActivityV4 extends EntryActivity {
-
-	@Override
-	protected void setEntryView() {
-		setContentView(R.layout.entry_view);
-	}
-
-	@Override
-	protected void fillData(boolean trimList) {
-		super.fillData(trimList);
-		
-		ViewGroup group = (ViewGroup) findViewById(R.id.extra_strings);
-		
-		if (trimList) {
-			group.removeAllViews();
-		}
-		
-		PwEntryV4 entry = (PwEntryV4) mEntry;
-		
-		PwDatabase pm = App.getDB().pm;
-		SprEngine spr = SprEngineV4.getInstance(pm);
-		
-		// Display custom strings
-		if (entry.strings.size() > 0) {
-			for (Map.Entry<String, ProtectedString> pair : entry.strings.entrySet()) {
-				String key = pair.getKey();
-				
-				if (!PwEntryV4.IsStandardString(key)) {
-					String text = pair.getValue().toString();
-					View view = new EntrySection(this, null, key, spr.compile(text, entry, pm));
-					group.addView(view);
-				}
-			}
-		}
-			
-	}
-
-
-}

app/src/main/java/com/keepassdroid/EntryEditActivity.java

@@ -1,328 +0,0 @@
-/*
- * Copyright 2017 Brian Pellin, Jeremy Jamet / Kunzisoft.
- *     
- * This file is part of KeePass DX.
- *
- *  KeePass DX is free software: you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation, either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  KeePass DX is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with KeePass DX.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-package com.keepassdroid;
-
-import android.app.Activity;
-import android.content.Intent;
-import android.os.Bundle;
-import android.os.Handler;
-import android.support.v7.widget.Toolbar;
-import android.view.Menu;
-import android.view.MenuInflater;
-import android.view.MenuItem;
-import android.view.View;
-import android.view.View.OnClickListener;
-import android.widget.EditText;
-import android.widget.ImageButton;
-import android.widget.TextView;
-import android.widget.Toast;
-
-import com.kunzisoft.keepass.KeePass;
-import com.kunzisoft.keepass.R;
-import com.keepassdroid.app.App;
-import com.keepassdroid.database.PwDatabase;
-import com.keepassdroid.database.PwEntry;
-import com.keepassdroid.database.PwEntryV3;
-import com.keepassdroid.database.PwEntryV4;
-import com.keepassdroid.database.PwGroup;
-import com.keepassdroid.database.PwGroupId;
-import com.keepassdroid.database.PwGroupV3;
-import com.keepassdroid.database.PwGroupV4;
-import com.keepassdroid.database.PwIconStandard;
-import com.keepassdroid.database.edit.AddEntry;
-import com.keepassdroid.database.edit.OnFinish;
-import com.keepassdroid.database.edit.RunnableOnFinish;
-import com.keepassdroid.database.edit.UpdateEntry;
-import com.keepassdroid.icons.Icons;
-import com.keepassdroid.utils.MenuUtil;
-import com.keepassdroid.utils.Types;
-import com.keepassdroid.utils.Util;
-
-import java.util.Calendar;
-import java.util.Date;
-import java.util.UUID;
-
-public abstract class EntryEditActivity extends LockCloseHideActivity
-		implements IconPickerFragment.IconPickerListener,
-        GeneratePasswordFragment.GeneratePasswordListener {
-	public static final String KEY_ENTRY = "entry";
-	public static final String KEY_PARENT = "parent";
-
-	protected PwEntry mEntry;
-	protected boolean mIsNew;
-	protected int mSelectedIconID = -1;
-	
-	public static void Launch(Activity act, PwEntry pw) {
-		Intent i;
-		if (pw instanceof PwEntryV3) {
-			i = new Intent(act, EntryEditActivityV3.class);
-		}
-		else if (pw instanceof PwEntryV4) {
-			i = new Intent(act, EntryEditActivityV4.class);
-		}
-		else {
-			throw new RuntimeException("Not yet implemented.");
-		}
-		
-		i.putExtra(KEY_ENTRY, Types.UUIDtoBytes(pw.getUUID()));
-		
-		act.startActivityForResult(i, 0);
-	}
-	
-	public static void Launch(Activity act, PwGroup pw) {
-		Intent i;
-		if (pw instanceof PwGroupV3) {
-			i = new Intent(act, EntryEditActivityV3.class);
-			EntryEditActivityV3.putParentId(i, KEY_PARENT, (PwGroupV3)pw);
-		}
-		else if (pw instanceof PwGroupV4) {
-			i = new Intent(act, EntryEditActivityV4.class);
-			EntryEditActivityV4.putParentId(i, KEY_PARENT, (PwGroupV4)pw);
-		}
-		else {
-			throw new RuntimeException("Not yet implemented.");
-		}
-
-		act.startActivityForResult(i, 0);
-	}
-	
-	protected abstract PwGroupId getParentGroupId(Intent i, String key);
-	
-	@Override
-	protected void onCreate(Bundle savedInstanceState) {
-		super.onCreate(savedInstanceState);
-		setContentView(R.layout.entry_edit);
-		setResult(KeePass.EXIT_NORMAL);
-
-        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
-        toolbar.setTitle(getString(R.string.app_name));
-        setSupportActionBar(toolbar);
-        assert getSupportActionBar() != null;
-        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
-        getSupportActionBar().setDisplayShowHomeEnabled(true);
-		
-		// Likely the app has been killed exit the activity
-		Database db = App.getDB();
-		if ( ! db.Loaded() ) {
-			finish();
-			return;
-		}
-
-		Intent i = getIntent();
-		byte[] uuidBytes = i.getByteArrayExtra(KEY_ENTRY);
-
-		PwDatabase pm = db.pm;
-		if ( uuidBytes == null ) {
-
-			PwGroupId parentId = getParentGroupId(i, KEY_PARENT);
-			PwGroup parent = pm.groups.get(parentId);
-			mEntry = PwEntry.getInstance(parent);
-			mIsNew = true;
-			
-		} else {
-			UUID uuid = Types.bytestoUUID(uuidBytes);
-			mEntry = pm.entries.get(uuid);
-			mIsNew = false;
-			fillData();
-		} 
-	
-		View scrollView = findViewById(R.id.entry_scroll);
-		scrollView.setScrollBarStyle(View.SCROLLBARS_INSIDE_INSET);
-
-		View iconButton = findViewById(R.id.icon_button);
-		iconButton.setOnClickListener(new View.OnClickListener() {
-			public void onClick(View v) {
-				IconPickerFragment.Launch(EntryEditActivity.this);
-			}
-		});
-
-		// Generate password button
-		View generatePassword = findViewById(R.id.generate_button);
-		generatePassword.setOnClickListener(new OnClickListener() {
-			
-			public void onClick(View v) {
-				GeneratePasswordFragment generatePasswordFragment = new GeneratePasswordFragment();
-				generatePasswordFragment.show(getSupportFragmentManager(), "PasswordGeneratorFragment");
-			}
-		});
-		
-		// Save button
-		View save = findViewById(R.id.entry_save);
-		save.setOnClickListener(new View.OnClickListener() {
-
-			public void onClick(View v) {
-				EntryEditActivity act = EntryEditActivity.this;
-				
-				if (!validateBeforeSaving()) {
-					return;
-				}
-				
-				PwEntry newEntry = populateNewEntry();
-
-				if ( newEntry.getTitle().equals(mEntry.getTitle()) ) {
-					setResult(KeePass.EXIT_REFRESH);
-				} else {
-					setResult(KeePass.EXIT_REFRESH_TITLE);
-				}
-				
-				RunnableOnFinish task;
-				OnFinish onFinish = act.new AfterSave(new Handler());
-				
-				if ( mIsNew ) {
-					task = AddEntry.getInstance(EntryEditActivity.this, App.getDB(), newEntry, onFinish);
-				} else {
-					task = new UpdateEntry(EntryEditActivity.this, App.getDB(), mEntry, newEntry, onFinish);
-				}
-				ProgressTask pt = new ProgressTask(act, task, R.string.saving_database);
-				pt.run();
-			}
-			
-		});
-	}
-	
-	protected boolean validateBeforeSaving() {
-		// Require title
-		String title = Util.getEditText(this, R.id.entry_title);
-		if ( title.length() == 0 ) {
-			Toast.makeText(this, R.string.error_title_required, Toast.LENGTH_LONG).show();
-			return false;
-		}
-		
-		// Validate password
-		String pass = Util.getEditText(this, R.id.entry_password);
-		String conf = Util.getEditText(this, R.id.entry_confpassword);
-		if ( ! pass.equals(conf) ) {
-			Toast.makeText(this, R.string.error_pass_match, Toast.LENGTH_LONG).show();
-			return false;
-		}
-		
-		return true;
-	}
-	
-	protected PwEntry populateNewEntry() {
-		return populateNewEntry(null);
-	}
-	
-	protected PwEntry populateNewEntry(PwEntry entry) {
-		PwEntry newEntry;
-		if (entry == null) {
-			newEntry = mEntry.clone(true);
-		} 
-		else {
-			newEntry = entry;
-		}
-		
-		Date now = Calendar.getInstance().getTime(); 
-		newEntry.setLastAccessTime(now);
-		newEntry.setLastModificationTime(now);
-		
-		PwDatabase db = App.getDB().pm;
-		newEntry.setTitle(Util.getEditText(this, R.id.entry_title), db);
-		if(mSelectedIconID != -1)
-		    newEntry.setIcon(new PwIconStandard(mSelectedIconID));
-		newEntry.setUrl(Util.getEditText(this, R.id.entry_url), db);
-		newEntry.setUsername(Util.getEditText(this, R.id.entry_user_name), db);
-		newEntry.setNotes(Util.getEditText(this, R.id.entry_comment), db);
-		newEntry.setPassword(Util.getEditText(this, R.id.entry_password), db);
-		
-		return newEntry;
-	}
-
-	@Override
-	public boolean onCreateOptionsMenu(Menu menu) {
-		super.onCreateOptionsMenu(menu);
-		
-		MenuInflater inflater = getMenuInflater();
-		MenuUtil.donationMenuInflater(inflater, menu);
-		
-		return true;
-	}
-	
-	public boolean onOptionsItemSelected(MenuItem item) {
-		switch ( item.getItemId() ) {
-			case R.id.menu_donate:
-				return MenuUtil.onDonationItemSelected(this);
-
-			case android.R.id.home:
-				finish();
-		}
-		
-		return super.onOptionsItemSelected(item);
-	}
-
-	protected void fillData() {
-		ImageButton currIconButton = (ImageButton) findViewById(R.id.icon_button);
-		App.getDB().drawFactory.assignDrawableTo(currIconButton, getResources(), mEntry.getIcon());
-
-		populateText(R.id.entry_title, mEntry.getTitle());
-		populateText(R.id.entry_user_name, mEntry.getUsername());
-		populateText(R.id.entry_url, mEntry.getUrl());
-		
-		String password = mEntry.getPassword();
-		populateText(R.id.entry_password, password);
-		populateText(R.id.entry_confpassword, password);
-
-		populateText(R.id.entry_comment, mEntry.getNotes());
-	}
-
-	private void populateText(int viewId, String text) {
-		TextView tv = (TextView) findViewById(viewId);
-		tv.setText(text);
-	}
-
-    @Override
-    public void iconPicked(Bundle bundle) {
-        mSelectedIconID = bundle.getInt(IconPickerFragment.KEY_ICON_ID);
-        ImageButton currIconButton = (ImageButton) findViewById(R.id.icon_button);
-        currIconButton.setImageResource(Icons.iconToResId(mSelectedIconID));
-    }
-
-    @Override
-    public void acceptPassword(Bundle bundle) {
-        String generatedPassword = bundle.getString(GeneratePasswordFragment.KEY_PASSWORD_ID);
-        EditText password = (EditText) findViewById(R.id.entry_password);
-        EditText confPassword = (EditText) findViewById(R.id.entry_confpassword);
-
-        password.setText(generatedPassword);
-        confPassword.setText(generatedPassword);
-    }
-
-    @Override
-    public void cancelPassword(Bundle bundle) {
-        // Do nothing here
-    }
-
-    private final class AfterSave extends OnFinish {
-
-		AfterSave(Handler handler) {
-			super(handler);
-		}
-
-		@Override
-		public void run() {
-			if ( mSuccess ) {
-				finish();
-			} else {
-				displayMessage(EntryEditActivity.this);
-			}
-		}
-	}
-
-}

app/src/main/java/com/keepassdroid/EntryEditActivityV3.java

@@ -1,62 +0,0 @@
-/*
- * Copyright 2017 Brian Pellin, Jeremy Jamet / Kunzisoft.
- *     
- * This file is part of KeePass DX.
- *
- *  KeePass DX is free software: you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation, either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  KeePass DX is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with KeePass DX.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-package com.keepassdroid;
-
-import android.content.Intent;
-
-import com.keepassdroid.app.App;
-import com.keepassdroid.database.PwEntry;
-import com.keepassdroid.database.PwGroupId;
-import com.keepassdroid.database.PwGroupIdV3;
-import com.keepassdroid.database.PwGroupV3;
-
-public class EntryEditActivityV3 extends EntryEditActivity {
-
-	@Override
-	protected PwEntry populateNewEntry(PwEntry entry) {
-		PwEntry newEntry = super.populateNewEntry(entry);
-		
-		if (mSelectedIconID == -1) {
-			if (mIsNew) {
-				newEntry.icon = App.getDB().pm.iconFactory.getIcon(0);
-			}
-			else {
-				// Keep previous icon, if no new one was selected
-				newEntry.icon = mEntry.icon;
-			}
-		}
-		else {
-			newEntry.icon = App.getDB().pm.iconFactory.getIcon(mSelectedIconID);
-		}
-		
-		return newEntry;
-	}
-
-	protected static void putParentId(Intent i, String parentKey, PwGroupV3 parent) {
-		i.putExtra(parentKey, parent.groupId);
-	}
-
-	@Override
-	protected PwGroupId getParentGroupId(Intent i, String key) {
-		int groupId = i.getIntExtra(key, -1);
-		
-		return new PwGroupIdV3(groupId);
-	}
-}

app/src/main/java/com/keepassdroid/EntryEditActivityV4.java

@@ -1,206 +0,0 @@
-/*
- * Copyright 2017 Brian Pellin, Jeremy Jamet / Kunzisoft.
- *     
- * This file is part of KeePass DX.
- *
- *  KeePass DX is free software: you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation, either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  KeePass DX is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with KeePass DX.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-package com.keepassdroid;
-
-import android.content.Context;
-import android.content.Intent;
-import android.os.Bundle;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.CheckBox;
-import android.widget.LinearLayout;
-import android.widget.ScrollView;
-import android.widget.TextView;
-import android.widget.Toast;
-
-import com.kunzisoft.keepass.R;
-import com.keepassdroid.app.App;
-import com.keepassdroid.database.PwDatabaseV4;
-import com.keepassdroid.database.PwEntry;
-import com.keepassdroid.database.PwEntryV4;
-import com.keepassdroid.database.PwGroupId;
-import com.keepassdroid.database.PwGroupIdV4;
-import com.keepassdroid.database.PwGroupV4;
-import com.keepassdroid.database.security.ProtectedString;
-import com.keepassdroid.utils.Types;
-import com.keepassdroid.view.EntryEditSection;
-
-import java.util.ArrayList;
-import java.util.Iterator;
-import java.util.Map;
-import java.util.Map.Entry;
-import java.util.UUID;
-
-public class EntryEditActivityV4 extends EntryEditActivity {
-	
-	private ScrollView scroll;
-	private LayoutInflater inflater;
-
-	protected static void putParentId(Intent i, String parentKey, PwGroupV4 parent) {
-		PwGroupId id = parent.getId();
-		PwGroupIdV4 id4 = (PwGroupIdV4) id;
-		
-		i.putExtra(parentKey, Types.UUIDtoBytes(id4.getId()));
-		
-	}
-
-	@Override
-	protected PwGroupId getParentGroupId(Intent i, String key) {
-		byte[] buf = i.getByteArrayExtra(key);
-		UUID id = Types.bytestoUUID(buf);
-		
-		return new PwGroupIdV4(id);
-	}
-	
-	@Override
-	protected void onCreate(Bundle savedInstanceState) {
-		inflater = (LayoutInflater) this.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
-		
-		super.onCreate(savedInstanceState);
-		
-		scroll = (ScrollView) findViewById(R.id.entry_scroll);
-		
-		View add = findViewById(R.id.add_advanced);
-		add.setVisibility(View.VISIBLE);
-		add.setOnClickListener(new View.OnClickListener() {
-			
-			@Override
-			public void onClick(View v) {
-				LinearLayout container = (LinearLayout) findViewById(R.id.advanced_container);
-				
-				EntryEditSection ees = (EntryEditSection) inflater.inflate(R.layout.entry_edit_section, container, false);
-				ees.setData("", new ProtectedString(false, ""));
-				container.addView(ees);
-				
-				// Scroll bottom
-				scroll.post(new Runnable() {
-					@Override
-					public void run() {
-						scroll.fullScroll(ScrollView.FOCUS_DOWN);
-					}
-				});
-				
-			}
-		});
-
-	}
-
-	@Override
-	protected void fillData() {
-		super.fillData();
-		
-		PwEntryV4 entry = (PwEntryV4) mEntry;
-		
-		LinearLayout container = (LinearLayout) findViewById(R.id.advanced_container);
-		
-		if (entry.strings.size() > 0) {
-			for (Entry<String, ProtectedString> pair : entry.strings.entrySet()) {
-				String key = pair.getKey();
-				
-				if (!PwEntryV4.IsStandardString(key)) {
-					EntryEditSection ees = (EntryEditSection) inflater.inflate(R.layout.entry_edit_section, container, false);
-					ees.setData(key, pair.getValue());
-					container.addView(ees);
-				}
-			}
-			
-		}
-		
-	}
-
-	@SuppressWarnings("unchecked")
-	@Override
-	protected PwEntry populateNewEntry() {
-		PwEntryV4 newEntry = (PwEntryV4) mEntry.clone(true);
-		newEntry.history = (ArrayList<PwEntryV4>) newEntry.history.clone();
-		newEntry.createBackup((PwDatabaseV4)App.getDB().pm);
-		
-		newEntry = (PwEntryV4) super.populateNewEntry(newEntry);
-		
-		Map<String, ProtectedString> strings = newEntry.strings;
-		
-		// Delete all new standard strings
-		Iterator<Entry<String, ProtectedString>> iter = strings.entrySet().iterator();
-		while (iter.hasNext()) {
-			Entry<String, ProtectedString> pair = iter.next();
-			if (!PwEntryV4.IsStandardString(pair.getKey())) {
-				iter.remove();
-			}
-		}
-		
-		LinearLayout container = (LinearLayout) findViewById(R.id.advanced_container);
-		for (int i = 0; i < container.getChildCount(); i++) {
-			View view = container.getChildAt(i);
-			
-			TextView keyView = (TextView)view.findViewById(R.id.title);
-			String key = keyView.getText().toString();
-			
-			TextView valueView = (TextView)view.findViewById(R.id.value);
-			String value = valueView.getText().toString();
-			
-			CheckBox cb = (CheckBox)view.findViewById(R.id.protection);
-			boolean protect = cb.isChecked();
-			
-			strings.put(key, new ProtectedString(protect, value));
-		}
-		
-		return newEntry;
-	}
-	
-	public void deleteAdvancedString(View view) {
-		ViewGroup section = (ViewGroup) view.getParent();
-		LinearLayout container = (LinearLayout) findViewById(R.id.advanced_container);
-		
-		for (int i = 0; i < container.getChildCount(); i++) {
-			ViewGroup ees = (ViewGroup) container.getChildAt(i);
-			if (ees == section) {
-				container.removeViewAt(i);
-				container.invalidate();
-				break;
-			}
-		}
-	}
-
-	@Override
-	protected boolean validateBeforeSaving() {
-		if(!super.validateBeforeSaving()) {
-			return false;
-		}
-		
-		LinearLayout container = (LinearLayout) findViewById(R.id.advanced_container);
-		for (int i = 0; i < container.getChildCount(); i++) {
-			EntryEditSection ees = (EntryEditSection) container.getChildAt(i);
-			
-			TextView keyView = (TextView) ees.findViewById(R.id.title);
-			CharSequence key = keyView.getText();
-			
-			if (key == null || key.length() == 0) {
-				Toast.makeText(this, R.string.error_string_key, Toast.LENGTH_LONG).show();
-				return false;
-			}
-			
-		}
-		
-		return true;
-	}
-
-}
- 

app/src/main/java/com/keepassdroid/GroupActivity.java

@@ -1,256 +0,0 @@
-/*
- * Copyright 2017 Brian Pellin, Jeremy Jamet / Kunzisoft.
- *     
- * This file is part of KeePass DX.
- *
- *  KeePass DX is free software: you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation, either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  KeePass DX is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with KeePass DX.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-package com.keepassdroid;
-
-import android.app.Activity;
-import android.app.Dialog;
-import android.content.Intent;
-import android.content.SharedPreferences;
-import android.os.Bundle;
-import android.os.Handler;
-import android.preference.PreferenceManager;
-import android.support.v7.widget.Toolbar;
-import android.util.Log;
-import android.view.ContextMenu;
-import android.view.ContextMenu.ContextMenuInfo;
-import android.view.MenuItem;
-import android.view.View;
-import android.widget.AdapterView.AdapterContextMenuInfo;
-
-import com.kunzisoft.keepass.KeePass;
-import com.kunzisoft.keepass.R;
-import com.keepassdroid.app.App;
-import com.keepassdroid.database.PwDatabase;
-import com.keepassdroid.database.PwDatabaseV3;
-import com.keepassdroid.database.PwDatabaseV4;
-import com.keepassdroid.database.PwGroup;
-import com.keepassdroid.database.PwGroupId;
-import com.keepassdroid.database.PwGroupV3;
-import com.keepassdroid.database.PwGroupV4;
-import com.keepassdroid.database.edit.AddGroup;
-import com.keepassdroid.dialog.ReadOnlyDialog;
-import com.keepassdroid.view.ClickView;
-import com.keepassdroid.view.GroupAddEntryView;
-import com.keepassdroid.view.GroupRootView;
-import com.keepassdroid.view.GroupViewOnlyView;
-
-public abstract class GroupActivity extends GroupBaseActivity
-        implements GroupEditFragment.CreateGroupListener, IconPickerFragment.IconPickerListener {
-
-    private static final String TAG_CREATE_GROUP = "TAG_CREATE_GROUP";
-
-	protected boolean addGroupEnabled = false;
-	protected boolean addEntryEnabled = false;
-	protected boolean isRoot = false;
-	protected boolean readOnly = false;
-	
-	private static final String TAG = "Group Activity:";
-	
-	public static void Launch(Activity act) {
-		Launch(act, null);
-	}
-	
-	public static void Launch(Activity act, PwGroup group) {
-		Intent i;
-		
-		// Need to use PwDatabase since tree may be null
-		PwDatabase db = App.getDB().pm;
-		if ( db instanceof PwDatabaseV3 ) {
-			i = new Intent(act, GroupActivityV3.class);
-		
-			if ( group != null ) {
-				PwGroupV3 g = (PwGroupV3) group;
-				i.putExtra(KEY_ENTRY, g.groupId);
-			}
-		} else if ( db instanceof PwDatabaseV4 ) {
-			i = new Intent(act, GroupActivityV4.class);
-			
-			if ( group != null ) {
-				PwGroupV4 g = (PwGroupV4) group;
-				i.putExtra(KEY_ENTRY, g.uuid.toString());
-			}
-		} else {
-			// Reached if db is null
-			Log.d(TAG, "Tried to launch with null db");
-			return;
-		}
-		
-		act.startActivityForResult(i,0);
-	}
-	
-	protected abstract PwGroupId retrieveGroupId(Intent i);
-	
-	protected void setupButtons() {
-		addGroupEnabled = !readOnly;
-	}
-	
-	@Override
-	protected void onCreate(Bundle savedInstanceState) {
-		super.onCreate(savedInstanceState);
-		
-		if ( isFinishing() ) {
-			return;
-		}
-		
-		setResult(KeePass.EXIT_NORMAL);
-		
-		Log.w(TAG, "Creating tree view");
-		Intent intent = getIntent();
-		
-		PwGroupId id = retrieveGroupId(intent);
-		
-		Database db = App.getDB();
-		readOnly = db.readOnly;
-		PwGroup root = db.pm.rootGroup;
-		if ( id == null ) {
-			mGroup = root;
-		} else {
-			mGroup = db.pm.groups.get(id);
-		}
-		
-		Log.w(TAG, "Retrieved tree");
-		if ( mGroup == null ) {
-			Log.w(TAG, "Group was null");
-			return;
-		}
-		
-		isRoot = mGroup == root;
-		
-		setupButtons();
-
-		if ( addGroupEnabled && addEntryEnabled ) {
-			setContentView(new GroupAddEntryView(this));
-		} else if ( addGroupEnabled ) {
-			setContentView(new GroupRootView(this));
-		} else if ( addEntryEnabled ) {
-			setContentView(new GroupAddEntryView(this));
-			View addGroup = findViewById(R.id.add_group);
-			addGroup.setVisibility(View.GONE);
-		} else {
-			setContentView(new GroupViewOnlyView(this));
-		}
-
-        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
-        toolbar.setTitle("");
-        setSupportActionBar(toolbar);
-
-        if ( mGroup.getParent() != null )
-            toolbar.setNavigationIcon(R.drawable.ic_arrow_up_white_24dp);
-
-		Log.w(TAG, "Set view");
-
-		if ( addGroupEnabled ) {
-			// Add Group button
-			View addGroup = findViewById(R.id.add_group);
-			addGroup.setOnClickListener(new View.OnClickListener() {
-
-				public void onClick(View v) {
-					GroupEditFragment groupEditFragment = new GroupEditFragment();
-					groupEditFragment.show(getSupportFragmentManager(), TAG_CREATE_GROUP);
-				}
-			});
-		}
-		
-		if ( addEntryEnabled ) {
-			// Add Entry button
-			View addEntry = findViewById(R.id.add_entry);
-			addEntry.setOnClickListener(new View.OnClickListener() {
-	
-				public void onClick(View v) {
-					EntryEditActivity.Launch(GroupActivity.this, mGroup);
-				}
-			});
-		}
-		
-		setGroupTitle();
-		setGroupIcon();
-
-		setListAdapter(new PwGroupListAdapter(this, mGroup));
-		registerForContextMenu(getListView());
-		Log.w(TAG, "Finished creating tree");
-		
-		if (isRoot) {
-			showWarnings();
-		}
-	}
-
-    @Override
-    public boolean onOptionsItemSelected(MenuItem item) {
-        switch (item.getItemId()) {
-            case android.R.id.home:
-                onBackPressed();
-                return true;
-        }
-        return super.onOptionsItemSelected(item);
-    }
-
-    @Override
-	public void onCreateContextMenu(ContextMenu menu, View v,
-			ContextMenuInfo menuInfo) {
-		
-		AdapterContextMenuInfo acmi = (AdapterContextMenuInfo) menuInfo;
-		ClickView cv = (ClickView) acmi.targetView;
-		cv.onCreateMenu(menu, menuInfo);
-	}
-	
-	@Override
-	public boolean onContextItemSelected(MenuItem item) {
-		AdapterContextMenuInfo acmi = (AdapterContextMenuInfo) item.getMenuInfo();
-		ClickView cv = (ClickView) acmi.targetView;
-		
-		return cv.onContextItemSelected(item);
-	}
-
-    @Override
-    public void approveCreateGroup(Bundle bundle) {
-        String GroupName = bundle.getString(GroupEditFragment.KEY_NAME);
-        int GroupIconID = bundle.getInt(GroupEditFragment.KEY_ICON_ID);
-        GroupActivity act = GroupActivity.this;
-        Handler handler = new Handler();
-        AddGroup task = AddGroup.getInstance(this, App.getDB(), GroupName, GroupIconID, mGroup, act.new RefreshTask(handler), false);
-        ProgressTask pt = new ProgressTask(act, task, R.string.saving_database);
-        pt.run();
-    }
-
-    @Override
-    public void cancelCreateGroup(Bundle bundle) {
-        // Do nothing here
-    }
-
-    @Override
-    // For icon in create tree dialog
-    public void iconPicked(Bundle bundle) {
-        GroupEditFragment groupEditFragment = (GroupEditFragment) getSupportFragmentManager().findFragmentByTag(TAG_CREATE_GROUP);
-        if (groupEditFragment != null) {
-            groupEditFragment.iconPicked(bundle);
-        }
-    }
-	
-	protected void showWarnings() {
-		if (App.getDB().readOnly) {
-		    SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
-		    
-		    if (prefs.getBoolean(getString(R.string.show_read_only_warning), true)) {
-			    Dialog dialog = new ReadOnlyDialog(this);
-			    dialog.show();
-		    }
-		}
-	}
-}

app/src/main/java/com/keepassdroid/GroupActivityV3.java

@@ -1,44 +0,0 @@
-/*
- * Copyright 2017 Brian Pellin, Jeremy Jamet / Kunzisoft.
- *     
- * This file is part of KeePass DX.
- *
- *  KeePass DX is free software: you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation, either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  KeePass DX is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with KeePass DX.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-package com.keepassdroid;
-
-import android.content.Intent;
-
-import com.keepassdroid.database.PwGroupIdV3;
-
-public class GroupActivityV3 extends GroupActivity {
-
-	@Override
-	protected PwGroupIdV3 retrieveGroupId(Intent i) {
-		int id = i.getIntExtra(KEY_ENTRY, -1);
-		
-		if ( id == -1 ) {
-			return null;
-		}
-		
-		return new PwGroupIdV3(id);
-	}
-	
-	@Override
-	protected void setupButtons() {
-		super.setupButtons();
-		addEntryEnabled = !isRoot && !readOnly;
-	}
-}

app/src/main/java/com/keepassdroid/GroupActivityV4.java

@@ -1,47 +0,0 @@
-/*
- * Copyright 2017 Brian Pellin, Jeremy Jamet / Kunzisoft.
- *     
- * This file is part of KeePass DX.
- *
- *  KeePass DX is free software: you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation, either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  KeePass DX is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with KeePass DX.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-package com.keepassdroid;
-
-import java.util.UUID;
-
-import android.content.Intent;
-
-import com.keepassdroid.database.PwGroupId;
-import com.keepassdroid.database.PwGroupIdV4;
-
-public class GroupActivityV4 extends GroupActivity {
-
-	@Override
-	protected PwGroupId retrieveGroupId(Intent i) {
-		String uuid = i.getStringExtra(KEY_ENTRY);
-		
-		if ( uuid == null || uuid.length() == 0 ) {
-			return null;
-		}
-		
-		return new PwGroupIdV4(UUID.fromString(uuid));
-	}
-
-	@Override
-	protected void setupButtons() {
-		super.setupButtons();
-		addEntryEnabled = !readOnly;
-	}
-}

app/src/main/java/com/keepassdroid/GroupBaseActivity.java

@@ -1,326 +0,0 @@
-/*
- * Copyright 2017 Brian Pellin, Jeremy Jamet / Kunzisoft.
- *     
- * This file is part of KeePass DX.
- *
- *  KeePass DX is free software: you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation, either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  KeePass DX is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with KeePass DX.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-package com.keepassdroid;
-
-
-import android.app.SearchManager;
-import android.content.ComponentName;
-import android.content.Context;
-import android.content.SharedPreferences;
-import android.content.SharedPreferences.Editor;
-import android.net.Uri;
-import android.os.Bundle;
-import android.os.Handler;
-import android.preference.PreferenceManager;
-import android.support.v7.widget.SearchView;
-import android.view.Menu;
-import android.view.MenuInflater;
-import android.view.MenuItem;
-import android.view.View;
-import android.widget.AdapterView;
-import android.widget.BaseAdapter;
-import android.widget.ImageView;
-import android.widget.ListAdapter;
-import android.widget.ListView;
-import android.widget.TextView;
-
-import com.keepassdroid.app.App;
-import com.keepassdroid.compat.ActivityCompat;
-import com.keepassdroid.compat.EditorCompat;
-import com.keepassdroid.database.PwGroup;
-import com.keepassdroid.database.edit.OnFinish;
-import com.keepassdroid.search.SearchResultsActivity;
-import com.keepassdroid.utils.MenuUtil;
-import com.keepassdroid.view.AssignPasswordHelper;
-import com.keepassdroid.view.ClickView;
-import com.keepassdroid.view.GroupViewOnlyView;
-import com.kunzisoft.keepass.KeePass;
-import com.kunzisoft.keepass.R;
-
-public abstract class GroupBaseActivity extends LockCloseListActivity
-		implements AssignMasterKeyDialog.AssignPasswordDialogListener {
-	protected ListView mList;
-	protected ListAdapter mAdapter;
-
-	public static final String KEY_ENTRY = "entry";
-	
-	private SharedPreferences prefs;
-	
-	protected PwGroup mGroup;
-
-	@Override
-	protected void onResume() {
-		super.onResume();
-		
-		refreshIfDirty();
-	}
-	
-	public void refreshIfDirty() {
-		Database db = App.getDB();
-		if ( db.dirty.contains(mGroup) ) {
-			db.dirty.remove(mGroup);
-			((BaseAdapter) mAdapter).notifyDataSetChanged();
-		}
-	}
-
-	protected void onListItemClick(ListView l, View v, int position, long id) {
-		ClickView cv = (ClickView) mAdapter.getView(position, null, null);
-		cv.onClick();
-		
-	}
-
-	@Override
-	protected void onCreate(Bundle savedInstanceState) {
-		super.onCreate(savedInstanceState);
-		
-		// Likely the app has been killed exit the activity 
-		if ( ! App.getDB().Loaded() ) {
-			finish();
-			return;
-		}
-		
-		prefs = PreferenceManager.getDefaultSharedPreferences(this);
-
-		ActivityCompat.invalidateOptionsMenu(this);
-
-		setContentView(new GroupViewOnlyView(this));
-		setResult(KeePass.EXIT_NORMAL);
-
-		styleScrollBars();
-		
-	}
-	
-	protected void styleScrollBars() {
-		ensureCorrectListView();
-		mList.setScrollBarStyle(View.SCROLLBARS_INSIDE_INSET);
-		mList.setTextFilterEnabled(true);
-		
-	}
-	
-	protected void setGroupTitle() {
-		if ( mGroup != null ) {
-			String name = mGroup.getName();
-            TextView tv = (TextView) findViewById(R.id.group_name);
-			if ( name != null && name.length() > 0 ) {
-				if ( tv != null ) {
-					tv.setText(name);
-				}
-			} else {
-				if ( tv != null ) {
-					tv.setText(getText(R.string.root));
-				}
-				
-			}
-		}
-	}
-
-	protected void setGroupIcon() {
-		if (mGroup != null) {
-			ImageView iv = (ImageView) findViewById(R.id.icon);
-			App.getDB().drawFactory.assignDrawableTo(iv, getResources(), mGroup.getIcon());
-		}
-	}
-
-	protected void setListAdapter(ListAdapter adapter) {
-		ensureCorrectListView();
-		mAdapter = adapter;
-		mList.setAdapter(adapter);
-	}
-
-	protected ListView getListView() {
-		ensureCorrectListView();
-		return mList;
-	}
-
-	private void ensureCorrectListView(){
-		mList = (ListView)findViewById(R.id.group_list);
-		if (mList != null) {
-			mList.setOnItemClickListener(
-					new AdapterView.OnItemClickListener() {
-						public void onItemClick(AdapterView<?> parent, View v, int position, long id) {
-							onListItemClick((ListView) parent, v, position, id);
-						}
-					}
-			);
-		}
-	}
-	
-	@Override
-	public boolean onCreateOptionsMenu(Menu menu) {
-		super.onCreateOptionsMenu(menu);
-		
-		MenuInflater inflater = getMenuInflater();
-		inflater.inflate(R.menu.search, menu);
-		MenuUtil.donationMenuInflater(inflater, menu);
-		inflater.inflate(R.menu.tree, menu);
-		inflater.inflate(R.menu.database, menu);
-		inflater.inflate(R.menu.default_menu, menu);
-
-		// Get the SearchView and set the searchable configuration
-		SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
-		assert searchManager != null;
-
-		MenuItem searchItem = menu.findItem(R.id.menu_search);
-        SearchView searchView = null;
-        if (searchItem != null) {
-            searchView = (SearchView) searchItem.getActionView();
-        }
-        if (searchView != null) {
-            searchView.setSearchableInfo(searchManager.getSearchableInfo(new ComponentName(this, SearchResultsActivity.class)));
-            searchView.setIconifiedByDefault(false); // Do not iconify the widget; expand it by default
-        }
-
-		return true;
-	}
-
-	private void setSortMenuText(Menu menu) {
-		boolean sortByName = false;
-
-		// Will be null if onPrepareOptionsMenu is called before onCreate
-		if (prefs != null) {
-			sortByName = prefs.getBoolean(getString(R.string.sort_key), getResources().getBoolean(R.bool.sort_default));
-		}
-		
-		int resId;
-		if ( sortByName ) {
-			resId = R.string.sort_db;
-		} else {
-			resId = R.string.sort_name;
-		}
-			
-		menu.findItem(R.id.menu_sort).setTitle(resId);
-	}
-	
-	@Override
-	public boolean onPrepareOptionsMenu(Menu menu) {
-		if ( ! super.onPrepareOptionsMenu(menu) ) {
-			return false;
-		}
-		
-		setSortMenuText(menu);
-		
-		return true;
-	}
-
-	@Override
-	public boolean onOptionsItemSelected(MenuItem item) {
-		switch ( item.getItemId() ) {
-
-            case R.id.menu_search:
-                onSearchRequested();
-                return true;
-
-            case R.id.menu_sort:
-                toggleSort();
-                return true;
-
-            case R.id.menu_lock:
-                App.setShutdown();
-                setResult(KeePass.EXIT_LOCK);
-                finish();
-                return true;
-
-            case R.id.menu_change_master_key:
-                setPassword();
-                return true;
-
-            default:
-                MenuUtil.onDefaultMenuOptionsItemSelected(this, item);
-                return super.onOptionsItemSelected(item);
-		}
-	}
-	
-	private void toggleSort() {
-		// Toggle setting
-		String sortKey = getString(R.string.sort_key);
-		boolean sortByName = prefs.getBoolean(sortKey, getResources().getBoolean(R.bool.sort_default));
-		Editor editor = prefs.edit();
-		editor.putBoolean(sortKey, ! sortByName);
-		EditorCompat.apply(editor);
-		
-		// Refresh menu titles
-		ActivityCompat.invalidateOptionsMenu(this);
-		
-		// Mark all groups as dirty now to refresh them on load
-		Database db = App.getDB();
-		db.markAllGroupsAsDirty();
-		// We'll manually refresh this tree so we can remove it
-		db.dirty.remove(mGroup);
-		
-		// Tell the adapter to refresh it's list
-		((BaseAdapter) mAdapter).notifyDataSetChanged();
-		
-	}
-
-    @Override
-    public void onAssignKeyDialogPositiveClick(
-    		boolean masterPasswordChecked, String masterPassword,
-			boolean keyFileChecked, Uri keyFile) {
-
-        AssignPasswordHelper assignPasswordHelper =
-                new AssignPasswordHelper(this,
-                        masterPassword, keyFile);
-        assignPasswordHelper.assignPasswordInDatabase(null);
-    }
-
-    @Override
-    public void onAssignKeyDialogNegativeClick(
-			boolean masterPasswordChecked, String masterPassword,
-			boolean keyFileChecked, Uri keyFile) {
-
-    }
-
-	private void setPassword() {
-		AssignMasterKeyDialog dialog = new AssignMasterKeyDialog();
-		dialog.show(getSupportFragmentManager(), "passwordDialog");
-	}
-	
-	public class RefreshTask extends OnFinish {
-		public RefreshTask(Handler handler) {
-			super(handler);
-		}
-
-		@Override
-		public void run() {
-			if ( mSuccess) {
-				refreshIfDirty();
-			} else {
-				displayMessage(GroupBaseActivity.this);
-			}
-		}
-	}
-	
-	public class AfterDeleteGroup extends OnFinish {
-		public AfterDeleteGroup(Handler handler) {
-			super(handler);
-		}
-
-		@Override
-		public void run() {
-			if ( mSuccess) {
-				refreshIfDirty();
-			} else {
-				mHandler.post(new UIToastTask(GroupBaseActivity.this, "Unrecoverable error: " + mMessage));
-				App.setShutdown();
-				finish();
-			}
-		}
-	}
-}

app/src/main/java/com/keepassdroid/LockCloseHideActivity.java

@@ -1,47 +0,0 @@
-/*
- * Copyright 2017 Brian Pellin, Jeremy Jamet / Kunzisoft.
- *     
- * This file is part of KeePass DX.
- *
- *  KeePass DX is free software: you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation, either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  KeePass DX is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with KeePass DX.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-package com.keepassdroid;
-
-import com.keepassdroid.compat.BuildCompat;
-
-import android.os.Build;
-import android.os.Bundle;
-import android.view.WindowManager.LayoutParams;
-
-/** 
- * Locking Close Activity that sets FLAG_SECURE to prevent screenshots, and from
- * appearing in the recent app preview
- * @author Brian Pellin
- *
- */
-public abstract class LockCloseHideActivity extends LockCloseActivity {
-
-	@Override
-	protected void onCreate(Bundle savedInstanceState) {
-		super.onCreate(savedInstanceState);
-		
-		// Several gingerbread devices have problems with FLAG_SECURE
-		int ver = BuildCompat.getSdkVersion();
-		if (ver >= BuildCompat.VERSION_CODE_ICE_CREAM_SANDWICH || ver < BuildCompat.VERSION_CODE_GINGERBREAD) {
-		    getWindow().setFlags(LayoutParams.FLAG_SECURE, LayoutParams.FLAG_SECURE);
-		}
-	}
-
-}

app/src/main/java/com/keepassdroid/LockCloseListActivity.java

@@ -1,32 +0,0 @@
-/*
- * Copyright 2017 Brian Pellin, Jeremy Jamet / Kunzisoft.
- *     
- * This file is part of KeePass DX.
- *
- *  KeePass DX is free software: you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation, either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  KeePass DX is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with KeePass DX.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-package com.keepassdroid;
-
-import com.keepassdroid.timeout.TimeoutHelper;
-
-public abstract class LockCloseListActivity extends LockingActivity {
-
-	@Override
-	protected void onResume() {
-		super.onResume();
-
-		TimeoutHelper.checkShutdown(this);
-	}
-}

app/src/main/java/com/keepassdroid/PasswordActivity.java

@@ -1,711 +0,0 @@
-/*
- * Copyright 2017 Brian Pellin, Jeremy Jamet / Kunzisoft.
- *     
- * This file is part of KeePass DX.
- *
- *  KeePass DX is free software: you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation, either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  KeePass DX is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with KeePass DX.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-package com.keepassdroid;
-
-import android.app.Activity;
-import android.content.Context;
-import android.content.DialogInterface;
-import android.content.DialogInterface.OnClickListener;
-import android.content.Intent;
-import android.content.SharedPreferences;
-import android.net.Uri;
-import android.os.AsyncTask;
-import android.os.Build;
-import android.os.Bundle;
-import android.os.Handler;
-import android.preference.PreferenceManager;
-import android.support.annotation.RequiresApi;
-import android.support.v4.hardware.fingerprint.FingerprintManagerCompat;
-import android.support.v7.widget.Toolbar;
-import android.text.Editable;
-import android.text.TextWatcher;
-import android.view.Menu;
-import android.view.MenuItem;
-import android.view.View;
-import android.widget.Button;
-import android.widget.CheckBox;
-import android.widget.CompoundButton;
-import android.widget.EditText;
-import android.widget.ImageView;
-import android.widget.TextView;
-import android.widget.Toast;
-
-import com.keepassdroid.app.App;
-import com.keepassdroid.compat.BackupManagerCompat;
-import com.keepassdroid.compat.ClipDataCompat;
-import com.keepassdroid.compat.EditorCompat;
-import com.keepassdroid.database.edit.LoadDB;
-import com.keepassdroid.database.edit.OnFinish;
-import com.keepassdroid.dialog.PasswordEncodingDialogHelper;
-import com.keepassdroid.fingerprint.FingerPrintAnimatedVector;
-import com.keepassdroid.fingerprint.FingerPrintHelper;
-import com.keepassdroid.settings.PrefsUtil;
-import com.keepassdroid.utils.EmptyUtils;
-import com.keepassdroid.utils.MenuUtil;
-import com.keepassdroid.utils.UriUtil;
-import com.keepassdroid.utils.Util;
-import com.keepassdroid.view.FingerPrintDialog;
-import com.keepassdroid.view.KeyFileHelper;
-import com.kunzisoft.keepass.KeePass;
-import com.kunzisoft.keepass.R;
-
-import java.io.File;
-import java.io.FileNotFoundException;
-
-import javax.crypto.Cipher;
-
-public class PasswordActivity extends LockingActivity implements FingerPrintHelper.FingerPrintCallback {
-
-    public static final String KEY_DEFAULT_FILENAME = "defaultFileName";
-    private static final String KEY_FILENAME = "fileName";
-    private static final String KEY_KEYFILE = "keyFile";
-    private static final String KEY_PASSWORD = "password";
-    private static final String KEY_LAUNCH_IMMEDIATELY = "launchImmediately";
-    private static final String VIEW_INTENT = "android.intent.action.VIEW";
-
-    private Uri mDbUri = null;
-    private Uri mKeyUri = null;
-    private boolean mRememberKeyfile;
-    SharedPreferences prefs;
-    SharedPreferences prefsNoBackup;
-
-    private FingerPrintHelper fingerPrintHelper;
-    private boolean fingerprintMustBeConfigured = true;
-
-    private int mode;
-    private static final String PREF_KEY_VALUE_PREFIX = "valueFor_"; // key is a combination of db file name and this prefix
-    private static final String PREF_KEY_IV_PREFIX = "ivFor_"; // key is a combination of db file name and this prefix
-
-    private View fingerprintContainerView;
-    private View fingerprintImageView;
-    private FingerPrintAnimatedVector fingerPrintAnimatedVector;
-    private TextView fingerprintTextView;
-    private TextView filenameView;
-    private EditText passwordView;
-    private EditText keyFileView;
-    private Button confirmButtonView;
-    private CheckBox checkboxPasswordView;
-    private CheckBox checkboxKeyfileView;
-
-    private KeyFileHelper keyFileHelper;
-
-    public static void Launch(
-            Activity act,
-            String fileName) throws FileNotFoundException {
-        Launch(act, fileName, "");
-    }
-
-    public static void Launch(
-            Activity act,
-            String fileName,
-            String keyFile) throws FileNotFoundException {
-        if (EmptyUtils.isNullOrEmpty(fileName)) {
-            throw new FileNotFoundException();
-        }
-
-        Uri uri = UriUtil.parseDefaultFile(fileName);
-        assert uri != null;
-        String scheme = uri.getScheme();
-
-        if (!EmptyUtils.isNullOrEmpty(scheme) && scheme.equalsIgnoreCase("file")) {
-            File dbFile = new File(uri.getPath());
-            if (!dbFile.exists()) {
-                throw new FileNotFoundException();
-            }
-        }
-
-        Intent i = new Intent(act, PasswordActivity.class);
-        i.putExtra(KEY_FILENAME, fileName);
-        i.putExtra(KEY_KEYFILE, keyFile);
-
-        act.startActivityForResult(i, 0);
-
-    }
-
-    @Override
-    protected void onActivityResult(
-            int requestCode,
-            int resultCode,
-            Intent data) {
-        super.onActivityResult(requestCode, resultCode, data);
-
-        keyFileHelper.onActivityResultCallback(requestCode, resultCode, data,
-                new KeyFileHelper.KeyFileCallback() {
-                    @Override
-                    public void onKeyFileResultCallback(Uri uri) {
-                        if(uri != null) {
-                            keyFileView.setText(uri.toString());
-                        }
-                    }
-                });
-
-        switch (requestCode) {
-            case KeePass.EXIT_NORMAL:
-                setEmptyViews();
-                App.getDB().clear();
-                break;
-
-            case KeePass.EXIT_LOCK:
-                setResult(KeePass.EXIT_LOCK);
-                setEmptyViews();
-                finish();
-                App.getDB().clear();
-                break;
-        }
-
-    }
-
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-
-        Intent i = getIntent();
-
-        prefs = PreferenceManager.getDefaultSharedPreferences(this);
-        prefsNoBackup = getSharedPreferences("nobackup", Context.MODE_PRIVATE);
-
-        mRememberKeyfile = prefs.getBoolean(getString(R.string.keyfile_key), getResources().getBoolean(R.bool.keyfile_default));
-        setContentView(R.layout.password);
-
-        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
-        toolbar.setTitle(getString(R.string.app_name));
-        setSupportActionBar(toolbar);
-        assert getSupportActionBar() != null;
-        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
-        getSupportActionBar().setDisplayShowHomeEnabled(true);
-
-        confirmButtonView = (Button) findViewById(R.id.pass_ok);
-        fingerprintContainerView = findViewById(R.id.fingerprint_container);
-        fingerprintImageView = findViewById(R.id.fingerprint_image);
-        fingerprintTextView = (TextView) findViewById(R.id.fingerprint_label);
-        filenameView = (TextView) findViewById(R.id.filename);
-        passwordView = (EditText) findViewById(R.id.password);
-        keyFileView = (EditText) findViewById(R.id.pass_keyfile);
-        checkboxPasswordView = (CheckBox) findViewById(R.id.password_checkbox);
-        checkboxKeyfileView = (CheckBox) findViewById(R.id.keyfile_checkox);
-
-        passwordView.addTextChangedListener(new TextWatcher() {
-            @Override
-            public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) {}
-
-            @Override
-            public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {}
-
-            @Override
-            public void afterTextChanged(Editable editable) {
-                checkboxPasswordView.setChecked(true);
-            }
-        });
-        keyFileView.addTextChangedListener(new TextWatcher() {
-            @Override
-            public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) {}
-
-            @Override
-            public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {}
-
-            @Override
-            public void afterTextChanged(Editable editable) {
-                checkboxKeyfileView.setChecked(true);
-            }
-        });
-
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
-            fingerPrintAnimatedVector = new FingerPrintAnimatedVector(this,
-                            (ImageView) fingerprintImageView);
-        }
-
-        new InitTask().execute(i);
-    }
-
-    @Override
-    protected void onResume() {
-        super.onResume();
-
-        // If the application was shutdown make sure to clear the password field, if it
-        // was saved in the instance state
-        if (App.isShutdown()) {
-            setEmptyViews();
-        }
-
-        // Clear the shutdown flag
-        App.clearShutdown();
-
-        // checks if fingerprint is available, will also start listening for fingerprints when available
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
-            initForFingerprint();
-            checkAvailability();
-            if (fingerPrintAnimatedVector != null) {
-                fingerPrintAnimatedVector.startScan();
-            }
-        }
-    }
-
-    private void setEmptyViews() {
-        passwordView.setText("");
-        keyFileView.setText("");
-        checkboxPasswordView.setChecked(false);
-        checkboxKeyfileView.setChecked(false);
-    }
-
-    private void retrieveSettings() {
-        String defaultFilename = prefs.getString(KEY_DEFAULT_FILENAME, "");
-        if (!EmptyUtils.isNullOrEmpty(mDbUri.getPath()) && UriUtil.equalsDefaultfile(mDbUri, defaultFilename)) {
-            CompoundButton checkbox = (CompoundButton) findViewById(R.id.default_database);
-            checkbox.setChecked(true);
-        }
-    }
-
-    private Uri getKeyFile(Uri dbUri) {
-        if (mRememberKeyfile) {
-            return App.getFileHistory().getFileByName(dbUri);
-        } else {
-            return null;
-        }
-    }
-
-    private void populateView() {
-        String db = (mDbUri == null) ? "" : mDbUri.toString();
-        if (!db.isEmpty())
-            filenameView.setText(db);
-
-        String key = (mKeyUri == null) ? "" : mKeyUri.toString();
-        if (!key.isEmpty())
-            keyFileView.setText(key);
-    }
-
-    // fingerprint related code here
-    @RequiresApi(api = Build.VERSION_CODES.M)
-    private void initForFingerprint() {
-        fingerPrintHelper = new FingerPrintHelper(this, this);
-
-        // when text entered we can enable the logon/purchase button and if required update encryption/decryption mode
-        passwordView.addTextChangedListener(new TextWatcher() {
-            @Override
-            public void beforeTextChanged(
-                    final CharSequence s,
-                    final int start,
-                    final int count,
-                    final int after) {}
-
-            @Override
-            public void onTextChanged(
-                    final CharSequence s,
-                    final int start,
-                    final int before,
-                    final int count) {}
-
-            @Override
-            public void afterTextChanged(final Editable s) {
-                if ( !fingerprintMustBeConfigured ) {
-                    final boolean validInput = s.length() > 0;
-                    // encrypt or decrypt mode based on how much input or not
-                    fingerprintTextView.setText(validInput ? R.string.store_with_fingerprint : R.string.scanning_fingerprint);
-                    mode = validInput ? toggleMode(Cipher.ENCRYPT_MODE) : toggleMode(Cipher.DECRYPT_MODE);
-                }
-            }
-        });
-
-        // callback for fingerprint findings
-        fingerPrintHelper.setAuthenticationCallback(new FingerprintManagerCompat.AuthenticationCallback() {
-            @Override
-            public void onAuthenticationError(
-                    final int errorCode,
-                    final CharSequence errString) {
-
-                // this is triggered on stop/start listening done by helper to switch between modes so don't restart here
-                // errorCode = 5
-                // errString = "Fingerprint operation canceled."
-                //onFingerprintException();
-                //fingerprintTextView.setText(errString);
-                // true false fingerprint readings are handled otherwise with the toast messages, see below in code
-            }
-
-            @Override
-            public void onAuthenticationHelp(
-                    final int helpCode,
-                    final CharSequence helpString) {
-
-                onFingerprintException(new Exception("onAuthenticationHelp"));
-                fingerprintTextView.setText(helpString);
-            }
-
-            @Override
-            public void onAuthenticationSucceeded(final FingerprintManagerCompat.AuthenticationResult result) {
-
-                if (mode == Cipher.ENCRYPT_MODE) {
-
-                    // newly store the entered password in encrypted way
-                    final String password = passwordView.getText().toString();
-                    fingerPrintHelper.encryptData(password);
-
-                } else if (mode == Cipher.DECRYPT_MODE) {
-
-                    // retrieve the encrypted value from preferences
-                    final String encryptedValue = prefsNoBackup.getString(getPreferenceKeyValue(), null);
-                    if (encryptedValue != null) {
-                        fingerPrintHelper.decryptData(encryptedValue);
-                    }
-                }
-            }
-
-            @Override
-            public void onAuthenticationFailed() {
-                onFingerprintException(new Exception("onAuthenticationFailed"));
-            }
-        });
-    }
-
-    private String getPreferenceKeyValue() {
-        // makes it possible to store passwords uniqly per database
-        return PREF_KEY_VALUE_PREFIX + (mDbUri != null ? mDbUri.getPath() : "");
-    }
-
-    private String getPreferenceKeyIvSpec() {
-        return PREF_KEY_IV_PREFIX + (mDbUri != null ? mDbUri.getPath() : "");
-    }
-
-    @RequiresApi(api = Build.VERSION_CODES.M)
-    private int toggleMode(final int newMode) {
-        mode = newMode;
-        switch (mode) {
-            case Cipher.ENCRYPT_MODE:
-                fingerPrintHelper.initEncryptData();
-                break;
-            case Cipher.DECRYPT_MODE:
-                final String ivSpecValue = prefsNoBackup.getString(getPreferenceKeyIvSpec(), null);
-                fingerPrintHelper.initDecryptData(ivSpecValue);
-                break;
-        }
-        return newMode;
-    }
-
-    @Override
-    protected void onPause() {
-        super.onPause();
-
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M
-                && fingerPrintAnimatedVector != null) {
-            fingerPrintAnimatedVector.stopScan();
-        }
-
-        // stop listening when we go in background
-        if (fingerPrintHelper != null) {
-            fingerPrintHelper.stopListening();
-        }
-    }
-
-    private void setFingerPrintVisibility(int vis) {
-        fingerprintContainerView.setVisibility(vis);
-    }
-
-    @RequiresApi(api = Build.VERSION_CODES.M)
-    private void checkAvailability() {
-
-        // fingerprint not supported (by API level or hardware) so keep option hidden
-        // or manually disable
-        if (!PrefsUtil.isFingerprintEnable(getApplicationContext())
-                || !fingerPrintHelper.isFingerprintSupported(FingerprintManagerCompat.from(this))) {
-            setFingerPrintVisibility(View.GONE);
-        }
-        // fingerprint is available but not configured show icon but in disabled state with some information
-        else {
-            // show explanations
-            fingerprintContainerView.setOnClickListener(new View.OnClickListener() {
-                @Override
-                public void onClick(View view) {
-                    FingerPrintDialog fingerPrintDialog = new FingerPrintDialog();
-                    fingerPrintDialog.show(getSupportFragmentManager(), "fingerprintDialog");
-                }
-            });
-            setFingerPrintVisibility(View.VISIBLE);
-
-            if (!fingerPrintHelper.hasEnrolledFingerprints()) {
-                fingerprintImageView.setAlpha(0.3f);
-                // This happens when no fingerprints are registered. Listening won't start
-                fingerprintTextView.setText(R.string.configure_fingerprint);
-            }
-            // finally fingerprint available and configured so we can use it
-            else {
-                fingerprintMustBeConfigured = false;
-                fingerprintImageView.setAlpha(1f);
-
-                // fingerprint available but no stored password found yet for this DB so show info don't listen
-                if (prefsNoBackup.getString(getPreferenceKeyValue(), null) == null) {
-                    fingerprintTextView.setText(R.string.no_password_stored);
-                }
-                // all is set here so we can confirm to user and start listening for fingerprints
-                else {
-                    fingerprintTextView.setText(R.string.scanning_fingerprint);
-                    // listen for decryption by default
-                    toggleMode(Cipher.DECRYPT_MODE);
-                }
-            }
-        }
-    }
-
-    @Override
-    public void handleEncryptedResult(
-            final String value,
-            final String ivSpec) {
-
-        prefsNoBackup.edit()
-                .putString(getPreferenceKeyValue(), value)
-                .putString(getPreferenceKeyIvSpec(), ivSpec)
-                .apply();
-        // and remove visual input to reset UI
-        confirmButtonView.performClick();
-        fingerprintTextView.setText(R.string.encrypted_value_stored);
-    }
-
-    @Override
-    public void handleDecryptedResult(final String value) {
-        // on decrypt enter it for the purchase/login action
-        passwordView.setText(value);
-        confirmButtonView.performClick();
-    }
-
-    @RequiresApi(api = Build.VERSION_CODES.M)
-    @Override
-    public void onInvalidKeyException() {
-        Toast.makeText(this, R.string.fingerprint_invalid_key, Toast.LENGTH_SHORT).show();
-        checkAvailability(); // restarts listening
-    }
-
-    @RequiresApi(api = Build.VERSION_CODES.M)
-    @Override
-    public void onFingerprintException(Exception e) {
-        //Toast.makeText(this, R.string.fingerprint_error, Toast.LENGTH_SHORT).show();
-        checkAvailability();
-        e.printStackTrace();
-    }
-
-    private class DefaultCheckChange implements CompoundButton.OnCheckedChangeListener {
-
-        @Override
-        public void onCheckedChanged(
-                CompoundButton buttonView,
-                boolean isChecked) {
-
-            String newDefaultFileName;
-
-            if (isChecked) {
-                newDefaultFileName = mDbUri.toString();
-            } else {
-                newDefaultFileName = "";
-            }
-
-            SharedPreferences.Editor editor = prefs.edit();
-            editor.putString(KEY_DEFAULT_FILENAME, newDefaultFileName);
-            EditorCompat.apply(editor);
-
-            BackupManagerCompat backupManager = new BackupManagerCompat(PasswordActivity.this);
-            backupManager.dataChanged();
-
-        }
-
-    }
-
-    private class OkClickHandler implements View.OnClickListener {
-
-        public void onClick(View view) {
-            String pass = passwordView.getText().toString();
-            String key = keyFileView.getText().toString();
-            loadDatabase(pass, key);
-        }
-    }
-
-    private void loadDatabase(
-            String pass,
-            String keyfile) {
-        loadDatabase(pass, UriUtil.parseDefaultFile(keyfile));
-    }
-
-    private void loadDatabase(
-            String pass,
-            Uri keyfile) {
-
-        // Clear before we load
-        Database db = App.getDB();
-        db.clear();
-
-        // Clear the shutdown flag
-        App.clearShutdown();
-
-        if (!checkboxPasswordView.isChecked()) {
-            pass = "";
-        }
-        if (!checkboxKeyfileView.isChecked()) {
-            keyfile = null;
-        }
-
-        Handler handler = new Handler();
-        LoadDB task = new LoadDB(db, PasswordActivity.this, mDbUri, pass, keyfile, new AfterLoad(handler, db));
-        ProgressTask pt = new ProgressTask(PasswordActivity.this, task, R.string.loading_database);
-        pt.run();
-    }
-
-    private String getEditText(int resId) {
-        return Util.getEditText(this, resId);
-    }
-
-    @Override
-    public boolean onCreateOptionsMenu(Menu menu) {
-        super.onCreateOptionsMenu(menu);
-        MenuUtil.defaultMenuInflater(getMenuInflater(), menu);
-        return true;
-    }
-
-    @Override
-    public boolean onOptionsItemSelected(MenuItem item) {
-
-        switch (item.getItemId()) {
-            case android.R.id.home:
-                finish();
-                break;
-
-            default:
-                return MenuUtil.onDefaultMenuOptionsItemSelected(this, item);
-        }
-
-        return super.onOptionsItemSelected(item);
-    }
-
-    private final class AfterLoad extends OnFinish {
-
-        private Database db;
-
-        AfterLoad(
-                Handler handler,
-                Database db) {
-            super(handler);
-
-            this.db = db;
-        }
-
-        @Override
-        public void run() {
-            if (db.passwordEncodingError) {
-                PasswordEncodingDialogHelper dialog = new PasswordEncodingDialogHelper();
-                dialog.show(PasswordActivity.this, new OnClickListener() {
-
-                    @Override
-                    public void onClick(
-                            DialogInterface dialog,
-                            int which) {
-                        GroupActivity.Launch(PasswordActivity.this);
-                    }
-
-                });
-            } else if (mSuccess) {
-                GroupActivity.Launch(PasswordActivity.this);
-            } else {
-                displayMessage(PasswordActivity.this);
-            }
-        }
-    }
-
-    private class InitTask extends AsyncTask<Intent, Void, Integer> {
-
-        String password = "";
-        boolean launch_immediately = false;
-
-        @Override
-        protected Integer doInBackground(Intent... args) {
-            Intent i = args[0];
-            String action = i.getAction();
-            if (action != null && action.equals(VIEW_INTENT)) {
-                Uri incoming = i.getData();
-                mDbUri = incoming;
-
-                mKeyUri = ClipDataCompat.getUriFromIntent(i, KEY_KEYFILE);
-
-                if (incoming == null) {
-                    return R.string.error_can_not_handle_uri;
-                } else if (incoming.getScheme().equals("file")) {
-                    String fileName = incoming.getPath();
-
-                    if (fileName.length() == 0) {
-                        // No file name
-                        return R.string.FileNotFound;
-                    }
-
-                    File dbFile = new File(fileName);
-                    if (!dbFile.exists()) {
-                        // File does not exist
-                        return R.string.FileNotFound;
-                    }
-
-                    if (mKeyUri == null) {
-                        mKeyUri = getKeyFile(mDbUri);
-                    }
-                } else if (incoming.getScheme().equals("content")) {
-                    if (mKeyUri == null) {
-                        mKeyUri = getKeyFile(mDbUri);
-                    }
-                } else {
-                    return R.string.error_can_not_handle_uri;
-                }
-                password = i.getStringExtra(KEY_PASSWORD);
-                launch_immediately = i.getBooleanExtra(KEY_LAUNCH_IMMEDIATELY, false);
-
-            } else {
-                mDbUri = UriUtil.parseDefaultFile(i.getStringExtra(KEY_FILENAME));
-                mKeyUri = UriUtil.parseDefaultFile(i.getStringExtra(KEY_KEYFILE));
-                password = i.getStringExtra(KEY_PASSWORD);
-                launch_immediately = i.getBooleanExtra(KEY_LAUNCH_IMMEDIATELY, false);
-
-                if (mKeyUri == null || mKeyUri.toString().length() == 0) {
-                    mKeyUri = getKeyFile(mDbUri);
-                }
-            }
-            return null;
-        }
-
-        public void onPostExecute(Integer result) {
-            if (result != null) {
-                Toast.makeText(PasswordActivity.this, result, Toast.LENGTH_LONG).show();
-                finish();
-                return;
-            }
-
-            populateView();
-
-            Button confirmButton = (Button) findViewById(R.id.pass_ok);
-            confirmButton.setOnClickListener(new OkClickHandler());
-
-            if (password != null) {
-                passwordView.setText(password);
-            }
-
-            CompoundButton defaultCheck = (CompoundButton) findViewById(R.id.default_database);
-            defaultCheck.setOnCheckedChangeListener(new DefaultCheckChange());
-
-            View browseView = findViewById(R.id.browse_button);
-            keyFileHelper = new KeyFileHelper(PasswordActivity.this);
-            browseView.setOnClickListener(keyFileHelper.getOpenFileOnClickViewListener());
-
-            retrieveSettings();
-
-            if (launch_immediately) {
-                loadDatabase(password, mKeyUri);
-            }
-        }
-    }
-}

app/src/main/java/com/keepassdroid/PwGroupListAdapter.java

@@ -1,148 +0,0 @@
-/*
- * Copyright 2017 Brian Pellin, Jeremy Jamet / Kunzisoft.
- *     
- * This file is part of KeePass DX.
- *
- *  KeePass DX is free software: you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation, either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  KeePass DX is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with KeePass DX.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-package com.keepassdroid;
-
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.Comparator;
-import java.util.List;
-
-import android.content.SharedPreferences;
-import android.preference.PreferenceManager;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.BaseAdapter;
-
-import com.kunzisoft.keepass.R;
-import com.keepassdroid.database.PwEntry;
-import com.keepassdroid.database.PwGroup;
-import com.keepassdroid.view.PwEntryView;
-import com.keepassdroid.view.PwGroupView;
-
-public class PwGroupListAdapter extends BaseAdapter {
-
-	private GroupBaseActivity mAct;
-	private PwGroup mGroup;
-	private List<PwGroup> groupsForViewing;
-	private List<PwEntry> entriesForViewing;
-	private Comparator<PwEntry> entryComp = new PwEntry.EntryNameComparator();
-	private Comparator<PwGroup> groupComp = new PwGroup.GroupNameComparator();
-	private SharedPreferences prefs;
-	
-	public PwGroupListAdapter(GroupBaseActivity act, PwGroup group) {
-		mAct = act;
-		mGroup = group;
-		prefs = PreferenceManager.getDefaultSharedPreferences(act);
-		
-		filterAndSort();
-		
-	}
-	
-	@Override
-	public void notifyDataSetChanged() {
-		super.notifyDataSetChanged();
-		
-		filterAndSort();
-	}
-
-	@Override
-	public void notifyDataSetInvalidated() {
-		super.notifyDataSetInvalidated();
-		
-		filterAndSort();
-	}
-
-	private void filterAndSort() {
-		entriesForViewing = new ArrayList<PwEntry>();
-		
-		for (int i = 0; i < mGroup.childEntries.size(); i++) {
-			PwEntry entry = mGroup.childEntries.get(i);
-			if ( ! entry.isMetaStream() ) {
-				entriesForViewing.add(entry);
-			}
-		}
-		
-		boolean sortLists = prefs.getBoolean(mAct.getString(R.string.sort_key),	mAct.getResources().getBoolean(R.bool.sort_default)); 
-		if ( sortLists ) {
-			groupsForViewing = new ArrayList<PwGroup>(mGroup.childGroups);
-			
-			Collections.sort(entriesForViewing, entryComp);
-			Collections.sort(groupsForViewing, groupComp);
-		} else {
-			groupsForViewing = mGroup.childGroups;
-		}
-	}
-	
-	public int getCount() {
-		
-		return groupsForViewing.size() + entriesForViewing.size();
-	}
-
-	public Object getItem(int position) {
-		return position;
-	}
-
-	public long getItemId(int position) {
-		return position;
-	}
-
-	public View getView(int position, View convertView, ViewGroup parent) {
-		int size = groupsForViewing.size();
-		
-		if ( position < size ) { 
-			return createGroupView(position, convertView);
-		} else {
-			return createEntryView(position - size, convertView);
-		}
-	}
-
-	private View createGroupView(int position, View convertView) {
-		PwGroup group = groupsForViewing.get(position);
-		PwGroupView gv;
-		
-		if (convertView == null || !(convertView instanceof PwGroupView)) {
-	
-			gv = PwGroupView.getInstance(mAct, group);
-		} 
-		else {
-			gv = (PwGroupView) convertView;
-			gv.convertView(group);
-			
-		}
-		
-		return gv;
-	}
-
-	private PwEntryView createEntryView(int position, View convertView) {
-		PwEntry entry = entriesForViewing.get(position);
-		PwEntryView ev;
-
-		if (convertView == null || !(convertView instanceof PwEntryView)) {
-			ev = PwEntryView.getInstance(mAct, entry, position);
-		}
-		else {
-			ev = (PwEntryView) convertView;
-			ev.convertView(entry, position);
-		}
-
-		return ev;
-	}
-
-}

app/src/main/java/com/keepassdroid/activities/AboutActivity.java

@@ -17,7 +17,7 @@
  *  along with KeePass DX.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
-package com.keepassdroid;
+package com.keepassdroid.activities;
 
 import android.content.pm.PackageInfo;
 import android.content.pm.PackageManager.NameNotFoundException;
@@ -27,8 +27,10 @@ import android.util.Log;
 import android.view.MenuItem;
 import android.widget.TextView;
 
-import com.kunzisoft.keepass.R;
 import com.keepassdroid.stylish.StylishActivity;
+import com.kunzisoft.keepass.R;
+
+import org.joda.time.DateTime;
 
 public class AboutActivity extends StylishActivity {
 
@@ -56,6 +58,9 @@ public class AboutActivity extends StylishActivity {
         version = getString(R.string.version_label) + " " + version;
         TextView versionText = (TextView) findViewById(R.id.activity_about_version);
         versionText.setText(version);
+
+        TextView disclaimerText = (TextView) findViewById(R.id.disclaimer);
+        disclaimerText.setText(getString(R.string.disclaimer_formal, new DateTime().getYear()));
     }
 
     @Override

app/src/main/java/com/keepassdroid/activities/EntryActivity.java

@@ -18,7 +18,7 @@
  *  along with KeePass DX.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
-package com.keepassdroid;
+package com.keepassdroid.activities;
 
 import android.app.Activity;
 import android.app.AlertDialog;
@@ -32,14 +32,14 @@ import android.content.DialogInterface;
 import android.content.Intent;
 import android.content.IntentFilter;
 import android.content.SharedPreferences;
+import android.graphics.drawable.Drawable;
 import android.os.Bundle;
 import android.os.Handler;
 import android.preference.PreferenceManager;
-import android.support.v7.widget.Toolbar;
 import android.support.v4.app.NotificationCompat;
+import android.support.v7.widget.Toolbar;
 import android.text.SpannableString;
 import android.text.method.LinkMovementMethod;
-import android.text.method.PasswordTransformationMethod;
 import android.text.util.Linkify;
 import android.view.Menu;
 import android.view.MenuInflater;
@@ -49,87 +49,59 @@ import android.widget.ImageView;
 import android.widget.TextView;
 import android.widget.Toast;
 
-import com.kunzisoft.keepass.KeePass;
-import com.kunzisoft.keepass.R;
 import com.keepassdroid.app.App;
 import com.keepassdroid.compat.ActivityCompat;
+import com.keepassdroid.database.Database;
 import com.keepassdroid.database.PwDatabase;
 import com.keepassdroid.database.PwEntry;
-import com.keepassdroid.database.PwEntryV4;
 import com.keepassdroid.database.exception.SamsungClipboardException;
 import com.keepassdroid.intents.Intents;
+import com.keepassdroid.settings.PreferencesUtil;
+import com.keepassdroid.password.PasswordActivity;
+import com.keepassdroid.tasks.UIToastTask;
 import com.keepassdroid.utils.EmptyUtils;
 import com.keepassdroid.utils.MenuUtil;
 import com.keepassdroid.utils.Types;
 import com.keepassdroid.utils.Util;
+import com.keepassdroid.view.EntryContentsView;
+import com.kunzisoft.keepass.R;
 
-import java.text.DateFormat;
 import java.util.Date;
+import java.util.Map;
 import java.util.Timer;
 import java.util.TimerTask;
 import java.util.UUID;
 
-import static com.keepassdroid.settings.PrefsUtil.isClipboardNotificationsEnable;
+import static com.keepassdroid.settings.PreferencesUtil.isClipboardNotificationsEnable;
 
-public class EntryActivity extends LockCloseHideActivity {
+public class EntryActivity extends LockingHideActivity {
 	public static final String KEY_ENTRY = "entry";
-	public static final String KEY_REFRESH_POS = "refresh_pos";
 
 	public static final int NOTIFY_USERNAME = 1;
 	public static final int NOTIFY_PASSWORD = 2;
 
-	public static void Launch(Activity act, PwEntry pw, int pos) {
-		Intent i;
-		
-		if ( pw instanceof PwEntryV4 ) {
-			i = new Intent(act, EntryActivityV4.class);
-		} else {
-			i = new Intent(act, EntryActivity.class);
-		}
-		
-		i.putExtra(KEY_ENTRY, Types.UUIDtoBytes(pw.getUUID()));
-		i.putExtra(KEY_REFRESH_POS, pos);
-		
-		act.startActivityForResult(i,0);
-	}
+	private ImageView titleIconView;
+    private TextView titleView;
+	private EntryContentsView entryContentsView;
 	
 	protected PwEntry mEntry;
 	private Timer mTimer = new Timer();
 	private boolean mShowPassword;
-	private int mPos;
 	private NotificationManager mNM;
 	private BroadcastReceiver mIntentReceiver;
 	protected boolean readOnly = false;
 
-	private DateFormat dateFormat;
-	private DateFormat timeFormat;
-	
-	protected void setEntryView() {
-		setContentView(R.layout.entry_view);
-	}
-	
-	protected void setupEditButtons() {
-		View edit = findViewById(R.id.entry_edit);
-		edit.setOnClickListener(new View.OnClickListener() {
-
-			public void onClick(View v) {
-				EntryEditActivity.Launch(EntryActivity.this, mEntry);
-			}
-			
-		});
-		
-		if (readOnly) {
-			edit.setVisibility(View.GONE);
-		}
+    public static void launch(Activity act, PwEntry pw) {
+        Intent intent = new Intent(act, EntryActivity.class);
+        intent.putExtra(KEY_ENTRY, Types.UUIDtoBytes(pw.getUUID()));
+        act.startActivityForResult(intent, EntryEditActivity.ADD_OR_UPDATE_ENTRY_REQUEST_CODE);
     }
 
 	@Override
 	protected void onCreate(Bundle savedInstanceState) {
-		SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
-		mShowPassword = ! prefs.getBoolean(getString(R.string.maskpass_key), getResources().getBoolean(R.bool.maskpass_default));
-		
 		super.onCreate(savedInstanceState);
-		setEntryView();
+
+        setContentView(R.layout.entry_view);
 
         Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
         setSupportActionBar(toolbar);
@@ -138,10 +110,6 @@ public class EntryActivity extends LockCloseHideActivity {
         getSupportActionBar().setDisplayHomeAsUpEnabled(true);
         getSupportActionBar().setDisplayShowHomeEnabled(true);
 
-		Context appCtx = getApplicationContext();
-		dateFormat = android.text.format.DateFormat.getDateFormat(appCtx);
-		timeFormat = android.text.format.DateFormat.getTimeFormat(appCtx);
-
 		Database db = App.getDB();
 		// Likely the app has been killed exit the activity 
 		if ( ! db.Loaded() ) {
@@ -150,12 +118,11 @@ public class EntryActivity extends LockCloseHideActivity {
 		}
 		readOnly = db.readOnly;
 
-		setResult(KeePass.EXIT_NORMAL);
+        mShowPassword = !PreferencesUtil.isPasswordMask(this);
 
+		// Get Entry from UUID
 		Intent i = getIntent();
 		UUID uuid = Types.bytestoUUID(i.getByteArrayExtra(KEY_ENTRY));
-		mPos = i.getIntExtra(KEY_REFRESH_POS, -1);
-		
 		mEntry = db.pm.entries.get(uuid);
 		if (mEntry == null) {
 			Toast.makeText(this, R.string.entry_not_found, Toast.LENGTH_LONG).show();
@@ -169,9 +136,26 @@ public class EntryActivity extends LockCloseHideActivity {
 		// Update last access time.
 		mEntry.touch(false, false);
 
-		fillData(false);
+        // Get views
+        titleIconView = (ImageView) findViewById(R.id.entry_icon);
+        titleView = (TextView) findViewById(R.id.entry_title);
+        entryContentsView = (EntryContentsView) findViewById(R.id.entry_contents);
+        entryContentsView.applyFontVisibilityToFields(PreferencesUtil.fieldFontIsInVisibility(this));
 
-		setupEditButtons();
+		fillData();
+
+		// Setup Edit Buttons
+        View edit = findViewById(R.id.entry_edit);
+        edit.setOnClickListener(new View.OnClickListener() {
+
+            public void onClick(View v) {
+                EntryEditActivity.Launch(EntryActivity.this, mEntry);
+            }
+
+        });
+        if (readOnly) {
+            edit.setVisibility(View.GONE);
+        }
 
 		// If notifications enabled in settings
 		if (isClipboardNotificationsEnable(getApplicationContext())) {
@@ -254,60 +238,88 @@ public class EntryActivity extends LockCloseHideActivity {
 		return notify;
 	}
 
-	private String getDateTime(Date dt) {
-		return dateFormat.format(dt) + " " + timeFormat.format(dt);
-		
+    private void populateTitle(Drawable drawIcon, String text) {
+        titleIconView.setImageDrawable(drawIcon);
+        titleView.setText(text);
     }
 
-	protected void fillData(boolean trimList) {
-		ImageView iv = (ImageView) findViewById(R.id.entry_icon);
+	protected void fillData() {
 		Database db = App.getDB();
-		db.drawFactory.assignDrawableTo(iv, getResources(), mEntry.getIcon());
-		
 		PwDatabase pm = db.pm;
 
-		populateText(R.id.entry_title, mEntry.getTitle(true, pm));
-		populateText(R.id.entry_user_name, mEntry.getUsername(true, pm));
+		// Assign title
+        populateTitle(db.drawFactory.getIconDrawable(getResources(), mEntry.getIcon()),
+                mEntry.getTitle(true, pm));
 
-		populateText(R.id.entry_url, mEntry.getUrl(true, pm));
-		populateText(R.id.entry_password, mEntry.getPassword(true, pm));
-		setPasswordStyle();
+        // Assign basic fields
+        entryContentsView.assignUserName(mEntry.getUsername(true, pm));
+        entryContentsView.assignUserNameCopyListener(new View.OnClickListener() {
+			@Override
+			public void onClick(View view) {
+				timeoutCopyToClipboard(mEntry.getUsername(true, App.getDB().pm),
+                        getString(R.string.copy_field, getString(R.string.entry_user_name)));
+			}
+		});
 
-		populateText(R.id.entry_created, getDateTime(mEntry.getCreationTime()));
-		populateText(R.id.entry_modified, getDateTime(mEntry.getLastModificationTime()));
-		populateText(R.id.entry_accessed, getDateTime(mEntry.getLastAccessTime()));
+		entryContentsView.assignPassword(mEntry.getPassword(true, pm));
+		entryContentsView.assignPasswordCopyListener(new View.OnClickListener() {
+			@Override
+			public void onClick(View view) {
+				timeoutCopyToClipboard(mEntry.getPassword(true, App.getDB().pm),
+                        getString(R.string.copy_field, getString(R.string.entry_password)));
+			}
+		});
 
+        entryContentsView.assignURL(mEntry.getUrl(true, pm));
+
+        entryContentsView.setHiddenPasswordStyle(!mShowPassword);
+        entryContentsView.assignComment(mEntry.getNotes(true, pm));
+
+        // Assign custom fields
+		if (mEntry.allowExtraFields()) {
+			entryContentsView.clearExtraFields();
+			for (Map.Entry<String, String> field : mEntry.getExtraFields(pm).entrySet()) {
+                final String label = field.getKey();
+                final String value = field.getValue();
+				entryContentsView.addExtraField(label, value, new View.OnClickListener() {
+                    @Override
+                    public void onClick(View view) {
+                        timeoutCopyToClipboard(value, getString(R.string.copy_field, label));
+                    }
+                });
+			}
+		}
+
+        // Assign dates
+        entryContentsView.assignCreationDate(mEntry.getCreationTime());
+        entryContentsView.assignModificationDate(mEntry.getLastModificationTime());
+        entryContentsView.assignLastAccessDate(mEntry.getLastAccessTime());
 		Date expires = mEntry.getExpiryTime();
 		if ( mEntry.expires() ) {
-			populateText(R.id.entry_expires, getDateTime(expires));
+			entryContentsView.assignExpiresDate(expires);
 		} else {
-			populateText(R.id.entry_expires, R.string.never);
+            entryContentsView.assignExpiresDate(getString(R.string.never));
 		}
-		populateText(R.id.entry_comment, mEntry.getNotes(true, pm));
-
-	}
-	
-	private void populateText(int viewId, int resId) {
-		TextView tv = (TextView) findViewById(viewId);
-		tv.setText(resId);
-	}
-
-	private void populateText(int viewId, String text) {
-		TextView tv = (TextView) findViewById(viewId);
-		tv.setText(text);
 	}
 
 	@Override
 	protected void onActivityResult(int requestCode, int resultCode, Intent data) {
 		super.onActivityResult(requestCode, resultCode, data);
-		if ( resultCode == KeePass.EXIT_REFRESH || resultCode == KeePass.EXIT_REFRESH_TITLE ) {
-			fillData(true);
-			if ( resultCode == KeePass.EXIT_REFRESH_TITLE ) {
-				Intent ret = new Intent();
-				ret.putExtra(KEY_REFRESH_POS, mPos);
-				setResult(KeePass.EXIT_REFRESH, ret);
+        switch (requestCode) {
+            case EntryEditActivity.ADD_OR_UPDATE_ENTRY_REQUEST_CODE:
+                fillData();
+                break;
         }
 	}
+
+	private void changeShowPasswordIcon(MenuItem togglePassword) {
+		if ( mShowPassword ) {
+			togglePassword.setTitle(R.string.menu_hide_password);
+			togglePassword.setIcon(R.drawable.ic_visibility_off_white_24dp);
+		} else {
+			togglePassword.setTitle(R.string.menu_showpass);
+			togglePassword.setIcon(R.drawable.ic_visibility_white_24dp);
+		}
 	}
 
 	@Override
@@ -317,27 +329,21 @@ public class EntryActivity extends LockCloseHideActivity {
 		MenuInflater inflater = getMenuInflater();
         MenuUtil.donationMenuInflater(inflater, menu);
 		inflater.inflate(R.menu.entry, menu);
-		inflater.inflate(R.menu.lock_database, menu);
+		inflater.inflate(R.menu.database_lock, menu);
 
 		MenuItem togglePassword = menu.findItem(R.id.menu_toggle_pass);
-		if ( mShowPassword ) {
-			togglePassword.setTitle(R.string.menu_hide_password);
-			togglePassword.setIcon(R.drawable.ic_visibility_off_white_24dp);
+		if (!entryContentsView.isPasswordPresent()) {
+		    togglePassword.setVisible(false);
         } else {
-			togglePassword.setTitle(R.string.menu_showpass);
-            togglePassword.setIcon(R.drawable.ic_visibility_white_24dp);
+            changeShowPasswordIcon(togglePassword);
         }
 		
 		MenuItem gotoUrl = menu.findItem(R.id.menu_goto_url);
-		MenuItem copyUser = menu.findItem(R.id.menu_copy_user);
-		MenuItem copyPass = menu.findItem(R.id.menu_copy_pass);
 		
 		// In API >= 11 onCreateOptionsMenu may be called before onCreate completes
 		// so mEntry may not be set
 		if (mEntry == null) {
 			gotoUrl.setVisible(false);
-			copyUser.setVisible(false);
-			copyPass.setVisible(false);
 		}
 		else {
 			String url = mEntry.getUrl();
@@ -345,29 +351,11 @@ public class EntryActivity extends LockCloseHideActivity {
 				// disable button if url is not available
 				gotoUrl.setVisible(false);
 			}
-			if ( mEntry.getUsername().length() == 0 ) {
-				// disable button if username is not available
-				copyUser.setVisible(false);
-			}
-			if ( mEntry.getPassword().length() == 0 ) {
-				// disable button if password is not available
-				copyPass.setVisible(false);
-			}
 		}
 		
 		return true;
 	}
 
-	private void setPasswordStyle() {
-		TextView password = (TextView) findViewById(R.id.entry_password);
-
-		if ( mShowPassword ) {
-			password.setTransformationMethod(null);
-		} else {
-			password.setTransformationMethod(PasswordTransformationMethod.getInstance());
-		}
-	}
-
 	@Override
 	public boolean onOptionsItemSelected(MenuItem item) {
 		switch ( item.getItemId() ) {
@@ -375,16 +363,9 @@ public class EntryActivity extends LockCloseHideActivity {
                 return MenuUtil.onDonationItemSelected(this);
 
             case R.id.menu_toggle_pass:
-                if ( mShowPassword ) {
-                    item.setTitle(R.string.menu_showpass);
-                    item.setIcon(R.drawable.ic_visibility_white_24dp);
-                    mShowPassword = false;
-                } else {
-                    item.setTitle(R.string.menu_hide_password);
-                    item.setIcon(R.drawable.ic_visibility_off_white_24dp);
-                    mShowPassword = true;
-                }
-                setPasswordStyle();
+                mShowPassword = !mShowPassword;
+                changeShowPasswordIcon(item);
+                entryContentsView.setHiddenPasswordStyle(!mShowPassword);
                 return true;
 			
             case R.id.menu_goto_url:
@@ -403,17 +384,9 @@ public class EntryActivity extends LockCloseHideActivity {
                 }
                 return true;
 			
-            case R.id.menu_copy_user:
-                timeoutCopyToClipboard(mEntry.getUsername(true, App.getDB().pm));
-                return true;
-			
-            case R.id.menu_copy_pass:
-                timeoutCopyToClipboard(mEntry.getPassword(true, App.getDB().pm));
-                return true;
-			
             case R.id.menu_lock:
                 App.setShutdown();
-                setResult(KeePass.EXIT_LOCK);
+                setResult(PasswordActivity.RESULT_EXIT_LOCK);
                 finish();
                 return true;
 
@@ -425,6 +398,13 @@ public class EntryActivity extends LockCloseHideActivity {
 	}
 
 	private void timeoutCopyToClipboard(String text) {
+        timeoutCopyToClipboard(text, "");
+    }
+
+	private void timeoutCopyToClipboard(String text, String toastString) {
+        if (!toastString.isEmpty())
+            Toast.makeText(EntryActivity.this, toastString, Toast.LENGTH_LONG).show();
+
 		try {
 			Util.copyToClipboard(this, text);
 		} catch (SamsungClipboardException e) {
@@ -442,6 +422,17 @@ public class EntryActivity extends LockCloseHideActivity {
 		}
 	}
 
+    @Override
+    public void finish() {
+        // Transit data in previous Activity after an update
+		/*
+		TODO Slowdown when add entry as result
+        Intent intent = new Intent();
+        intent.putExtra(EntryEditActivity.ADD_OR_UPDATE_ENTRY_KEY, mEntry);
+        setResult(EntryEditActivity.UPDATE_ENTRY_RESULT_CODE, intent);
+        */
+        super.finish();
+    }
 
     // Setup to allow the toast to happen in the foreground
 	final Handler uiThreadCallback = new Handler();

app/src/main/java/com/keepassdroid/activities/EntryEditActivity.java

@@ -0,0 +1,413 @@
+/*
+ * Copyright 2017 Brian Pellin, Jeremy Jamet / Kunzisoft.
+ *     
+ * This file is part of KeePass DX.
+ *
+ *  KeePass DX is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  KeePass DX is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with KeePass DX.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+package com.keepassdroid.activities;
+
+import android.app.Activity;
+import android.content.Intent;
+import android.os.Bundle;
+import android.os.Handler;
+import android.support.v7.widget.Toolbar;
+import android.view.Menu;
+import android.view.MenuInflater;
+import android.view.MenuItem;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.view.ViewGroup;
+import android.widget.ImageButton;
+import android.widget.LinearLayout;
+import android.widget.ScrollView;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import com.keepassdroid.app.App;
+import com.keepassdroid.database.Database;
+import com.keepassdroid.database.PwDatabase;
+import com.keepassdroid.database.PwDatabaseV4;
+import com.keepassdroid.database.PwEntry;
+import com.keepassdroid.database.PwEntryV4;
+import com.keepassdroid.database.PwGroup;
+import com.keepassdroid.database.PwGroupId;
+import com.keepassdroid.database.PwIconStandard;
+import com.keepassdroid.database.edit.AddEntry;
+import com.keepassdroid.database.edit.OnFinish;
+import com.keepassdroid.database.edit.RunnableOnFinish;
+import com.keepassdroid.database.edit.UpdateEntry;
+import com.keepassdroid.database.security.ProtectedString;
+import com.keepassdroid.fragments.GeneratePasswordDialogFragment;
+import com.keepassdroid.fragments.IconPickerDialogFragment;
+import com.keepassdroid.icons.Icons;
+import com.keepassdroid.settings.PreferencesUtil;
+import com.keepassdroid.tasks.ProgressTask;
+import com.keepassdroid.utils.MenuUtil;
+import com.keepassdroid.utils.Types;
+import com.keepassdroid.utils.Util;
+import com.keepassdroid.view.EntryEditNewField;
+import com.kunzisoft.keepass.R;
+
+import java.util.ArrayList;
+import java.util.Calendar;
+import java.util.Date;
+import java.util.Map;
+import java.util.UUID;
+
+public class EntryEditActivity extends LockingHideActivity
+		implements IconPickerDialogFragment.IconPickerListener,
+        GeneratePasswordDialogFragment.GeneratePasswordListener {
+
+    // Keys for current Activity
+	public static final String KEY_ENTRY = "entry";
+	public static final String KEY_PARENT = "parent";
+
+	// Keys for callback
+	public static final int ADD_ENTRY_RESULT_CODE = 31;
+	public static final int UPDATE_ENTRY_RESULT_CODE = 32;
+	public static final int ADD_OR_UPDATE_ENTRY_REQUEST_CODE = 7129;
+	public static final String ADD_OR_UPDATE_ENTRY_KEY = "ADD_OR_UPDATE_ENTRY_KEY";
+
+	protected PwEntry mEntry;
+	protected PwEntry mCallbackNewEntry;
+	protected boolean mIsNew;
+	protected int mSelectedIconID = -1;
+
+    // Views
+    private ScrollView scrollView;
+    private TextView entryTitleView;
+    private TextView entryUserNameView;
+    private TextView entryUrlView;
+    private TextView entryPasswordView;
+    private TextView entryConfirmationPasswordView;
+    private TextView entryCommentView;
+    private ViewGroup entryExtraFieldsContainer;
+
+	/**
+	 * launch EntryEditActivity to update an existing entry
+	 * @param act from activity
+	 * @param pw Entry to update
+	 */
+	public static void Launch(Activity act, PwEntry pw) {
+		Intent intent = new Intent(act, EntryEditActivity.class);
+        intent.putExtra(KEY_ENTRY, Types.UUIDtoBytes(pw.getUUID()));
+		act.startActivityForResult(intent, ADD_OR_UPDATE_ENTRY_REQUEST_CODE);
+	}
+
+	/**
+	 * launch EntryEditActivity to add a new entry
+	 * @param act from activity
+	 * @param pwGroup Group who will contains new entry
+	 */
+	public static void Launch(Activity act, PwGroup pwGroup) {
+		Intent intent = new Intent(act, EntryEditActivity.class);
+        intent.putExtra(KEY_PARENT, pwGroup.getId());
+        act.startActivityForResult(intent, ADD_OR_UPDATE_ENTRY_REQUEST_CODE);
+	}
+	
+	@Override
+	protected void onCreate(Bundle savedInstanceState) {
+		super.onCreate(savedInstanceState);
+		setContentView(R.layout.entry_edit);
+
+        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
+        toolbar.setTitle(getString(R.string.app_name));
+        setSupportActionBar(toolbar);
+        assert getSupportActionBar() != null;
+        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
+        getSupportActionBar().setDisplayShowHomeEnabled(true);
+
+        scrollView = (ScrollView) findViewById(R.id.entry_scroll);
+        scrollView.setScrollBarStyle(View.SCROLLBARS_INSIDE_INSET);
+
+        entryTitleView = (TextView) findViewById(R.id.entry_title);
+        entryUserNameView = (TextView) findViewById(R.id.entry_user_name);
+        entryUrlView = (TextView) findViewById(R.id.entry_url);
+        entryPasswordView = (TextView) findViewById(R.id.entry_password);
+        entryConfirmationPasswordView = (TextView) findViewById(R.id.entry_confpassword);
+        entryCommentView = (TextView) findViewById(R.id.entry_comment);
+        entryExtraFieldsContainer = (ViewGroup) findViewById(R.id.advanced_container);
+		
+		// Likely the app has been killed exit the activity
+		Database db = App.getDB();
+		if ( ! db.Loaded() ) {
+			finish();
+			return;
+		}
+
+		Intent intent = getIntent();
+		byte[] uuidBytes = intent.getByteArrayExtra(KEY_ENTRY);
+
+		PwDatabase pm = db.pm;
+		if ( uuidBytes == null ) {
+            PwGroupId parentId = (PwGroupId) intent.getSerializableExtra(KEY_PARENT);
+			PwGroup parent = pm.groups.get(parentId);
+			mEntry = PwEntry.getInstance(parent);
+			mIsNew = true;
+		} else {
+			UUID uuid = Types.bytestoUUID(uuidBytes);
+			mEntry = pm.entries.get(uuid);
+			mIsNew = false;
+			fillData();
+		}
+
+		View iconButton = findViewById(R.id.icon_button);
+		iconButton.setOnClickListener(new View.OnClickListener() {
+
+			public void onClick(View v) {
+				IconPickerDialogFragment.launch(EntryEditActivity.this);
+			}
+		});
+
+		// Generate password button
+		View generatePassword = findViewById(R.id.generate_button);
+		generatePassword.setOnClickListener(new OnClickListener() {
+			
+			public void onClick(View v) {
+				GeneratePasswordDialogFragment generatePasswordDialogFragment = new GeneratePasswordDialogFragment();
+				generatePasswordDialogFragment.show(getSupportFragmentManager(), "PasswordGeneratorFragment");
+			}
+		});
+		
+		// Save button
+		View save = findViewById(R.id.entry_save);
+		save.setOnClickListener(new View.OnClickListener() {
+
+			public void onClick(View v) {
+				if (!validateBeforeSaving()) {
+					return;
+				}
+                mCallbackNewEntry = populateNewEntry();
+
+				OnFinish onFinish = new AfterSave();
+                EntryEditActivity act = EntryEditActivity.this;
+                RunnableOnFinish task;
+				if ( mIsNew ) {
+					task = new AddEntry(act, App.getDB(), mCallbackNewEntry, onFinish);
+				} else {
+					task = new UpdateEntry(act, App.getDB(), mEntry, mCallbackNewEntry, onFinish);
+				}
+				ProgressTask pt = new ProgressTask(act, task, R.string.saving_database);
+				pt.run();
+			}
+			
+		});
+
+
+		if (mEntry.allowExtraFields()) {
+            View add = findViewById(R.id.add_new_field);
+            add.setVisibility(View.VISIBLE);
+            add.setOnClickListener(new View.OnClickListener() {
+
+                @Override
+                public void onClick(View v) {
+                    EntryEditNewField ees = new EntryEditNewField(EntryEditActivity.this);
+                    ees.setData("", new ProtectedString(false, ""));
+                    entryExtraFieldsContainer.addView(ees);
+
+                    // Scroll bottom
+                    scrollView.post(new Runnable() {
+                        @Override
+                        public void run() {
+                            scrollView.fullScroll(ScrollView.FOCUS_DOWN);
+                        }
+                    });
+                }
+            });
+        }
+	}
+	
+	protected boolean validateBeforeSaving() {
+		// Require title
+		String title = entryTitleView.getText().toString();
+		if ( title.length() == 0 ) {
+			Toast.makeText(this, R.string.error_title_required, Toast.LENGTH_LONG).show();
+			return false;
+		}
+		
+		// Validate password
+		String pass = entryPasswordView.getText().toString();
+		String conf = entryConfirmationPasswordView.getText().toString();
+		if ( ! pass.equals(conf) ) {
+			Toast.makeText(this, R.string.error_pass_match, Toast.LENGTH_LONG).show();
+			return false;
+		}
+
+		// Validate extra fields
+        if (mEntry.allowExtraFields()) {
+            for (int i = 0; i < entryExtraFieldsContainer.getChildCount(); i++) {
+                EntryEditNewField entryEditNewField = (EntryEditNewField) entryExtraFieldsContainer.getChildAt(i);
+                String key = entryEditNewField.getLabel();
+                if (key == null || key.length() == 0) {
+                    Toast.makeText(this, R.string.error_string_key, Toast.LENGTH_LONG).show();
+                    return false;
+                }
+            }
+        }
+
+        return true;
+	}
+	
+	protected PwEntry populateNewEntry() {
+	    if (mEntry instanceof PwEntryV4) {
+	        // TODO backup
+            PwEntryV4 newEntry = (PwEntryV4) mEntry.clone(true);
+            newEntry.history = (ArrayList<PwEntryV4>) newEntry.history.clone();
+            newEntry.createBackup((PwDatabaseV4) App.getDB().pm);
+        }
+
+        PwEntry newEntry = mEntry.clone(true);
+
+        Date now = Calendar.getInstance().getTime();
+        newEntry.setLastAccessTime(now);
+        newEntry.setLastModificationTime(now);
+
+        PwDatabase db = App.getDB().pm;
+        newEntry.setTitle(entryTitleView.getText().toString(), db);
+        if(mSelectedIconID != -1)
+            // or TODO icon factory newEntry.setIcon(App.getDB().pm.iconFactory.getIcon(mSelectedIconID));
+            newEntry.setIcon(new PwIconStandard(mSelectedIconID));
+        else {
+            if (mIsNew) {
+                newEntry.setIcon(App.getDB().pm.iconFactory.getIcon(0));
+            }
+            else {
+                // Keep previous icon, if no new one was selected
+                newEntry.setIcon(mEntry.icon);
+            }
+        }
+        newEntry.setUrl(entryUrlView.getText().toString(), db);
+        newEntry.setUsername(entryUserNameView.getText().toString(), db);
+        newEntry.setNotes(entryCommentView.getText().toString(), db);
+        newEntry.setPassword(entryPasswordView.getText().toString(), db);
+
+        if (newEntry.allowExtraFields()) {
+            // Delete all new standard strings
+            newEntry.removeExtraFields();
+            // Add extra fields from views
+            for (int i = 0; i < entryExtraFieldsContainer.getChildCount(); i++) {
+                EntryEditNewField view = (EntryEditNewField) entryExtraFieldsContainer.getChildAt(i);
+                String key = view.getLabel();
+                String value = view.getValue();
+                boolean protect = view.isProtected();
+                newEntry.addField(key, new ProtectedString(protect, value));
+            }
+        }
+
+        return newEntry;
+	}
+
+
+	@Override
+	public boolean onCreateOptionsMenu(Menu menu) {
+		super.onCreateOptionsMenu(menu);
+		
+		MenuInflater inflater = getMenuInflater();
+		MenuUtil.donationMenuInflater(inflater, menu);
+		
+		return true;
+	}
+	
+	public boolean onOptionsItemSelected(MenuItem item) {
+		switch ( item.getItemId() ) {
+			case R.id.menu_donate:
+				return MenuUtil.onDonationItemSelected(this);
+
+			case android.R.id.home:
+				finish();
+		}
+		
+		return super.onOptionsItemSelected(item);
+	}
+
+	protected void fillData() {
+		ImageButton currIconButton = (ImageButton) findViewById(R.id.icon_button);
+		App.getDB().drawFactory.assignDrawableTo(currIconButton, getResources(), mEntry.getIcon());
+
+		boolean visibilityFont = PreferencesUtil.fieldFontIsInVisibility(this);
+
+        entryTitleView.setText(mEntry.getTitle());
+        entryUserNameView.setText(mEntry.getUsername());
+        entryUrlView.setText(mEntry.getUrl());
+        String password = mEntry.getPassword();
+        entryPasswordView.setText(password);
+        entryConfirmationPasswordView.setText(password);
+        entryCommentView.setText(mEntry.getNotes());
+        Util.applyFontVisibilityToTextView(visibilityFont, entryCommentView);
+
+		if (mEntry.allowExtraFields()) {
+            LinearLayout container = (LinearLayout) findViewById(R.id.advanced_container);
+            for (Map.Entry<String, ProtectedString> pair : mEntry.getExtraProtectedFields().entrySet()) {
+                EntryEditNewField entryEditNewField = new EntryEditNewField(EntryEditActivity.this);
+                entryEditNewField.setData(pair.getKey(), pair.getValue());
+                entryEditNewField.setFontVisibility(visibilityFont);
+                container.addView(entryEditNewField);
+            }
+        }
+	}
+
+    @Override
+    public void iconPicked(Bundle bundle) {
+        mSelectedIconID = bundle.getInt(IconPickerDialogFragment.KEY_ICON_ID);
+        ImageButton currIconButton = (ImageButton) findViewById(R.id.icon_button);
+        currIconButton.setImageResource(Icons.iconToResId(mSelectedIconID));
+    }
+
+    @Override
+    public void acceptPassword(Bundle bundle) {
+        String generatedPassword = bundle.getString(GeneratePasswordDialogFragment.KEY_PASSWORD_ID);
+        entryPasswordView.setText(generatedPassword);
+        entryConfirmationPasswordView.setText(generatedPassword);
+    }
+
+    @Override
+    public void cancelPassword(Bundle bundle) {
+        // Do nothing here
+    }
+
+	@Override
+	public void finish() {
+	    // Assign entry callback as a result in all case
+		if (mCallbackNewEntry != null) {
+			Intent intentEntry = new Intent();
+			if (mIsNew) {
+				intentEntry.putExtra(ADD_OR_UPDATE_ENTRY_KEY, mCallbackNewEntry);
+				setResult(ADD_ENTRY_RESULT_CODE, intentEntry);
+			} else {
+				intentEntry.putExtra(ADD_OR_UPDATE_ENTRY_KEY, mCallbackNewEntry);
+				setResult(UPDATE_ENTRY_RESULT_CODE, intentEntry);
+			}
+		}
+		super.finish();
+	}
+
+	private final class AfterSave extends OnFinish {
+
+		AfterSave() {
+			super(new Handler());
+		}
+
+		@Override
+		public void run() {
+			if ( mSuccess ) {
+				finish();
+			} else {
+				displayMessage(EntryEditActivity.this);
+			}
+		}
+	}
+
+}

app/src/main/java/com/keepassdroid/activities/GroupActivity.java

@@ -0,0 +1,426 @@
+/*
+ * Copyright 2017 Brian Pellin, Jeremy Jamet / Kunzisoft.
+ *     
+ * This file is part of KeePass DX.
+ *
+ *  KeePass DX is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  KeePass DX is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with KeePass DX.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+package com.keepassdroid.activities;
+
+import android.app.Activity;
+import android.app.Dialog;
+import android.app.SearchManager;
+import android.app.assist.AssistStructure;
+import android.content.ComponentName;
+import android.content.Context;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.os.Build;
+import android.os.Bundle;
+import android.os.Handler;
+import android.preference.PreferenceManager;
+import android.support.annotation.RequiresApi;
+import android.support.v7.widget.RecyclerView;
+import android.support.v7.widget.SearchView;
+import android.support.v7.widget.Toolbar;
+import android.util.Log;
+import android.view.Menu;
+import android.view.MenuInflater;
+import android.view.MenuItem;
+import android.view.View;
+import android.widget.ImageView;
+
+import com.keepassdroid.adapters.NodeAdapter;
+import com.keepassdroid.app.App;
+import com.keepassdroid.autofill.AutofillHelper;
+import com.keepassdroid.database.Database;
+import com.keepassdroid.database.PwEntry;
+import com.keepassdroid.database.PwGroup;
+import com.keepassdroid.database.PwGroupId;
+import com.keepassdroid.database.PwNode;
+import com.keepassdroid.database.SortNodeEnum;
+import com.keepassdroid.database.edit.AddGroup;
+import com.keepassdroid.database.edit.DeleteEntry;
+import com.keepassdroid.database.edit.DeleteGroup;
+import com.keepassdroid.dialog.ReadOnlyDialog;
+import com.keepassdroid.fragments.AssignMasterKeyDialogFragment;
+import com.keepassdroid.fragments.GroupEditDialogFragment;
+import com.keepassdroid.fragments.IconPickerDialogFragment;
+import com.keepassdroid.password.PasswordActivity;
+import com.keepassdroid.search.SearchResultsActivity;
+import com.keepassdroid.tasks.ProgressTask;
+import com.keepassdroid.view.ListNodesWithAddButtonView;
+import com.kunzisoft.keepass.R;
+
+public class GroupActivity extends ListNodesActivity
+        implements GroupEditDialogFragment.EditGroupListener, IconPickerDialogFragment.IconPickerListener {
+
+	protected boolean addGroupEnabled = false;
+	protected boolean addEntryEnabled = false;
+	protected boolean isRoot = false;
+	protected boolean readOnly = false;
+	protected EditGroupDialogAction editGroupDialogAction = EditGroupDialogAction.NONE;
+	private ListNodesWithAddButtonView rootView;
+
+    private AutofillHelper autofillHelper;
+
+    private enum EditGroupDialogAction {
+	    CREATION, UPDATE, NONE
+    }
+
+	private static final String TAG = "Group Activity:";
+	
+	public static void launch(Activity act) {
+		launch(act, (PwGroup) null);
+	}
+
+    public static void launch(Activity act, PwGroup group) {
+        Intent intent = new Intent(act, GroupActivity.class);
+        if ( group != null ) {
+            intent.putExtra(KEY_ENTRY, group.getId());
+        }
+        act.startActivityForResult(intent, 0);
+    }
+
+    @RequiresApi(api = Build.VERSION_CODES.O)
+    public static void launch(Activity act, AssistStructure assistStructure) {
+        launch(act, null, assistStructure);
+    }
+
+    @RequiresApi(api = Build.VERSION_CODES.O)
+    public static void launch(Activity act, PwGroup group, AssistStructure assistStructure) {
+        if ( assistStructure != null ) {
+            Intent intent = new Intent(act, GroupActivity.class);
+            if ( group != null ) {
+                intent.putExtra(KEY_ENTRY, group.getId());
+            }
+            AutofillHelper.addAssistStructureExtraInIntent(intent, assistStructure);
+            act.startActivityForResult(intent, AutofillHelper.AUTOFILL_RESPONSE_REQUEST_CODE);
+        } else {
+            launch(act, group);
+        }
+	}
+	
+	@Override
+	protected void onCreate(Bundle savedInstanceState) {
+		super.onCreate(savedInstanceState);
+		
+		Log.w(TAG, "Retrieved tree");
+		if ( mCurrentGroup == null ) {
+			Log.w(TAG, "Group was null");
+			return;
+		}
+
+		// Construct main view
+        rootView = new ListNodesWithAddButtonView(this);
+        rootView.enableAddGroup(addGroupEnabled);
+        rootView.enableAddEntry(addEntryEnabled);
+		setContentView(rootView);
+
+        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
+        toolbar.setTitle("");
+        setSupportActionBar(toolbar);
+
+        if ( mCurrentGroup.getParent() != null )
+            toolbar.setNavigationIcon(R.drawable.ic_arrow_up_white_24dp);
+
+        rootView.setAddGroupClickListener(new View.OnClickListener() {
+            public void onClick(View v) {
+                editGroupDialogAction = EditGroupDialogAction.CREATION;
+                GroupEditDialogFragment groupEditDialogFragment = new GroupEditDialogFragment();
+                groupEditDialogFragment.show(getSupportFragmentManager(),
+                        GroupEditDialogFragment.TAG_CREATE_GROUP);
+            }
+        });
+        rootView.setAddEntryClickListener(new View.OnClickListener() {
+            public void onClick(View v) {
+                EntryEditActivity.Launch(GroupActivity.this, mCurrentGroup);
+            }
+        });
+		
+		setGroupTitle();
+		setGroupIcon();
+
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            autofillHelper = new AutofillHelper();
+            autofillHelper.retrieveAssistStructure(getIntent());
+        }
+
+        Log.w(TAG, "Finished creating tree");
+
+        if (isRoot) {
+            showWarnings();
+        }
+	}
+
+	protected PwGroup initCurrentGroup() {
+	    PwGroup currentGroup;
+        Database db = App.getDB();
+        readOnly = db.readOnly;
+        PwGroup root = db.pm.rootGroup;
+
+        Log.w(TAG, "Creating tree view");
+        PwGroupId pwGroupId = (PwGroupId) getIntent().getSerializableExtra(KEY_ENTRY);
+        if ( pwGroupId == null ) {
+            currentGroup = root;
+        } else {
+            currentGroup = db.pm.groups.get(pwGroupId);
+        }
+
+        addGroupEnabled = !readOnly;
+        addEntryEnabled = !readOnly;
+
+        isRoot = (currentGroup == root);
+        if ( !currentGroup.allowAddEntryIfIsRoot() )
+            addEntryEnabled = !isRoot && addEntryEnabled;
+
+        return currentGroup;
+    }
+
+    @Override
+    protected RecyclerView defineNodeList() {
+        return (RecyclerView) findViewById(R.id.nodes_list);
+    }
+
+    @Override
+    public void onNodeClick(PwNode node) {
+        // Add event when we have Autofill
+        AssistStructure assistStructure = null;
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            assistStructure = autofillHelper.getAssistStructure();
+            if (assistStructure != null) {
+                mAdapter.registerANodeToUpdate(node);
+                switch (node.getType()) {
+                    case GROUP:
+                        GroupActivity.launch(this, (PwGroup) node, assistStructure);
+                        break;
+                    case ENTRY:
+                        // Build response with the entry selected
+                        autofillHelper.buildResponseWhenEntrySelected(this, (PwEntry) node);
+                        finish();
+                        break;
+                }
+            }
+        }
+        if ( assistStructure == null ){
+            super.onNodeClick(node);
+        }
+    }
+
+    @Override
+    protected void addOptionsToAdapter(NodeAdapter nodeAdapter) {
+	    super.addOptionsToAdapter(nodeAdapter);
+
+        nodeAdapter.setActivateContextMenu(true);
+        nodeAdapter.setNodeMenuListener(new NodeAdapter.NodeMenuListener() {
+            @Override
+            public boolean onOpenMenuClick(PwNode node) {
+                mAdapter.registerANodeToUpdate(node);
+                switch (node.getType()) {
+                    case GROUP:
+                        GroupActivity.launch(GroupActivity.this, (PwGroup) node);
+                        break;
+                    case ENTRY:
+                        EntryActivity.launch(GroupActivity.this, (PwEntry) node);
+                        break;
+                }
+                return true;
+            }
+
+            @Override
+            public boolean onEditMenuClick(PwNode node) {
+                mAdapter.registerANodeToUpdate(node);
+                switch (node.getType()) {
+                    case GROUP:
+                        editGroupDialogAction = EditGroupDialogAction.UPDATE;
+                        GroupEditDialogFragment groupEditDialogFragment =
+                                GroupEditDialogFragment.build(node);
+                        groupEditDialogFragment.show(getSupportFragmentManager(),
+                                GroupEditDialogFragment.TAG_CREATE_GROUP);
+                        break;
+                    case ENTRY:
+                        EntryEditActivity.Launch(GroupActivity.this, (PwEntry) node);
+                        break;
+                }
+                return true;
+            }
+
+            @Override
+            public boolean onDeleteMenuClick(PwNode node) {
+                switch (node.getType()) {
+                    case GROUP:
+                        deleteGroup((PwGroup) node);
+                        break;
+                    case ENTRY:
+                        deleteEntry((PwEntry) node);
+                        break;
+                }
+                return true;
+            }
+        });
+    }
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+        // Show button on resume
+        rootView.showButton();
+    }
+
+    @Override
+    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
+        super.onActivityResult(requestCode, resultCode, data);
+
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            AutofillHelper.onActivityResultSetResultAndFinish(this, requestCode, resultCode, data);
+        }
+    }
+
+    @Override
+    public void onSortSelected(SortNodeEnum sortNodeEnum, boolean ascending, boolean groupsBefore, boolean recycleBinBottom) {
+        super.onSortSelected(sortNodeEnum, ascending, groupsBefore, recycleBinBottom);
+
+        // Show button if hide after sort
+        rootView.showButton();
+    }
+
+    protected void setGroupIcon() {
+		if (mCurrentGroup != null) {
+			ImageView iv = (ImageView) findViewById(R.id.icon);
+			App.getDB().drawFactory.assignDrawableTo(iv, getResources(), mCurrentGroup.getIcon());
+		}
+	}
+
+    private void deleteEntry(PwEntry entry) {
+        Handler handler = new Handler();
+        DeleteEntry task = new DeleteEntry(this, App.getDB(), entry,
+                new AfterDeleteNode(handler, entry));
+        ProgressTask pt = new ProgressTask(this, task, R.string.saving_database);
+        pt.run();
+    }
+
+    private void deleteGroup(PwGroup group) {
+		//TODO Verify trash recycle bin
+        Handler handler = new Handler();
+        DeleteGroup task = new DeleteGroup(this, App.getDB(), group,
+				new AfterDeleteNode(handler, group));
+        ProgressTask pt = new ProgressTask(this, task, R.string.saving_database);
+        pt.run();
+    }
+
+    @Override
+    public boolean onCreateOptionsMenu(Menu menu) {
+        super.onCreateOptionsMenu(menu);
+
+        MenuInflater inflater = getMenuInflater();
+        inflater.inflate(R.menu.search, menu);
+        inflater.inflate(R.menu.database_master_key, menu);
+        inflater.inflate(R.menu.database_lock, menu);
+
+        // Get the SearchView and set the searchable configuration
+        SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
+        assert searchManager != null;
+
+        MenuItem searchItem = menu.findItem(R.id.menu_search);
+        SearchView searchView = null;
+        if (searchItem != null) {
+            searchView = (SearchView) searchItem.getActionView();
+        }
+        if (searchView != null) {
+            searchView.setSearchableInfo(searchManager.getSearchableInfo(new ComponentName(this, SearchResultsActivity.class)));
+            searchView.setIconifiedByDefault(false); // Do not iconify the widget; expand it by default
+        }
+
+        return true;
+    }
+
+	@Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        switch (item.getItemId()) {
+
+            case android.R.id.home:
+                onBackPressed();
+                return true;
+
+            case R.id.menu_search:
+                onSearchRequested();
+                return true;
+
+            case R.id.menu_lock:
+                App.setShutdown();
+                setResult(PasswordActivity.RESULT_EXIT_LOCK);
+                finish();
+                return true;
+
+            case R.id.menu_change_master_key:
+                setPassword();
+                return true;
+        }
+        return super.onOptionsItemSelected(item);
+    }
+
+    private void setPassword() {
+        AssignMasterKeyDialogFragment dialog = new AssignMasterKeyDialogFragment();
+        dialog.show(getSupportFragmentManager(), "passwordDialog");
+    }
+
+    @Override
+    public void approveEditGroup(Bundle bundle) {
+        String GroupName = bundle.getString(GroupEditDialogFragment.KEY_NAME);
+        int GroupIconID = bundle.getInt(GroupEditDialogFragment.KEY_ICON_ID);
+        switch (editGroupDialogAction) {
+            case CREATION:
+                // If edit group creation
+                Handler handler = new Handler();
+                AddGroup task = new AddGroup(this, App.getDB(), GroupName, GroupIconID, mCurrentGroup,
+                        new AfterAddNode(handler), false);
+                ProgressTask pt = new ProgressTask(this, task, R.string.saving_database);
+                pt.run();
+                break;
+            case UPDATE:
+                // If edit group update
+                // TODO UpdateGroup
+                break;
+        }
+        editGroupDialogAction = EditGroupDialogAction.NONE;
+    }
+
+    @Override
+    public void cancelEditGroup(Bundle bundle) {
+        // Do nothing here
+    }
+
+    @Override
+    // For icon in create tree dialog
+    public void iconPicked(Bundle bundle) {
+        GroupEditDialogFragment groupEditDialogFragment =
+                (GroupEditDialogFragment) getSupportFragmentManager()
+                        .findFragmentByTag(GroupEditDialogFragment.TAG_CREATE_GROUP);
+        if (groupEditDialogFragment != null) {
+            groupEditDialogFragment.iconPicked(bundle);
+        }
+    }
+	
+	protected void showWarnings() {
+		if (App.getDB().readOnly) {
+		    SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
+		    
+		    if (prefs.getBoolean(getString(R.string.show_read_only_warning), true)) {
+			    Dialog dialog = new ReadOnlyDialog(this);
+			    dialog.show();
+		    }
+		}
+	}
+}

app/src/main/java/com/keepassdroid/activities/ListNodesActivity.java

@@ -0,0 +1,314 @@
+/*
+ * Copyright 2017 Brian Pellin, Jeremy Jamet / Kunzisoft.
+ *     
+ * This file is part of KeePass DX.
+ *
+ *  KeePass DX is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  KeePass DX is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with KeePass DX.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+package com.keepassdroid.activities;
+
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.content.SharedPreferences.Editor;
+import android.net.Uri;
+import android.os.Build;
+import android.os.Bundle;
+import android.os.Handler;
+import android.preference.PreferenceManager;
+import android.support.v7.widget.LinearLayoutManager;
+import android.support.v7.widget.RecyclerView;
+import android.util.Log;
+import android.view.Menu;
+import android.view.MenuInflater;
+import android.view.MenuItem;
+import android.view.View;
+import android.widget.TextView;
+
+import com.keepassdroid.adapters.NodeAdapter;
+import com.keepassdroid.app.App;
+import com.keepassdroid.compat.ActivityCompat;
+import com.keepassdroid.compat.EditorCompat;
+import com.keepassdroid.database.PwDatabase;
+import com.keepassdroid.database.PwEntry;
+import com.keepassdroid.database.PwGroup;
+import com.keepassdroid.database.PwNode;
+import com.keepassdroid.database.edit.AfterAddNodeOnFinish;
+import com.keepassdroid.database.edit.OnFinish;
+import com.keepassdroid.fragments.AssignMasterKeyDialogFragment;
+import com.keepassdroid.fragments.SortDialogFragment;
+import com.keepassdroid.settings.PreferencesUtil;
+import com.keepassdroid.tasks.UIToastTask;
+import com.keepassdroid.utils.MenuUtil;
+import com.keepassdroid.database.SortNodeEnum;
+import com.keepassdroid.view.AssignPasswordHelper;
+import com.kunzisoft.keepass.R;
+
+public abstract class ListNodesActivity extends LockingActivity
+		implements AssignMasterKeyDialogFragment.AssignPasswordDialogListener,
+		NodeAdapter.OnNodeClickCallback,
+        SortDialogFragment.SortSelectionListener {
+
+    public static final String KEY_ENTRY = "entry";
+
+    protected PwGroup mCurrentGroup;
+	protected NodeAdapter mAdapter;
+	
+	private SharedPreferences prefs;
+
+	@Override
+	protected void onCreate(Bundle savedInstanceState) {
+		super.onCreate(savedInstanceState);
+
+        if ( isFinishing() ) {
+            return;
+        }
+		
+		// Likely the app has been killed exit the activity 
+		if ( ! App.getDB().Loaded() ) {
+			finish();
+			return;
+		}
+		
+		prefs = PreferenceManager.getDefaultSharedPreferences(this);
+
+		ActivityCompat.invalidateOptionsMenu(this);
+
+		setContentView(R.layout.list_nodes);
+
+        mCurrentGroup = initCurrentGroup();
+
+        mAdapter = new NodeAdapter(this);
+        addOptionsToAdapter(mAdapter);
+	}
+
+    protected abstract PwGroup initCurrentGroup();
+
+    protected abstract RecyclerView defineNodeList();
+
+    protected void addOptionsToAdapter(NodeAdapter nodeAdapter) {
+        mAdapter.setOnNodeClickListener(this);
+    }
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+        // Add elements to the list
+        mAdapter.rebuildList(mCurrentGroup);
+        assignListToNodeAdapter(defineNodeList());
+    }
+	
+	protected void setGroupTitle() {
+		if ( mCurrentGroup != null ) {
+			String name = mCurrentGroup.getName();
+            TextView tv = (TextView) findViewById(R.id.group_name);
+			if ( name != null && name.length() > 0 ) {
+				if ( tv != null ) {
+					tv.setText(name);
+				}
+			} else {
+				if ( tv != null ) {
+					tv.setText(getText(R.string.root));
+				}
+			}
+		}
+	}
+
+	protected void assignListToNodeAdapter(RecyclerView recyclerView) {
+        recyclerView.setScrollBarStyle(View.SCROLLBARS_INSIDE_INSET);
+        // TODO mList.setTextFilterEnabled(true);
+        recyclerView.setLayoutManager(new LinearLayoutManager(this));
+        recyclerView.setAdapter(mAdapter);
+	}
+
+    @Override
+    public void onNodeClick(PwNode node) {
+		mAdapter.registerANodeToUpdate(node);
+        switch (node.getType()) {
+            case GROUP:
+                GroupActivity.launch(this, (PwGroup) node);
+                break;
+            case ENTRY:
+                EntryActivity.launch(this, (PwEntry) node);
+                break;
+        }
+    }
+
+    @Override
+	public boolean onCreateOptionsMenu(Menu menu) {
+		super.onCreateOptionsMenu(menu);
+		
+		MenuInflater inflater = getMenuInflater();
+		MenuUtil.donationMenuInflater(inflater, menu);
+		inflater.inflate(R.menu.tree, menu);
+		inflater.inflate(R.menu.default_menu, menu);
+
+		return true;
+	}
+
+    @Override
+    public void onSortSelected(SortNodeEnum sortNodeEnum, boolean ascending, boolean groupsBefore, boolean recycleBinBottom) {
+        // Toggle setting
+        Editor editor = prefs.edit();
+        editor.putString(getString(R.string.sort_node_key), sortNodeEnum.name());
+        editor.putBoolean(getString(R.string.sort_ascending_key), ascending);
+        editor.putBoolean(getString(R.string.sort_group_before_key), groupsBefore);
+        editor.putBoolean(getString(R.string.sort_recycle_bin_bottom_key), recycleBinBottom);
+        EditorCompat.apply(editor);
+
+        // Tell the adapter to refresh it's list
+        mAdapter.notifyChangeSort(sortNodeEnum, ascending, groupsBefore);
+        mAdapter.rebuildList(mCurrentGroup);
+    }
+
+	@Override
+	public boolean onOptionsItemSelected(MenuItem item) {
+		switch ( item.getItemId() ) {
+
+            case R.id.menu_sort:
+                SortDialogFragment sortDialogFragment;
+
+                PwDatabase database = App.getDB().pm;
+                /*
+                // TODO Recycle bin bottom
+                if (database.isRecycleBinAvailable() && database.isRecycleBinEnable()) {
+                    sortDialogFragment =
+                            SortDialogFragment.getInstance(
+                                    PrefsUtil.getListSort(this),
+                                    PrefsUtil.getAscendingSort(this),
+                                    PrefsUtil.getGroupsBeforeSort(this),
+                                    PrefsUtil.getRecycleBinBottomSort(this));
+                } else {
+                */
+                    sortDialogFragment =
+                            SortDialogFragment.getInstance(
+                                    PreferencesUtil.getListSort(this),
+                                    PreferencesUtil.getAscendingSort(this),
+                                    PreferencesUtil.getGroupsBeforeSort(this));
+                //}
+
+                sortDialogFragment.show(getSupportFragmentManager(), "sortDialog");
+                return true;
+
+            default:
+                MenuUtil.onDefaultMenuOptionsItemSelected(this, item);
+                return super.onOptionsItemSelected(item);
+		}
+	}
+
+    @Override
+    public void onAssignKeyDialogPositiveClick(
+    		boolean masterPasswordChecked, String masterPassword,
+			boolean keyFileChecked, Uri keyFile) {
+
+        AssignPasswordHelper assignPasswordHelper =
+                new AssignPasswordHelper(this,
+                        masterPassword, keyFile);
+        assignPasswordHelper.assignPasswordInDatabase(null);
+    }
+
+    @Override
+    public void onAssignKeyDialogNegativeClick(
+			boolean masterPasswordChecked, String masterPassword,
+			boolean keyFileChecked, Uri keyFile) {
+
+    }
+
+    @Override
+    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
+        super.onActivityResult(requestCode, resultCode, data);
+        switch (requestCode) {
+            case EntryEditActivity.ADD_OR_UPDATE_ENTRY_REQUEST_CODE:
+                if (resultCode == EntryEditActivity.ADD_ENTRY_RESULT_CODE ||
+                        resultCode == EntryEditActivity.UPDATE_ENTRY_RESULT_CODE) {
+                    PwNode newNode = (PwNode) data.getSerializableExtra(EntryEditActivity.ADD_OR_UPDATE_ENTRY_KEY);
+                    if (newNode != null) {
+						if (resultCode == EntryEditActivity.ADD_ENTRY_RESULT_CODE)
+							mAdapter.addNode(newNode);
+						if (resultCode == EntryEditActivity.UPDATE_ENTRY_RESULT_CODE) {
+							//mAdapter.updateLastNodeRegister(newNode);
+							mAdapter.rebuildList(mCurrentGroup);
+						}
+					} else {
+                        Log.e(this.getClass().getName(), "New node can be retrieve in Activity Result");
+                    }
+                }
+                break;
+        }
+    }
+
+	@Override
+	public void startActivityForResult(Intent intent, int requestCode, Bundle options) {
+		/*
+		 * ACTION_SEARCH automatically forces a new task. This occurs when you open a kdb file in
+		 * another app such as Files or GoogleDrive and then Search for an entry. Here we remove the
+		 * FLAG_ACTIVITY_NEW_TASK flag bit allowing search to open it's activity in the current task.
+		 */
+		if (Intent.ACTION_SEARCH.equals(intent.getAction())) {
+			int flags = intent.getFlags();
+			flags &= ~Intent.FLAG_ACTIVITY_NEW_TASK;
+			intent.setFlags(flags);
+		}
+
+		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
+			super.startActivityForResult(intent, requestCode, options);
+		}
+	}
+
+    class AfterAddNode extends AfterAddNodeOnFinish {
+        AfterAddNode(Handler handler) {
+            super(handler);
+        }
+
+        public void run(PwNode pwNode) {
+            super.run();
+            if (mSuccess) {
+                mAdapter.addNode(pwNode);
+            } else {
+                displayMessage(ListNodesActivity.this);
+            }
+        }
+    }
+
+    class AfterDeleteNode extends OnFinish {
+        private PwNode pwNode;
+
+        AfterDeleteNode(Handler handler, PwNode pwNode) {
+            super(handler);
+            this.pwNode = pwNode;
+        }
+
+        @Override
+        public void run() {
+            if ( mSuccess) {
+                mAdapter.removeNode(pwNode);
+                PwGroup parent = pwNode.getParent();
+                PwDatabase database = App.getDB().pm;
+                if (database.isRecycleBinAvailable() && database.isRecycleBinEnable()) {
+                    PwGroup recycleBin = database.getRecycleBin();
+                    // Add trash if it doesn't exists
+                    if (parent.equals(recycleBin)
+                            && mCurrentGroup.getParent() == null
+                            && !mCurrentGroup.equals(recycleBin)) {
+                        mAdapter.addNode(parent);
+                    }
+                }
+            } else {
+                mHandler.post(new UIToastTask(ListNodesActivity.this, "Unrecoverable error: " + mMessage));
+                App.setShutdown();
+                finish();
+            }
+        }
+    }
+}

app/src/main/java/com/keepassdroid/activities/LockingActivity.java

@@ -17,7 +17,7 @@
  *  along with KeePass DX.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
-package com.keepassdroid;
+package com.keepassdroid.activities;
 
 
 import android.content.BroadcastReceiver;
@@ -28,10 +28,9 @@ import android.os.Bundle;
 import android.support.annotation.Nullable;
 
 import com.keepassdroid.app.App;
-import com.keepassdroid.settings.PrefsUtil;
+import com.keepassdroid.settings.PreferencesUtil;
 import com.keepassdroid.stylish.StylishActivity;
 import com.keepassdroid.timeout.TimeoutHelper;
-import com.kunzisoft.keepass.KeePass;
 
 
 public abstract class LockingActivity extends StylishActivity {
@@ -41,7 +40,7 @@ public abstract class LockingActivity extends StylishActivity {
     @Override
     protected void onCreate(@Nullable Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
-        if (PrefsUtil.isLockDatabaseWhenScreenShutOffEnable(this)) {
+        if (PreferencesUtil.isLockDatabaseWhenScreenShutOffEnable(this)) {
             screenReceiver = new ScreenReceiver();
             registerReceiver(screenReceiver, new IntentFilter((Intent.ACTION_SCREEN_OFF)));
         } else
@@ -52,17 +51,10 @@ public abstract class LockingActivity extends StylishActivity {
 	protected void onResume() {
 		super.onResume();
 
-        checkShutdown();
+        TimeoutHelper.checkShutdown(this);
 		TimeoutHelper.resume(this);
 	}
 
-    private void checkShutdown() {
-        if ( App.isShutdown() && App.getDB().Loaded() ) {
-            setResult(KeePass.EXIT_LOCK);
-            finish();
-        }
-    }
-
     @Override
     protected void onPause() {
         super.onPause();
@@ -84,9 +76,9 @@ public abstract class LockingActivity extends StylishActivity {
 
             if(intent.getAction() != null) {
                 if (intent.getAction().equals(Intent.ACTION_SCREEN_OFF)) {
-                    if (PrefsUtil.isLockDatabaseWhenScreenShutOffEnable(LockingActivity.this)) {
+                    if (PreferencesUtil.isLockDatabaseWhenScreenShutOffEnable(LockingActivity.this)) {
                         App.setShutdown();
-                        checkShutdown();
+                        TimeoutHelper.checkShutdown(LockingActivity.this);
                     }
                 }
             }

app/src/main/java/com/keepassdroid/activities/LockingHideActivity.java

@@ -17,12 +17,31 @@
  *  along with KeePass DX.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
-package com.keepassdroid;
+package com.keepassdroid.activities;
 
 import android.content.ActivityNotFoundException;
 import android.content.Intent;
+import android.os.Bundle;
+import android.view.WindowManager;
 
-public abstract class LockCloseActivity extends LockingActivity {
+import com.keepassdroid.compat.BuildCompat;
+
+/**
+ * Locking Hide Activity that sets FLAG_SECURE to prevent screenshots, and from
+ * appearing in the recent app preview
+ */
+public abstract class LockingHideActivity extends LockingActivity {
+
+	@Override
+	protected void onCreate(Bundle savedInstanceState) {
+		super.onCreate(savedInstanceState);
+
+		// Several gingerbread devices have problems with FLAG_SECURE
+		int ver = BuildCompat.getSdkVersion();
+		if (ver >= BuildCompat.VERSION_CODE_ICE_CREAM_SANDWICH || ver < BuildCompat.VERSION_CODE_GINGERBREAD) {
+			getWindow().setFlags(WindowManager.LayoutParams.FLAG_SECURE, WindowManager.LayoutParams.FLAG_SECURE);
+		}
+	}
 
 	/* (non-Javadoc) Workaround for HTC Linkify issues 
 	 * @see android.app.Activity#startActivity(android.content.Intent)

app/src/main/java/com/keepassdroid/adapters/BasicViewHolder.java

@@ -0,0 +1,17 @@
+package com.keepassdroid.adapters;
+
+import android.support.v7.widget.RecyclerView;
+import android.view.View;
+import android.widget.ImageView;
+import android.widget.TextView;
+
+abstract class BasicViewHolder extends RecyclerView.ViewHolder {
+
+    View container;
+    ImageView icon;
+    TextView text;
+
+    BasicViewHolder(View itemView) {
+        super(itemView);
+    }
+}

app/src/main/java/com/keepassdroid/adapters/EntryViewHolder.java

@@ -0,0 +1,17 @@
+package com.keepassdroid.adapters;
+
+import android.view.View;
+import android.widget.ImageView;
+import android.widget.TextView;
+
+import com.kunzisoft.keepass.R;
+
+class EntryViewHolder extends BasicViewHolder {
+
+    EntryViewHolder(View itemView) {
+        super(itemView);
+        container = itemView.findViewById(R.id.entry_container);
+        icon = (ImageView) itemView.findViewById(R.id.entry_icon);
+        text = (TextView) itemView.findViewById(R.id.entry_text);
+    }
+}

app/src/main/java/com/keepassdroid/adapters/GroupViewHolder.java

@@ -0,0 +1,17 @@
+package com.keepassdroid.adapters;
+
+import android.view.View;
+import android.widget.ImageView;
+import android.widget.TextView;
+
+import com.kunzisoft.keepass.R;
+
+class GroupViewHolder extends BasicViewHolder {
+
+    GroupViewHolder(View itemView) {
+        super(itemView);
+        container = itemView.findViewById(R.id.group_container);
+        icon = (ImageView) itemView.findViewById(R.id.group_icon);
+        text = (TextView) itemView.findViewById(R.id.group_text);
+    }
+}

app/src/main/java/com/keepassdroid/adapters/NodeAdapter.java

@@ -0,0 +1,293 @@
+/*
+ * Copyright 2018 Jeremy Jamet / Kunzisoft.
+ *
+ * This file is part of KeePass DX.
+ *
+ *  KeePass DX is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  KeePass DX is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with KeePass DX.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ *
+ */
+package com.keepassdroid.adapters;
+
+import android.content.Context;
+import android.support.v7.util.SortedList;
+import android.support.v7.widget.RecyclerView;
+import android.support.v7.widget.util.SortedListAdapterCallback;
+import android.util.Log;
+import android.view.ContextMenu;
+import android.view.LayoutInflater;
+import android.view.Menu;
+import android.view.MenuItem;
+import android.view.View;
+import android.view.ViewGroup;
+
+import com.keepassdroid.app.App;
+import com.keepassdroid.database.PwGroup;
+import com.keepassdroid.database.PwNode;
+import com.keepassdroid.settings.PreferencesUtil;
+import com.keepassdroid.database.SortNodeEnum;
+import com.kunzisoft.keepass.R;
+
+public class NodeAdapter extends RecyclerView.Adapter<BasicViewHolder> {
+
+    private SortedList<PwNode> nodeSortedList;
+
+    private Context context;
+    private LayoutInflater inflater;
+    private float textSize;
+    private SortNodeEnum listSort;
+    private boolean groupsBeforeSort;
+    private boolean ascendingSort;
+
+    private OnNodeClickCallback onNodeClickCallback;
+    private int nodePositionToUpdate;
+    private NodeMenuListener nodeMenuListener;
+    private boolean activateContextMenu;
+
+    /**
+     * Create node list adapter with contextMenu or not
+     * @param context Context to use
+     */
+    public NodeAdapter(final Context context) {
+        this.inflater = LayoutInflater.from(context);
+        this.context = context;
+        this.textSize = PreferencesUtil.getListTextSize(context);
+        this.listSort = PreferencesUtil.getListSort(context);
+        this.groupsBeforeSort = PreferencesUtil.getGroupsBeforeSort(context);
+        this.ascendingSort = PreferencesUtil.getAscendingSort(context);
+        this.activateContextMenu = false;
+        this.nodePositionToUpdate = -1;
+
+        this.nodeSortedList = new SortedList<>(PwNode.class, new SortedListAdapterCallback<PwNode>(this) {
+            @Override public int compare(PwNode item1, PwNode item2) {
+                return listSort.getNodeComparator(ascendingSort, groupsBeforeSort).compare(item1, item2);
+            }
+
+            @Override public boolean areContentsTheSame(PwNode oldItem, PwNode newItem) {
+                return oldItem.isContentVisuallyTheSame(newItem);
+            }
+
+            @Override public boolean areItemsTheSame(PwNode item1, PwNode item2) {
+                return item1.equals(item2);
+            }
+        });
+    }
+
+    public void setActivateContextMenu(boolean activate) {
+        this.activateContextMenu = activate;
+    }
+
+    /**
+     * Rebuild the list by clear and build children from the group
+     */
+    public void rebuildList(PwGroup group) {
+        this.nodeSortedList.clear();
+        this.nodeSortedList.addAll(group.getDirectChildren());
+    }
+
+    /**
+     * Add a node to the list
+     * @param node Node to add
+     */
+    public void addNode(PwNode node) {
+        nodeSortedList.add(node);
+    }
+
+    /**
+     * Register a node to update before an action
+     * Call updateLastNodeRegister() after the action to update the node
+     * @param node Node to register
+     */
+    public void registerANodeToUpdate(PwNode node) {
+        nodePositionToUpdate = nodeSortedList.indexOf(node);
+    }
+
+    /**
+     * Update the last Node register in the list
+     * Work if only registerANodeToUpdate(PwNode node) is called before
+     */
+    public void updateLastNodeRegister(PwNode node) {
+        // Don't really update here, sorted list knows each original ref, so we just notify a change
+        try {
+            if (nodePositionToUpdate != -1) {
+                // Don't know why but there is a bug to remove a node after this update
+                nodeSortedList.updateItemAt(nodePositionToUpdate, node);
+                nodeSortedList.recalculatePositionOfItemAt(nodePositionToUpdate);
+                nodePositionToUpdate = -1;
+            }
+            else {
+                Log.e(NodeAdapter.class.getName(), "registerANodeToUpdate must be called before updateLastNodeRegister");
+            }
+        } catch (IndexOutOfBoundsException e) {
+            Log.e(NodeAdapter.class.getName(), e.getMessage());
+        }
+    }
+
+    /**
+     * Remove node in the list
+     * @param node Node to delete
+     */
+    public void removeNode(PwNode node) {
+        nodeSortedList.remove(node);
+    }
+
+    /**
+     * Notify a change sort of the list
+     */
+    public void notifyChangeSort(SortNodeEnum sortNodeEnum, boolean ascending, boolean groupsBefore) {
+        this.listSort = sortNodeEnum;
+        this.ascendingSort = ascending;
+        this.groupsBeforeSort = groupsBefore;
+    }
+
+    @Override
+    public int getItemViewType(int position) {
+        return nodeSortedList.get(position).getType().ordinal();
+    }
+
+    @Override
+    public BasicViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
+        BasicViewHolder basicViewHolder;
+        View view;
+        if (viewType == PwNode.Type.GROUP.ordinal()) {
+            view = inflater.inflate(R.layout.list_nodes_group, parent, false);
+            basicViewHolder = new GroupViewHolder(view);
+        } else {
+            view = inflater.inflate(R.layout.list_nodes_entry, parent, false);
+            basicViewHolder = new EntryViewHolder(view);
+        }
+        return basicViewHolder;
+    }
+
+    @Override
+    public void onBindViewHolder(BasicViewHolder holder, int position) {
+        PwNode subNode = nodeSortedList.get(position);
+        // Assign image
+        App.getDB().drawFactory.assignDrawableTo(holder.icon,
+                context.getResources(), subNode.getIcon());
+        // Assign text
+        holder.text.setText(subNode.getDisplayTitle());
+        // Assign click
+        holder.container.setOnClickListener(
+                new OnNodeClickListener(subNode));
+        // Context menu
+        if (activateContextMenu) {
+            holder.container.setOnCreateContextMenuListener(
+                    new ContextMenuBuilder(subNode, nodeMenuListener));
+        }
+        // Assign text size
+        holder.text.setTextSize(textSize);
+    }
+
+    @Override
+    public int getItemCount() {
+        return nodeSortedList.size();
+    }
+
+    /**
+     * Assign a listener when a node is clicked
+     */
+    public void setOnNodeClickListener(OnNodeClickCallback onNodeClickCallback) {
+        this.onNodeClickCallback = onNodeClickCallback;
+    }
+
+    /**
+     * Assign a listener when an element of menu is clicked
+     */
+    public void setNodeMenuListener(NodeMenuListener nodeMenuListener) {
+        this.nodeMenuListener = nodeMenuListener;
+    }
+
+    /**
+     * Callback listener to redefine to do an action when a node is click
+     */
+    public interface OnNodeClickCallback {
+        void onNodeClick(PwNode node);
+    }
+
+    /**
+     * Menu listener to redefine to do an action in menu
+     */
+    public interface NodeMenuListener {
+        boolean onOpenMenuClick(PwNode node);
+        boolean onEditMenuClick(PwNode node);
+        boolean onDeleteMenuClick(PwNode node);
+    }
+
+    /**
+     * Utility class for node listener
+     */
+    private class OnNodeClickListener implements View.OnClickListener {
+        private PwNode node;
+
+        OnNodeClickListener(PwNode node) {
+            this.node = node;
+        }
+
+        @Override
+        public void onClick(View v) {
+            if (onNodeClickCallback != null)
+                onNodeClickCallback.onNodeClick(node);
+        }
+    }
+
+    /**
+     * Utility class for menu listener
+     */
+    private class ContextMenuBuilder implements View.OnCreateContextMenuListener {
+
+        private static final int MENU_OPEN = Menu.FIRST;
+        private static final int MENU_EDIT = MENU_OPEN + 1;
+        private static final int MENU_DELETE = MENU_EDIT + 1;
+
+        private PwNode node;
+        private NodeMenuListener menuListener;
+
+        ContextMenuBuilder(PwNode node, NodeMenuListener menuListener) {
+            this.menuListener = menuListener;
+            this.node = node;
+        }
+
+        @Override
+        public void onCreateContextMenu(ContextMenu contextMenu, View view, ContextMenu.ContextMenuInfo contextMenuInfo) {
+            MenuItem clearMenu = contextMenu.add(Menu.NONE, MENU_OPEN, Menu.NONE, R.string.menu_open);
+            clearMenu.setOnMenuItemClickListener(mOnMyActionClickListener);
+            if (!App.getDB().readOnly && !node.equals(App.getDB().pm.getRecycleBin())) {
+                // TODO make edit for group
+                // clearMenu = contextMenu.add(Menu.NONE, MENU_EDIT, Menu.NONE, R.string.menu_edit);
+                // clearMenu.setOnMenuItemClickListener(mOnMyActionClickListener);
+                clearMenu = contextMenu.add(Menu.NONE, MENU_DELETE, Menu.NONE, R.string.menu_delete);
+                clearMenu.setOnMenuItemClickListener(mOnMyActionClickListener);
+            }
+        }
+
+        private MenuItem.OnMenuItemClickListener mOnMyActionClickListener = new MenuItem.OnMenuItemClickListener() {
+            @Override
+            public boolean onMenuItemClick(MenuItem item) {
+                if (menuListener == null)
+                    return false;
+                switch ( item.getItemId() ) {
+                    case MENU_OPEN:
+                        return menuListener.onOpenMenuClick(node);
+                    case MENU_EDIT:
+                        return menuListener.onEditMenuClick(node);
+                    case MENU_DELETE:
+                        return menuListener.onDeleteMenuClick(node);
+                    default:
+                        return false;
+                }
+            }
+        };
+    }
+}

app/src/main/java/com/keepassdroid/app/App.java

@@ -19,16 +19,16 @@
  */
 package com.keepassdroid.app;
 
-import android.app.Application;
+import android.support.multidex.MultiDexApplication;
 
-import com.keepassdroid.Database;
 import com.keepassdroid.compat.PRNGFixes;
+import com.keepassdroid.database.Database;
 import com.keepassdroid.fileselect.RecentFileHistory;
 import com.keepassdroid.stylish.Stylish;
 
 import java.util.Calendar;
 
-public class App extends Application {
+public class App extends MultiDexApplication {
 	private static Database db = null;
 	private static boolean shutdown = false;
 	private static Calendar calendar = null;

app/src/main/java/com/keepassdroid/autofill/AutoFillAuthActivity.java

@@ -0,0 +1,68 @@
+/*
+ * Copyright 2017 Jeremy Jamet / Kunzisoft.
+ *
+ * This file is part of KeePass DX.
+ *
+ *  KeePass DX is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  KeePass DX is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with KeePass DX.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+package com.keepassdroid.autofill;
+
+import android.app.PendingIntent;
+import android.app.assist.AssistStructure;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentSender;
+import android.os.Build;
+import android.os.Bundle;
+import android.support.annotation.Nullable;
+import android.support.annotation.RequiresApi;
+
+import com.keepassdroid.fileselect.FileSelectActivity;
+import com.kunzisoft.keepass.KeePass;
+
+@RequiresApi(api = Build.VERSION_CODES.O)
+public class AutoFillAuthActivity extends KeePass {
+
+    private AutofillHelper autofillHelper;
+
+    @Override
+    protected void onCreate(@Nullable Bundle savedInstanceState) {
+        autofillHelper = new AutofillHelper();
+        super.onCreate(savedInstanceState);
+    }
+
+    public static IntentSender getAuthIntentSenderForResponse(Context context) {
+        final Intent intent = new Intent(context, AutoFillAuthActivity.class);
+        return PendingIntent.getActivity(context, 0,
+                intent, PendingIntent.FLAG_CANCEL_CURRENT).getIntentSender();
+    }
+
+    @Override
+    protected void startFileSelectActivity() {
+        // Pass extra for Autofill (EXTRA_ASSIST_STRUCTURE)
+        AssistStructure assistStructure = autofillHelper.retrieveAssistStructure(getIntent());
+        if (assistStructure != null) {
+            FileSelectActivity.launch(this, assistStructure);
+        } else {
+            setResult(RESULT_CANCELED);
+            finish();
+        }
+    }
+
+    @Override
+    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
+        AutofillHelper.onActivityResultSetResultAndFinish(this, requestCode, resultCode, data);
+    }
+}

app/src/main/java/com/keepassdroid/autofill/AutofillHelper.java

@@ -0,0 +1,174 @@
+/*
+ * Copyright 2017 Brian Pellin, Jeremy Jamet / Kunzisoft.
+ *
+ * This file is part of KeePass DX.
+ *
+ *  KeePass DX is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  KeePass DX is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with KeePass DX.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+package com.keepassdroid.autofill;
+
+import android.app.Activity;
+import android.app.assist.AssistStructure;
+import android.content.Context;
+import android.content.Intent;
+import android.os.Build;
+import android.service.autofill.Dataset;
+import android.service.autofill.FillResponse;
+import android.support.annotation.Nullable;
+import android.support.annotation.RequiresApi;
+import android.util.Log;
+import android.view.autofill.AutofillId;
+import android.view.autofill.AutofillManager;
+import android.view.autofill.AutofillValue;
+import android.widget.RemoteViews;
+
+import com.keepassdroid.database.PwEntry;
+import com.kunzisoft.keepass.R;
+
+import java.util.ArrayList;
+import java.util.List;
+
+
+@RequiresApi(api = Build.VERSION_CODES.O)
+public class AutofillHelper {
+
+    public static final int AUTOFILL_RESPONSE_REQUEST_CODE = 8165;
+
+    private AssistStructure assistStructure = null;
+
+    public AssistStructure retrieveAssistStructure(Intent intent) {
+        if (intent != null && intent.getExtras() != null) {
+            assistStructure = intent.getParcelableExtra(android.view.autofill.AutofillManager.EXTRA_ASSIST_STRUCTURE);
+        }
+        return assistStructure;
+    }
+
+    /**
+     * Call retrieveAssistStructure before
+     */
+    public AssistStructure getAssistStructure() {
+        return assistStructure;
+    }
+
+    public static void addAssistStructureExtraInIntent(Intent intent, AssistStructure assistStructure) {
+        if (assistStructure != null) {
+            intent.putExtra(android.view.autofill.AutofillManager.EXTRA_ASSIST_STRUCTURE, assistStructure);
+        }
+    }
+
+    /**
+     * Define if android.view.autofill.AutofillManager.EXTRA_ASSIST_STRUCTURE is an extra bundle key present in the Intent
+     */
+    public static boolean isIntentContainsExtraAssistStructureKey(Intent intent) {
+        return (intent != null
+                && intent.getExtras() != null
+                && intent.getExtras().containsKey(android.view.autofill.AutofillManager.EXTRA_ASSIST_STRUCTURE));
+    }
+
+    private @Nullable Dataset buildDataset(Context context, PwEntry entry,
+                         StructureParser.Result struct) {
+        String title = makeEntryTitle(entry);
+        RemoteViews views = newRemoteViews(context.getPackageName(), title);
+        Dataset.Builder builder = new Dataset.Builder(views);
+        builder.setId(entry.getUUID().toString());
+
+        if (entry.getPassword() != null) {
+            AutofillValue value = AutofillValue.forText(entry.getPassword());
+            struct.password.forEach(id -> builder.setValue(id, value));
+        }
+        if (entry.getUsername() != null) {
+            AutofillValue value = AutofillValue.forText(entry.getUsername());
+            List<AutofillId> ids = new ArrayList<>(struct.username);
+            if (entry.getUsername().contains("@") || struct.username.isEmpty())
+                ids.addAll(struct.email);
+            ids.forEach(id -> builder.setValue(id, value));
+        }
+        try {
+            return builder.build();
+        } catch (IllegalArgumentException e) {
+            // if not value be set
+            return null;
+        }
+    }
+
+    static private String makeEntryTitle(PwEntry entry) {
+        if (!entry.getTitle().isEmpty() && !entry.getUsername().isEmpty())
+            return String.format("%s (%s)", entry.getTitle(), entry.getUsername());
+        if (!entry.getTitle().isEmpty())
+            return entry.getTitle();
+        if (!entry.getUsername().isEmpty())
+            return entry.getUsername();
+        if (!entry.getNotes().isEmpty())
+            return entry.getNotes().trim();
+        return ""; // TODO No title
+    }
+
+    /**
+     * Method to hit when right key is selected
+     */
+    public void buildResponseWhenEntrySelected(Activity activity, PwEntry entry) {
+        Intent mReplyIntent;
+        Intent intent = activity.getIntent();
+        if (isIntentContainsExtraAssistStructureKey(intent)) {
+            AssistStructure structure = intent.getParcelableExtra(android.view.autofill.AutofillManager.EXTRA_ASSIST_STRUCTURE);
+            StructureParser.Result result = new StructureParser(structure).parse();
+
+            // New Response
+            FillResponse.Builder responseBuilder = new FillResponse.Builder();
+            Dataset dataset = buildDataset(activity, entry, result);
+            responseBuilder.addDataset(dataset);
+            mReplyIntent = new Intent();
+            Log.d(activity.getClass().getName(), "Successed Autofill auth.");
+            mReplyIntent.putExtra(
+                    AutofillManager.EXTRA_AUTHENTICATION_RESULT,
+                    responseBuilder.build());
+            activity.setResult(Activity.RESULT_OK, mReplyIntent);
+        } else {
+            Log.w(activity.getClass().getName(), "Failed Autofill auth.");
+            activity.setResult(Activity.RESULT_CANCELED);
+        }
+    }
+
+    /**
+     * Utility method to loop and close each activity with return data
+     */
+    public static void onActivityResultSetResult(Activity activity, int requestCode, int resultCode, Intent data) {
+        if (requestCode == AUTOFILL_RESPONSE_REQUEST_CODE) {
+            if (resultCode == Activity.RESULT_OK) {
+                activity.setResult(resultCode, data);
+            }
+            if (resultCode == Activity.RESULT_CANCELED) {
+                activity.setResult(Activity.RESULT_CANCELED);
+            }
+        }
+    }
+
+    /**
+     * Utility method to loop and close each activity with return data
+     */
+    public static void onActivityResultSetResultAndFinish(Activity activity, int requestCode, int resultCode, Intent data) {
+        if (requestCode == AUTOFILL_RESPONSE_REQUEST_CODE) {
+            onActivityResultSetResult(activity, requestCode, resultCode, data);
+            activity.finish();
+        }
+    }
+
+    private static RemoteViews newRemoteViews(String packageName, String remoteViewsText) {
+        RemoteViews presentation =
+                new RemoteViews(packageName, R.layout.autofill_service_list_item);
+        presentation.setTextViewText(R.id.text, remoteViewsText);
+        return presentation;
+    }
+}

app/src/main/java/com/keepassdroid/autofill/KeeAutofillService.java

@@ -0,0 +1,87 @@
+/*
+ * Copyright 2017 Jeremy Jamet / Kunzisoft.
+ *
+ * This file is part of KeePass DX.
+ *
+ *  KeePass DX is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  KeePass DX is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with KeePass DX.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+package com.keepassdroid.autofill;
+
+import android.app.assist.AssistStructure;
+import android.content.IntentSender;
+import android.os.Build;
+import android.os.CancellationSignal;
+import android.service.autofill.AutofillService;
+import android.service.autofill.FillCallback;
+import android.service.autofill.FillContext;
+import android.service.autofill.FillRequest;
+import android.service.autofill.FillResponse;
+import android.service.autofill.SaveCallback;
+import android.service.autofill.SaveRequest;
+import android.support.annotation.NonNull;
+import android.support.annotation.RequiresApi;
+import android.util.Log;
+import android.view.autofill.AutofillId;
+import android.widget.RemoteViews;
+
+import com.kunzisoft.keepass.R;
+
+import java.util.Arrays;
+import java.util.List;
+
+@RequiresApi(api = Build.VERSION_CODES.O)
+public class KeeAutofillService extends AutofillService {
+    private static final String TAG = "KeeAutofillService";
+
+    @Override
+    public void onFillRequest(@NonNull FillRequest request, @NonNull CancellationSignal cancellationSignal,
+                              @NonNull FillCallback callback) {
+        List<FillContext> fillContexts = request.getFillContexts();
+        AssistStructure latestStructure = fillContexts.get(fillContexts.size() - 1).getStructure();
+
+        cancellationSignal.setOnCancelListener(() ->
+                Log.e(TAG, "Cancel autofill not implemented in this sample.")
+        );
+
+        FillResponse.Builder responseBuilder = new FillResponse.Builder();
+        // Check user's settings for authenticating Responses and Datasets.
+        StructureParser.Result parseResult = new StructureParser(latestStructure).parse();
+        AutofillId[] autofillIds = parseResult.allAutofillIds();
+        if (!Arrays.asList(autofillIds).isEmpty()) {
+            // If the entire Autofill Response is authenticated, AuthActivity is used
+            // to generate Response.
+            IntentSender sender = AutoFillAuthActivity.getAuthIntentSenderForResponse(this);
+            RemoteViews presentation = new RemoteViews(getPackageName(), R.layout.autofill_service_unlock);
+            responseBuilder.setAuthentication(autofillIds, sender, presentation);
+            callback.onSuccess(responseBuilder.build());
+        }
+    }
+
+    @Override
+    public void onSaveRequest(@NonNull SaveRequest request, @NonNull SaveCallback callback) {
+        // TODO Save autofill
+        //callback.onFailure(getString(R.string.autofill_not_support_save));
+    }
+
+    @Override
+    public void onConnected() {
+        Log.d(TAG, "onConnected");
+    }
+
+    @Override
+    public void onDisconnected() {
+        Log.d(TAG, "onDisconnected");
+    }
+}

app/src/main/java/com/keepassdroid/autofill/StructureParser.java

@@ -0,0 +1,115 @@
+/*
+ * Copyright 2018 Jeremy Jamet / Kunzisoft.
+ *
+ * This file is part of KeePass DX.
+ *
+ *  KeePass DX is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  KeePass DX is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with KeePass DX.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+package com.keepassdroid.autofill;
+
+import android.app.assist.AssistStructure;
+import android.os.Build;
+import android.support.annotation.RequiresApi;
+import android.text.InputType;
+import android.util.Log;
+import android.view.View;
+import android.view.autofill.AutofillId;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+
+/**
+ * Parse AssistStructure and guess username and password fields.
+ */
+@RequiresApi(api = Build.VERSION_CODES.O)
+class StructureParser {
+    static private final String TAG = StructureParser.class.getName();
+
+    final private AssistStructure structure;
+    private Result result;
+    private AutofillId usernameCandidate;
+
+    StructureParser(AssistStructure structure) {
+        this.structure = structure;
+    }
+
+    Result parse() {
+        result = new Result();
+        usernameCandidate = null;
+        for (int i=0; i<structure.getWindowNodeCount(); ++i) {
+            AssistStructure.WindowNode windowNode = structure.getWindowNodeAt(i);
+            result.title.add(windowNode.getTitle());
+            result.webDomain.add(windowNode.getRootViewNode().getWebDomain());
+            parseViewNode(windowNode.getRootViewNode());
+        }
+        // If not explicit username field found, add the field just before password field.
+        if (result.username.isEmpty() && result.email.isEmpty()
+                && !result.password.isEmpty() && usernameCandidate != null)
+            result.username.add(usernameCandidate);
+        return result;
+    }
+
+    private void parseViewNode(AssistStructure.ViewNode node) {
+        String[] hints = node.getAutofillHints();
+        if (hints != null && hints.length > 0) {
+            if (Arrays.stream(hints).anyMatch(View.AUTOFILL_HINT_USERNAME::equals))
+                result.username.add(node.getAutofillId());
+            else if (Arrays.stream(hints).anyMatch(View.AUTOFILL_HINT_EMAIL_ADDRESS::equals))
+                result.email.add(node.getAutofillId());
+            else if (Arrays.stream(hints).anyMatch(View.AUTOFILL_HINT_PASSWORD::equals))
+                result.password.add(node.getAutofillId());
+            else
+                Log.d(TAG, "unsupported hints");
+        } else if (node.getAutofillType() == View.AUTOFILL_TYPE_TEXT) {
+            int inputType = node.getInputType();
+            if ((inputType & InputType.TYPE_TEXT_VARIATION_EMAIL_ADDRESS) > 0)
+                result.email.add(node.getAutofillId());
+            else if ((inputType & InputType.TYPE_TEXT_VARIATION_PASSWORD) > 0)
+                result.password.add(node.getAutofillId());
+            else if (result.password.isEmpty())
+                usernameCandidate = node.getAutofillId();
+        }
+
+        for (int i=0; i<node.getChildCount(); ++i)
+            parseViewNode(node.getChildAt(i));
+    }
+
+    @RequiresApi(api = Build.VERSION_CODES.O)
+    static class Result {
+        final List<CharSequence> title;
+        final List<String> webDomain;
+        final List<AutofillId> username;
+        final List<AutofillId> email;
+        final List<AutofillId> password;
+
+        private Result() {
+            title = new ArrayList<>();
+            webDomain = new ArrayList<>();
+            username = new ArrayList<>();
+            email = new ArrayList<>();
+            password = new ArrayList<>();
+        }
+
+        AutofillId[] allAutofillIds() {
+            ArrayList<AutofillId> all = new ArrayList<>();
+            all.addAll(username);
+            all.addAll(email);
+            all.addAll(password);
+            return all.toArray(new AutofillId[0]);
+        }
+    }
+}

app/src/main/java/com/keepassdroid/compat/StorageAF.java

@@ -51,6 +51,6 @@ public class StorageAF {
         if (!supportsStorageFramework()) { return false; }
 
         SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(ctx);
-        return prefs.getBoolean(ctx.getString(R.string.saf_key), ctx.getResources().getBoolean(R.bool.saf_default));
+        return prefs.getBoolean(ctx.getString(R.string.saf_key), ctx.getResources().getBoolean(R.bool.settings_saf_default));
     }
 }

app/src/main/java/com/keepassdroid/database/Database.java

@@ -17,7 +17,7 @@
  *  along with KeePass DX.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
-package com.keepassdroid;
+package com.keepassdroid.database;
 
 import android.content.Context;
 import android.content.SharedPreferences;
@@ -25,9 +25,6 @@ import android.net.Uri;
 import android.preference.PreferenceManager;
 import android.util.Log;
 
-import com.keepassdroid.database.PwDatabase;
-import com.keepassdroid.database.PwDatabaseV3;
-import com.keepassdroid.database.PwGroup;
 import com.keepassdroid.database.exception.ContentFileNotFoundException;
 import com.keepassdroid.database.exception.InvalidDBException;
 import com.keepassdroid.database.exception.InvalidPasswordException;
@@ -37,6 +34,7 @@ import com.keepassdroid.database.load.ImporterFactory;
 import com.keepassdroid.database.save.PwDbOutput;
 import com.keepassdroid.icons.DrawableFactory;
 import com.keepassdroid.search.SearchDbHelper;
+import com.keepassdroid.tasks.UpdateStatus;
 import com.keepassdroid.utils.UriUtil;
 import com.kunzisoft.keepass.R;
 
@@ -48,14 +46,11 @@ import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
 import java.io.SyncFailedException;
-import java.util.HashSet;
-import java.util.Set;
 
 /**
  * @author bpellin
  */
 public class Database {
-    public Set<PwGroup> dirty = new HashSet<PwGroup>();
     public PwDatabase pm;
     public Uri mUri;
     public SearchDbHelper searchHelper;
@@ -222,7 +217,6 @@ public class Database {
     }
 
     public void clear() {
-        dirty.clear();
         drawFactory.clear();
 
         pm = null;
@@ -230,16 +224,4 @@ public class Database {
         loaded = false;
         passwordEncodingError = false;
     }
-
-    public void markAllGroupsAsDirty() {
-        for ( PwGroup group : pm.getGroups() ) {
-            dirty.add(group);
-        }
-
-        // TODO: This should probably be abstracted out
-        // The root tree in v3 is not an 'official' tree
-        if ( pm instanceof PwDatabaseV3 ) {
-            dirty.add(pm.rootGroup);
-        }
-    }
 }

app/src/main/java/com/keepassdroid/database/PwDatabase.java

@@ -19,12 +19,8 @@
  */
 package com.keepassdroid.database;
 
-import java.io.BufferedInputStream;
 import java.io.ByteArrayInputStream;
 import java.io.ByteArrayOutputStream;
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.UnsupportedEncodingException;
@@ -36,8 +32,6 @@ import java.util.List;
 import java.util.Map;
 import java.util.UUID;
 
-import android.os.DropBoxManager.Entry;
-
 import com.keepassdroid.crypto.finalkey.FinalKey;
 import com.keepassdroid.crypto.finalkey.FinalKeyFactory;
 import com.keepassdroid.database.exception.InvalidKeyFileException;
@@ -252,7 +246,7 @@ public abstract class PwDatabase {
 
     public abstract void setNumRounds(long rounds) throws NumberFormatException;
 
-    public abstract boolean appSettingsEnabled();
+    public abstract boolean algorithmSettingsEnabled();
 
     public abstract PwEncryptionAlgorithm getEncAlgorithm();
 
@@ -262,7 +256,7 @@ public abstract class PwDatabase {
             parent = rootGroup;
         }
 
-        parent.childGroups.add(newGroup);
+        parent.addChildGroup(newGroup);
         newGroup.setParent(parent);
         groups.put(newGroup.getId(), newGroup);
 
@@ -271,15 +265,16 @@ public abstract class PwDatabase {
 
     public void removeGroupFrom(PwGroup remove, PwGroup parent) {
         // Remove tree from parent tree
-        parent.childGroups.remove(remove);
-
+        if (parent != null) {
+            parent.removeChildGroup(remove);
+        }
         groups.remove(remove.getId());
     }
 
     public void addEntryTo(PwEntry newEntry, PwGroup parent) {
         // Add entry to parent
         if (parent != null) {
-            parent.childEntries.add(newEntry);
+            parent.addChildEntry(newEntry);
         }
         newEntry.setParent(parent);
 
@@ -289,7 +284,7 @@ public abstract class PwDatabase {
     public void removeEntryFrom(PwEntry remove, PwGroup parent) {
         // Remove entry for parent
         if (parent != null) {
-            parent.childEntries.remove(remove);
+            parent.removeChildEntry(remove);
         }
         entries.remove(remove.getUUID());
     }
@@ -337,28 +332,73 @@ public abstract class PwDatabase {
         }
     }
 
+    /**
+     * Determine if RecycleBin is available or not for this version of database
+     * @return true if RecycleBin enable
+     */
+    public boolean isRecycleBinAvailable() {
+        return false;
+    }
+
+    /**
+     * Determine if RecycleBin is enable or not
+     * @return true if RecycleBin enable, false if is not available or not enable
+     */
+    public boolean isRecycleBinEnable() {
+        return false;
+    }
+
+    /**
+     * Define if a Group must be delete or recycle
+     * @param group Group to remove
+     * @return true if group can be recycle, false elsewhere
+     */
     public boolean canRecycle(PwGroup group) {
         return false;
     }
 
+    /**
+     * Define if an Entry must be delete or recycle
+     * @param entry Entry to remove
+     * @return true if entry can be recycle, false elsewhere
+     */
     public boolean canRecycle(PwEntry entry) {
         return false;
     }
 
+    public void recycle(PwGroup group) {
+        // Assume calls to this are protected by calling inRecyleBin
+        throw new RuntimeException("Call not valid for .kdb databases.");
+    }
+
     public void recycle(PwEntry entry) {
         // Assume calls to this are protected by calling inRecyleBin
         throw new RuntimeException("Call not valid for .kdb databases.");
     }
 
+    public void undoRecycle(PwGroup group, PwGroup origParent) {
+        throw new RuntimeException("Call not valid for .kdb databases.");
+    }
+
     public void undoRecycle(PwEntry entry, PwGroup origParent) {
         throw new RuntimeException("Call not valid for .kdb databases.");
     }
 
+    public void deleteGroup(PwGroup group) {
+        PwGroup parent = group.getParent();
+        removeGroupFrom(group, parent);
+        parent.touch(false, true);
+    }
+
     public void deleteEntry(PwEntry entry) {
         PwGroup parent = entry.getParent();
         removeEntryFrom(entry, parent);
         parent.touch(false, true);
+    }
 
+    // TODO Delete group
+    public void undoDeleteGroup(PwGroup group, PwGroup origParent) {
+        addGroupTo(group, origParent);
     }
 
     public void undoDeleteEntry(PwEntry entry, PwGroup origParent) {

app/src/main/java/com/keepassdroid/database/PwDatabaseV3.java

@@ -51,7 +51,6 @@ import java.io.InputStream;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Random;
-import java.util.UUID;
 
 import com.keepassdroid.database.exception.InvalidKeyFileException;
 
@@ -164,7 +163,7 @@ public class PwDatabaseV3 extends PwDatabase {
 
 			List<PwGroup> rootChildGroups = getGrpRoots();
 			root.setGroups(rootChildGroups);
-			root.childEntries = new ArrayList<PwEntry>();
+			root.childEntries = new ArrayList<>();
 			root.level = -1;
 			for (int i = 0; i < rootChildGroups.size(); i++) {
 				PwGroupV3 grp = (PwGroupV3) rootChildGroups.get(i);
@@ -180,12 +179,12 @@ public class PwDatabaseV3 extends PwDatabase {
 		currentGroup.childEntries = getEntries(currentGroup);
 
 		// set parent in child entries
-		for (int i = 0; i < currentGroup.childEntries.size(); i++) {
+		for (int i = 0; i < currentGroup.numbersOfChildEntries(); i++) {
 			PwEntryV3 entry = (PwEntryV3) currentGroup.childEntries.get(i);
 			entry.parent = currentGroup;
 		}
 		// recursively construct child groups
-		for (int i = 0; i < currentGroup.childGroups.size(); i++) {
+		for (int i = 0; i < currentGroup.numbersOfChildGroups(); i++) {
 			PwGroupV3 grp = (PwGroupV3) currentGroup.childGroups.get(i);
 			grp.parent = currentGroup;
 			constructTree((PwGroupV3) currentGroup.childGroups.get(i));
@@ -263,7 +262,7 @@ public class PwDatabaseV3 extends PwDatabase {
 	}
 
 	@Override
-	public boolean appSettingsEnabled() {
+	public boolean algorithmSettingsEnabled() {
 		return true;
 	}
 

app/src/main/java/com/keepassdroid/database/PwDatabaseV4.java

@@ -300,7 +300,7 @@ public class PwDatabaseV4 extends PwDatabase {
 	}
 
 	@Override
-	public boolean appSettingsEnabled() {
+	public boolean algorithmSettingsEnabled() {
 		return false;
 	}
 
@@ -361,14 +361,22 @@ public class PwDatabaseV4 extends PwDatabase {
 		}
 	}
 
+    @Override
+    public boolean isRecycleBinAvailable() {
+        return true;
+    }
+
+    @Override
+	public boolean isRecycleBinEnable() {
+		return recycleBinEnabled;
+	}
+	
 	@Override
 	public boolean canRecycle(PwGroup group) {
 		if (!recycleBinEnabled) {
 			return false;
 		}
-		
 		PwGroup recycle = getRecycleBin();
-		
 		return (recycle == null) || (!group.isContainedIn(recycle));
 	}
 
@@ -377,11 +385,25 @@ public class PwDatabaseV4 extends PwDatabase {
 		if (!recycleBinEnabled) {
 			return false;
 		}
-		
 		PwGroup parent = entry.getParent();
 		return (parent != null) && canRecycle(parent);
 	}
 
+	@Override
+	public void recycle(PwGroup group) {
+		ensureRecycleBin();
+
+		PwGroup parent = group.getParent();
+		removeGroupFrom(group, parent);
+		parent.touch(false, true);
+
+		PwGroup recycleBin = getRecycleBin();
+		addGroupTo(group, recycleBin);
+
+        group.touch(false, true);
+        // TODO ? group.touchLocation();
+	}
+
 	@Override
 	public void recycle(PwEntry entry) {
 		ensureRecycleBin();
@@ -397,6 +419,15 @@ public class PwDatabaseV4 extends PwDatabase {
 		entry.touchLocation();
 	}
 
+    @Override
+    public void undoRecycle(PwGroup group, PwGroup origParent) {
+
+        PwGroup recycleBin = getRecycleBin();
+        removeGroupFrom(group, recycleBin);
+
+        addGroupTo(group, origParent);
+    }
+
 	@Override
 	public void undoRecycle(PwEntry entry, PwGroup origParent) {
 		
@@ -409,14 +440,13 @@ public class PwDatabaseV4 extends PwDatabase {
 	@Override
 	public void deleteEntry(PwEntry entry) {
 		super.deleteEntry(entry);
-		
 		deletedObjects.add(new PwDeletedObject(entry.getUUID()));
 	}
 
 	@Override
 	public void undoDeleteEntry(PwEntry entry, PwGroup origParent) {
 		super.undoDeleteEntry(entry, origParent);
-		
+		// TODO undo delete entry
         deletedObjects.remove(entry);
 	}
 

app/src/main/java/com/keepassdroid/database/PwDate.java

@@ -19,6 +19,7 @@
  */
 package com.keepassdroid.database;
 
+import java.io.Serializable;
 import java.util.Arrays;
 import java.util.Calendar;
 import java.util.Date;
@@ -32,7 +33,7 @@ import com.keepassdroid.utils.Types;
  * @author bpellin
  *
  */
-public class PwDate implements Cloneable {
+public class PwDate implements Cloneable, Serializable {
 	
 	private static final int DATE_SIZE = 5; 
 	

app/src/main/java/com/keepassdroid/database/PwEntry.java

@@ -19,36 +19,22 @@
  */
 package com.keepassdroid.database;
 
+import com.keepassdroid.database.iterator.EntrySearchStringIterator;
+import com.keepassdroid.database.security.ProtectedString;
+
 import java.util.Comparator;
 import java.util.Date;
+import java.util.HashMap;
+import java.util.Map;
 import java.util.UUID;
 
-import com.keepassdroid.database.iterator.EntrySearchStringIterator;
-import com.keepassdroid.utils.SprEngine;
-
-public abstract class PwEntry implements Cloneable {
+public abstract class PwEntry extends PwNode implements Cloneable {
 
 	protected static final String PMS_TAN_ENTRY = "<TAN>";
 	
-	public static class EntryNameComparator implements Comparator<PwEntry> {
-
-		public int compare(PwEntry object1, PwEntry object2) {
-			return object1.getTitle().compareToIgnoreCase(object2.getTitle());
-		}
-		
-	}
-	
 	public PwIconStandard icon = PwIconStandard.FIRST;
 	
-	public PwEntry() {
-		
-	}
-	
 	public static PwEntry getInstance(PwGroup parent) {
-		return PwEntry.getInstance(parent, true, true);
-	}
-	
-	public static PwEntry getInstance(PwGroup parent, boolean initId, boolean initDates) {
 		if (parent instanceof PwGroupV3) {
 			return new PwEntryV3((PwGroupV3)parent);
 		}
@@ -77,6 +63,11 @@ public abstract class PwEntry implements Cloneable {
 		return (PwEntry) clone();
 	}
 
+	@Override
+	public Type getType() {
+		return Type.ENTRY;
+	}
+
     public void assign(PwEntry source) {
 		icon = source.icon;
 	}
@@ -109,12 +100,10 @@ public abstract class PwEntry implements Cloneable {
 	public abstract String getPassword(boolean decodeRef, PwDatabase db);
 	public abstract String getUrl(boolean decodeRef, PwDatabase db);
 	public abstract String getNotes(boolean decodeRef, PwDatabase db);
-	public abstract Date getCreationTime();
 	public abstract Date getLastModificationTime();
 	public abstract Date getLastAccessTime();
 	public abstract Date getExpiryTime();
 	public abstract boolean expires();
-	public abstract PwGroup getParent();
 	
 	public abstract void setTitle(String title, PwDatabase db);
 	public abstract void setUsername(String user, PwDatabase db);
@@ -147,7 +136,49 @@ public abstract class PwEntry implements Cloneable {
 		}
 	}
 
+	// TODO encapsulate extra fields
 
+    /**
+     * To redefine if version of entry allow extra field,
+     * @return true if entry allows extra field
+     */
+	public boolean allowExtraFields() {
+		return false;
+	}
+
+    /**
+     * Retrieve extra fields to show, key is the label, value is the value of field
+     * @param pm Database
+     * @return Map of label/value
+     */
+	public Map<String, String> getExtraFields(PwDatabase pm) {
+		return new HashMap<>();
+	}
+
+    /**
+     * Retrieve extra protected fields to show, key is the label, value is the value protected of field
+     * @return Map of label/value
+     */
+    public Map<String, ProtectedString> getExtraProtectedFields() {
+        return new HashMap<>();
+    }
+
+    /**
+     * Add an extra field to the list
+     * @param label Label of field, must be unique
+     * @param value Value of field
+     */
+    public void addField(String label, ProtectedString value) {}
+
+    /**
+     * Delete all extra fields
+     */
+    public void removeExtraFields() {}
+
+	/**
+	 * If it's a node with only meta information like Meta-info SYSTEM Database Color
+	 * @return false by default, true if it's a meta stream
+	 */
 	public boolean isMetaStream() {
 		return false;
 	}
@@ -173,10 +204,87 @@ public abstract class PwEntry implements Cloneable {
 	
 	public void touchLocation() { }
 	
-	public abstract void setParent(PwGroup parent);
-	
 	public boolean isSearchingEnabled() {
 		return false;
 	}
 
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+
+        PwEntry pwEntry = (PwEntry) o;
+        return isSameType(pwEntry)
+                && (getUUID() != null ? getUUID().equals(pwEntry.getUUID()) : pwEntry.getUUID() == null);
+    }
+
+    @Override
+    public int hashCode() {
+        return getUUID() != null ? getUUID().hashCode() : 0;
+    }
+
+    /**
+     * Comparator of Entry by Name
+     */
+    public static class EntryNameComparator implements Comparator<PwEntry> {
+
+		private boolean ascending;
+
+		public EntryNameComparator() {
+			this(true);
+		}
+
+		public EntryNameComparator(boolean ascending) {
+			this.ascending = ascending;
+		}
+
+        public int compare(PwEntry object1, PwEntry object2) {
+            if (object1.equals(object2))
+                return 0;
+
+            int entryTitleComp = object1.getTitle().compareToIgnoreCase(object2.getTitle());
+            // If same title, can be different
+            if (entryTitleComp == 0) {
+                return object1.hashCode() - object2.hashCode();
+            }
+			// If descending
+			if (!ascending)
+				entryTitleComp = -entryTitleComp;
+
+            return entryTitleComp;
+        }
+    }
+
+    /**
+     * Comparator of Entry by Creation
+     */
+    public static class EntryCreationComparator implements Comparator<PwEntry> {
+
+		private boolean ascending;
+
+		public EntryCreationComparator() {
+			this(true);
+		}
+
+		public EntryCreationComparator(boolean ascending) {
+			this.ascending = ascending;
+		}
+
+        public int compare(PwEntry object1, PwEntry object2) {
+            if (object1.equals(object2))
+                return 0;
+
+            int entryCreationComp = object1.getCreationTime().compareTo(object2.getCreationTime());
+            // If same creation, can be different
+            if (entryCreationComp == 0) {
+                return object1.hashCode() - object2.hashCode();
+            }
+			// If descending
+			if (!ascending)
+				entryCreationComp = -entryCreationComp;
+
+            return entryCreationComp;
+        }
+    }
+
 }

app/src/main/java/com/keepassdroid/database/PwEntryV3.java

@@ -43,14 +43,14 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 package com.keepassdroid.database;
 
 // PhoneID
+import com.keepassdroid.utils.Types;
+
 import java.io.UnsupportedEncodingException;
 import java.util.Calendar;
 import java.util.Date;
 import java.util.Random;
 import java.util.UUID;
 
-import com.keepassdroid.utils.Types;
-
 
 /**
  * Structure containing information about one entry.
@@ -191,7 +191,6 @@ public class PwEntryV3 extends PwEntry {
 			tLastMod = new PwDate(now);
 			tExpire = new PwDate(NEVER_EXPIRE);
 		}
-
 	}
 
 	/**
@@ -282,7 +281,6 @@ public class PwEntryV3 extends PwEntry {
 		return true;
 	}
 	
-	
 	@Override
 	public void assign(PwEntry source) {
 		

app/src/main/java/com/keepassdroid/database/PwEntryV4.java

@@ -19,19 +19,21 @@
  */
 package com.keepassdroid.database;
 
+import com.keepassdroid.database.security.ProtectedBinary;
+import com.keepassdroid.database.security.ProtectedString;
+import com.keepassdroid.utils.SprEngine;
+
+import java.io.Serializable;
 import java.util.ArrayList;
 import java.util.Calendar;
 import java.util.Date;
 import java.util.HashMap;
+import java.util.Iterator;
 import java.util.Map;
 import java.util.Map.Entry;
 import java.util.Set;
 import java.util.UUID;
 
-import com.keepassdroid.database.security.ProtectedBinary;
-import com.keepassdroid.database.security.ProtectedString;
-import com.keepassdroid.utils.SprEngine;
-
 public class PwEntryV4 extends PwEntry implements ITimeLogger {
 	public static final String STR_TITLE = "Title";
 	public static final String STR_USERNAME = "UserName";
@@ -41,14 +43,14 @@ public class PwEntryV4 extends PwEntry implements ITimeLogger {
 	
 	public PwGroupV4 parent;
 	public UUID uuid = PwDatabaseV4.UUID_ZERO;
-	public HashMap<String, ProtectedString> strings = new HashMap<String, ProtectedString>();
-	public HashMap<String, ProtectedBinary> binaries = new HashMap<String, ProtectedBinary>();
+	private HashMap<String, ProtectedString> fields = new HashMap<>();
+	public HashMap<String, ProtectedBinary> binaries = new HashMap<>();
 	public PwIconCustom customIcon = PwIconCustom.ZERO;
 	public String foregroundColor = "";
 	public String backgroupColor = "";
 	public String overrideURL = "";
 	public AutoType autoType = new AutoType();
-	public ArrayList<PwEntryV4> history = new ArrayList<PwEntryV4>();
+	public ArrayList<PwEntryV4> history = new ArrayList<>();
 	
 	private Date parentGroupLastMod = PwDatabaseV4.DEFAULT_NOW;
 	private Date creation = PwDatabaseV4.DEFAULT_NOW;
@@ -62,7 +64,7 @@ public class PwEntryV4 extends PwEntry implements ITimeLogger {
 	public String tags = "";
 	public Map<String, String> customData = new HashMap<String, String>();
 
-	public class AutoType implements Cloneable {
+	public class AutoType implements Cloneable, Serializable {
 		private static final long OBF_OPT_NONE = 0;
 		
 		public boolean enabled = true;
@@ -123,29 +125,19 @@ public class PwEntryV4 extends PwEntry implements ITimeLogger {
 		}
 	}
 
+
 	@SuppressWarnings("unchecked")
 	@Override
 	public PwEntry clone(boolean deepStrings) {
 		PwEntryV4 entry = (PwEntryV4) super.clone(deepStrings);
 		
 		if (deepStrings) {
-			entry.strings = (HashMap<String, ProtectedString>) strings.clone();
+			entry.fields = (HashMap<String, ProtectedString>) fields.clone();
 		}
 		
 		return entry;
 	}
 
-	@SuppressWarnings("unchecked")
-	public PwEntryV4 cloneDeep() {
-		PwEntryV4 entry = (PwEntryV4) clone(true);
-		
-		entry.binaries = (HashMap<String, ProtectedBinary>) binaries.clone();
-		entry.history = (ArrayList<PwEntryV4>) history.clone();
-		entry.autoType = (AutoType) autoType.clone();
-
-		return entry;
-	}
-
 	@Override
 	public void assign(PwEntry source) {
 		
@@ -162,7 +154,7 @@ public class PwEntryV4 extends PwEntry implements ITimeLogger {
 	private void assign(PwEntryV4 source) {
 		parent = source.parent;
 		uuid = source.uuid;
-		strings = source.strings;
+		fields = source.fields;
 		binaries = source.binaries;
 		customIcon = source.customIcon;
 		foregroundColor = source.foregroundColor;
@@ -313,7 +305,7 @@ public class PwEntryV4 extends PwEntry implements ITimeLogger {
 	}
 	
 	public String getString(String key) {
-		ProtectedString value = strings.get(key);
+		ProtectedString value = fields.get(key);
 		
 		if ( value == null ) return new String("");
 		
@@ -322,7 +314,7 @@ public class PwEntryV4 extends PwEntry implements ITimeLogger {
 
 	public void setString(String key, String value, boolean protect) {
 		ProtectedString ps = new ProtectedString(protect, value);
-		strings.put(key, ps);
+		fields.put(key, ps);
 	}
 
 	public Date getLocationChanged() {
@@ -367,23 +359,27 @@ public class PwEntryV4 extends PwEntry implements ITimeLogger {
 		} else {
 			return customIcon;
 		}
-		
-	}
-
-	public static boolean IsStandardString(String key) {
-		return key.equals(STR_TITLE) || key.equals(STR_USERNAME) 
-		  || key.equals(STR_PASSWORD) || key.equals(STR_URL)
-		  || key.equals(STR_NOTES);
 	}
 	
 	public void createBackup(PwDatabaseV4 db) {
 		PwEntryV4 copy = cloneDeep();
-		copy.history = new ArrayList<PwEntryV4>();
+		copy.history = new ArrayList<>();
 		history.add(copy);
 		
 		if (db != null) maintainBackups(db);
 	}
 
+    @SuppressWarnings("unchecked")
+    public PwEntryV4 cloneDeep() {
+        PwEntryV4 entry = (PwEntryV4) clone(true);
+
+        entry.binaries = (HashMap<String, ProtectedBinary>) binaries.clone();
+        entry.history = (ArrayList<PwEntryV4>) history.clone();
+        entry.autoType = (AutoType) autoType.clone();
+
+        return entry;
+    }
+	
 	private boolean maintainBackups(PwDatabaseV4 db) {
 		boolean deleted = false;
 		
@@ -433,12 +429,72 @@ public class PwEntryV4 extends PwEntry implements ITimeLogger {
 		}
 	}
 
+	@Override
+	public boolean allowExtraFields() {
+		return true;
+	}
+
+	public Map<String, ProtectedString> getFields() {
+	    return fields;
+    }
+
+    @Override
+    public Map<String, ProtectedString> getExtraProtectedFields() {
+        Map<String, ProtectedString> protectedFields = super.getExtraProtectedFields();
+        if (fields.size() > 0) {
+            for (Map.Entry<String, ProtectedString> pair : fields.entrySet()) {
+                String key = pair.getKey();
+                if (!PwEntryV4.IsStandardField(key)) {
+                    protectedFields.put(key, pair.getValue());
+                }
+            }
+        }
+        return protectedFields;
+    }
+
+    @Override
+	public Map<String, String> getExtraFields(PwDatabase pm) {
+		Map<String, String> extraFields = super.getExtraFields(pm);
+		SprEngine spr = SprEngine.getInstance(pm);
+		// Display custom fields
+		if (fields.size() > 0) {
+			for (Map.Entry<String, ProtectedString> pair : fields.entrySet()) {
+				String key = pair.getKey();
+                // TODO Add hidden style for protection field
+				if (!PwEntryV4.IsStandardField(key)) {
+                    extraFields.put(key, spr.compile(pair.getValue().toString(), this, pm));
+				}
+			}
+		}
+		return extraFields;
+	}
+
+    public static boolean IsStandardField(String key) {
+        return key.equals(STR_TITLE) || key.equals(STR_USERNAME)
+                || key.equals(STR_PASSWORD) || key.equals(STR_URL)
+                || key.equals(STR_NOTES);
+    }
+
+	public void addField(String label, ProtectedString value) {
+	    fields.put(label, value);
+    }
+
+    @Override
+    public void removeExtraFields() {
+        Iterator<Entry<String, ProtectedString>> iter = fields.entrySet().iterator();
+        while (iter.hasNext()) {
+            Map.Entry<String, ProtectedString> pair = iter.next();
+            if (!PwEntryV4.IsStandardField(pair.getKey())) {
+                iter.remove();
+            }
+        }
+    }
 	
 	private static final long FIXED_LENGTH_SIZE = 128; // Approximate fixed length size
 	public long getSize() {
 		long size = FIXED_LENGTH_SIZE;
 		
-		for (Entry<String, ProtectedString> pair : strings.entrySet()) {
+		for (Entry<String, ProtectedString> pair : fields.entrySet()) {
 			size += pair.getKey().length();
 			size += pair.getValue().length();
 		}

app/src/main/java/com/keepassdroid/database/PwGroup.java

@@ -19,26 +19,99 @@
  */
 package com.keepassdroid.database;
 
+import com.keepassdroid.utils.StrUtil;
+
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.Comparator;
 import java.util.Date;
 import java.util.List;
 
-import com.keepassdroid.utils.StrUtil;
+public abstract class PwGroup extends PwNode {
 
-public abstract class PwGroup {
-	public List<PwGroup> childGroups = new ArrayList<PwGroup>();
-	public List<PwEntry> childEntries = new ArrayList<PwEntry>();
+    // TODO Change dependency and make private
+	public List<PwGroup> childGroups = new ArrayList<>();
+	public List<PwEntry> childEntries = new ArrayList<>();
 	public String name = "";
 	public PwIconStandard icon;
 
-	public abstract PwGroup getParent();
-	public abstract void setParent(PwGroup parent);
+	private List<PwNode> children = new ArrayList<>();
+
+    public void initNewGroup(String nm, PwGroupId newId) {
+        setId(newId);
+        name = nm;
+    }
+
+    public void addChildGroup(PwGroup group) {
+        this.childGroups.add(group);
+    }
+
+    public void addChildEntry(PwEntry entry) {
+        this.childEntries.add(entry);
+    }
+
+    public void removeChildGroup(PwGroup group) {
+        this.childGroups.remove(group);
+    }
+
+    public void removeChildEntry(PwEntry entry) {
+        this.childEntries.remove(entry);
+    }
+
+    public int numbersOfChildGroups() {
+        return childGroups.size();
+    }
+
+    public int numbersOfChildEntries() {
+        return childEntries.size();
+    }
+
+    @Override
+	public Type getType() {
+		return Type.GROUP;
+	}
+
+    /**
+     * Filter MetaStream entries and return children
+     * @return List of direct children (one level below) as PwNode
+     */
+    public List<PwNode> getDirectChildren() {
+        children.clear();
+        children.addAll(childGroups);
+        for(PwEntry child : childEntries) {
+            if (!child.isMetaStream())
+            children.add(child);
+        }
+        return children;
+    }
+
+    /**
+     * Number of direct elements in Node (one level below)
+     * @return Size of child elements, default is 0
+     */
+    public int numberOfDirectChildren() {
+        return childGroups.size() + childEntries.size();
+    }
+
+    public boolean isContainedIn(PwGroup container) {
+        PwGroup cur = this;
+        while (cur != null) {
+            if (cur == container) {
+                return true;
+            }
+            cur = cur.getParent();
+        }
+        return false;
+    }
 
 	public abstract PwGroupId getId();
 	public abstract void setId(PwGroupId id);
 
+    @Override
+    public String getDisplayTitle() {
+        return getName();
+    }
+
     public abstract String getName();
 	
 	public abstract Date getLastMod();
@@ -47,47 +120,16 @@ public abstract class PwGroup {
 		return icon;
 	}
 	
-	public void sortGroupsByName() {
-		Collections.sort(childGroups, new GroupNameComparator());
-	}
-
-	public static class GroupNameComparator implements Comparator<PwGroup> {
-
-		public int compare(PwGroup object1, PwGroup object2) {
-			return object1.getName().compareToIgnoreCase(object2.getName());
-		}
-		
-	}
-	
 	public abstract void setLastAccessTime(Date date);
 
 	public abstract void setLastModificationTime(Date date);
 
-	public void sortEntriesByName() {
-		Collections.sort(childEntries, new PwEntry.EntryNameComparator());
-	}
-	
-	public void initNewGroup(String nm, PwGroupId newId) {
-		setId(newId);
-		name = nm;
-	}
-	
-	public boolean isContainedIn(PwGroup container) {
-		PwGroup cur = this;
-		while (cur != null) {
-			if (cur == container) {
-				return true;
-			}
-			
-			cur = cur.getParent();
-		}
-		
+	public boolean allowAddEntryIfIsRoot() {
 		return false;
 	}
 	
 	public void touch(boolean modified, boolean touchParents) {
 		Date now = new Date();
-		
 		setLastAccessTime(now);
 		
 		if (modified) {
@@ -100,7 +142,6 @@ public abstract class PwGroup {
 		}
 	}
 	
-	
 	public void searchEntries(SearchParameters sp, List<PwEntry> listStorage) {
 		if (sp == null)  { return; }
 		if (listStorage == null) { return; }
@@ -147,7 +188,6 @@ public abstract class PwGroup {
 						complement.add(entry);
 					}
 				}
-				
 				pg = complement;
 			}
 			else {
@@ -181,19 +221,94 @@ public abstract class PwGroup {
 		if (entryHandler != null) {
 			for (PwEntry entry : childEntries) {
 				if (!entryHandler.operate(entry)) return false;
-				
 			}
 		}
 	
 		for (PwGroup group : childGroups) {
-			
 			if ((groupHandler != null) && !groupHandler.operate(group)) return false;
-			
 			group.preOrderTraverseTree(groupHandler, entryHandler);
 		}
 		
-		
 		return true;
+	}
 
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+
+        PwGroup pwGroup = (PwGroup) o;
+        return isSameType(pwGroup)
+                && (getId() != null ? getId().equals(pwGroup.getId()) : pwGroup.getId() == null);
+    }
+
+    @Override
+    public int hashCode() {
+        PwGroupId groupId = getId();
+        return groupId != null ? groupId.hashCode() : 0;
+    }
+
+    /**
+     * Group comparator by name
+     */
+    public static class GroupNameComparator implements Comparator<PwGroup> {
+
+		private boolean ascending;
+
+        public GroupNameComparator() {
+            this(true);
+        }
+
+		public GroupNameComparator(boolean ascending) {
+			this.ascending = ascending;
+		}
+
+        public int compare(PwGroup object1, PwGroup object2) {
+            if (object1.equals(object2))
+                return 0;
+
+            int groupNameComp = object1.getName().compareToIgnoreCase(object2.getName());
+            // If same name, can be different
+            if (groupNameComp == 0) {
+                return object1.hashCode() - object2.hashCode();
+            }
+			// If descending
+			if (!ascending)
+				groupNameComp = -groupNameComp;
+
+            return groupNameComp;
+        }
+    }
+
+    /**
+     * Group comparator by name
+     */
+    public static class GroupCreationComparator implements Comparator<PwGroup> {
+
+    	private boolean ascending;
+
+        public GroupCreationComparator() {
+            this(true);
+        }
+
+    	public GroupCreationComparator(boolean ascending) {
+    		this.ascending = ascending;
+		}
+
+        public int compare(PwGroup object1, PwGroup object2) {
+            if (object1.equals(object2))
+                return 0;
+
+            int groupCreationComp = object1.getCreationTime().compareTo(object2.getCreationTime());
+            // If same creation, can be different
+            if (groupCreationComp == 0) {
+                return object1.hashCode() - object2.hashCode();
+            }
+            // If descending
+            if (!ascending)
+            	groupCreationComp = -groupCreationComp;
+
+            return groupCreationComp;
+        }
     }
 }

app/src/main/java/com/keepassdroid/database/PwGroupId.java

@@ -1,5 +1,7 @@
 package com.keepassdroid.database;
 
-public abstract class PwGroupId {
+import java.io.Serializable;
+
+public abstract class PwGroupId implements Serializable {
 
 }

app/src/main/java/com/keepassdroid/database/PwGroupIdV3.java

@@ -39,7 +39,7 @@ public class PwGroupIdV3 extends PwGroupId {
 
 	@Override
 	public int hashCode() {
-		Integer i = Integer.valueOf(id);
+		Integer i = id;
 		return i.hashCode();
 	}
 	

app/src/main/java/com/keepassdroid/database/PwGroupV3.java

@@ -30,12 +30,15 @@ Copyright 2006 Bill Zwicky <billzwicky@users.sourceforge.net>
 
 package com.keepassdroid.database;
 
+import android.content.Intent;
+import android.os.Bundle;
+
+import com.keepassdroid.utils.Types;
+
 import java.util.Calendar;
 import java.util.Date;
 import java.util.List;
 
-
-
 /**
  * @author Brian Pellin <bpellin@gmail.com>
  * @author Naomaru Itoi <nao@phoneid.org>
@@ -43,8 +46,6 @@ import java.util.List;
  * @author Dominik Reichl <dominik.reichl@t-online.de>
  */
 public class PwGroupV3 extends PwGroup {
-  public PwGroupV3() {
-  }
 
 	public String toString() {
 		return name;
@@ -155,4 +156,11 @@ public class PwGroupV3 extends PwGroup {
 		tLastMod = new PwDate(date);
 	}
 
+	@Override
+	public Date getCreationTime() {
+	    if(tCreation != null)
+		    return tCreation.getJDate();
+	    else
+	        return new Date();
+	}
 }

app/src/main/java/com/keepassdroid/database/PwGroupV4.java

@@ -48,9 +48,7 @@ public class PwGroupV4 extends PwGroup implements ITimeLogger {
 	private long usageCount = 0;
 	public Map<String, String> customData = new HashMap<String, String>();
 
-	public PwGroupV4() {
-		
-	}
+	public PwGroupV4() {}
 	
 	public PwGroupV4(boolean createUUID, boolean setTimes, String name, PwIconStandard icon) {
 		if (createUUID) {
@@ -65,6 +63,13 @@ public class PwGroupV4 extends PwGroup implements ITimeLogger {
 		this.icon = icon;
 	}
 
+    @Override
+    public void initNewGroup(String nm, PwGroupId newId) {
+        super.initNewGroup(nm, newId);
+
+        lastAccess = lastMod = creation = parentGroupLastMod = new Date();
+    }
+
 	public void AddGroup(PwGroupV4 subGroup, boolean takeOwnership) {
 		AddGroup(subGroup, takeOwnership, false);
 	}
@@ -87,7 +92,7 @@ public class PwGroupV4 extends PwGroup implements ITimeLogger {
 	public void AddEntry(PwEntryV4 pe, boolean takeOwnership, boolean updateLocationChanged) {
 		assert(pe != null);
 
-		childEntries.add(pe);
+		addChildEntry(pe);
 		
 		if ( takeOwnership ) pe.parent = this;
 		
@@ -102,7 +107,7 @@ public class PwGroupV4 extends PwGroup implements ITimeLogger {
 	public void buildChildGroupsRecursive(List<PwGroup> list) {
 		list.add(this);
 		
-		for ( int i = 0; i < childGroups.size(); i++) {
+		for ( int i = 0; i < numbersOfChildGroups(); i++) {
 			PwGroupV4 child = (PwGroupV4) childGroups.get(i);
 			child.buildChildGroupsRecursive(list);
 			
@@ -110,11 +115,11 @@ public class PwGroupV4 extends PwGroup implements ITimeLogger {
 	}
 
 	public void buildChildEntriesRecursive(List<PwEntry> list) {
-		for ( int i = 0; i < childEntries.size(); i++ ) {
+		for ( int i = 0; i < numbersOfChildEntries(); i++ ) {
 			list.add(childEntries.get(i));
 		}
 		
-		for ( int i = 0; i < childGroups.size(); i++ ) {
+		for ( int i = 0; i < numbersOfChildGroups(); i++ ) {
 			PwGroupV4 child = (PwGroupV4) childGroups.get(i);
 			child.buildChildEntriesRecursive(list);
 		}
@@ -168,7 +173,6 @@ public class PwGroupV4 extends PwGroup implements ITimeLogger {
 
 	public void setCreationTime(Date date) {
 		creation = date;
-		
 	}
 
 	public void setExpiryTime(Date date) {
@@ -204,7 +208,11 @@ public class PwGroupV4 extends PwGroup implements ITimeLogger {
 	@Override
 	public void setParent(PwGroup prt) {
 		parent = (PwGroupV4) prt;
+	}
 
+	@Override
+	public boolean allowAddEntryIfIsRoot() {
+		return true;
 	}
 
 	@Override
@@ -216,13 +224,6 @@ public class PwGroupV4 extends PwGroup implements ITimeLogger {
 		}
 	}
 	
-	@Override
-	public void initNewGroup(String nm, PwGroupId newId) {
-		super.initNewGroup(nm, newId);
-		
-		lastAccess = lastMod = creation = parentGroupLastMod = new Date();
-	}
-	
 	public boolean isSearchEnabled() {
 		PwGroupV4 group = this;
 		while (group != null) {

app/src/main/java/com/keepassdroid/database/PwIcon.java

@@ -1,6 +1,8 @@
 package com.keepassdroid.database;
 
-public abstract class PwIcon {
+import java.io.Serializable;
+
+public abstract class PwIcon implements Serializable {
 	
 	public boolean isMetaStreamIcon() {
 		return false;

app/src/main/java/com/keepassdroid/database/PwNode.java

@@ -0,0 +1,88 @@
+/*
+ * Copyright 2018 Jeremy Jamet / Kunzisoft.
+ *
+ * This file is part of KeePass DX.
+ *
+ *  KeePass DX is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  KeePass DX is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with KeePass DX.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ *
+ */
+package com.keepassdroid.database;
+
+import java.io.Serializable;
+import java.util.Date;
+
+/**
+ * Abstract class who manage Groups and Entries
+ */
+public abstract class PwNode implements Serializable {
+
+    /**
+     * Type of available Nodes
+     */
+    public enum Type {
+        GROUP, ENTRY
+    }
+
+    /**
+     * @return Type of Node
+     */
+    public abstract Type getType();
+
+    /**
+     * @return Title to display as view
+     */
+    public abstract String getDisplayTitle();
+
+    /**
+     * @return Visual icon
+     */
+    public abstract PwIcon getIcon();
+
+    /**
+     * @return Creation date and time of the node
+     */
+    public abstract Date getCreationTime();
+
+    /**
+     * Retrieve the parent node
+     * @return PwGroup parent as group
+     */
+    public abstract PwGroup getParent();
+
+    /**
+     * Assign a parent to this node
+     */
+    public abstract void setParent(PwGroup parent);
+
+    /**
+     * If the content (type, title, icon) is visually the same
+     * @param o Node to compare
+     * @return True if visually as o
+     */
+    public boolean isContentVisuallyTheSame(PwNode o) {
+        return getType().equals(o.getType())
+                && getDisplayTitle().equals(o.getDisplayTitle())
+                && getIcon().equals(o.getIcon());
+    }
+
+    /**
+     * Define if it's the same type of another node
+     * @param otherNode The other node to test
+     * @return true if both have the same type
+     */
+    boolean isSameType(PwNode otherNode) {
+        return getType() != null ? getType().equals(otherNode.getType()) : otherNode.getType() == null;
+    }
+}

app/src/main/java/com/keepassdroid/database/PwVersion.java

@@ -0,0 +1,5 @@
+package com.keepassdroid.database;
+
+public enum PwVersion {
+    V3, V4
+}

app/src/main/java/com/keepassdroid/database/SortNodeEnum.java

@@ -0,0 +1,176 @@
+/*
+ * Copyright 2018 Jeremy Jamet / Kunzisoft.
+ *
+ * This file is part of KeePass DX.
+ *
+ *  KeePass DX is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  KeePass DX is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with KeePass DX.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+package com.keepassdroid.database;
+
+import java.util.Comparator;
+
+public enum SortNodeEnum {
+    DB, TITLE, USERNAME, CREATION_TIME, LAST_MODIFY_TIME, LAST_ACCESS_TIME;
+
+    public Comparator<PwNode> getNodeComparator(boolean ascending, boolean groupsBefore) {
+        switch (this) {
+            case DB:
+                return new NodeCreationComparator(ascending, groupsBefore); // TODO Sort
+            default:
+            case TITLE:
+                return new NodeTitleComparator(ascending, groupsBefore);
+            case USERNAME:
+                return new NodeCreationComparator(ascending, groupsBefore); // TODO Sort
+            case CREATION_TIME:
+                return new NodeCreationComparator(ascending, groupsBefore);
+            case LAST_MODIFY_TIME:
+                return new NodeCreationComparator(ascending, groupsBefore); // TODO Sort
+            case LAST_ACCESS_TIME:
+                return new NodeCreationComparator(ascending, groupsBefore); // TODO Sort
+        }
+    }
+
+    private static abstract class NodeComparator implements Comparator<PwNode> {
+        boolean ascending;
+        boolean groupsBefore;
+
+        NodeComparator() {
+            this(true, true);
+        }
+
+        NodeComparator(boolean groupsBefore) {
+            this(true, groupsBefore);
+        }
+
+        NodeComparator(boolean ascending, boolean groupsBefore) {
+            this.ascending = ascending;
+            this.groupsBefore = groupsBefore;
+        }
+    }
+
+    /**
+     * Comparator of Node by Title, Groups first, Entries second
+     */
+    public static class NodeTitleComparator extends NodeComparator {
+
+        public NodeTitleComparator() {
+            super();
+        }
+
+        public NodeTitleComparator(boolean groupsBefore) {
+            super(groupsBefore);
+        }
+
+        public NodeTitleComparator(boolean ascending, boolean groupsBefore) {
+            super(ascending, groupsBefore);
+        }
+
+        public int compare(PwNode object1, PwNode object2) {
+            if (object1.equals(object2))
+                return 0;
+
+            if (object1 instanceof PwGroup) {
+                if (object2 instanceof PwGroup) {
+                    return new PwGroup.GroupNameComparator(ascending)
+                            .compare((PwGroup) object1, (PwGroup) object2);
+                } else if (object2 instanceof PwEntry) {
+                    if(groupsBefore)
+                        return -1;
+                    else
+                        return 1;
+                } else {
+                    return -1;
+                }
+            } else if (object1 instanceof PwEntry) {
+                if(object2 instanceof PwEntry) {
+                    return new PwEntry.EntryNameComparator(ascending)
+                            .compare((PwEntry) object1, (PwEntry) object2);
+                } else if (object2 instanceof PwGroup) {
+                    if(groupsBefore)
+                        return 1;
+                    else
+                        return -1;
+                } else {
+                    return -1;
+                }
+            }
+            int nodeNameComp = object1.getDisplayTitle()
+                    .compareToIgnoreCase(object2.getDisplayTitle());
+            // If same name, can be different
+            if (nodeNameComp == 0)
+                return object1.hashCode() - object2.hashCode();
+            return nodeNameComp;
+        }
+    }
+
+    /**
+     * Comparator of node by creation, Groups first, Entries second
+     */
+    public static class NodeCreationComparator extends NodeComparator {
+
+        public NodeCreationComparator() {
+            super();
+        }
+
+        public NodeCreationComparator(boolean groupsBefore) {
+            super(groupsBefore);
+        }
+
+
+        public NodeCreationComparator(boolean ascending, boolean groupsBefore) {
+            super(ascending, groupsBefore);
+        }
+
+        @Override
+        public int compare(PwNode object1, PwNode object2) {
+            if (object1.equals(object2))
+                return 0;
+
+            if (object1 instanceof PwGroup) {
+                if (object2 instanceof PwGroup) {
+                    return new PwGroup.GroupCreationComparator(ascending)
+                            .compare((PwGroup) object1, (PwGroup) object2);
+                } else if (object2 instanceof PwEntry) {
+                    if(groupsBefore)
+                        return -1;
+                    else
+                        return 1;
+                } else {
+                    return -1;
+                }
+            } else if (object1 instanceof PwEntry) {
+                if(object2 instanceof PwEntry) {
+                    return new PwEntry.EntryCreationComparator(ascending)
+                            .compare((PwEntry) object1, (PwEntry) object2);
+                } else if (object2 instanceof PwGroup) {
+                    if(groupsBefore)
+                        return 1;
+                    else
+                        return -1;
+                } else {
+                    return -1;
+                }
+            }
+            int nodeCreationComp = object1.getCreationTime()
+                    .compareTo(object2.getCreationTime());
+            // If same creation, can be different
+            if (nodeCreationComp == 0) {
+                return object1.hashCode() - object2.hashCode();
+            }
+            return nodeCreationComp;
+        }
+    }
+}

app/src/main/java/com/keepassdroid/database/edit/AddEntry.java

@@ -21,21 +21,16 @@ package com.keepassdroid.database.edit;
 
 import android.content.Context;
 
-import com.keepassdroid.Database;
+import com.keepassdroid.database.Database;
 import com.keepassdroid.database.PwDatabase;
 import com.keepassdroid.database.PwEntry;
-import com.keepassdroid.database.PwGroup;
 
 public class AddEntry extends RunnableOnFinish {
 	protected Database mDb;
 	private PwEntry mEntry;
 	private Context ctx;
 	
-	public static AddEntry getInstance(Context ctx, Database db, PwEntry entry, OnFinish finish) {
-		return new AddEntry(ctx, db, entry, finish);
-	}
-	
-	protected AddEntry(Context ctx, Database db, PwEntry entry, OnFinish finish) {
+	public AddEntry(Context ctx, Database db, PwEntry entry, OnFinish finish) {
 		super(finish);
 		
 		mDb = db;
@@ -56,27 +51,18 @@ public class AddEntry extends RunnableOnFinish {
 	
 	private class AfterAdd extends OnFinish {
 
-		public AfterAdd(OnFinish finish) {
+		AfterAdd(OnFinish finish) {
 			super(finish);
 		}
 
 		@Override
 		public void run() {
 			PwDatabase pm = mDb.pm;
-			if ( mSuccess ) {
-				
-				PwGroup parent = mEntry.getParent();
-
-				// Mark parent tree dirty
-				mDb.dirty.add(parent);
-				
-			} else {
+			if ( !mSuccess ) {
 				pm.removeEntryFrom(mEntry, mEntry.getParent());
 			}
-			
+			// TODO if add entry callback
 			super.run();
 		}
 	}
-	
-
 }

app/src/main/java/com/keepassdroid/database/edit/AddGroup.java

@@ -21,7 +21,7 @@ package com.keepassdroid.database.edit;
 
 import android.content.Context;
 
-import com.keepassdroid.Database;
+import com.keepassdroid.database.Database;
 import com.keepassdroid.database.PwDatabase;
 import com.keepassdroid.database.PwGroup;
 
@@ -32,16 +32,12 @@ public class AddGroup extends RunnableOnFinish {
 	private PwGroup mGroup;
 	private PwGroup mParent;
 	private Context ctx;
-	protected boolean mDontSave;
+	private boolean mDontSave;
 	
-	
-	public static AddGroup getInstance(Context ctx, Database db, String name, int iconid, PwGroup parent, OnFinish finish, boolean dontSave) {
-		return new AddGroup(ctx, db, name, iconid, parent, finish, dontSave);
-	}
-	
-	
-	private AddGroup(Context ctx, Database db, String name, int iconid, PwGroup parent, OnFinish finish, boolean dontSave) {
-		super(finish);
+	public AddGroup(Context ctx, Database db, String name, int iconid,
+                    PwGroup parent, AfterAddNodeOnFinish afterAddNode,
+                    boolean dontSave) {
+		super(afterAddNode);
 
 		mDb = db;
 		mName = name;
@@ -63,8 +59,6 @@ public class AddGroup extends RunnableOnFinish {
 		mGroup.icon = mDb.pm.iconFactory.getIcon(mIconID);
 		pm.addGroupTo(mGroup, mParent);
 
-		//mParent.sortGroupsByName();
-		
 		// Commit to disk
 		SaveDB save = new SaveDB(ctx, mDb, mFinish, mDontSave);
 		save.run();
@@ -72,24 +66,23 @@ public class AddGroup extends RunnableOnFinish {
 	
 	private class AfterAdd extends OnFinish {
 
-		public AfterAdd(OnFinish finish) {
+		AfterAdd(OnFinish finish) {
 			super(finish);
 		}
 
 		@Override
 		public void run() {
 			PwDatabase pm = mDb.pm;
-			if ( mSuccess ) {
-				// Mark parent group dirty
-				mDb.dirty.add(mParent);
-			} else {
+			if ( !mSuccess ) {
                 pm.removeGroupFrom(mGroup, mParent);
 			}
 
-			super.run();
+            // TODO Better callback
+            AfterAddNodeOnFinish afterAddNode =
+                    (AfterAddNodeOnFinish) super.mOnFinish;
+            afterAddNode.mSuccess = mSuccess;
+            afterAddNode.mMessage = mMessage;
+            afterAddNode.run(mGroup);
 		}
-
 	}
-	
-
 }

app/src/main/java/com/keepassdroid/database/edit/AfterAddNodeOnFinish.java

@@ -0,0 +1,13 @@
+package com.keepassdroid.database.edit;
+
+import android.os.Handler;
+
+import com.keepassdroid.database.PwNode;
+
+public abstract class AfterAddNodeOnFinish extends OnFinish {
+    public AfterAddNodeOnFinish(Handler handler) {
+        super(handler);
+    }
+
+    public abstract void run(PwNode pwNode);
+}

app/src/main/java/com/keepassdroid/database/edit/CreateDB.java

@@ -21,7 +21,7 @@ package com.keepassdroid.database.edit;
 
 import android.content.Context;
 
-import com.keepassdroid.Database;
+import com.keepassdroid.database.Database;
 import com.keepassdroid.app.App;
 import com.keepassdroid.database.PwDatabase;
 import com.keepassdroid.utils.UriUtil;

app/src/main/java/com/keepassdroid/database/edit/DeleteEntry.java

@@ -21,7 +21,7 @@ package com.keepassdroid.database.edit;
 
 import android.content.Context;
 
-import com.keepassdroid.Database;
+import com.keepassdroid.database.Database;
 import com.keepassdroid.database.PwDatabase;
 import com.keepassdroid.database.PwEntry;
 import com.keepassdroid.database.PwGroup;
@@ -71,8 +71,6 @@ public class DeleteEntry extends RunnableOnFinish {
 		// Commit database
 		SaveDB save = new SaveDB(ctx, mDb, mFinish, mDontSave);
 		save.run();
-	
-		
 	}
 
 	private class AfterDelete extends OnFinish {
@@ -81,7 +79,7 @@ public class DeleteEntry extends RunnableOnFinish {
 		private PwEntry mEntry;
 		private boolean recycled;
 		
-		public AfterDelete(OnFinish finish, PwGroup parent, PwEntry entry, boolean r) {
+		AfterDelete(OnFinish finish, PwGroup parent, PwEntry entry, boolean r) {
 			super(finish);
 			
 			mParent = parent;
@@ -92,18 +90,7 @@ public class DeleteEntry extends RunnableOnFinish {
 		@Override
 		public void run() {
 			PwDatabase pm = mDb.pm;
-			if ( mSuccess ) {
-				// Mark parent dirty
-				if ( mParent != null ) {
-					mDb.dirty.add(mParent);
-				}
-				
-				if (recycled) {
-					PwGroup recycleBin = pm.getRecycleBin();
-					mDb.dirty.add(recycleBin);
-					mDb.dirty.add(mDb.pm.rootGroup);
-				}
-			} else {
+			if ( !mSuccess ) {
 				if (recycled) {
 					pm.undoRecycle(mEntry, mParent);
 				}
@@ -111,11 +98,9 @@ public class DeleteEntry extends RunnableOnFinish {
 					pm.undoDeleteEntry(mEntry, mParent);
 				}
 			}
+			// TODO Callback after delete entry
 
 			super.run();
-			
 		}
-		
 	}
-	
 }

app/src/main/java/com/keepassdroid/database/edit/DeleteGroup.java

@@ -19,109 +19,115 @@
  */
 package com.keepassdroid.database.edit;
 
-import java.util.ArrayList;
-import java.util.List;
+import android.content.Context;
 
-import com.keepassdroid.Database;
-import com.keepassdroid.GroupBaseActivity;
 import com.keepassdroid.app.App;
+import com.keepassdroid.database.Database;
+import com.keepassdroid.database.PwDatabase;
 import com.keepassdroid.database.PwEntry;
 import com.keepassdroid.database.PwGroup;
 
+import java.util.ArrayList;
+import java.util.List;
+
 public class DeleteGroup extends RunnableOnFinish {
 
+    private Context mContext;
 	private Database mDb;
 	private PwGroup mGroup;
-	private GroupBaseActivity mAct;
 	private boolean mDontSave;
 	
-	public DeleteGroup(Database db, PwGroup group, GroupBaseActivity act, OnFinish finish) {
+	public DeleteGroup(Context ctx, Database db, PwGroup group, OnFinish finish) {
 		super(finish);
-		setMembers(db, group, act, false);
+		setMembers(ctx, db, group, false);
 	}
 
-	public DeleteGroup(Database db, PwGroup group, GroupBaseActivity act, OnFinish finish, boolean dontSave) {
+	public DeleteGroup(Context ctx, Database db, PwGroup group, OnFinish finish, boolean dontSave) {
 		super(finish);
-		setMembers(db, group, act, dontSave);
+		setMembers(ctx, db, group, dontSave);
 	}
 	
-	
 	public DeleteGroup(Database db, PwGroup group, OnFinish finish, boolean dontSave) {
 		super(finish);
-		setMembers(db, group, null, dontSave);
+		setMembers(null, db, group, dontSave);
 	}
 
-	private void setMembers(Database db, PwGroup group, GroupBaseActivity act, boolean dontSave) {
+	private void setMembers(Context ctx, Database db, PwGroup group, boolean dontSave) {
 		mDb = db;
 		mGroup = group;
-		mAct = act;
+        mContext = ctx;
 		mDontSave = dontSave;
-
-		mFinish = new AfterDelete(mFinish);
 	}
 	
-	
-	
 	@Override
 	public void run() {
+        PwDatabase pm = mDb.pm;
+        PwGroup parent = mGroup.getParent();
 
+        // Remove Group from parent
+        boolean recycle = pm.canRecycle(mGroup);
+        if (recycle) {
+            pm.recycle(mGroup);
+        }
+        else {
+            // TODO tests
             // Remove child entries
-		List<PwEntry> childEnt = new ArrayList<PwEntry>(mGroup.childEntries);
+            List<PwEntry> childEnt = new ArrayList<>(mGroup.childEntries);
             for ( int i = 0; i < childEnt.size(); i++ ) {
-			DeleteEntry task = new DeleteEntry(mAct, mDb, childEnt.get(i), null, true);
+                DeleteEntry task = new DeleteEntry(mContext, mDb, childEnt.get(i), null, true);
                 task.run();
             }
 
             // Remove child groups
-		List<PwGroup> childGrp = new ArrayList<PwGroup>(mGroup.childGroups);
+            List<PwGroup> childGrp = new ArrayList<>(mGroup.childGroups);
             for ( int i = 0; i < childGrp.size(); i++ ) {
-			DeleteGroup task = new DeleteGroup(mDb, childGrp.get(i), mAct, null, true);
+                DeleteGroup task = new DeleteGroup(mContext, mDb, childGrp.get(i), null, true);
                 task.run();
             }
-		
-		
-		// Remove from parent
-		PwGroup parent = mGroup.getParent();
-		if ( parent != null ) {
-			parent.childGroups.remove(mGroup);
-		}
+            pm.deleteGroup(mGroup);
 
             // Remove from PwDatabaseV3
+            // TODO ENcapsulate
             mDb.pm.getGroups().remove(mGroup);
+        }
 
         // Save
-		SaveDB save = new SaveDB(mAct, mDb, mFinish, mDontSave);
-		save.run();
+        mFinish = new AfterDelete(mFinish, parent, mGroup, recycle);
 		
+		// Commit Database
+		SaveDB save = new SaveDB(mContext, mDb, mFinish, mDontSave);
+		save.run();
 	}
 	
 	private class AfterDelete extends OnFinish {
-		public AfterDelete(OnFinish finish) {
+
+        private PwGroup mParent;
+        private PwGroup mGroup;
+        private boolean recycled;
+
+		AfterDelete(OnFinish finish, PwGroup parent, PwGroup mGroup, boolean recycle) {
 			super(finish);
+
+            this.mParent = parent;
+            this.mGroup = mGroup;
+            this.recycled = recycle;
 		}
 
 		public void run() {
-			if ( mSuccess ) {
-				// Remove from tree global
-				mDb.pm.groups.remove(mGroup.getId());
-				
-				// Remove tree from the dirty global (if it is present), not a big deal if this fails
-				mDb.dirty.remove(mGroup);
-				
-				// Mark parent dirty
-				PwGroup parent = mGroup.getParent();
-				if ( parent != null ) {
-					mDb.dirty.add(parent);
+            PwDatabase pm = mDb.pm;
+            if ( !mSuccess ) {
+                if (recycled) {
+                    pm.undoRecycle(mGroup, mParent);
                 }
-				mDb.dirty.add(mDb.pm.rootGroup);
-			} else {
+                else {
                     // Let's not bother recovering from a failure to save a deleted tree.  It is too much work.
                     App.setShutdown();
+                    // TODO TEST pm.undoDeleteGroup(mGroup, mParent);
                 }
+            }
+            // TODO Callback after delete group
 
 			super.run();
-
-		}
-
+		}
 	}
 }

app/src/main/java/com/keepassdroid/database/edit/LoadDB.java

@@ -25,7 +25,7 @@ import android.net.Uri;
 import android.preference.PreferenceManager;
 
 import com.kunzisoft.keepass.R;
-import com.keepassdroid.Database;
+import com.keepassdroid.database.Database;
 import com.keepassdroid.app.App;
 import com.keepassdroid.database.exception.ArcFourException;
 import com.keepassdroid.database.exception.ContentFileNotFoundException;
@@ -78,7 +78,7 @@ public class LoadDB extends RunnableOnFinish {
             finish(false, mCtx.getString(R.string.file_not_found_content));
             return;
         } catch (FileNotFoundException e) {
-            finish(false, mCtx.getString(R.string.FileNotFound));
+            finish(false, mCtx.getString(R.string.file_not_found));
             return;
         } catch (IOException e) {
             finish(false, e.getMessage());
@@ -104,6 +104,9 @@ public class LoadDB extends RunnableOnFinish {
         } catch (OutOfMemoryError e) {
             finish(false, mCtx.getString(R.string.error_out_of_memory));
             return;
+        } catch (Exception e) {
+            finish(false, e.getMessage());
+            return;
         }
 
         finish(true);

app/src/main/java/com/keepassdroid/database/edit/RunnableOnFinish.java

@@ -19,7 +19,7 @@
  */
 package com.keepassdroid.database.edit;
 
-import com.keepassdroid.UpdateStatus;
+import com.keepassdroid.tasks.UpdateStatus;
 
 
 public abstract class RunnableOnFinish implements Runnable {

app/src/main/java/com/keepassdroid/database/edit/SaveDB.java

@@ -23,7 +23,7 @@ import android.content.Context;
 
 import java.io.IOException;
 
-import com.keepassdroid.Database;
+import com.keepassdroid.database.Database;
 import com.keepassdroid.database.exception.PwDbOutputException;
 
 public class SaveDB extends RunnableOnFinish {

app/src/main/java/com/keepassdroid/database/edit/SetPassword.java

@@ -23,7 +23,7 @@ import android.content.Context;
 import android.content.DialogInterface;
 import android.net.Uri;
 
-import com.keepassdroid.Database;
+import com.keepassdroid.database.Database;
 import com.keepassdroid.database.PwDatabase;
 import com.keepassdroid.database.exception.InvalidKeyFileException;
 import com.keepassdroid.dialog.PasswordEncodingDialogHelper;

app/src/main/java/com/keepassdroid/database/edit/UpdateEntry.java

@@ -21,9 +21,8 @@ package com.keepassdroid.database.edit;
 
 import android.content.Context;
 
-import com.keepassdroid.Database;
+import com.keepassdroid.database.Database;
 import com.keepassdroid.database.PwEntry;
-import com.keepassdroid.database.PwGroup;
 
 public class UpdateEntry extends RunnableOnFinish {
 	private Database mDb;
@@ -61,36 +60,19 @@ public class UpdateEntry extends RunnableOnFinish {
 	private class AfterUpdate extends OnFinish {
 		private PwEntry mBackup;
 		
-		public AfterUpdate(PwEntry backup, OnFinish finish) {
+		AfterUpdate(PwEntry backup, OnFinish finish) {
 			super(finish);
-			
 			mBackup = backup;
 		}
 		
 		@Override
 		public void run() {
-			if ( mSuccess ) {
-				// Mark group dirty if title or icon changes
-				if ( ! mBackup.getTitle().equals(mNewE.getTitle()) || ! mBackup.getIcon().equals(mNewE.getIcon()) ) {
-					PwGroup parent = mBackup.getParent();
-					if ( parent != null ) {
-						// Resort entries
-						parent.sortEntriesByName();
-
-						// Mark parent group dirty
-						mDb.dirty.add(parent);
-						
-					}
-				}
-			} else {
+			if ( !mSuccess ) {
 				// If we fail to save, back out changes to global structure
 				mOldE.assign(mBackup);
 			}
-			
+			// TODO Callback for update entry
 			super.run();
 		}
-		
 	}
-
-
 }

app/src/main/java/com/keepassdroid/database/iterator/EntrySearchStringIteratorV4.java

@@ -35,14 +35,14 @@ public class EntrySearchStringIteratorV4 extends EntrySearchStringIterator {
 
 	public EntrySearchStringIteratorV4(PwEntryV4 entry) {
 		this.sp = SearchParametersV4.DEFAULT;
-		setIterator = entry.strings.entrySet().iterator();
+		setIterator = entry.getFields().entrySet().iterator();
 		advance();
 		
 	}
 
 	public EntrySearchStringIteratorV4(PwEntryV4 entry, SearchParametersV4 sp) {
 		this.sp = sp;
-		setIterator = entry.strings.entrySet().iterator();
+		setIterator = entry.getFields().entrySet().iterator();
 		advance();
 	}
 

app/src/main/java/com/keepassdroid/database/load/Importer.java

@@ -22,7 +22,7 @@ package com.keepassdroid.database.load;
 import java.io.IOException;
 import java.io.InputStream;
 
-import com.keepassdroid.UpdateStatus;
+import com.keepassdroid.tasks.UpdateStatus;
 import com.keepassdroid.database.PwDatabase;
 import com.keepassdroid.database.exception.InvalidDBException;
 

app/src/main/java/com/keepassdroid/database/load/ImporterV3.java

@@ -66,7 +66,7 @@ import javax.crypto.spec.SecretKeySpec;
 import android.util.Log;
 
 import com.kunzisoft.keepass.R;
-import com.keepassdroid.UpdateStatus;
+import com.keepassdroid.tasks.UpdateStatus;
 import com.keepassdroid.crypto.CipherFactory;
 import com.keepassdroid.database.PwDatabaseV3;
 import com.keepassdroid.database.PwDate;

app/src/main/java/com/keepassdroid/database/load/ImporterV3Debug.java

@@ -22,7 +22,7 @@ package com.keepassdroid.database.load;
 import java.io.IOException;
 import java.io.InputStream;
 
-import com.keepassdroid.UpdateStatus;
+import com.keepassdroid.tasks.UpdateStatus;
 import com.keepassdroid.database.PwDatabaseV3Debug;
 import com.keepassdroid.database.exception.InvalidDBException;
 

app/src/main/java/com/keepassdroid/database/load/ImporterV4.java

@@ -46,11 +46,10 @@ import org.xmlpull.v1.XmlPullParserFactory;
 
 import biz.source_code.base64Coder.Base64Coder;
 
-import com.keepassdroid.UpdateStatus;
+import com.keepassdroid.tasks.UpdateStatus;
 import com.keepassdroid.crypto.CipherFactory;
 import com.keepassdroid.crypto.PwStreamCipherFactory;
 import com.keepassdroid.crypto.engine.CipherEngine;
-import com.keepassdroid.database.BinaryPool;
 import com.keepassdroid.database.ITimeLogger;
 import com.keepassdroid.database.PwCompressionAlgorithm;
 import com.keepassdroid.database.PwDatabaseV4;
@@ -863,7 +862,7 @@ public class ImporterV4 extends Importer {
 		} else if ( ctx == KdbContext.EntryTimes && name.equalsIgnoreCase(ElemTimes) ) {
 			return KdbContext.Entry;
 		} else if ( ctx == KdbContext.EntryString && name.equalsIgnoreCase(ElemString) ) {
-			ctxEntry.strings.put(ctxStringName, ctxStringValue);
+			ctxEntry.addField(ctxStringName, ctxStringValue);
 			ctxStringName = null;
 			ctxStringValue = null;
 			
@@ -922,7 +921,7 @@ public class ImporterV4 extends Importer {
 			byte[] buf = Base64Coder.decode(sDate);
 			if (buf.length != 8) {
 				byte[] buf8 = new byte[8];
-				System.arraycopy(buf, 0, buf8, 0, buf.length);
+				System.arraycopy(buf, 0, buf8, 0, Math.min(buf.length, 8));
 				buf = buf8;
 			}
 

app/src/main/java/com/keepassdroid/database/load/ImporterV4Debug.java

@@ -19,7 +19,7 @@
  */
 package com.keepassdroid.database.load;
 
-import com.keepassdroid.UpdateStatus;
+import com.keepassdroid.tasks.UpdateStatus;
 import com.keepassdroid.database.PwDatabaseV4Debug;
 import com.keepassdroid.database.exception.InvalidDBException;
 

app/src/main/java/com/keepassdroid/database/save/PwDbV3Output.java

@@ -260,7 +260,7 @@ public class PwDbV3Output extends PwDbOutput {
 		groupList.add(group);
 		
 		// Recurse over children
-		for ( int i = 0; i < group.childGroups.size(); i++ ) {
+		for ( int i = 0; i < group.numbersOfChildGroups(); i++ ) {
 			sortGroup((PwGroupV3) group.childGroups.get(i), groupList);
 		}
 	}

app/src/main/java/com/keepassdroid/database/save/PwDbV4Output.java

@@ -475,7 +475,7 @@ public class PwDbV4Output extends PwDbOutput {
 		
 		writeList(ElemTimes, entry);
 		
-		writeList(entry.strings, true);
+		writeList(entry.getFields(), true);
 		writeList(entry.binaries);
 		writeList(ElemAutoType, entry.autoType);
 		

app/src/main/java/com/keepassdroid/database/security/ProtectedString.java

@@ -19,7 +19,9 @@
  */
 package com.keepassdroid.database.security;
 
-public class ProtectedString {
+import java.io.Serializable;
+
+public class ProtectedString implements Serializable {
 	
 	private String string;
 	private boolean protect;

app/src/main/java/com/keepassdroid/fileselect/DeleteFileHistoryAsyncTask.java

@@ -0,0 +1,52 @@
+/*
+ * Copyright 2018 Jeremy Jamet / Kunzisoft.
+ *
+ * This file is part of KeePass DX.
+ *
+ *  KeePass DX is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  KeePass DX is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with KeePass DX.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+package com.keepassdroid.fileselect;
+
+import android.os.AsyncTask;
+
+class DeleteFileHistoryAsyncTask extends AsyncTask<FileSelectBean, Void, Void> {
+
+    private AfterDeleteFileHistoryListener afterDeleteFileHistoryListener;
+    private RecentFileHistory fileHistory;
+    private FileSelectAdapter adapter;
+
+    DeleteFileHistoryAsyncTask(AfterDeleteFileHistoryListener afterDeleteFileHistoryListener, RecentFileHistory fileHistory, FileSelectAdapter adapter) {
+        this.afterDeleteFileHistoryListener = afterDeleteFileHistoryListener;
+        this.fileHistory = fileHistory;
+        this.adapter = adapter;
+    }
+
+    protected Void doInBackground(FileSelectBean... args) {
+        fileHistory.deleteFile(args[0].getFileUri());
+        return null;
+    }
+
+    protected void onPostExecute(Void v) {
+        adapter.notifyDataSetChanged();
+        if (adapter.getItemCount() == 0) {
+            if(afterDeleteFileHistoryListener != null)
+                afterDeleteFileHistoryListener.afterDeleteFile();
+        }
+    }
+
+    public interface AfterDeleteFileHistoryListener {
+        void afterDeleteFile();
+    }
+}

app/src/main/java/com/keepassdroid/fileselect/FileInformationDialogFragment.java

@@ -0,0 +1,90 @@
+/*
+ * Copyright 2018 Jeremy Jamet / Kunzisoft.
+ *
+ * This file is part of KeePass DX.
+ *
+ *  KeePass DX is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  KeePass DX is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with KeePass DX.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+package com.keepassdroid.fileselect;
+
+import android.app.Dialog;
+import android.content.DialogInterface;
+import android.net.Uri;
+import android.os.Bundle;
+import android.support.annotation.NonNull;
+import android.support.v4.app.DialogFragment;
+import android.support.v7.app.AlertDialog;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.widget.TextView;
+
+import com.kunzisoft.keepass.R;
+
+import java.text.DateFormat;
+
+public class FileInformationDialogFragment extends DialogFragment {
+
+    private static final String FILE_SELECT_BEEN_ARG = "FILE_SELECT_BEEN_ARG";
+
+    public static FileInformationDialogFragment newInstance(FileSelectBean fileSelectBean) {
+        FileInformationDialogFragment fileInformationDialogFragment =
+                new FileInformationDialogFragment();
+        Bundle args = new Bundle();
+        args.putSerializable(FILE_SELECT_BEEN_ARG, fileSelectBean);
+        fileInformationDialogFragment.setArguments(args);
+        return fileInformationDialogFragment;
+    }
+
+    @NonNull
+    @Override
+    public Dialog onCreateDialog(Bundle savedInstanceState) {
+        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
+        LayoutInflater inflater = getActivity().getLayoutInflater();
+        View root = inflater.inflate(R.layout.file_selection_information, null);
+
+        if (getArguments() != null && getArguments().containsKey(FILE_SELECT_BEEN_ARG)) {
+            FileSelectBean fileSelectBean = (FileSelectBean) getArguments().getSerializable(FILE_SELECT_BEEN_ARG);
+            TextView fileWarningView = (TextView) root.findViewById(R.id.file_warning);
+            if(fileSelectBean != null) {
+                TextView fileNameView = (TextView) root.findViewById(R.id.file_filename);
+                TextView filePathView = (TextView) root.findViewById(R.id.file_path);
+                TextView fileSizeView = (TextView) root.findViewById(R.id.file_size);
+                TextView fileModificationView = (TextView) root.findViewById(R.id.file_modification);
+                fileWarningView.setVisibility(View.GONE);
+                fileNameView.setText(fileSelectBean.getFileName());
+                filePathView.setText(Uri.decode(fileSelectBean.getFileUri().toString()));
+                fileSizeView.setText(String.valueOf(fileSelectBean.getSize()));
+                fileModificationView.setText(DateFormat.getDateTimeInstance()
+                        .format(fileSelectBean.getLastModification()));
+                if(fileSelectBean.notFound())
+                    showFileNotFound(fileWarningView);
+            } else
+                showFileNotFound(fileWarningView);
+        }
+
+        builder.setView(root);
+        builder.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
+            public void onClick(DialogInterface dialog, int id) {
+
+            }
+        });
+        return builder.create();
+    }
+
+    private void showFileNotFound(TextView fileWarningView) {
+        fileWarningView.setVisibility(View.VISIBLE);
+        fileWarningView.setText(R.string.file_not_found);
+    }
+}

app/src/main/java/com/keepassdroid/fileselect/FilePickerStylishActivity.java

@@ -17,7 +17,7 @@
  *  along with KeePass DX.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
-package com.keepassdroid;
+package com.keepassdroid.fileselect;
 
 import android.content.Context;
 import android.os.Bundle;

app/src/main/java/com/keepassdroid/fileselect/FileSelectActivity.java

@@ -21,123 +21,161 @@ package com.keepassdroid.fileselect;
 
 import android.Manifest;
 import android.app.Activity;
-import android.content.ActivityNotFoundException;
-import android.content.ContentResolver;
+import android.app.assist.AssistStructure;
+import android.content.DialogInterface;
 import android.content.Intent;
 import android.content.SharedPreferences;
-import android.content.pm.PackageManager;
 import android.net.Uri;
-import android.os.AsyncTask;
+import android.os.Build;
 import android.os.Bundle;
 import android.os.Environment;
 import android.preference.PreferenceManager;
-import android.support.v4.app.ActivityCompat;
-import android.support.v4.content.ContextCompat;
+import android.support.annotation.NonNull;
+import android.support.annotation.RequiresApi;
+import android.support.v7.app.AlertDialog;
+import android.support.v7.widget.LinearLayoutManager;
+import android.support.v7.widget.RecyclerView;
 import android.support.v7.widget.Toolbar;
 import android.util.Log;
-import android.view.ContextMenu;
-import android.view.ContextMenu.ContextMenuInfo;
 import android.view.Menu;
 import android.view.MenuItem;
 import android.view.View;
-import android.widget.AdapterView;
-import android.widget.AdapterView.AdapterContextMenuInfo;
-import android.widget.ArrayAdapter;
-import android.widget.BaseAdapter;
 import android.widget.EditText;
-import android.widget.ListView;
-import android.widget.TextView;
 import android.widget.Toast;
 
-import com.keepassdroid.AssignMasterKeyDialog;
-import com.keepassdroid.CreateFileDialog;
-import com.keepassdroid.GroupActivity;
-import com.keepassdroid.PasswordActivity;
-import com.keepassdroid.ProgressTask;
+import com.keepassdroid.activities.GroupActivity;
 import com.keepassdroid.app.App;
-import com.keepassdroid.compat.ContentResolverCompat;
-import com.keepassdroid.compat.StorageAF;
+import com.keepassdroid.autofill.AutofillHelper;
 import com.keepassdroid.database.edit.CreateDB;
 import com.keepassdroid.database.edit.FileOnFinish;
 import com.keepassdroid.database.exception.ContentFileNotFoundException;
-import com.keepassdroid.intents.Intents;
+import com.keepassdroid.fragments.AssignMasterKeyDialogFragment;
+import com.keepassdroid.fragments.CreateFileDialogFragment;
+import com.keepassdroid.password.PasswordActivity;
 import com.keepassdroid.stylish.StylishActivity;
+import com.keepassdroid.tasks.ProgressTask;
 import com.keepassdroid.utils.EmptyUtils;
-import com.keepassdroid.utils.Interaction;
 import com.keepassdroid.utils.MenuUtil;
 import com.keepassdroid.utils.UriUtil;
-import com.keepassdroid.utils.Util;
 import com.keepassdroid.view.AssignPasswordHelper;
 import com.keepassdroid.view.FileNameView;
+import com.keepassdroid.view.KeyFileHelper;
 import com.kunzisoft.keepass.R;
 
 import java.io.File;
 import java.io.FileNotFoundException;
 import java.io.IOException;
-import java.lang.ref.WeakReference;
 import java.net.URLDecoder;
 
+import permissions.dispatcher.NeedsPermission;
+import permissions.dispatcher.OnNeverAskAgain;
+import permissions.dispatcher.OnPermissionDenied;
+import permissions.dispatcher.OnShowRationale;
+import permissions.dispatcher.PermissionRequest;
+import permissions.dispatcher.RuntimePermissions;
+
+@RuntimePermissions
 public class FileSelectActivity extends StylishActivity implements
-		CreateFileDialog.DefinePathDialogListener ,
-		AssignMasterKeyDialog.AssignPasswordDialogListener {
+		CreateFileDialogFragment.DefinePathDialogListener ,
+		AssignMasterKeyDialogFragment.AssignPasswordDialogListener,
+		FileSelectAdapter.FileItemOpenListener,
+        FileSelectAdapter.FileSelectClearListener,
+        FileSelectAdapter.FileInformationShowListener {
 
     private static final String TAG = "FileSelectActivity";
 
-	private static final int MY_PERMISSIONS_REQUEST_EXTERNAL_STORAGE = 111;
-	private ListView mList;
-	private BaseAdapter mAdapter;
+    private static final String EXTRA_STAY = "EXTRA_STAY";
 
-	private static final int CMENU_CLEAR = Menu.FIRST;
-	
-	public static final int FILE_BROWSE = 1;
-	public static final int GET_CONTENT = 2;
-	public static final int OPEN_DOC = 3;
+    private FileSelectAdapter mAdapter;
+	private View fileListTitle;
 
 	private RecentFileHistory fileHistory;
 
-	private boolean recentMode = false;
+	// TODO Consultation Mode
+	private boolean consultationMode = false;
+    private AutofillHelper autofillHelper;
 
 	private EditText openFileNameView;
+	private FileNameView fileNameView;
 
 	private AssignPasswordHelper assignPasswordHelper;
 	private Uri databaseUri;
 
+	private KeyFileHelper keyFileHelper;
+
+	public static void launch(Activity activity) {
+		Intent intent = new Intent(activity, FileSelectActivity.class);
+		// only to avoid visible flickering when redirecting
+		activity.startActivityForResult(intent, 0);
+	}
+
+	@RequiresApi(api = Build.VERSION_CODES.O)
+	public static void launch(Activity activity, AssistStructure assistStructure) {
+		if ( assistStructure != null ) {
+			Intent intent = new Intent(activity, FileSelectActivity.class);
+			AutofillHelper.addAssistStructureExtraInIntent(intent, assistStructure);
+            activity.startActivityForResult(intent, AutofillHelper.AUTOFILL_RESPONSE_REQUEST_CODE);
+        } else {
+            launch(activity);
+        }
+	}
+
 	@Override
 	protected void onCreate(Bundle savedInstanceState) {
 		super.onCreate(savedInstanceState);
 
+		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+			if (AutofillHelper.isIntentContainsExtraAssistStructureKey(getIntent()))
+                consultationMode = true;
+		}
+
 		fileHistory = App.getFileHistory();
 
         setContentView(R.layout.file_selection);
-		if (fileHistory.hasRecentFiles()) {
-			recentMode = true;
-		} else {
-		    findViewById(R.id.file_listtop).setVisibility(View.INVISIBLE);
-        }
+        fileListTitle = findViewById(R.id.file_list_title);
 
 		Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
 		toolbar.setTitle(getString(R.string.app_name));
 		setSupportActionBar(toolbar);
 
-		mList = (ListView)findViewById(R.id.file_list);
+        openFileNameView = (EditText) findViewById(R.id.file_filename);
+        fileNameView = (FileNameView) findViewById(R.id.file_select);
 
-		mList.setOnItemClickListener(
-            new AdapterView.OnItemClickListener() {
-                public void onItemClick(AdapterView<?> parent, View v, int position, long id) {
-                    onListItemClick((ListView)parent, v, position, id);
+        // Set the initial value of the filename
+        String defaultPath = Environment.getExternalStorageDirectory().getAbsolutePath()
+                + getString(R.string.database_file_path_default)
+                + getString(R.string.database_file_name_default)
+                + getString(R.string.database_file_extension_default);
+        openFileNameView.setText(defaultPath);
+
+        RecyclerView mListFiles = (RecyclerView) findViewById(R.id.file_list);
+		mListFiles.setLayoutManager(new LinearLayoutManager(this));
+
+		// To retrieve info for AutoFill
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            autofillHelper = new AutofillHelper();
+            autofillHelper.retrieveAssistStructure(getIntent());
         }
-            }
-		);
 
 		// Open button
 		View openButton = findViewById(R.id.open_database);
 		openButton.setOnClickListener(new View.OnClickListener() {
 
 			public void onClick(View v) {
-				String fileName = Util.getEditText(FileSelectActivity.this,
-						R.id.file_filename);
+				String fileName = openFileNameView.getText().toString();
 				try {
-					PasswordActivity.Launch(FileSelectActivity.this, fileName);
+				    AssistStructure assistStructure = null;
+                    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+                        assistStructure = autofillHelper.retrieveAssistStructure(getIntent());
+                        if (assistStructure != null) {
+							PasswordActivity.launch(FileSelectActivity.this,
+                                    fileName,
+                                    assistStructure);
+						}
+					}
+					if (assistStructure == null) {
+                        PasswordActivity.launch(FileSelectActivity.this, fileName);
+                    }
 				}
 				catch (ContentFileNotFoundException e) {
 					Toast.makeText(FileSelectActivity.this,
@@ -145,7 +183,7 @@ public class FileSelectActivity extends StylishActivity implements
 				}
 				catch (FileNotFoundException e) {
 					Toast.makeText(FileSelectActivity.this,
-							R.string.FileNotFound, Toast.LENGTH_LONG).show();
+							R.string.file_not_found, Toast.LENGTH_LONG).show();
 				}
 			}
 		});
@@ -154,73 +192,32 @@ public class FileSelectActivity extends StylishActivity implements
 		View createButton = findViewById(R.id.create_database);
 		createButton.setOnClickListener(new View.OnClickListener() {
 			public void onClick(View v) {
-                CreateFileDialog createFileDialog = new CreateFileDialog();
-                createFileDialog.show(getSupportFragmentManager(), "createFileDialog");
+                FileSelectActivityPermissionsDispatcher
+                        .openCreateFileDialogFragmentWithPermissionCheck(FileSelectActivity.this);
 			}
 		});
 
+        keyFileHelper = new KeyFileHelper(this);
 		View browseButton = findViewById(R.id.browse_button);
-		browseButton.setOnClickListener(new View.OnClickListener() {
-			
-			public void onClick(View v) {
-				if (StorageAF.useStorageFramework(FileSelectActivity.this)) {
-					Intent i = new Intent(StorageAF.ACTION_OPEN_DOCUMENT);
-					i.addCategory(Intent.CATEGORY_OPENABLE);
-					i.setType("*/*");
-					i.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION|
-							Intent.FLAG_GRANT_WRITE_URI_PERMISSION|
-							Intent.FLAG_GRANT_PERSISTABLE_URI_PERMISSION);
-					startActivityForResult(i, OPEN_DOC);
+		browseButton.setOnClickListener(keyFileHelper.getOpenFileOnClickViewListener(
+		        new KeyFileHelper.ClickDataUriCallback() {
+            @Override
+            public Uri onRequestIntentFilePicker() {
+                return Uri.parse("file://" + openFileNameView.getText().toString());
             }
-				else {
-					Intent i;
-                    i = new Intent(Intent.ACTION_GET_CONTENT);
-					i.addCategory(Intent.CATEGORY_OPENABLE);
-					i.setType("*/*");
+        }));
 
-					try {
-						startActivityForResult(i, GET_CONTENT);
-					} catch (ActivityNotFoundException e) {
-						lookForOpenIntentsFilePicker();
-					} catch (SecurityException e) {
-						lookForOpenIntentsFilePicker();
-					}
-				}
-			}
+		// Construct adapter with listeners
+		mAdapter = new FileSelectAdapter(FileSelectActivity.this, fileHistory.getDbList());
+		mAdapter.setOnItemClickListener(this);
+		mAdapter.setFileSelectClearListener(this);
+		mAdapter.setFileInformationShowListener(this);
+		mListFiles.setAdapter(mAdapter);
 
-			private void lookForOpenIntentsFilePicker() {
-				if (Interaction.isIntentAvailable(FileSelectActivity.this, Intents.OPEN_INTENTS_FILE_BROWSE)) {
-					Intent i = new Intent(Intents.OPEN_INTENTS_FILE_BROWSE);
-					i.setData(Uri.parse("file://" + Util.getEditText(FileSelectActivity.this, R.id.file_filename)));
-					try {
-						startActivityForResult(i, FILE_BROWSE);
-					} catch (ActivityNotFoundException e) {
-						showBrowserDialog();
-					}
-				} else {
-					showBrowserDialog();
-				}
-			}
-			
-			private void showBrowserDialog() {
-				BrowserDialog diag = new BrowserDialog(FileSelectActivity.this);
-				diag.show();
-			}
-		});
-
-        // Set the initial value of the filename
-        openFileNameView = (EditText) findViewById(R.id.file_filename);
-        String defaultPath = Environment.getExternalStorageDirectory().getAbsolutePath()
-                + getString(R.string.database_file_path_default)
-                + getString(R.string.database_file_name_default)
-                + getString(R.string.database_file_extension_default);
-        openFileNameView.setText(defaultPath);
-
-		fillData();
-		
-		registerForContextMenu(mList);
-		
-		// Load default database
+		// Load default database if not an orientation change
+        if (! (savedInstanceState != null
+                && savedInstanceState.containsKey(EXTRA_STAY)
+                && savedInstanceState.getBoolean(EXTRA_STAY, false)) ) {
             SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
             String fileName = prefs.getString(PasswordActivity.KEY_DEFAULT_FILENAME, "");
 
@@ -235,21 +232,72 @@ public class FileSelectActivity extends StylishActivity implements
                     File db = new File(path);
 
                     if (db.exists()) {
+                        launchPasswordActivityWithPath(path);
+                    }
+                } else {
+                    if (dbUri != null)
+                        launchPasswordActivityWithPath(dbUri.toString());
+                }
+            }
+        }
+	}
+
+	private void launchPasswordActivityWithPath(String path) {
         try {
-						PasswordActivity.Launch(FileSelectActivity.this, path);
+            AssistStructure assistStructure = null;
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+                assistStructure = autofillHelper.getAssistStructure();
+                if (assistStructure != null) {
+					PasswordActivity.launch(FileSelectActivity.this,
+                            path,
+                            assistStructure);
+				}
+			}
+			if (assistStructure == null) {
+                PasswordActivity.launch(FileSelectActivity.this, path);
+            }
+            // Delete flickering for kitkat <=
+            if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP)
+                overridePendingTransition(0, 0);
         } catch (Exception e) {
             // Ignore exception
         }
     }
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+
+        fileNameView.updateExternalStorageWarning();
+        updateTitleFileListView();
+        mAdapter.notifyDataSetChanged();
     }
-			else {
-				try {
-					PasswordActivity.Launch(FileSelectActivity.this, dbUri.toString());
-				} catch (Exception e) {
-					// Ignore exception
+
+    @Override
+    protected void onSaveInstanceState(Bundle outState) {
+        super.onSaveInstanceState(outState);
+        // only to keep the current activity
+        outState.putBoolean(EXTRA_STAY, true);
     }
+
+    @Override
+    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
+        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
+        // NOTE: delegate the permission handling to generated method
+        FileSelectActivityPermissionsDispatcher.onRequestPermissionsResult(this, requestCode, grantResults);
     }
+
+    @NeedsPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE)
+    public void openCreateFileDialogFragment() {
+        CreateFileDialogFragment createFileDialogFragment = new CreateFileDialogFragment();
+        createFileDialogFragment.show(getSupportFragmentManager(), "createFileDialogFragment");
     }
+
+	private void updateTitleFileListView() {
+	    if(mAdapter.getItemCount() == 0)
+            fileListTitle.setVisibility(View.INVISIBLE);
+	    else
+            fileListTitle.setVisibility(View.VISIBLE);
     }
 
     /**
@@ -316,8 +364,8 @@ public class FileSelectActivity extends StylishActivity implements
 	public boolean onDefinePathDialogPositiveClick(Uri pathFile) {
         databaseUri = pathFile;
         if(createDatabaseFile(pathFile)) {
-            AssignMasterKeyDialog assignMasterKeyDialog = new AssignMasterKeyDialog();
-            assignMasterKeyDialog.show(getSupportFragmentManager(), "passwordDialog");
+            AssignMasterKeyDialogFragment assignMasterKeyDialogFragment = new AssignMasterKeyDialogFragment();
+            assignMasterKeyDialogFragment.show(getSupportFragmentManager(), "passwordDialog");
             return true;
         } else
             return false;
@@ -390,136 +438,112 @@ public class FileSelectActivity extends StylishActivity implements
 				// Add to recent files
 				fileHistory.createFile(mUri, getFilename());
                 mAdapter.notifyDataSetChanged();
-				GroupActivity.Launch(FileSelectActivity.this);
+                updateTitleFileListView();
+				GroupActivity.launch(FileSelectActivity.this);
 			}
 		}
 	}
 
-	private void fillData() {
-        mAdapter = new ArrayAdapter<>(FileSelectActivity.this, R.layout.file_row, R.id.file_filename, fileHistory.getDbList());
-        mList.setAdapter(mAdapter);
+	@Override
+	public void onFileItemOpenListener(int itemPosition) {
+		new OpenFileHistoryAsyncTask(new OpenFileHistoryAsyncTask.AfterOpenFileHistoryListener() {
+			@Override
+			public void afterOpenFile(String fileName, String keyFile) {
+				try {
+				    AssistStructure assistStructure = null;
+                    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+                        assistStructure = autofillHelper.getAssistStructure();
+				        if (assistStructure != null) {
+							PasswordActivity.launch(FileSelectActivity.this,
+                                    fileName, keyFile, assistStructure);
+						}
+					}
+					if (assistStructure == null) {
+                        PasswordActivity.launch(FileSelectActivity.this, fileName, keyFile);
+                    }
+				} catch (ContentFileNotFoundException e) {
+					Toast.makeText(FileSelectActivity.this,
+							R.string.file_not_found_content, Toast.LENGTH_LONG)
+							.show();
+				} catch (FileNotFoundException e) {
+					Toast.makeText(FileSelectActivity.this,
+							R.string.file_not_found, Toast.LENGTH_LONG)
+							.show();
+				}
+				updateTitleFileListView();
+			}
+		}, fileHistory).execute(itemPosition);
 	}
 
-	protected void onListItemClick(ListView l, View v, int position, long id) {
-		new OpenFileHistoryAsyncTask(this, fileHistory).execute(position);
+    @Override
+    public void onClickFileInformation(FileSelectBean fileSelectBean) {
+	    if (fileSelectBean != null) {
+            FileInformationDialogFragment fileInformationDialogFragment =
+                    FileInformationDialogFragment.newInstance(fileSelectBean);
+            fileInformationDialogFragment.show(getSupportFragmentManager(), "fileInformation");
+        }
+    }
+
+    @Override
+    public boolean onFileSelectClearListener(final FileSelectBean fileSelectBean) {
+        new DeleteFileHistoryAsyncTask(new DeleteFileHistoryAsyncTask.AfterDeleteFileHistoryListener() {
+            @Override
+            public void afterDeleteFile() {
+                fileHistory.deleteFile(fileSelectBean.getFileUri());
+                mAdapter.notifyDataSetChanged();
+                updateTitleFileListView();
+            }
+        }, fileHistory, mAdapter).execute(fileSelectBean);
+        return true;
     }
 
 	@Override
 	protected void onActivityResult(int requestCode, int resultCode, Intent data) {
 		super.onActivityResult(requestCode, resultCode, data);
 
-		fillData();
-		
-		String filename = null;
-		if (requestCode == FILE_BROWSE && resultCode == RESULT_OK) {
-			filename = data.getDataString();
-			if (filename != null) {
-				if (filename.startsWith("file://")) {
-					filename = filename.substring(7);
+		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+			AutofillHelper.onActivityResultSetResultAndFinish(this, requestCode, resultCode, data);
 		}
 
-				filename = URLDecoder.decode(filename);
-			}
-			
-		}
-		else if ((requestCode == GET_CONTENT || requestCode == OPEN_DOC) && resultCode == RESULT_OK) {
-			if (data != null) {
-				Uri uri = data.getData();
+		keyFileHelper.onActivityResultCallback(requestCode, resultCode, data,
+                new KeyFileHelper.KeyFileCallback() {
+            @Override
+            public void onKeyFileResultCallback(Uri uri) {
                 if (uri != null) {
-					if (StorageAF.useStorageFramework(this)) {
-						try {
-							// try to persist read and write permissions
-							ContentResolver resolver = getContentResolver();
-							ContentResolverCompat.takePersistableUriPermission(resolver, uri, Intent.FLAG_GRANT_READ_URI_PERMISSION);
-							ContentResolverCompat.takePersistableUriPermission(resolver, uri, Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
-						} catch (Exception e) {
-							// nop
-						}
-					}
-					if (requestCode == GET_CONTENT) {
-						uri = UriUtil.translate(this, uri);
-					}
-					filename = uri.toString();
-				}
-			}
-		}
-
-		if (filename != null) {
+                    String filename = uri.toString();
                     openFileNameView.setText(filename);
                 }
             }
+        });
+	}
 
+    @OnShowRationale(Manifest.permission.WRITE_EXTERNAL_STORAGE)
+    void showRationaleForExternalStorage(final PermissionRequest request) {
+        new AlertDialog.Builder(this)
+                .setMessage(R.string.permission_external_storage_rationale_write_database)
+                .setPositiveButton(R.string.allow, new DialogInterface.OnClickListener() {
                     @Override
-	protected void onResume() {
-		super.onResume();
-
-		// check for storage permission
-		checkStoragePermission();
-		
-		// Check to see if we need to change modes
-		if ( fileHistory.hasRecentFiles() != recentMode ) {
-			// Restart the activity
-			Intent intent = getIntent();
-			startActivity(intent);
-			finish();
+                    public void onClick(DialogInterface dialog, int which) {
+                        request.proceed();
                     }
-		
-		FileNameView fnv = (FileNameView) findViewById(R.id.file_select);
-		fnv.updateExternalStorageWarning();
-	}
-
-	private void checkStoragePermission() {
-		// Here, thisActivity is the current activity
-		if (ContextCompat.checkSelfPermission(FileSelectActivity.this,
-											  Manifest.permission.WRITE_EXTERNAL_STORAGE)
-				!= PackageManager.PERMISSION_GRANTED) {
-
-			// Should we show an explanation?
-			//if (ActivityCompat.shouldShowRequestPermissionRationale(FileSelectActivity.this,
-			//														Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
-
-				// Show an explanation to the user *asynchronously* -- don't block
-				// this thread waiting for the user's response! After the user
-				// sees the explanation, try again to request the permission.
-
-			//} else {
-
-				// No explanation needed, we can request the permission.
-
-				ActivityCompat.requestPermissions(FileSelectActivity.this,
-												  new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE},
-												  MY_PERMISSIONS_REQUEST_EXTERNAL_STORAGE);
-
-				// MY_PERMISSIONS_REQUEST_READ_CONTACTS is an
-				// app-defined int constant. The callback method gets the
-				// result of the request.
-			//}
-		}
-	}
-
+                })
+                .setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() {
                     @Override
-	public void onRequestPermissionsResult(int requestCode,
-										   String permissions[], int[] grantResults) {
-		switch (requestCode) {
-			case MY_PERMISSIONS_REQUEST_EXTERNAL_STORAGE: {
-				// If request is cancelled, the result arrays are empty.
-				if (grantResults.length > 0
-						&& grantResults[0] == PackageManager.PERMISSION_GRANTED) {
-
-					// permission was granted, yay! Do the
-					// contacts-related task you need to do.
-
-				} else {
-
-					// permission denied, boo! Disable the
-					// functionality that depends on this permission.
+                    public void onClick(DialogInterface dialog, int which) {
+                        request.cancel();
                     }
-				return;
+                })
+                .show();
     }
 
-			// other 'case' lines to check for other
-			// permissions this app might request
+    @OnPermissionDenied(Manifest.permission.WRITE_EXTERNAL_STORAGE)
+    void showDeniedForExternalStorage() {
+        Toast.makeText(this, R.string.permission_external_storage_denied, Toast.LENGTH_SHORT).show();
     }
+
+    @OnNeverAskAgain(Manifest.permission.WRITE_EXTERNAL_STORAGE)
+    void showNeverAskForExternalStorage() {
+        Toast.makeText(this, R.string.permission_external_storage_never_ask, Toast.LENGTH_SHORT).show();
     }
 
 	@Override
@@ -534,83 +558,4 @@ public class FileSelectActivity extends StylishActivity implements
 		return MenuUtil.onDefaultMenuOptionsItemSelected(this, item)
 				&& super.onOptionsItemSelected(item);
 	}
-
-	@Override
-	public void onCreateContextMenu(ContextMenu menu, View v,
-			ContextMenuInfo menuInfo) {
-		super.onCreateContextMenu(menu, v, menuInfo);
-		
-		menu.add(0, CMENU_CLEAR, 0, R.string.remove_from_filelist);
-	}
-
-	@Override
-	public boolean onContextItemSelected(MenuItem item) {
-		super.onContextItemSelected(item);
-		
-		if ( item.getItemId() == CMENU_CLEAR ) {
-			AdapterContextMenuInfo acmi = (AdapterContextMenuInfo) item.getMenuInfo();
-			
-			TextView tv = (TextView) acmi.targetView;
-			String filename = tv.getText().toString();
-            new DeleteFileHistoryAsyncTask(fileHistory, mAdapter).execute(filename);
-			return true;
-		}
-		
-		return false;
-	}
-
-	private static class OpenFileHistoryAsyncTask extends  AsyncTask<Integer, Void, Void> {
-
-	    private WeakReference<Activity> weakActivity;
-        private RecentFileHistory fileHistory;
-	    private String fileName;
-        private String keyFile;
-
-        OpenFileHistoryAsyncTask(Activity activity, RecentFileHistory fileHistory) {
-            this.weakActivity = new WeakReference<>(activity);
-            this.fileHistory = fileHistory;
-        }
-
-        protected Void doInBackground(Integer... args) {
-            int position = args[0];
-            fileName = fileHistory.getDatabaseAt(position);
-            keyFile = fileHistory.getKeyfileAt(position);
-            return null;
-        }
-
-        protected void onPostExecute(Void v) {
-            try {
-                PasswordActivity.Launch(weakActivity.get(), fileName, keyFile);
-            }
-            catch (ContentFileNotFoundException e) {
-                Toast.makeText(weakActivity.get(), R.string.file_not_found_content, Toast.LENGTH_LONG)
-                        .show();
-            }
-            catch (FileNotFoundException e) {
-                Toast.makeText(weakActivity.get(), R.string.FileNotFound, Toast.LENGTH_LONG)
-                        .show();
-            }
-        }
-    }
-
-	private static class DeleteFileHistoryAsyncTask extends AsyncTask<String, Void, Void> {
-
-	    private RecentFileHistory fileHistory;
-	    private BaseAdapter adapter;
-
-	    DeleteFileHistoryAsyncTask(RecentFileHistory fileHistory, BaseAdapter adapter) {
-	        this.fileHistory = fileHistory;
-	        this.adapter = adapter;
-        }
-
-        protected java.lang.Void doInBackground(String... args) {
-            fileHistory.deleteFile(Uri.parse(args[0]));
-            return null;
-        }
-
-        protected void onPostExecute(Void v) {
-            adapter.notifyDataSetChanged();
-        }
-    }
-
 }

app/src/main/java/com/keepassdroid/fileselect/FileSelectAdapter.java

@@ -0,0 +1,181 @@
+/*
+ * Copyright 2018 Jeremy Jamet / Kunzisoft.
+ *
+ * This file is part of KeePass DX.
+ *
+ *  KeePass DX is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  KeePass DX is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with KeePass DX.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+package com.keepassdroid.fileselect;
+
+import android.content.Context;
+import android.content.res.Resources;
+import android.net.Uri;
+import android.support.annotation.ColorInt;
+import android.support.v7.widget.RecyclerView;
+import android.util.TypedValue;
+import android.view.ContextMenu;
+import android.view.LayoutInflater;
+import android.view.Menu;
+import android.view.MenuItem;
+import android.view.View;
+import android.view.ViewGroup;
+
+import com.keepassdroid.settings.PreferencesUtil;
+import com.kunzisoft.keepass.R;
+
+import java.util.List;
+
+public class FileSelectAdapter extends RecyclerView.Adapter<FileSelectViewHolder> {
+
+    private static final int MENU_CLEAR = 1;
+
+    private Context context;
+    private LayoutInflater inflater;
+    private List<String> listFiles;
+    private FileItemOpenListener fileItemOpenListener;
+    private FileSelectClearListener fileSelectClearListener;
+    private FileInformationShowListener fileInformationShowListener;
+
+    private @ColorInt
+    int warningColor;
+
+    FileSelectAdapter(Context context, List<String> listFiles) {
+        this.inflater = LayoutInflater.from(context);
+        this.context = context;
+        this.listFiles = listFiles;
+
+        TypedValue typedValue = new TypedValue();
+        Resources.Theme theme = context.getTheme();
+        theme.resolveAttribute(R.attr.colorAccentCompat, typedValue, true);
+        warningColor = typedValue.data;
+    }
+
+    @Override
+    public FileSelectViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
+        View view = inflater.inflate(R.layout.file_row, parent, false);
+        return new FileSelectViewHolder(view);
+    }
+
+    @Override
+    public void onBindViewHolder(FileSelectViewHolder holder, int position) {
+        FileSelectBean fileSelectBean = new FileSelectBean(context, listFiles.get(position));
+        // Context menu creation
+        holder.fileContainer.setOnCreateContextMenuListener(new ContextMenuBuilder(fileSelectBean));
+        // Click item to open file
+        if (fileItemOpenListener != null)
+            holder.fileContainer.setOnClickListener(new FileItemClickListener(position));
+        // Assign file name
+        if (PreferencesUtil.isFullFilePathEnable(context))
+            holder.fileName.setText(Uri.decode(fileSelectBean.getFileUri().toString()));
+        else
+            holder.fileName.setText(fileSelectBean.getFileName());
+        holder.fileName.setTextSize(PreferencesUtil.getListTextSize(context));
+        // Set warning
+        if (fileSelectBean.notFound()) {
+            holder.fileInformation.setColorFilter(
+                    warningColor,
+                    android.graphics.PorterDuff.Mode.MULTIPLY);
+        }
+        // Click on information
+        if (fileInformationShowListener != null)
+            holder.fileInformation.setOnClickListener(new FileInformationClickListener(fileSelectBean));
+    }
+
+    @Override
+    public int getItemCount() {
+        return listFiles.size();
+    }
+
+    void setOnItemClickListener(FileItemOpenListener fileItemOpenListener) {
+        this.fileItemOpenListener = fileItemOpenListener;
+    }
+
+    void setFileSelectClearListener(FileSelectClearListener fileSelectClearListener) {
+        this.fileSelectClearListener = fileSelectClearListener;
+    }
+
+    void setFileInformationShowListener(FileInformationShowListener fileInformationShowListener) {
+        this.fileInformationShowListener = fileInformationShowListener;
+    }
+
+    public interface FileItemOpenListener {
+        void onFileItemOpenListener(int itemPosition);
+    }
+
+    public interface FileSelectClearListener {
+        boolean onFileSelectClearListener(FileSelectBean fileSelectBean);
+    }
+
+    public interface FileInformationShowListener {
+        void onClickFileInformation(FileSelectBean fileSelectBean);
+    }
+
+    private class FileItemClickListener implements View.OnClickListener {
+
+        private int position;
+
+        FileItemClickListener(int position) {
+            this.position = position;
+        }
+
+        @Override
+        public void onClick(View v) {
+            fileItemOpenListener.onFileItemOpenListener(position);
+        }
+    }
+
+    private class FileInformationClickListener implements View.OnClickListener {
+
+        private FileSelectBean fileSelectBean;
+
+        FileInformationClickListener(FileSelectBean fileSelectBean) {
+            this.fileSelectBean = fileSelectBean;
+        }
+
+        @Override
+        public void onClick(View view) {
+            fileInformationShowListener.onClickFileInformation(fileSelectBean);
+        }
+    }
+
+    private class ContextMenuBuilder implements View.OnCreateContextMenuListener {
+
+        private FileSelectBean fileSelectBean;
+
+        public ContextMenuBuilder(FileSelectBean fileSelectBean) {
+            this.fileSelectBean = fileSelectBean;
+        }
+
+        @Override
+        public void onCreateContextMenu(ContextMenu contextMenu, View view, ContextMenu.ContextMenuInfo contextMenuInfo) {
+            MenuItem clearMenu = contextMenu.add(Menu.NONE, MENU_CLEAR, Menu.NONE, R.string.remove_from_filelist);
+            clearMenu.setOnMenuItemClickListener(mOnMyActionClickListener);
+        }
+
+        private MenuItem.OnMenuItemClickListener mOnMyActionClickListener = new MenuItem.OnMenuItemClickListener() {
+            @Override
+            public boolean onMenuItemClick(MenuItem item) {
+                if (fileSelectClearListener == null)
+                    return false;
+                switch ( item.getItemId() ) {
+                    case MENU_CLEAR:
+                        return fileSelectClearListener.onFileSelectClearListener(fileSelectBean);
+                    default:
+                        return false;
+                }
+            }
+        };
+    }
+}

app/src/main/java/com/keepassdroid/fileselect/FileSelectBean.java

@@ -0,0 +1,89 @@
+/*
+ * Copyright 2017 Jeremy Jamet / Kunzisoft.
+ *
+ * This file is part of KeePass DX.
+ *
+ *  KeePass DX is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  KeePass DX is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with KeePass DX.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+package com.keepassdroid.fileselect;
+
+import android.content.Context;
+import android.net.Uri;
+import android.support.v4.provider.DocumentFile;
+
+import java.io.File;
+import java.io.Serializable;
+import java.util.Date;
+
+public class FileSelectBean implements Serializable {
+
+    private static final String EXTERNAL_STORAGE_AUTHORITY = "com.android.externalstorage.documents";
+
+    private String fileName = "";
+    private Uri fileUri;
+    private Date lastModification = new Date();
+    private long size = 0;
+
+    public FileSelectBean(Context context, String pathFile) {
+        fileUri = Uri.parse(pathFile);
+        if (EXTERNAL_STORAGE_AUTHORITY.equals(fileUri.getAuthority())) {
+            DocumentFile file = DocumentFile.fromSingleUri(context, fileUri);
+            size = file.length();
+            fileName = file.getName();
+            lastModification = new Date(file.lastModified());
+        } else {
+            File file = new File(fileUri.getPath());
+            size = file.length();
+            fileName = file.getName();
+            lastModification = new Date(file.lastModified());
+        }
+    }
+
+    public boolean notFound() {
+        return getSize() == 0;
+    }
+
+    public String getFileName() {
+        return fileName;
+    }
+
+    public void setFileName(String fileName) {
+        this.fileName = fileName;
+    }
+
+    public Uri getFileUri() {
+        return fileUri;
+    }
+
+    public void setFileUri(Uri fileUri) {
+        this.fileUri = fileUri;
+    }
+
+    public Date getLastModification() {
+        return lastModification;
+    }
+
+    public void setLastModification(Date lastModification) {
+        this.lastModification = lastModification;
+    }
+
+    public long getSize() {
+        return size;
+    }
+
+    public void setSize(long size) {
+        this.size = size;
+    }
+}

app/src/main/java/com/keepassdroid/fileselect/FileSelectViewHolder.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017 Brian Pellin, Jeremy Jamet / Kunzisoft.
+ * Copyright 2018 Jeremy Jamet / Kunzisoft.
  *
  * This file is part of KeePass DX.
  *
@@ -17,29 +17,25 @@
  *  along with KeePass DX.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
-package com.keepassdroid.view;
+package com.keepassdroid.fileselect;
 
-import android.content.Context;
-import android.util.AttributeSet;
+import android.support.v7.widget.RecyclerView;
+import android.view.View;
+import android.widget.ImageView;
+import android.widget.TextView;
 
-public class GroupViewOnlyView extends GroupAddEntryView {
+import com.kunzisoft.keepass.R;
 
-	public GroupViewOnlyView(Context context) {
-		this(context, null);
+class FileSelectViewHolder extends RecyclerView.ViewHolder {
+
+    View fileContainer;
+    TextView fileName;
+    ImageView fileInformation;
+
+    FileSelectViewHolder(View itemView) {
+        super(itemView);
+        fileContainer = itemView.findViewById(R.id.file_container);
+        fileName = (TextView) itemView.findViewById(R.id.file_filename);
+        fileInformation = (ImageView) itemView.findViewById(R.id.file_information);
     }
-	
-	public GroupViewOnlyView(Context context, AttributeSet attrs) {
-		super(context, attrs);
-		
-		inflate(context);
-	}
-
-	@Override
-	protected void inflate(Context context) {
-		super.inflate(context);
-
-		// Hide the buttons
-		addButton.setVisibility(GONE);
-	}
-
 }

app/src/main/java/com/keepassdroid/fileselect/OpenFileHistoryAsyncTask.java

@@ -0,0 +1,50 @@
+/*
+ * Copyright 2018 Jeremy Jamet / Kunzisoft.
+ *
+ * This file is part of KeePass DX.
+ *
+ *  KeePass DX is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  KeePass DX is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with KeePass DX.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+package com.keepassdroid.fileselect;
+
+import android.os.AsyncTask;
+
+class OpenFileHistoryAsyncTask extends AsyncTask<Integer, Void, Void> {
+
+    private AfterOpenFileHistoryListener afterOpenFileHistoryListener;
+    private RecentFileHistory fileHistory;
+    private String fileName;
+    private String keyFile;
+
+    OpenFileHistoryAsyncTask(AfterOpenFileHistoryListener afterOpenFileHistoryListener, RecentFileHistory fileHistory) {
+        this.afterOpenFileHistoryListener = afterOpenFileHistoryListener;
+        this.fileHistory = fileHistory;
+    }
+
+    protected Void doInBackground(Integer... args) {
+        int position = args[0];
+        fileName = fileHistory.getDatabaseAt(position);
+        keyFile = fileHistory.getKeyfileAt(position);
+        return null;
+    }
+
+    protected void onPostExecute(Void v) {
+        afterOpenFileHistoryListener.afterOpenFile(fileName, keyFile);
+    }
+
+    public interface AfterOpenFileHistoryListener {
+        void afterOpenFile(String fileName, String keyFile);
+    }
+}

app/src/main/java/com/keepassdroid/fileselect/RecentFileHistory.java

@@ -19,14 +19,6 @@
  */
 package com.keepassdroid.fileselect;
 
-import java.io.File;
-import java.util.ArrayList;
-import java.util.List;
-
-import com.kunzisoft.keepass.R;
-import com.keepassdroid.compat.EditorCompat;
-import com.keepassdroid.utils.UriUtil;
-
 import android.content.Context;
 import android.content.SharedPreferences;
 import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
@@ -34,6 +26,14 @@ import android.database.Cursor;
 import android.net.Uri;
 import android.preference.PreferenceManager;
 
+import com.keepassdroid.compat.EditorCompat;
+import com.keepassdroid.utils.UriUtil;
+import com.kunzisoft.keepass.R;
+
+import java.io.File;
+import java.util.ArrayList;
+import java.util.List;
+
 public class RecentFileHistory {
 
     private static String DB_KEY = "recent_databases";

app/src/main/java/com/keepassdroid/fingerprint/FingerPrintHelper.java

@@ -20,7 +20,6 @@
 package com.keepassdroid.fingerprint;
 
 import android.annotation.SuppressLint;
-import android.annotation.TargetApi;
 import android.app.KeyguardManager;
 import android.content.Context;
 import android.os.Build;
@@ -32,18 +31,23 @@ import android.support.v4.hardware.fingerprint.FingerprintManagerCompat;
 import android.support.v4.os.CancellationSignal;
 import android.util.Base64;
 
-import com.keepassdroid.compat.BuildCompat;
-
+import java.io.IOException;
 import java.security.KeyStore;
+import java.security.KeyStoreException;
+import java.security.NoSuchAlgorithmException;
+import java.security.UnrecoverableKeyException;
+import java.security.cert.CertificateException;
 
+import javax.crypto.BadPaddingException;
 import javax.crypto.Cipher;
 import javax.crypto.KeyGenerator;
 import javax.crypto.SecretKey;
 import javax.crypto.spec.IvParameterSpec;
 
+@RequiresApi(api = Build.VERSION_CODES.M)
 public class FingerPrintHelper {
 
-    private static final String ALIAS_KEY = "example-key";
+    private static final String FINGERPRINT_KEYSTORE_KEY = "example-key";
 
     private FingerprintManagerCompat fingerprintManager;
     private KeyStore keyStore = null;
@@ -74,7 +78,7 @@ public class FingerPrintHelper {
     }
 
     public void stopListening() {
-        if (!isFingerprintInitialized()) {
+        if (!isFingerprintInitialized(false)) {
             return;
         }
         if (cancellationSignal != null) {
@@ -83,14 +87,6 @@ public class FingerPrintHelper {
         }
     }
 
-    public interface FingerPrintCallback {
-        void handleEncryptedResult(String value, String ivSpec);
-        void handleDecryptedResult(String value);
-        void onInvalidKeyException();
-        void onFingerprintException(Exception e);
-    }
-
-    @TargetApi(BuildCompat.VERSION_CODE_M)
     public FingerPrintHelper(
             final Context context,
             final FingerPrintCallback fingerPrintCallback) {
@@ -118,25 +114,29 @@ public class FingerPrintHelper {
                 setInitOk(true);
             } catch (final Exception e) {
                 setInitOk(false);
-                fingerPrintCallback.onFingerprintException(e);
+                fingerPrintCallback.onFingerPrintException(e);
             }
         }
     }
 
-    public boolean isFingerprintSupported(FingerprintManagerCompat fingerprintManager) {
-        return Build.VERSION.SDK_INT >= BuildCompat.VERSION_CODE_M
+    public static boolean isFingerprintSupported(FingerprintManagerCompat fingerprintManager) {
+        return fingerprintManager != null
                 && fingerprintManager.isHardwareDetected();
     }
 
     public boolean isFingerprintInitialized() {
+        return isFingerprintInitialized(true);
+    }
+
+    public boolean isFingerprintInitialized(boolean throwException) {
         boolean isFingerprintInit = hasEnrolledFingerprints() && initOk;
         if (!isFingerprintInit && fingerPrintCallback != null) {
-            fingerPrintCallback.onFingerprintException(new Exception("FingerPrint not initialized"));
+            if(throwException)
+                fingerPrintCallback.onFingerPrintException(new Exception("FingerPrint not initialized"));
         }
         return isFingerprintInit;
     }
 
-    @RequiresApi(api = Build.VERSION_CODES.M)
     public void initEncryptData() {
         if (!isFingerprintInitialized()) {
             return;
@@ -144,16 +144,16 @@ public class FingerPrintHelper {
         try {
             createNewKeyIfNeeded(false); // no need to keep deleting existing keys
             keyStore.load(null);
-            final SecretKey key = (SecretKey) keyStore.getKey(ALIAS_KEY, null);
+            final SecretKey key = (SecretKey) keyStore.getKey(FINGERPRINT_KEYSTORE_KEY, null);
             cipher.init(Cipher.ENCRYPT_MODE, key);
 
-            stopListening();
             startListening();
-
+        } catch (final UnrecoverableKeyException unrecoverableKeyException) {
+            deleteEntryKey();
         } catch (final KeyPermanentlyInvalidatedException invalidKeyException) {
-            fingerPrintCallback.onInvalidKeyException();
+            fingerPrintCallback.onInvalidKeyException(invalidKeyException);
         } catch (final Exception e) {
-            fingerPrintCallback.onFingerprintException(e);
+            fingerPrintCallback.onFingerPrintException(e);
         }
     }
 
@@ -164,7 +164,7 @@ public class FingerPrintHelper {
         try {
             // actual do encryption here
             byte[] encrypted = cipher.doFinal(value.getBytes());
-            final String encryptedValue = Base64.encodeToString(encrypted, 0 /* flags */);
+            final String encryptedValue = Base64.encodeToString(encrypted, Base64.DEFAULT);
 
             // passes updated iv spec on to callback so this can be stored for decryption
             final IvParameterSpec spec = cipher.getParameters().getParameterSpec(IvParameterSpec.class);
@@ -172,11 +172,10 @@ public class FingerPrintHelper {
             fingerPrintCallback.handleEncryptedResult(encryptedValue, ivSpecValue);
 
         } catch (final Exception e) {
-            fingerPrintCallback.onFingerprintException(e);
+            fingerPrintCallback.onFingerPrintException(e);
         }
     }
 
-    @RequiresApi(api = Build.VERSION_CODES.M)
     public void initDecryptData(final String ivSpecValue) {
         if (!isFingerprintInitialized()) {
             return;
@@ -184,20 +183,20 @@ public class FingerPrintHelper {
         try {
             createNewKeyIfNeeded(false);
             keyStore.load(null);
-            final SecretKey key = (SecretKey) keyStore.getKey(ALIAS_KEY, null);
+            final SecretKey key = (SecretKey) keyStore.getKey(FINGERPRINT_KEYSTORE_KEY, null);
 
             // important to restore spec here that was used for decryption
             final byte[] iv = Base64.decode(ivSpecValue, Base64.DEFAULT);
             final IvParameterSpec spec = new IvParameterSpec(iv);
             cipher.init(Cipher.DECRYPT_MODE, key, spec);
 
-            stopListening();
             startListening();
-
         } catch (final KeyPermanentlyInvalidatedException invalidKeyException) {
-            fingerPrintCallback.onInvalidKeyException();
+            fingerPrintCallback.onInvalidKeyException(invalidKeyException);
+        } catch (final UnrecoverableKeyException unrecoverableKeyException) {
+            deleteEntryKey();
         } catch (final Exception e) {
-            fingerPrintCallback.onFingerprintException(e);
+            fingerPrintCallback.onFingerPrintException(e);
         }
     }
 
@@ -207,14 +206,16 @@ public class FingerPrintHelper {
         }
         try {
             // actual decryption here
-            final byte[] encrypted = Base64.decode(encryptedValue, 0);
+            final byte[] encrypted = Base64.decode(encryptedValue, Base64.DEFAULT);
             byte[] decrypted = cipher.doFinal(encrypted);
             final String decryptedString = new String(decrypted);
 
             //final String encryptedString = Base64.encodeToString(encrypted, 0 /* flags */);
             fingerPrintCallback.handleDecryptedResult(decryptedString);
+        } catch (final BadPaddingException badPaddingException) {
+            fingerPrintCallback.onInvalidKeyException(badPaddingException);
         } catch (final Exception e) {
-            fingerPrintCallback.onFingerprintException(e);
+            fingerPrintCallback.onFingerPrintException(e);
         }
     }
 
@@ -226,18 +227,17 @@ public class FingerPrintHelper {
         try {
             keyStore.load(null);
             if (allowDeleteExisting
-                    && keyStore.containsAlias(ALIAS_KEY)) {
-
-                keyStore.deleteEntry(ALIAS_KEY);
+                    && keyStore.containsAlias(FINGERPRINT_KEYSTORE_KEY)) {
+                keyStore.deleteEntry(FINGERPRINT_KEYSTORE_KEY);
             }
 
             // Create new key if needed
-            if (!keyStore.containsAlias(ALIAS_KEY)) {
+            if (!keyStore.containsAlias(FINGERPRINT_KEYSTORE_KEY)) {
                 // Set the alias of the entry in Android KeyStore where the key will appear
                 // and the constrains (purposes) in the constructor of the Builder
                 keyGenerator.init(
                         new KeyGenParameterSpec.Builder(
-                                ALIAS_KEY,
+                                FINGERPRINT_KEYSTORE_KEY,
                                 KeyProperties.PURPOSE_ENCRYPT |
                                         KeyProperties.PURPOSE_DECRYPT)
                                 .setBlockModes(KeyProperties.BLOCK_MODE_CBC)
@@ -249,7 +249,21 @@ public class FingerPrintHelper {
                 keyGenerator.generateKey();
             }
         } catch (final Exception e) {
-            fingerPrintCallback.onFingerprintException(e);
+            fingerPrintCallback.onFingerPrintException(e);
+        }
+    }
+
+    public void deleteEntryKey() {
+        try {
+            keyStore.load(null);
+            keyStore.deleteEntry(FINGERPRINT_KEYSTORE_KEY);
+        } catch (KeyStoreException
+                    | CertificateException
+                    | NoSuchAlgorithmException
+                    | IOException
+                    | NullPointerException e) {
+            if (fingerPrintCallback != null)
+                fingerPrintCallback.onFingerPrintException(e);
         }
     }
 
@@ -257,8 +271,6 @@ public class FingerPrintHelper {
     public boolean hasEnrolledFingerprints() {
         // fingerprint hardware supported and api level OK
         return isFingerprintSupported(fingerprintManager)
-                && fingerprintManager != null
-                && fingerprintManager.isHardwareDetected()
                 // fingerprints enrolled
                 && fingerprintManager.hasEnrolledFingerprints()
                 // and lockscreen configured
@@ -269,4 +281,44 @@ public class FingerPrintHelper {
         this.initOk = initOk;
     }
 
+    /**
+     * Remove entry key in keystore
+     */
+    public static void deleteEntryKeyInKeystoreForFingerprints(final Context context,
+                                                               final FingerPrintErrorCallback fingerPrintCallback) {
+        FingerPrintHelper fingerPrintHelper = new FingerPrintHelper(
+                context, new FingerPrintCallback() {
+            @Override
+            public void handleEncryptedResult(String value, String ivSpec) {}
+
+            @Override
+            public void handleDecryptedResult(String value) {}
+
+            @Override
+            public void onInvalidKeyException(Exception e) {
+                fingerPrintCallback.onInvalidKeyException(e);
+            }
+
+            @Override
+            public void onFingerPrintException(Exception e) {
+                fingerPrintCallback.onFingerPrintException(e);
+            }
+        });
+        fingerPrintHelper.deleteEntryKey();
+    }
+
+    public interface FingerPrintErrorCallback {
+        void onInvalidKeyException(Exception e);
+        void onFingerPrintException(Exception e);
+    }
+
+    public interface FingerPrintCallback extends FingerPrintErrorCallback {
+        void handleEncryptedResult(String value, String ivSpec);
+        void handleDecryptedResult(String value);
+    }
+
+    public enum Mode {
+        NOT_CONFIGURED_MODE, STORE_MODE, OPEN_MODE
+    }
+
 }

app/src/main/java/com/keepassdroid/fragments/AssignMasterKeyDialogFragment.java

@@ -17,7 +17,7 @@
  *  along with KeePass DX.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
-package com.keepassdroid;
+package com.keepassdroid.fragments;
 
 import android.app.Dialog;
 import android.content.Context;
@@ -42,7 +42,7 @@ import com.keepassdroid.utils.UriUtil;
 import com.keepassdroid.view.KeyFileHelper;
 import com.kunzisoft.keepass.R;
 
-public class AssignMasterKeyDialog extends DialogFragment {
+public class AssignMasterKeyDialogFragment extends DialogFragment {
 
     private String masterPassword;
 	private Uri mKeyfile;
@@ -226,7 +226,7 @@ public class AssignMasterKeyDialog extends DialogFragment {
                             mListener.onAssignKeyDialogPositiveClick(
                                     passwordCheckBox.isChecked(), masterPassword,
                                     keyfileCheckBox.isChecked(), mKeyfile);
-                            AssignMasterKeyDialog.this.dismiss();
+                            AssignMasterKeyDialogFragment.this.dismiss();
                         }
                     }
                 })
@@ -244,7 +244,7 @@ public class AssignMasterKeyDialog extends DialogFragment {
                         mListener.onAssignKeyDialogPositiveClick(
                                 passwordCheckBox.isChecked(), masterPassword,
                                 keyfileCheckBox.isChecked(), mKeyfile);
-                        AssignMasterKeyDialog.this.dismiss();
+                        AssignMasterKeyDialogFragment.this.dismiss();
                     }
                 })
                 .setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() {

app/src/main/java/com/keepassdroid/fragments/CreateFileDialogFragment.java

@@ -17,7 +17,7 @@
  *  along with KeePass DX.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
-package com.keepassdroid;
+package com.keepassdroid.fragments;
 
 import android.app.Activity;
 import android.app.Dialog;
@@ -38,6 +38,7 @@ import android.widget.Button;
 import android.widget.EditText;
 import android.widget.Spinner;
 
+import com.keepassdroid.fileselect.FilePickerStylishActivity;
 import com.keepassdroid.utils.UriUtil;
 import com.kunzisoft.keepass.R;
 import com.nononsenseapps.filepicker.FilePickerActivity;
@@ -45,7 +46,7 @@ import com.nononsenseapps.filepicker.Utils;
 
 import java.io.File;
 
-public class CreateFileDialog extends DialogFragment implements AdapterView.OnItemSelectedListener{
+public class CreateFileDialogFragment extends DialogFragment implements AdapterView.OnItemSelectedListener{
 
     private final int FILE_CODE = 3853;
 
@@ -134,7 +135,7 @@ public class CreateFileDialog extends DialogFragment implements AdapterView.OnIt
                     @Override
                     public void onClick(final View v) {
                         if(mListener.onDefinePathDialogPositiveClick(buildPath()))
-                            CreateFileDialog.this.dismiss();
+                            CreateFileDialogFragment.this.dismiss();
                     }
                 });
                 Button negativeButton = ((AlertDialog) dialog).getButton(DialogInterface.BUTTON_NEGATIVE);
@@ -142,7 +143,7 @@ public class CreateFileDialog extends DialogFragment implements AdapterView.OnIt
                     @Override
                     public void onClick(final View v) {
                         if(mListener.onDefinePathDialogNegativeClick(buildPath()))
-                            CreateFileDialog.this.dismiss();
+                            CreateFileDialogFragment.this.dismiss();
                     }
                 });
             }

app/src/main/java/com/keepassdroid/fragments/GeneratePasswordDialogFragment.java

@@ -17,7 +17,7 @@
  *  along with KeePass DX.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
-package com.keepassdroid;
+package com.keepassdroid.fragments;
 
 import android.app.Dialog;
 import android.content.Context;
@@ -36,12 +36,12 @@ import android.widget.SeekBar;
 import android.widget.Toast;
 
 import com.keepassdroid.password.PasswordGenerator;
-import com.keepassdroid.settings.PrefsUtil;
+import com.keepassdroid.settings.PreferencesUtil;
 import com.kunzisoft.keepass.R;
 
 import java.util.Set;
 
-public class GeneratePasswordFragment extends DialogFragment {
+public class GeneratePasswordDialogFragment extends DialogFragment {
 
     public static final String KEY_PASSWORD_ID = "KEY_PASSWORD_ID";
 
@@ -102,7 +102,7 @@ public class GeneratePasswordFragment extends DialogFragment {
             @Override
             public void onStopTrackingTouch(SeekBar seekBar) {}
         });
-        seekBar.setProgress(PrefsUtil.getDefaultPasswordLength(getContext().getApplicationContext()));
+        seekBar.setProgress(PreferencesUtil.getDefaultPasswordLength(getContext().getApplicationContext()));
 
         Button genPassButton = (Button) root.findViewById(R.id.generate_password_button);
         genPassButton.setOnClickListener(new OnClickListener() {
@@ -149,7 +149,7 @@ public class GeneratePasswordFragment extends DialogFragment {
         bracketsBox.setChecked(false);
 
         Set<String> defaultPasswordChars =
-                PrefsUtil.getDefaultPasswordCharacters(getContext().getApplicationContext());
+                PreferencesUtil.getDefaultPasswordCharacters(getContext().getApplicationContext());
         for(String passwordChar : defaultPasswordChars) {
             if (passwordChar.equals(getString(R.string.value_password_uppercase))) {
                 uppercaseBox.setChecked(true);

app/src/main/java/com/keepassdroid/fragments/GroupEditDialogFragment.java

@@ -17,7 +17,7 @@
  *  along with KeePass DX.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
-package com.keepassdroid;
+package com.keepassdroid.fragments;
 
 import android.app.Dialog;
 import android.content.Context;
@@ -32,56 +32,78 @@ import android.widget.ImageButton;
 import android.widget.TextView;
 import android.widget.Toast;
 
-import com.kunzisoft.keepass.R;
+import com.keepassdroid.database.PwNode;
 import com.keepassdroid.icons.Icons;
+import com.kunzisoft.keepass.R;
 
-public class GroupEditFragment extends DialogFragment
-        implements IconPickerFragment.IconPickerListener {
+public class GroupEditDialogFragment extends DialogFragment
+        implements IconPickerDialogFragment.IconPickerListener {
+
+    public static final String TAG_CREATE_GROUP = "TAG_CREATE_GROUP";
 
 	public static final String KEY_NAME = "name";
 	public static final String KEY_ICON_ID = "icon_id";
 
-	private CreateGroupListener createGroupListener;
+	private EditGroupListener editGroupListener;
 
+	private TextView nameField;
+    private ImageButton iconButton;
 	private int mSelectedIconID;
     private View root;
 
+    public static GroupEditDialogFragment build(PwNode group) {
+        Bundle bundle = new Bundle();
+        bundle.putString(KEY_NAME, group.getDisplayTitle());
+        // TODO Change
+        bundle.putInt(KEY_ICON_ID, group.getIcon().hashCode());
+        GroupEditDialogFragment fragment = new GroupEditDialogFragment();
+        fragment.setArguments(bundle);
+        return fragment;
+    }
+
     @Override
     public void onAttach(Context context) {
         super.onAttach(context);
         // Verify that the host activity implements the callback interface
         try {
             // Instantiate the NoticeDialogListener so we can send events to the host
-            createGroupListener = (CreateGroupListener) context;
-            createGroupListener = (CreateGroupListener) context;
+            editGroupListener = (EditGroupListener) context;
         } catch (ClassCastException e) {
             // The activity doesn't implement the interface, throw exception
             throw new ClassCastException(context.toString()
-                    + " must implement " + GroupEditFragment.class.getName());
+                    + " must implement " + GroupEditDialogFragment.class.getName());
         }
     }
 
     @NonNull
     @Override
     public Dialog onCreateDialog(Bundle savedInstanceState) {
-        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
-        LayoutInflater inflater = getActivity().getLayoutInflater();
 
+        LayoutInflater inflater = getActivity().getLayoutInflater();
         root = inflater.inflate(R.layout.group_edit, null);
+        nameField = (TextView) root.findViewById(R.id.group_name);
+        iconButton = (ImageButton) root.findViewById(R.id.icon_button);
+
+        if (getArguments() != null
+                && getArguments().containsKey(KEY_NAME)
+                && getArguments().containsKey(KEY_ICON_ID)) {
+            nameField.setText(getArguments().getString(KEY_NAME));
+            populateIcon(getArguments().getInt(KEY_ICON_ID));
+        }
+
+        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
         builder.setView(root)
                 .setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
                     @Override
                     public void onClick(DialogInterface dialog, int id) {
-                        TextView nameField = (TextView) root.findViewById(R.id.group_name);
                         String name = nameField.getText().toString();
-
                         if ( name.length() > 0 ) {
                             Bundle bundle = new Bundle();
                             bundle.putString(KEY_NAME, name);
                             bundle.putInt(KEY_ICON_ID, mSelectedIconID);
-                            createGroupListener.approveCreateGroup(bundle);
+                            editGroupListener.approveEditGroup(bundle);
 
-                            GroupEditFragment.this.getDialog().cancel();
+                            GroupEditDialogFragment.this.getDialog().cancel();
                         }
                         else {
                             Toast.makeText(getContext(), R.string.error_no_name, Toast.LENGTH_LONG).show();
@@ -91,32 +113,35 @@ public class GroupEditFragment extends DialogFragment
                 .setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() {
                     public void onClick(DialogInterface dialog, int id) {
                         Bundle bundle = new Bundle();
-                        createGroupListener.cancelCreateGroup(bundle);
+                        editGroupListener.cancelEditGroup(bundle);
 
-                        GroupEditFragment.this.getDialog().cancel();
+                        GroupEditDialogFragment.this.getDialog().cancel();
                     }
                 });
 
         final ImageButton iconButton = (ImageButton) root.findViewById(R.id.icon_button);
         iconButton.setOnClickListener(new View.OnClickListener() {
             public void onClick(View v) {
-                IconPickerFragment iconPickerFragment = new IconPickerFragment();
-                iconPickerFragment.show(getFragmentManager(), "IconPickerFragment");
+                IconPickerDialogFragment iconPickerDialogFragment = new IconPickerDialogFragment();
+                iconPickerDialogFragment.show(getFragmentManager(), "IconPickerDialogFragment");
             }
         });
 
         return builder.create();
     }
 
-    @Override
-    public void iconPicked(Bundle bundle) {
-        mSelectedIconID = bundle.getInt(IconPickerFragment.KEY_ICON_ID);
-        ImageButton currIconButton = (ImageButton) root.findViewById(R.id.icon_button);
-        currIconButton.setImageResource(Icons.iconToResId(mSelectedIconID));
+    private void populateIcon(int iconId) {
+        iconButton.setImageResource(Icons.iconToResId(iconId));
     }
 
-    public interface CreateGroupListener {
-        void approveCreateGroup(Bundle bundle);
-        void cancelCreateGroup(Bundle bundle);
+    @Override
+    public void iconPicked(Bundle bundle) {
+        mSelectedIconID = bundle.getInt(IconPickerDialogFragment.KEY_ICON_ID);
+        populateIcon(mSelectedIconID);
+    }
+
+    public interface EditGroupListener {
+        void approveEditGroup(Bundle bundle);
+        void cancelEditGroup(Bundle bundle);
     }
 }

app/src/main/java/com/keepassdroid/fragments/IconPickerDialogFragment.java

@@ -17,7 +17,7 @@
  *  along with KeePass DX.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
-package com.keepassdroid;
+package com.keepassdroid.fragments;
 
 import android.app.Dialog;
 import android.content.Context;
@@ -41,13 +41,13 @@ import com.keepassdroid.icons.Icons;
 import com.keepassdroid.stylish.StylishActivity;
 
 
-public class IconPickerFragment extends DialogFragment {
+public class IconPickerDialogFragment extends DialogFragment {
 	public static final String KEY_ICON_ID = "icon_id";
 	private IconPickerListener iconPickerListener;
 
-	public static void Launch(StylishActivity activity)	{
+	public static void launch(StylishActivity activity)	{
         // Create an instance of the dialog fragment and show it
-        IconPickerFragment dialog = new IconPickerFragment();
+        IconPickerDialogFragment dialog = new IconPickerDialogFragment();
         dialog.show(activity.getSupportFragmentManager(), "NoticeDialogFragment");
 	}
 
@@ -90,7 +90,7 @@ public class IconPickerFragment extends DialogFragment {
 
         builder.setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() {
             public void onClick(DialogInterface dialog, int id) {
-                IconPickerFragment.this.getDialog().cancel();
+                IconPickerDialogFragment.this.getDialog().cancel();
             }
         });
 

app/src/main/java/com/keepassdroid/fragments/SortDialogFragment.java

@@ -0,0 +1,235 @@
+/*
+ * Copyright 2018 Jeremy Jamet / Kunzisoft.
+ *
+ * This file is part of KeePass DX.
+ *
+ *  KeePass DX is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  KeePass DX is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with KeePass DX.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+package com.keepassdroid.fragments;
+
+import android.app.Dialog;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.os.Bundle;
+import android.support.annotation.IdRes;
+import android.support.annotation.NonNull;
+import android.support.v4.app.DialogFragment;
+import android.support.v7.app.AlertDialog;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.widget.CompoundButton;
+import android.widget.RadioGroup;
+
+import com.keepassdroid.database.SortNodeEnum;
+import com.kunzisoft.keepass.R;
+
+public class SortDialogFragment extends DialogFragment {
+
+    private static final String SORT_NODE_ENUM_BUNDLE_KEY = "SORT_NODE_ENUM_BUNDLE_KEY";
+    private static final String SORT_ASCENDING_BUNDLE_KEY = "SORT_ASCENDING_BUNDLE_KEY";
+    private static final String SORT_GROUPS_BEFORE_BUNDLE_KEY = "SORT_GROUPS_BEFORE_BUNDLE_KEY";
+    private static final String SORT_RECYCLE_BIN_BOTTOM_BUNDLE_KEY = "SORT_RECYCLE_BIN_BOTTOM_BUNDLE_KEY";
+
+    private SortSelectionListener mListener;
+
+    private SortNodeEnum sortNodeEnum;
+    private @IdRes
+    int mCheckedId;
+    private boolean mGroupsBefore;
+    private boolean mAscending;
+    private boolean mRecycleBinBottom;
+
+    private static Bundle buildBundle(SortNodeEnum sortNodeEnum,
+                               boolean ascending,
+                               boolean groupsBefore) {
+        Bundle bundle = new Bundle();
+        bundle.putString(SORT_NODE_ENUM_BUNDLE_KEY, sortNodeEnum.name());
+        bundle.putBoolean(SORT_ASCENDING_BUNDLE_KEY, ascending);
+        bundle.putBoolean(SORT_GROUPS_BEFORE_BUNDLE_KEY, groupsBefore);
+        return bundle;
+    }
+
+    public static SortDialogFragment getInstance(SortNodeEnum sortNodeEnum,
+                                                 boolean ascending,
+                                                 boolean groupsBefore) {
+        Bundle bundle = buildBundle(sortNodeEnum, ascending, groupsBefore);
+        SortDialogFragment fragment = new SortDialogFragment();
+        fragment.setArguments(bundle);
+        return fragment;
+    }
+
+    public static SortDialogFragment getInstance(SortNodeEnum sortNodeEnum,
+                                                 boolean ascending,
+                                                 boolean groupsBefore,
+                                                 boolean recycleBinBottom) {
+        Bundle bundle = buildBundle(sortNodeEnum, ascending, groupsBefore);
+        bundle.putBoolean(SORT_RECYCLE_BIN_BOTTOM_BUNDLE_KEY, recycleBinBottom);
+        SortDialogFragment fragment = new SortDialogFragment();
+        fragment.setArguments(bundle);
+        return fragment;
+    }
+
+    @Override
+    public void onAttach(Context context) {
+        super.onAttach(context);
+        try {
+            mListener = (SortSelectionListener) context;
+        } catch (ClassCastException e) {
+            throw new ClassCastException(context.toString()
+                    + " must implement " + SortSelectionListener.class.getName());
+        }
+    }
+
+    @NonNull
+    @Override
+    public Dialog onCreateDialog(Bundle savedInstanceState) {
+        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
+        LayoutInflater inflater = getActivity().getLayoutInflater();
+
+        sortNodeEnum = SortNodeEnum.TITLE;
+        mAscending = true;
+        mGroupsBefore = true;
+        boolean recycleBinAllowed = false;
+        mRecycleBinBottom = true;
+
+        if (getArguments() != null) {
+            if (getArguments().containsKey(SORT_NODE_ENUM_BUNDLE_KEY))
+                sortNodeEnum = SortNodeEnum.valueOf(getArguments().getString(SORT_NODE_ENUM_BUNDLE_KEY));
+            if (getArguments().containsKey(SORT_ASCENDING_BUNDLE_KEY))
+                mAscending = getArguments().getBoolean(SORT_ASCENDING_BUNDLE_KEY);
+            if (getArguments().containsKey(SORT_GROUPS_BEFORE_BUNDLE_KEY))
+                mGroupsBefore = getArguments().getBoolean(SORT_GROUPS_BEFORE_BUNDLE_KEY);
+            if (getArguments().containsKey(SORT_RECYCLE_BIN_BOTTOM_BUNDLE_KEY)) {
+                recycleBinAllowed = true;
+                mRecycleBinBottom = getArguments().getBoolean(SORT_RECYCLE_BIN_BOTTOM_BUNDLE_KEY);
+            }
+        }
+
+        mCheckedId = retrieveViewFromEnum(sortNodeEnum);
+
+        View rootView = inflater.inflate(R.layout.sort_selection, null);
+        builder.setTitle(R.string.sort_menu);
+        builder.setView(rootView)
+                // Add action buttons
+                .setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
+                    @Override
+                    public void onClick(DialogInterface dialog, int id) {
+                        mListener.onSortSelected(sortNodeEnum, mAscending, mGroupsBefore, mRecycleBinBottom);
+                    }
+                })
+                .setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() {
+                    public void onClick(DialogInterface dialog, int id) {}
+                });
+
+        CompoundButton ascendingView = (CompoundButton) rootView.findViewById(R.id.sort_selection_ascending);
+        // Check if is ascending or descending
+        ascendingView.setChecked(mAscending);
+        ascendingView.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
+            @Override
+            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
+                mAscending = isChecked;
+            }
+        });
+
+        CompoundButton groupsBeforeView = (CompoundButton) rootView.findViewById(R.id.sort_selection_groups_before);
+        // Check if groups before
+        groupsBeforeView.setChecked(mGroupsBefore);
+        groupsBeforeView.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
+            @Override
+            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
+                mGroupsBefore = isChecked;
+            }
+        });
+
+        CompoundButton recycleBinBottomView = (CompoundButton) rootView.findViewById(R.id.sort_selection_recycle_bin_bottom);
+        if (!recycleBinAllowed) {
+            recycleBinBottomView.setVisibility(View.GONE);
+        } else {
+            // Check if recycle bin at the bottom
+            recycleBinBottomView.setChecked(mRecycleBinBottom);
+            recycleBinBottomView.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
+                @Override
+                public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
+                    mRecycleBinBottom = isChecked;
+                }
+            });
+        }
+
+        RadioGroup sortSelectionRadioGroupView = (RadioGroup) rootView.findViewById(R.id.sort_selection_radio_group);
+        // Check value by default
+        sortSelectionRadioGroupView.check(mCheckedId);
+        sortSelectionRadioGroupView.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
+            @Override
+            public void onCheckedChanged(RadioGroup group, int checkedId) {
+                sortNodeEnum = retrieveSortEnumFromViewId(checkedId);
+            }
+        });
+
+        return builder.create();
+    }
+
+    private @IdRes
+    int retrieveViewFromEnum(SortNodeEnum sortNodeEnum) {
+        switch (sortNodeEnum) {
+            case DB:
+                return R.id.sort_selection_db;
+            default:
+            case TITLE:
+                return R.id.sort_selection_title;
+            case USERNAME:
+                return R.id.sort_selection_username;
+            case CREATION_TIME:
+                return R.id.sort_selection_creation_time;
+            case LAST_MODIFY_TIME:
+                return R.id.sort_selection_last_modify_time;
+            case LAST_ACCESS_TIME:
+                return R.id.sort_selection_last_access_time;
+        }
+    }
+
+    private SortNodeEnum retrieveSortEnumFromViewId(@IdRes int checkedId) {
+        SortNodeEnum sortNodeEnum;
+        // Change enum
+        switch (checkedId) {
+            case R.id.sort_selection_db:
+                sortNodeEnum = SortNodeEnum.DB;
+                break;
+            default:
+            case R.id.sort_selection_title:
+                sortNodeEnum = SortNodeEnum.TITLE;
+                break;
+            case R.id.sort_selection_username:
+                sortNodeEnum = SortNodeEnum.USERNAME;
+                break;
+            case R.id.sort_selection_creation_time:
+                sortNodeEnum = SortNodeEnum.CREATION_TIME;
+                break;
+            case R.id.sort_selection_last_modify_time:
+                sortNodeEnum = SortNodeEnum.LAST_MODIFY_TIME;
+                break;
+            case R.id.sort_selection_last_access_time:
+                sortNodeEnum = SortNodeEnum.LAST_ACCESS_TIME;
+                break;
+        }
+        return sortNodeEnum;
+    }
+
+    public interface SortSelectionListener {
+        void onSortSelected(SortNodeEnum sortNodeEnum,
+                            boolean ascending,
+                            boolean groupsBefore,
+                            boolean recycleBinBottom);
+    }
+}

app/src/main/java/com/keepassdroid/fragments/UnavailableFeatureDialogFragment.java

@@ -1,4 +1,4 @@
-package com.keepassdroid;
+package com.keepassdroid.fragments;
 
 import android.app.Dialog;
 import android.content.DialogInterface;
@@ -10,13 +10,13 @@ import android.support.v7.app.AlertDialog;
 
 import com.kunzisoft.keepass.R;
 
-public class UnavailableFeatureDialog extends DialogFragment {
+public class UnavailableFeatureDialogFragment extends DialogFragment {
 
     private static final String MIN_REQUIRED_VERSION_ARG = "MIN_REQUIRED_VERSION_ARG";
     private int minVersionRequired = Build.VERSION_CODES.M;
 
-    public static UnavailableFeatureDialog getInstance(int minVersionRequired) {
-        UnavailableFeatureDialog fragment = new UnavailableFeatureDialog();
+    public static UnavailableFeatureDialogFragment getInstance(int minVersionRequired) {
+        UnavailableFeatureDialogFragment fragment = new UnavailableFeatureDialogFragment();
         Bundle args = new Bundle();
         args.putInt(MIN_REQUIRED_VERSION_ARG, minVersionRequired);
         fragment.setArguments(args);
@@ -30,7 +30,16 @@ public class UnavailableFeatureDialog extends DialogFragment {
             minVersionRequired = getArguments().getInt(MIN_REQUIRED_VERSION_ARG);
 
         AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
-        builder.setMessage(getString(R.string.unavailable_feature_text, Build.VERSION.SDK_INT, minVersionRequired))
+
+        String message = getString(R.string.unavailable_feature_text).concat("\n");
+        if(Build.VERSION.SDK_INT < minVersionRequired)
+            message = message.concat(getString(R.string.unavailable_feature_version,
+                    Build.VERSION.SDK_INT,
+                    minVersionRequired));
+        else
+            message = message.concat(getString(R.string.unavailable_feature_hardware));
+
+        builder.setMessage(message)
                 .setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
                     public void onClick(DialogInterface dialog, int id) { }
                 });

app/src/main/java/com/keepassdroid/icons/DrawableFactory.java

@@ -53,10 +53,11 @@ public class DrawableFactory {
 	
 	public void assignDrawableTo(ImageView iv, Resources res, PwIcon icon) {
 		Drawable draw = getIconDrawable(res, icon);
+		if (iv != null && draw != null)
 			iv.setImageDrawable(draw);
 	}
 	
-	private Drawable getIconDrawable(Resources res, PwIcon icon) {
+	public Drawable getIconDrawable(Resources res, PwIcon icon) {
 		if (icon instanceof PwIconStandard) {
 			return getIconDrawable(res, (PwIconStandard) icon);
 		} else {

app/src/main/java/com/keepassdroid/password/PasswordActivity.java

@@ -0,0 +1,974 @@
+/*
+ * Copyright 2017 Brian Pellin, Jeremy Jamet / Kunzisoft.
+ *     
+ * This file is part of KeePass DX.
+ *
+ *  KeePass DX is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  KeePass DX is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with KeePass DX.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+package com.keepassdroid.password;
+
+import android.Manifest;
+import android.app.Activity;
+import android.app.assist.AssistStructure;
+import android.content.DialogInterface;
+import android.content.DialogInterface.OnClickListener;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.net.Uri;
+import android.os.AsyncTask;
+import android.os.Build;
+import android.os.Bundle;
+import android.os.Handler;
+import android.preference.PreferenceManager;
+import android.support.annotation.NonNull;
+import android.support.annotation.RequiresApi;
+import android.support.v4.hardware.fingerprint.FingerprintManagerCompat;
+import android.support.v7.app.AlertDialog;
+import android.support.v7.widget.Toolbar;
+import android.text.Editable;
+import android.text.TextWatcher;
+import android.util.Log;
+import android.view.Menu;
+import android.view.MenuInflater;
+import android.view.MenuItem;
+import android.view.View;
+import android.widget.Button;
+import android.widget.CompoundButton;
+import android.widget.EditText;
+import android.widget.ImageView;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import com.keepassdroid.activities.GroupActivity;
+import com.keepassdroid.app.App;
+import com.keepassdroid.autofill.AutofillHelper;
+import com.keepassdroid.compat.BackupManagerCompat;
+import com.keepassdroid.compat.ClipDataCompat;
+import com.keepassdroid.compat.EditorCompat;
+import com.keepassdroid.database.Database;
+import com.keepassdroid.database.edit.LoadDB;
+import com.keepassdroid.database.edit.OnFinish;
+import com.keepassdroid.dialog.PasswordEncodingDialogHelper;
+import com.keepassdroid.fingerprint.FingerPrintAnimatedVector;
+import com.keepassdroid.fingerprint.FingerPrintHelper;
+import com.keepassdroid.settings.PreferencesUtil;
+import com.keepassdroid.stylish.StylishActivity;
+import com.keepassdroid.tasks.ProgressTask;
+import com.keepassdroid.utils.EmptyUtils;
+import com.keepassdroid.utils.MenuUtil;
+import com.keepassdroid.utils.UriUtil;
+import com.keepassdroid.view.FingerPrintDialog;
+import com.keepassdroid.view.KeyFileHelper;
+import com.kunzisoft.keepass.R;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+
+import permissions.dispatcher.NeedsPermission;
+import permissions.dispatcher.OnNeverAskAgain;
+import permissions.dispatcher.OnPermissionDenied;
+import permissions.dispatcher.OnShowRationale;
+import permissions.dispatcher.PermissionRequest;
+import permissions.dispatcher.RuntimePermissions;
+
+import static com.keepassdroid.fingerprint.FingerPrintHelper.Mode.NOT_CONFIGURED_MODE;
+import static com.keepassdroid.fingerprint.FingerPrintHelper.Mode.OPEN_MODE;
+import static com.keepassdroid.fingerprint.FingerPrintHelper.Mode.STORE_MODE;
+
+@RuntimePermissions
+public class PasswordActivity extends StylishActivity
+        implements FingerPrintHelper.FingerPrintCallback, UriIntentInitTaskCallback {
+
+    public static final String KEY_DEFAULT_FILENAME = "defaultFileName";
+    public static final int RESULT_EXIT_LOCK = 1450;
+
+    private static final String KEY_PASSWORD = "password";
+    private static final String KEY_LAUNCH_IMMEDIATELY = "launchImmediately";
+
+    private Uri mDbUri = null;
+    SharedPreferences prefs;
+    SharedPreferences prefsNoBackup;
+
+    private FingerPrintHelper fingerPrintHelper;
+    private boolean fingerprintMustBeConfigured = true;
+    private boolean mRememberKeyfile;
+
+    private FingerPrintHelper.Mode fingerPrintMode;
+    private static final String PREF_KEY_VALUE_PREFIX = "valueFor_"; // key is a combination of db file name and this prefix
+    private static final String PREF_KEY_IV_PREFIX = "ivFor_"; // key is a combination of db file name and this prefix
+
+    private View fingerprintContainerView;
+    private FingerPrintAnimatedVector fingerPrintAnimatedVector;
+    private TextView fingerprintTextView;
+    private TextView filenameView;
+    private EditText passwordView;
+    private EditText keyFileView;
+    private Button confirmButtonView;
+    private CompoundButton checkboxPasswordView;
+    private CompoundButton checkboxKeyfileView;
+    private CompoundButton checkboxDefaultDatabaseView;
+
+    private DefaultCheckChange defaultCheckChange;
+    private ValidateButtonViewClickListener validateButtonViewClickListener;
+
+    private KeyFileHelper keyFileHelper;
+
+    private AutofillHelper autofillHelper;
+
+    public static void launch(
+            Activity act,
+            String fileName) throws FileNotFoundException {
+        launch(act, fileName, "");
+    }
+
+    public static void launch(
+            Activity act,
+            String fileName,
+            String keyFile) throws FileNotFoundException {
+        verifyFileNameUriFromLaunch(fileName);
+
+        Intent intent = new Intent(act, PasswordActivity.class);
+        intent.putExtra(UriIntentInitTask.KEY_FILENAME, fileName);
+        intent.putExtra(UriIntentInitTask.KEY_KEYFILE, keyFile);
+        // only to avoid visible  flickering when redirecting
+        act.startActivityForResult(intent, 0);
+    }
+
+    @RequiresApi(api = Build.VERSION_CODES.O)
+    public static void launch(
+            Activity act,
+            String fileName,
+            AssistStructure assistStructure) throws FileNotFoundException {
+        launch(act, fileName, "", assistStructure);
+    }
+
+    @RequiresApi(api = Build.VERSION_CODES.O)
+    public static void launch(
+            Activity act,
+            String fileName,
+            String keyFile,
+            AssistStructure assistStructure) throws FileNotFoundException {
+        verifyFileNameUriFromLaunch(fileName);
+
+        if ( assistStructure != null ) {
+            Intent intent = new Intent(act, PasswordActivity.class);
+            intent.putExtra(UriIntentInitTask.KEY_FILENAME, fileName);
+            intent.putExtra(UriIntentInitTask.KEY_KEYFILE, keyFile);
+            AutofillHelper.addAssistStructureExtraInIntent(intent, assistStructure);
+            act.startActivityForResult(intent, AutofillHelper.AUTOFILL_RESPONSE_REQUEST_CODE);
+        } else {
+            launch(act, fileName, keyFile);
+        }
+    }
+
+    private static void verifyFileNameUriFromLaunch(String fileName) throws FileNotFoundException {
+        if (EmptyUtils.isNullOrEmpty(fileName)) {
+            throw new FileNotFoundException();
+        }
+
+        Uri uri = UriUtil.parseDefaultFile(fileName);
+        assert uri != null;
+        String scheme = uri.getScheme();
+
+        if (!EmptyUtils.isNullOrEmpty(scheme) && scheme.equalsIgnoreCase("file")) {
+            File dbFile = new File(uri.getPath());
+            if (!dbFile.exists()) {
+                throw new FileNotFoundException();
+            }
+        }
+    }
+
+    @Override
+    protected void onActivityResult(
+            int requestCode,
+            int resultCode,
+            Intent data) {
+        super.onActivityResult(requestCode, resultCode, data);
+
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            AutofillHelper.onActivityResultSetResultAndFinish(this, requestCode, resultCode, data);
+        }
+
+        boolean keyFileResult = false;
+        if (keyFileHelper != null) {
+            keyFileResult = keyFileHelper.onActivityResultCallback(requestCode, resultCode, data,
+                    new KeyFileHelper.KeyFileCallback() {
+                        @Override
+                        public void onKeyFileResultCallback(Uri uri) {
+                            if (uri != null) {
+                                populateKeyFileTextView(uri.toString());
+                            }
+                        }
+                    });
+        }
+        if (!keyFileResult) {
+            // this block if not a key file response
+            switch (resultCode) {
+                case RESULT_EXIT_LOCK:
+                case Activity.RESULT_CANCELED:
+                    setEmptyViews();
+                    App.getDB().clear();
+                    break;
+            }
+        }
+    }
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        prefs = PreferenceManager.getDefaultSharedPreferences(this);
+        prefsNoBackup = PreferencesUtil.getNoBackupSharedPreferences(getApplicationContext());
+
+        mRememberKeyfile = prefs.getBoolean(getString(R.string.keyfile_key),
+                getResources().getBoolean(R.bool.keyfile_default));
+
+        setContentView(R.layout.password);
+
+        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
+        toolbar.setTitle(getString(R.string.app_name));
+        setSupportActionBar(toolbar);
+        assert getSupportActionBar() != null;
+        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
+        getSupportActionBar().setDisplayShowHomeEnabled(true);
+
+        confirmButtonView = (Button) findViewById(R.id.pass_ok);
+        filenameView = (TextView) findViewById(R.id.filename);
+        passwordView = (EditText) findViewById(R.id.password);
+        keyFileView = (EditText) findViewById(R.id.pass_keyfile);
+        checkboxPasswordView = (CompoundButton) findViewById(R.id.password_checkbox);
+        checkboxKeyfileView = (CompoundButton) findViewById(R.id.keyfile_checkox);
+        checkboxDefaultDatabaseView = (CompoundButton) findViewById(R.id.default_database);
+
+        View browseView = findViewById(R.id.browse_button);
+        keyFileHelper = new KeyFileHelper(PasswordActivity.this);
+        browseView.setOnClickListener(keyFileHelper.getOpenFileOnClickViewListener());
+
+        passwordView.addTextChangedListener(new TextWatcher() {
+            @Override
+            public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) {}
+
+            @Override
+            public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {}
+
+            @Override
+            public void afterTextChanged(Editable editable) {
+                if (!editable.toString().isEmpty() && !checkboxKeyfileView.isChecked())
+                    checkboxPasswordView.setChecked(true);
+            }
+        });
+        keyFileView.addTextChangedListener(new TextWatcher() {
+            @Override
+            public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) {}
+
+            @Override
+            public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {}
+
+            @Override
+            public void afterTextChanged(Editable editable) {
+                if (!editable.toString().isEmpty() && !checkboxKeyfileView.isChecked())
+                    checkboxKeyfileView.setChecked(true);
+            }
+        });
+
+        defaultCheckChange = new DefaultCheckChange();
+        validateButtonViewClickListener = new ValidateButtonViewClickListener();
+
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+            fingerprintContainerView = findViewById(R.id.fingerprint_container);
+            fingerprintTextView = (TextView) findViewById(R.id.fingerprint_label);
+            initForFingerprint();
+            fingerPrintAnimatedVector = new FingerPrintAnimatedVector(this,
+                            (ImageView) findViewById(R.id.fingerprint_image));
+        }
+
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            autofillHelper = new AutofillHelper();
+            autofillHelper.retrieveAssistStructure(getIntent());
+        }
+    }
+
+    @Override
+    protected void onResume() {
+        // If the application was shutdown make sure to clear the password field, if it
+        // was saved in the instance state
+        if (App.isShutdown()) {
+            setEmptyViews();
+        }
+
+        // Clear the shutdown flag
+        App.clearShutdown();
+
+        // For check shutdown
+        super.onResume();
+
+        new UriIntentInitTask(this, mRememberKeyfile)
+                .execute(getIntent());
+    }
+
+    @Override
+    public void onPostInitTask(Uri dbUri, Uri keyFileUri, Integer errorStringId) {
+        mDbUri = dbUri;
+
+        if (errorStringId != null) {
+            Toast.makeText(PasswordActivity.this, errorStringId, Toast.LENGTH_LONG).show();
+            finish();
+            return;
+        }
+
+        // Verify permission to read file
+        if (mDbUri != null
+                && !dbUri.getScheme().contains("content"))
+            PasswordActivityPermissionsDispatcher
+                    .doNothingWithPermissionCheck(this);
+
+        // Define title
+        String dbUriString = (mDbUri == null) ? "" : mDbUri.toString();
+        if (!dbUriString.isEmpty()) {
+            if (PreferencesUtil.isFullFilePathEnable(this))
+                filenameView.setText(dbUriString);
+            else
+                filenameView.setText(new File(mDbUri.getPath()).getName()); // TODO Encapsulate
+        }
+
+        // Define Key File text
+        String keyUriString = (keyFileUri == null) ? "" : keyFileUri.toString();
+        if (!keyUriString.isEmpty() && mRememberKeyfile) { // Bug KeepassDX #18
+            populateKeyFileTextView(keyUriString);
+        }
+
+        // Define listeners for default database checkbox and validate button
+        checkboxDefaultDatabaseView.setOnCheckedChangeListener(defaultCheckChange);
+        confirmButtonView.setOnClickListener(validateButtonViewClickListener);
+
+        // Retrieve settings for default database
+        String defaultFilename = prefs.getString(KEY_DEFAULT_FILENAME, "");
+        if (mDbUri!=null
+                && !EmptyUtils.isNullOrEmpty(mDbUri.getPath())
+                && UriUtil.equalsDefaultfile(mDbUri, defaultFilename)) {
+            checkboxDefaultDatabaseView.setChecked(true);
+        }
+
+        // checks if fingerprint is available, will also start listening for fingerprints when available
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+            checkFingerprintAvailability();
+            if (fingerPrintAnimatedVector != null) {
+                fingerPrintAnimatedVector.startScan();
+            }
+        }
+
+        // If Activity is launch with a password and want to open directly
+        Intent intent = getIntent();
+        String password = intent.getStringExtra(KEY_PASSWORD);
+        boolean launch_immediately = intent.getBooleanExtra(KEY_LAUNCH_IMMEDIATELY, false);
+        if (password != null) {
+            populatePasswordTextView(password);
+        }
+        if (launch_immediately) {
+            verifyCheckboxesAndLoadDatabase(password, keyFileUri);
+        }
+    }
+
+    private void setEmptyViews() {
+        populatePasswordTextView(null);
+        // Bug KeepassDX #18
+        if (!mRememberKeyfile) {
+            populateKeyFileTextView(null);
+        }
+    }
+
+    private void populatePasswordTextView(String text) {
+        if (text == null || text.isEmpty()) {
+            passwordView.setText("");
+            if (checkboxPasswordView.isChecked())
+                checkboxPasswordView.setChecked(false);
+        } else {
+            passwordView.setText(text);
+            if (!checkboxPasswordView.isChecked())
+                checkboxPasswordView.setChecked(true);
+        }
+    }
+
+    private void populateKeyFileTextView(String text) {
+        if (text == null || text.isEmpty()) {
+            keyFileView.setText("");
+            if (checkboxKeyfileView.isChecked())
+                checkboxKeyfileView.setChecked(false);
+        } else {
+            keyFileView.setText(text);
+            if (!checkboxKeyfileView.isChecked())
+                checkboxKeyfileView.setChecked(true);
+        }
+    }
+
+    // fingerprint related code here
+    @RequiresApi(api = Build.VERSION_CODES.M)
+    private void initForFingerprint() {
+        fingerPrintMode = NOT_CONFIGURED_MODE;
+
+        fingerPrintHelper = new FingerPrintHelper(this, this);
+
+        // when text entered we can enable the logon/purchase button and if required update encryption/decryption mode
+        passwordView.addTextChangedListener(new TextWatcher() {
+            @Override
+            public void beforeTextChanged(
+                    final CharSequence s,
+                    final int start,
+                    final int count,
+                    final int after) {}
+
+            @Override
+            public void onTextChanged(
+                    final CharSequence s,
+                    final int start,
+                    final int before,
+                    final int count) {}
+
+            @Override
+            public void afterTextChanged(final Editable s) {
+                if ( !fingerprintMustBeConfigured ) {
+                    final boolean validInput = s.length() > 0;
+                    // encrypt or decrypt mode based on how much input or not
+                    setFingerPrintTextView(validInput ? R.string.store_with_fingerprint : R.string.scanning_fingerprint);
+                    if (validInput)
+                        toggleFingerprintMode(STORE_MODE);
+                    else
+                        toggleFingerprintMode(OPEN_MODE);
+                }
+            }
+        });
+
+        // callback for fingerprint findings
+        fingerPrintHelper.setAuthenticationCallback(new FingerprintManagerCompat.AuthenticationCallback() {
+            @Override
+            public void onAuthenticationError(
+                    final int errorCode,
+                    final CharSequence errString) {
+                Log.i(getClass().getName(), errString.toString());
+            }
+
+            @Override
+            public void onAuthenticationHelp(
+                    final int helpCode,
+                    final CharSequence helpString) {
+                showError(helpString);
+                reInitWithSameFingerprintMode();
+                fingerprintTextView.setText(helpString);
+            }
+
+            @Override
+            public void onAuthenticationFailed() {
+                showError(R.string.fingerprint_not_recognized);
+                reInitWithSameFingerprintMode();
+            }
+
+            @Override
+            public void onAuthenticationSucceeded(final FingerprintManagerCompat.AuthenticationResult result) {
+                switch (fingerPrintMode) {
+                    case STORE_MODE:
+                        // newly store the entered password in encrypted way
+                        final String password = passwordView.getText().toString();
+                        fingerPrintHelper.encryptData(password);
+                        break;
+                    case OPEN_MODE:
+                        // retrieve the encrypted value from preferences
+                        final String encryptedValue = prefsNoBackup.getString(getPreferenceKeyValue(), null);
+                        if (encryptedValue != null) {
+                            fingerPrintHelper.decryptData(encryptedValue);
+                        }
+                        break;
+                }
+            }
+        });
+    }
+
+    private String getPreferenceKeyValue() {
+        // makes it possible to store passwords uniqly per database
+        return PREF_KEY_VALUE_PREFIX + (mDbUri != null ? mDbUri.getPath() : "");
+    }
+
+    private String getPreferenceKeyIvSpec() {
+        return PREF_KEY_IV_PREFIX + (mDbUri != null ? mDbUri.getPath() : "");
+    }
+
+    @RequiresApi(api = Build.VERSION_CODES.M)
+    private void initEncryptData() {
+        setFingerPrintTextView(R.string.store_with_fingerprint);
+        fingerPrintMode = STORE_MODE;
+        if (fingerPrintHelper != null)
+            fingerPrintHelper.initEncryptData();
+    }
+
+    @RequiresApi(api = Build.VERSION_CODES.M)
+    private void initDecryptData() {
+        setFingerPrintTextView(R.string.scanning_fingerprint);
+        fingerPrintMode = OPEN_MODE;
+        if (fingerPrintHelper != null) {
+            final String ivSpecValue = prefsNoBackup.getString(getPreferenceKeyIvSpec(), null);
+            if (ivSpecValue != null)
+                fingerPrintHelper.initDecryptData(ivSpecValue);
+        }
+    }
+
+    @RequiresApi(api = Build.VERSION_CODES.M)
+    private synchronized void toggleFingerprintMode(final FingerPrintHelper.Mode newMode) {
+        if( !newMode.equals(fingerPrintMode) ) {
+            fingerPrintMode = newMode;
+            reInitWithSameFingerprintMode();
+        }
+    }
+
+    @RequiresApi(api = Build.VERSION_CODES.M)
+    private synchronized void reInitWithSameFingerprintMode() {
+        switch (fingerPrintMode) {
+            case STORE_MODE:
+                initEncryptData();
+                break;
+            case OPEN_MODE:
+                initDecryptData();
+                break;
+        }
+        // Show fingerprint key deletion
+        invalidateOptionsMenu();
+    }
+
+    @Override
+    protected void onPause() {
+        super.onPause();
+
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+            if (fingerPrintAnimatedVector != null) {
+                fingerPrintAnimatedVector.stopScan();
+            }
+            // stop listening when we go in background
+            fingerPrintMode = NOT_CONFIGURED_MODE;
+            if (fingerPrintHelper != null) {
+                fingerPrintHelper.stopListening();
+            }
+        }
+    }
+
+    private void setFingerPrintVisibility(final int vis) {
+        runOnUiThread(new Runnable() {
+            @Override
+            public void run() {
+                fingerprintContainerView.setVisibility(vis);
+            }
+        });
+    }
+
+    private void setFingerPrintTextView(final int textId) {
+        runOnUiThread(new Runnable() {
+            @Override
+            public void run() {
+                fingerprintTextView.setText(textId);
+            }
+        });
+    }
+
+    private void setFingerPrintAlphaImageView(final float alpha) {
+        runOnUiThread(new Runnable() {
+            @Override
+            public void run() {
+                fingerprintContainerView.setAlpha(alpha);
+            }
+        });
+    }
+
+    @RequiresApi(api = Build.VERSION_CODES.M)
+    private synchronized void checkFingerprintAvailability() {
+        // fingerprint not supported (by API level or hardware) so keep option hidden
+        // or manually disable
+        if (!PreferencesUtil .isFingerprintEnable(getApplicationContext())
+                || !FingerPrintHelper.isFingerprintSupported(FingerprintManagerCompat.from(this))) {
+            setFingerPrintVisibility(View.GONE);
+        }
+        // fingerprint is available but not configured show icon but in disabled state with some information
+        else {
+            // show explanations
+            fingerprintContainerView.setOnClickListener(new View.OnClickListener() {
+                @Override
+                public void onClick(View view) {
+                    FingerPrintDialog fingerPrintDialog = new FingerPrintDialog();
+                    fingerPrintDialog.show(getSupportFragmentManager(), "fingerprintDialog");
+                }
+            });
+            setFingerPrintVisibility(View.VISIBLE);
+
+            if (!fingerPrintHelper.hasEnrolledFingerprints()) {
+                setFingerPrintAlphaImageView(0.6f);
+                // This happens when no fingerprints are registered. Listening won't start
+                setFingerPrintTextView(R.string.configure_fingerprint);
+            }
+            // finally fingerprint available and configured so we can use it
+            else {
+                fingerprintMustBeConfigured = false;
+                setFingerPrintAlphaImageView(1f);
+
+                // fingerprint available but no stored password found yet for this DB so show info don't listen
+                if (!prefsNoBackup.contains(getPreferenceKeyValue())) {
+                    setFingerPrintTextView(R.string.no_password_stored);
+                    // listen for encryption
+                    initEncryptData();
+                }
+                // all is set here so we can confirm to user and start listening for fingerprints
+                else {
+                    // listen for decryption
+                    initDecryptData();
+                }
+            }
+        }
+
+        // Show fingerprint key deletion
+        invalidateOptionsMenu();
+    }
+
+    private void removePrefsNoBackupKeys() {
+        prefsNoBackup.edit()
+                .remove(getPreferenceKeyValue())
+                .remove(getPreferenceKeyIvSpec())
+                .apply();
+    }
+
+    @Override
+    public void handleEncryptedResult(
+            final String value,
+            final String ivSpec) {
+        prefsNoBackup.edit()
+                .putString(getPreferenceKeyValue(), value)
+                .putString(getPreferenceKeyIvSpec(), ivSpec)
+                .apply();
+        verifyAllViewsAndLoadDatabase();
+        setFingerPrintTextView(R.string.encrypted_value_stored);
+    }
+
+    @Override
+    public void handleDecryptedResult(final String passwordValue) {
+        // Load database directly
+        verifyKeyFileViewsAndLoadDatabase(passwordValue);
+    }
+
+    @RequiresApi(api = Build.VERSION_CODES.M)
+    @Override
+    public void onInvalidKeyException(Exception e) {
+        showError(R.string.fingerprint_invalid_key);
+        removePrefsNoBackupKeys();
+        e.printStackTrace();
+        reInitWithSameFingerprintMode(); // restarts listening
+    }
+
+    @RequiresApi(api = Build.VERSION_CODES.M)
+    @Override
+    public void onFingerPrintException(Exception e) {
+        showError(R.string.fingerprint_error);
+        e.printStackTrace();
+        reInitWithSameFingerprintMode();
+    }
+
+    private void showError(final int messageId) {
+        runOnUiThread(new Runnable() {
+            @Override
+            public void run() {
+                Toast.makeText(getApplicationContext(), messageId, Toast.LENGTH_SHORT).show();
+            }
+        });
+    }
+
+    private void showError(final CharSequence message) {
+        runOnUiThread(new Runnable() {
+            @Override
+            public void run() {
+                Toast.makeText(getApplicationContext(), message, Toast.LENGTH_SHORT).show();
+            }
+        });
+    }
+
+    private class DefaultCheckChange implements CompoundButton.OnCheckedChangeListener {
+        @Override
+        public void onCheckedChanged(
+                CompoundButton buttonView,
+                boolean isChecked) {
+
+            String newDefaultFileName = "";
+            if (isChecked) {
+                newDefaultFileName = mDbUri.toString();
+            }
+
+            SharedPreferences.Editor editor = prefs.edit();
+            editor.putString(KEY_DEFAULT_FILENAME, newDefaultFileName);
+            EditorCompat.apply(editor);
+
+            BackupManagerCompat backupManager = new BackupManagerCompat(PasswordActivity.this);
+            backupManager.dataChanged();
+        }
+    }
+
+    private class ValidateButtonViewClickListener implements View.OnClickListener {
+        public void onClick(View view) {
+            verifyAllViewsAndLoadDatabase();
+        }
+    }
+
+    private void verifyAllViewsAndLoadDatabase() {
+        String pass = passwordView.getText().toString();
+        String keyfile = keyFileView.getText().toString();
+        verifyCheckboxesAndLoadDatabase(pass, UriUtil.parseDefaultFile(keyfile));
+    }
+
+    private void verifyCheckboxesAndLoadDatabase(String pass, Uri keyfile) {
+        if (!checkboxPasswordView.isChecked()) {
+            pass = "";
+        }
+        if (!checkboxKeyfileView.isChecked()) {
+            keyfile = null;
+        }
+        loadDatabase(pass, keyfile);
+    }
+
+    private void verifyKeyFileViewsAndLoadDatabase(String password) {
+        String key = keyFileView.getText().toString();
+        Uri keyUri = UriUtil.parseDefaultFile(key);
+        if (!checkboxKeyfileView.isChecked()) {
+            keyUri = null;
+        }
+        loadDatabase(password, keyUri);
+    }
+
+    private void loadDatabase(String pass, Uri keyfile) {
+        // Clear before we load
+        Database db = App.getDB();
+        db.clear();
+
+        // Clear the shutdown flag
+        App.clearShutdown();
+
+        Handler handler = new Handler();
+        AfterLoad afterLoad = new AfterLoad(handler, db);
+
+        LoadDB task = new LoadDB(db, PasswordActivity.this, mDbUri, pass, keyfile, afterLoad);
+        ProgressTask pt = new ProgressTask(PasswordActivity.this, task, R.string.loading_database);
+        pt.run();
+    }
+
+    @Override
+    public boolean onCreateOptionsMenu(Menu menu) {
+        super.onCreateOptionsMenu(menu);
+        MenuInflater inflater = getMenuInflater();
+        MenuUtil.defaultMenuInflater(inflater, menu);
+        if (!fingerprintMustBeConfigured
+                && prefsNoBackup.contains(getPreferenceKeyValue()) )
+            inflater.inflate(R.menu.fingerprint, menu);
+        return true;
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+
+        switch (item.getItemId()) {
+            case android.R.id.home:
+                finish();
+                break;
+            case R.id.menu_fingerprint_remove_key:
+                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+                    fingerPrintHelper.deleteEntryKey();
+                    removePrefsNoBackupKeys();
+                    fingerPrintMode = NOT_CONFIGURED_MODE;
+                    checkFingerprintAvailability();
+                }
+                break;
+            default:
+                return MenuUtil.onDefaultMenuOptionsItemSelected(this, item);
+        }
+
+        return super.onOptionsItemSelected(item);
+    }
+
+    @Override
+    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
+        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
+        // NOTE: delegate the permission handling to generated method
+        PasswordActivityPermissionsDispatcher.onRequestPermissionsResult(this, requestCode, grantResults);
+    }
+
+    /**
+     * Called after verify and try to opening the database
+     */
+    private final class AfterLoad extends OnFinish {
+
+        protected Database db;
+
+        AfterLoad(
+                Handler handler,
+                Database db) {
+            super(handler);
+
+            this.db = db;
+        }
+
+        @Override
+        public void run() {
+
+            // Recheck fingerprint if error
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+                //setEmptyViews();
+                //mMessage = getString(R.string.fingerprint_error) + " : " + mMessage;
+                // TODO Change fingerprint message
+                // Stay with the same mode
+                reInitWithSameFingerprintMode();
+            }
+
+            if (db.passwordEncodingError) {
+                PasswordEncodingDialogHelper dialog = new PasswordEncodingDialogHelper();
+                dialog.show(PasswordActivity.this, new OnClickListener() {
+
+                    @Override
+                    public void onClick(
+                            DialogInterface dialog,
+                            int which) {
+                        launchGroupActivity();
+                    }
+
+                });
+            } else if (mSuccess) {
+                launchGroupActivity();
+            } else {
+                displayMessage(PasswordActivity.this);
+            }
+        }
+    }
+
+    private void launchGroupActivity() {
+        AssistStructure assistStructure = null;
+        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) {
+            assistStructure = autofillHelper.getAssistStructure();
+            if (assistStructure != null) {
+                GroupActivity.launch(PasswordActivity.this, assistStructure);
+            }
+        }
+        if (assistStructure == null) {
+            GroupActivity.launch(PasswordActivity.this);
+        }
+    }
+
+    private static class UriIntentInitTask extends AsyncTask<Intent, Void, Integer> {
+
+        static final String KEY_FILENAME = "fileName";
+        static final String KEY_KEYFILE = "keyFile";
+        private static final String VIEW_INTENT = "android.intent.action.VIEW";
+
+        private UriIntentInitTaskCallback uriIntentInitTaskCallback;
+        private boolean isKeyFileNeeded;
+        private Uri databaseUri;
+        private Uri keyFileUri;
+
+        UriIntentInitTask(UriIntentInitTaskCallback uriIntentInitTaskCallback, boolean isKeyFileNeeded) {
+            this.uriIntentInitTaskCallback = uriIntentInitTaskCallback;
+            this.isKeyFileNeeded = isKeyFileNeeded;
+        }
+
+        @Override
+        protected Integer doInBackground(Intent... args) {
+            Intent intent = args[0];
+            String action = intent.getAction();
+            if (action != null && action.equals(VIEW_INTENT)) {
+                Uri incoming = intent.getData();
+                databaseUri = incoming;
+                keyFileUri = ClipDataCompat.getUriFromIntent(intent, KEY_KEYFILE);
+
+                if (incoming == null) {
+                    return R.string.error_can_not_handle_uri;
+                } else if (incoming.getScheme().equals("file")) {
+                    String fileName = incoming.getPath();
+
+                    if (fileName.length() == 0) {
+                        // No file name
+                        return R.string.file_not_found;
+                    }
+
+                    File dbFile = new File(fileName);
+                    if (!dbFile.exists()) {
+                        // File does not exist
+                        return R.string.file_not_found;
+                    }
+
+                    if (keyFileUri == null) {
+                        keyFileUri = getKeyFile(databaseUri);
+                    }
+                } else if (incoming.getScheme().equals("content")) {
+                    if (keyFileUri == null) {
+                        keyFileUri = getKeyFile(databaseUri);
+                    }
+                } else {
+                    return R.string.error_can_not_handle_uri;
+                }
+
+            } else {
+                databaseUri = UriUtil.parseDefaultFile(intent.getStringExtra(KEY_FILENAME));
+                keyFileUri = UriUtil.parseDefaultFile(intent.getStringExtra(KEY_KEYFILE));
+
+                if (keyFileUri == null || keyFileUri.toString().length() == 0) {
+                    keyFileUri = getKeyFile(databaseUri);
+                }
+            }
+            return null;
+        }
+
+        public void onPostExecute(Integer result) {
+            uriIntentInitTaskCallback.onPostInitTask(databaseUri, keyFileUri, result);
+        }
+
+        private Uri getKeyFile(Uri dbUri) {
+            if (isKeyFileNeeded) {
+                return App.getFileHistory().getFileByName(dbUri);
+            } else {
+                return null;
+            }
+        }
+    }
+
+    @NeedsPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE)
+    public void doNothing() {}
+
+    @OnShowRationale(Manifest.permission.WRITE_EXTERNAL_STORAGE)
+    void showRationaleForExternalStorage(final PermissionRequest request) {
+        new AlertDialog.Builder(this)
+                .setMessage(R.string.permission_external_storage_rationale_read_database)
+                .setPositiveButton(R.string.allow, new DialogInterface.OnClickListener() {
+                    @Override
+                    public void onClick(DialogInterface dialog, int which) {
+                        request.proceed();
+                    }
+                })
+                .setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() {
+                    @Override
+                    public void onClick(DialogInterface dialog, int which) {
+                        request.cancel();
+                    }
+                })
+                .show();
+    }
+
+    @OnPermissionDenied(Manifest.permission.WRITE_EXTERNAL_STORAGE)
+    void showDeniedForExternalStorage() {
+        Toast.makeText(this, R.string.permission_external_storage_denied, Toast.LENGTH_SHORT).show();
+        finish();
+    }
+
+    @OnNeverAskAgain(Manifest.permission.WRITE_EXTERNAL_STORAGE)
+    void showNeverAskForExternalStorage() {
+        Toast.makeText(this, R.string.permission_external_storage_never_ask, Toast.LENGTH_SHORT).show();
+        finish();
+    }
+}

app/src/main/java/com/keepassdroid/password/UriIntentInitTaskCallback.java

@@ -0,0 +1,7 @@
+package com.keepassdroid.password;
+
+import android.net.Uri;
+
+interface UriIntentInitTaskCallback {
+    void onPostInitTask(Uri dbUri, Uri keyFileUri, Integer errorStringId);
+}

app/src/main/java/com/keepassdroid/search/SearchDbHelper.java

@@ -19,20 +19,13 @@
  */
 package com.keepassdroid.search;
 
-import java.util.ArrayList;
-import java.util.Iterator;
-import java.util.LinkedList;
-import java.util.List;
-import java.util.Locale;
-import java.util.Queue;
-
 import android.content.Context;
 import android.content.SharedPreferences;
 import android.preference.PreferenceManager;
 import android.util.Log;
 
 import com.kunzisoft.keepass.R;
-import com.keepassdroid.Database;
+import com.keepassdroid.database.Database;
 import com.keepassdroid.database.PwDatabase;
 import com.keepassdroid.database.PwDatabaseV3;
 import com.keepassdroid.database.PwDatabaseV4;
@@ -41,6 +34,13 @@ import com.keepassdroid.database.PwGroup;
 import com.keepassdroid.database.PwGroupV3;
 import com.keepassdroid.database.PwGroupV4;
 
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Locale;
+import java.util.Queue;
+
 public class SearchDbHelper {
 	private final Context mCtx;
 	

app/src/main/java/com/keepassdroid/search/SearchResultsActivity.java

@@ -22,44 +22,28 @@ package com.keepassdroid.search;
 import android.app.SearchManager;
 import android.content.Intent;
 import android.os.Bundle;
+import android.support.v7.widget.RecyclerView;
 import android.support.v7.widget.Toolbar;
 import android.view.Menu;
 import android.view.MenuInflater;
 import android.view.MenuItem;
 import android.view.View;
 
-import com.kunzisoft.keepass.KeePass;
-import com.kunzisoft.keepass.R;
-import com.keepassdroid.Database;
-import com.keepassdroid.GroupBaseActivity;
-import com.keepassdroid.PwGroupListAdapter;
+import com.keepassdroid.activities.ListNodesActivity;
 import com.keepassdroid.app.App;
+import com.keepassdroid.database.Database;
+import com.keepassdroid.database.PwGroup;
 import com.keepassdroid.utils.MenuUtil;
+import com.kunzisoft.keepass.R;
 
-public class SearchResultsActivity extends GroupBaseActivity {
+public class SearchResultsActivity extends ListNodesActivity {
 
-	private Database mDb;
-
-	private View listView;
-	private View imageNotFoundView;
+    private RecyclerView listView;
 
     @Override
 	protected void onCreate(Bundle savedInstanceState) {
 		super.onCreate(savedInstanceState);
 
-		if ( isFinishing() ) {
-			return;
-		}
-		
-		setResult(KeePass.EXIT_NORMAL);
-		
-		mDb = App.getDB();
-		
-		// Likely the app has been killed exit the activity 
-		if ( ! mDb.Loaded() ) {
-			finish();
-		}
-
         setContentView(getLayoutInflater().inflate(R.layout.search_results, null));
 
         Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
@@ -69,11 +53,33 @@ public class SearchResultsActivity extends GroupBaseActivity {
         getSupportActionBar().setDisplayHomeAsUpEnabled(true);
         getSupportActionBar().setDisplayShowHomeEnabled(true);
 
-        listView = findViewById(R.id.group_list);
-        imageNotFoundView = findViewById(R.id.img_not_found);
+        listView = (RecyclerView) findViewById(R.id.nodes_list);
+        View notFoundView = findViewById(R.id.not_found_container);
 
-		performSearch(getSearchStr(getIntent()));
+        if ( mCurrentGroup == null || mCurrentGroup.numbersOfChildEntries() < 1 ) {
+            listView.setVisibility(View.GONE);
+            notFoundView.setVisibility(View.VISIBLE);
+        } else {
+            listView.setVisibility(View.VISIBLE);
+            notFoundView.setVisibility(View.GONE);
+        }
 
+        setGroupTitle();
+	}
+
+    @Override
+    protected PwGroup initCurrentGroup() {
+        Database mDb = App.getDB();
+        // Likely the app has been killed exit the activity
+        if ( ! mDb.Loaded() ) {
+            finish();
+        }
+        return mDb.Search(getSearchStr(getIntent()).trim());
+    }
+
+    @Override
+    protected RecyclerView defineNodeList() {
+        return listView;
     }
 
     @Override
@@ -92,26 +98,9 @@ public class SearchResultsActivity extends GroupBaseActivity {
             case android.R.id.home:
                 finish();
         }
-
         return super.onOptionsItemSelected(item);
     }
 
-	private void performSearch(String query) {
-		mGroup = mDb.Search(query.trim());
-
-		if ( mGroup == null || mGroup.childEntries.size() < 1 ) {
-            listView.setVisibility(View.GONE);
-            imageNotFoundView.setVisibility(View.VISIBLE);
-		} else {
-            listView.setVisibility(View.VISIBLE);
-            imageNotFoundView.setVisibility(View.GONE);
-        }
-
-		setGroupTitle();
-		
-		setListAdapter(new PwGroupListAdapter(this, mGroup));
-	}
-
 	private String getSearchStr(Intent queryIntent) {
         // get and process search query here
         final String queryAction = queryIntent.getAction();

app/src/main/java/com/keepassdroid/settings/MainPreferenceFragment.java

@@ -1,14 +1,14 @@
 package com.keepassdroid.settings;
 
 import android.content.Context;
+import android.os.Build;
 import android.os.Bundle;
 import android.support.v4.app.DialogFragment;
 import android.support.v7.preference.Preference;
 import android.support.v7.preference.PreferenceFragmentCompat;
-import android.widget.Toast;
 
-import com.keepassdroid.Database;
 import com.keepassdroid.app.App;
+import com.keepassdroid.database.Database;
 import com.kunzisoft.keepass.R;
 
 public class MainPreferenceFragment extends PreferenceFragmentCompat implements Preference.OnPreferenceClickListener {
@@ -34,9 +34,11 @@ public class MainPreferenceFragment extends PreferenceFragmentCompat implements
         Preference preference = findPreference(getString(R.string.app_key));
         preference.setOnPreferenceClickListener(this);
 
-        preference = findPreference(getString(R.string.db_key));
+        preference = findPreference(getString(R.string.settings_form_filling_key));
         preference.setOnPreferenceClickListener(this);
 
+        preference = findPreference(getString(R.string.db_key));
+        preference.setOnPreferenceClickListener(this);
         Database db = App.getDB();
         if (!(db.Loaded())) {
             preference.setEnabled(false);
@@ -64,6 +66,10 @@ public class MainPreferenceFragment extends PreferenceFragmentCompat implements
             mCallback.onNestedPreferenceSelected(NestedSettingsFragment.NESTED_SCREEN_APP_KEY);
         }
 
+        if (preference.getKey().equals(getString(R.string.settings_form_filling_key))) {
+            mCallback.onNestedPreferenceSelected(NestedSettingsFragment.NESTED_SCREEN_FORM_FILLING_KEY);
+        }
+
         if (preference.getKey().equals(getString(R.string.db_key))) {
             mCallback.onNestedPreferenceSelected(NestedSettingsFragment.NESTED_SCREEN_DB_KEY);
         }

app/src/main/java/com/keepassdroid/settings/NestedSettingsFragment.java

@@ -19,30 +19,44 @@
  */
 package com.keepassdroid.settings;
 
+import android.content.Intent;
+import android.content.DialogInterface;
 import android.content.res.Resources;
+import android.net.Uri;
 import android.os.Build;
 import android.os.Bundle;
+import android.provider.Settings;
+import android.support.annotation.RequiresApi;
 import android.support.v14.preference.SwitchPreference;
 import android.support.v4.app.DialogFragment;
+import android.support.v4.app.FragmentManager;
+import android.support.v4.hardware.fingerprint.FingerprintManagerCompat;
+import android.support.v7.app.AlertDialog;
 import android.support.v7.preference.Preference;
 import android.support.v7.preference.PreferenceFragmentCompat;
 import android.util.Log;
+import android.view.autofill.AutofillManager;
 import android.widget.Toast;
 
-import com.keepassdroid.UnavailableFeatureDialog;
-import com.kunzisoft.keepass.R;
-import com.keepassdroid.Database;
+import com.keepassdroid.database.Database;
+import com.keepassdroid.fragments.UnavailableFeatureDialogFragment;
 import com.keepassdroid.app.App;
 import com.keepassdroid.database.PwEncryptionAlgorithm;
+import com.keepassdroid.fingerprint.FingerPrintHelper;
 import com.keepassdroid.stylish.Stylish;
+import com.kunzisoft.keepass.R;
 
-public class NestedSettingsFragment extends PreferenceFragmentCompat {
+public class NestedSettingsFragment extends PreferenceFragmentCompat
+        implements Preference.OnPreferenceClickListener {
 
     public static final int NESTED_SCREEN_APP_KEY = 1;
-    public static final int NESTED_SCREEN_DB_KEY = 2;
+    public static final int NESTED_SCREEN_FORM_FILLING_KEY = 2;
+    public static final int NESTED_SCREEN_DB_KEY = 3;
 
     private static final String TAG_KEY = "NESTED_KEY";
 
+    private static final int REQUEST_CODE_AUTOFILL = 5201;
+
     public static NestedSettingsFragment newInstance(int key) {
         NestedSettingsFragment fragment = new NestedSettingsFragment();
         // supply arguments to bundle.
@@ -52,6 +66,23 @@ public class NestedSettingsFragment extends PreferenceFragmentCompat {
         return fragment;
     }
 
+    @Override
+    public void onResume() {
+        super.onResume();
+
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            SwitchPreference autoFillEnablePreference =
+                    (SwitchPreference) findPreference(getString(R.string.settings_autofill_enable_key));
+            if (autoFillEnablePreference != null) {
+                AutofillManager autofillManager = getActivity().getSystemService(AutofillManager.class);
+                if (autofillManager != null && autofillManager.hasEnabledAutofillServices())
+                    autoFillEnablePreference.setChecked(true);
+                else
+                    autoFillEnablePreference.setChecked(false);
+            }
+        }
+    }
+
     @Override
     public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
         int key = getArguments().getInt(TAG_KEY);
@@ -61,78 +92,172 @@ public class NestedSettingsFragment extends PreferenceFragmentCompat {
                 setPreferencesFromResource(R.xml.app_preferences, rootKey);
 
                 Preference keyFile = findPreference(getString(R.string.keyfile_key));
-                keyFile.setOnPreferenceChangeListener(new Preference.OnPreferenceChangeListener() {
-
-                    public boolean onPreferenceChange(Preference preference, Object newValue) {
+                keyFile.setOnPreferenceChangeListener((preference, newValue) -> {
                     Boolean value = (Boolean) newValue;
-
                     if (!value) {
                         App.getFileHistory().deleteAllKeys();
                     }
-
                     return true;
-                    }
                 });
 
                 Preference recentHistory = findPreference(getString(R.string.recentfile_key));
-                recentHistory.setOnPreferenceChangeListener(new Preference.OnPreferenceChangeListener() {
-
-                    public boolean onPreferenceChange(Preference preference, Object newValue) {
+                recentHistory.setOnPreferenceChangeListener((preference, newValue) -> {
                     Boolean value = (Boolean) newValue;
-
                     if (value == null) {
                         value = true;
                     }
-
                     if (!value) {
                         App.getFileHistory().deleteAll();
                     }
-
                     return true;
-                    }
                 });
 
                 Preference stylePreference = findPreference(getString(R.string.setting_style_key));
-                stylePreference.setOnPreferenceChangeListener(new Preference.OnPreferenceChangeListener() {
-                    @Override
-                    public boolean onPreferenceChange(Preference preference, Object newValue) {
+                stylePreference.setOnPreferenceChangeListener((preference, newValue) -> {
                     String styleString = (String) newValue;
                     Stylish.assignStyle(getActivity(), styleString);
                     getActivity().recreate();
                     return true;
-                    }
                 });
 
-                if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) {
+                SwitchPreference fingerprintEnablePreference =
+                        (SwitchPreference) findPreference(getString(R.string.fingerprint_enable_key));
+                // < M solve verifyError exception
+                boolean fingerprintSupported = false;
+                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M)
+                    fingerprintSupported = FingerPrintHelper.isFingerprintSupported(
+                            FingerprintManagerCompat.from(getContext()));
+                if (!fingerprintSupported) {
                     // False if under Marshmallow
-                    SwitchPreference preference = (SwitchPreference) findPreference(getString(R.string.fingerprint_enable_key));
-                    preference.setDefaultValue(false);
-                    preference.setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() {
+                    fingerprintEnablePreference.setChecked(false);
+                    fingerprintEnablePreference.setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() {
                         @Override
                         public boolean onPreferenceClick(Preference preference) {
+                            FragmentManager fragmentManager = getFragmentManager();
+                            assert fragmentManager != null;
                             ((SwitchPreference) preference).setChecked(false);
-                            UnavailableFeatureDialog.getInstance(Build.VERSION_CODES.M)
+                            UnavailableFeatureDialogFragment.getInstance(Build.VERSION_CODES.M)
                                     .show(getFragmentManager(), "unavailableFeatureDialog");
                             return false;
                         }
                     });
                 }
 
+                Preference deleteKeysFingerprints = findPreference(getString(R.string.fingerprint_delete_all_key));
+                if (!fingerprintSupported) {
+                    deleteKeysFingerprints.setEnabled(false);
+                } else {
+                    deleteKeysFingerprints.setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() {
+                        @Override
+                        public boolean onPreferenceClick(Preference preference) {
+                            new AlertDialog.Builder(getContext())
+                                    .setMessage(getResources().getString(R.string.fingerprint_delete_all_warning))
+                                    .setIcon(getResources().getDrawable(
+                                            android.R.drawable.ic_dialog_alert))
+                                    .setPositiveButton(
+                                            getResources().getString(android.R.string.yes),
+                                            new DialogInterface.OnClickListener() {
+                                                @RequiresApi(api = Build.VERSION_CODES.M)
+                                                @Override
+                                                public void onClick(DialogInterface dialog,
+                                                                    int which) {
+                                                    FingerPrintHelper.deleteEntryKeyInKeystoreForFingerprints(
+                                                            getContext(),
+                                                            new FingerPrintHelper.FingerPrintErrorCallback() {
+                                                                @Override
+                                                                public void onInvalidKeyException(Exception e) {
+                                                                }
+
+                                                                @Override
+                                                                public void onFingerPrintException(Exception e) {
+                                                                    Toast.makeText(getContext(), R.string.fingerprint_error, Toast.LENGTH_SHORT).show();
+                                                                }
+                                                            });
+                                                    PreferencesUtil.deleteAllValuesFromNoBackupPreferences(getContext());
+                                                }
+                                            })
+                                    .setNegativeButton(
+                                            getResources().getString(android.R.string.no),
+                                            new DialogInterface.OnClickListener() {
+                                                @Override
+                                                public void onClick(DialogInterface dialog,
+                                                                    int which) {
+                                                }
+                                            }).show();
+                            return false;
+                        }
+                    });
+                }
+                break;
+
+            case NESTED_SCREEN_FORM_FILLING_KEY:
+                setPreferencesFromResource(R.xml.form_filling_preferences, rootKey);
+
+                SwitchPreference autoFillEnablePreference =
+                        (SwitchPreference) findPreference(getString(R.string.settings_autofill_enable_key));
+                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+                    AutofillManager autofillManager = getActivity().getSystemService(AutofillManager.class);
+                    if (autofillManager != null && autofillManager.hasEnabledAutofillServices())
+                        autoFillEnablePreference.setChecked(autofillManager.hasEnabledAutofillServices());
+                    autoFillEnablePreference.setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() {
+                        @RequiresApi(api = Build.VERSION_CODES.O)
+                        @Override
+                        public boolean onPreferenceClick(Preference preference) {
+                            if (((SwitchPreference) preference).isChecked()) {
+                                startEnableService();
+                            } else {
+                                disableService();
+                            }
+                            return false;
+                        }
+
+                        @RequiresApi(api = Build.VERSION_CODES.O)
+                        private void disableService() {
+                            if (autofillManager != null && autofillManager.hasEnabledAutofillServices()) {
+                                autofillManager.disableAutofillServices();
+                            } else {
+                                Log.d(getClass().getName(), "Sample service already disabled.");
+                            }
+                        }
+
+                        @RequiresApi(api = Build.VERSION_CODES.O)
+                        private void startEnableService() {
+                            if (autofillManager != null && !autofillManager.hasEnabledAutofillServices()) {
+                                Intent intent = new Intent(Settings.ACTION_REQUEST_SET_AUTOFILL_SERVICE);
+                                intent.setData(Uri.parse("package:com.example.android.autofill.service"));
+                                Log.d(getClass().getName(), "enableService(): intent="+ intent);
+                                startActivityForResult(intent, REQUEST_CODE_AUTOFILL);
+                            } else {
+                                Log.d(getClass().getName(), "Sample service already enabled.");
+                            }
+                        }
+                    });
+                } else {
+                    autoFillEnablePreference.setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() {
+                        @Override
+                        public boolean onPreferenceClick(Preference preference) {
+                            if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) {
+                                ((SwitchPreference) preference).setChecked(false);
+                                FragmentManager fragmentManager = getFragmentManager();
+                                assert fragmentManager != null;
+                                UnavailableFeatureDialogFragment.getInstance(Build.VERSION_CODES.O)
+                                        .show(fragmentManager, "unavailableFeatureDialog");
+                            }
+                            return false;
+                        }
+                    });
+                }
                 break;
 
             case NESTED_SCREEN_DB_KEY:
                 setPreferencesFromResource(R.xml.db_preferences, rootKey);
 
                 Database db = App.getDB();
-                Preference algorithmPref = findPreference(getString(R.string.algorithm_key));
+                if (db.Loaded()) {
+                    if (db.pm.algorithmSettingsEnabled()) {
+
                         Preference roundPref = findPreference(getString(R.string.rounds_key));
-
-                if (!(db.Loaded() && db.pm.appSettingsEnabled())) {
-                    algorithmPref.setEnabled(false);
-                    roundPref.setEnabled(false);
-                }
-
-                if (db.Loaded() && db.pm.appSettingsEnabled()) {
+                        roundPref.setEnabled(true);
                         roundPref.setOnPreferenceChangeListener(new Preference.OnPreferenceChangeListener() {
                             public boolean onPreferenceChange(Preference preference, Object newValue) {
                                 setRounds(App.getDB(), preference);
@@ -140,7 +265,20 @@ public class NestedSettingsFragment extends PreferenceFragmentCompat {
                             }
                         });
                         setRounds(db, roundPref);
+
+                        // TODO Algo
+                        Preference algorithmPref = findPreference(getString(R.string.algorithm_key));
+                        // algorithmPref.setEnabled(true);
                         setAlgorithm(db, algorithmPref);
+                    }
+
+                    if (db.pm.isRecycleBinAvailable()) {
+                        SwitchPreference recycleBinPref = (SwitchPreference) findPreference(getString(R.string.recycle_bin_key));
+                        // TODO Recycle
+                        //recycleBinPref.setEnabled(true);
+                        recycleBinPref.setChecked(db.pm.isRecycleBinEnable());
+                    }
+
                 } else {
                     Log.e(getClass().getName(), "Database isn't ready");
                 }
@@ -185,10 +323,19 @@ public class NestedSettingsFragment extends PreferenceFragmentCompat {
         switch (key) {
             case NESTED_SCREEN_APP_KEY:
                 return resources.getString(R.string.menu_app_settings);
+            case NESTED_SCREEN_FORM_FILLING_KEY:
+                return resources.getString(R.string.menu_form_filling_settings);
             case NESTED_SCREEN_DB_KEY:
                 return resources.getString(R.string.menu_db_settings);
             default:
                 return resources.getString(R.string.settings);
         }
     }
+
+    @Override
+    public boolean onPreferenceClick(Preference preference) {
+        // TODO encapsulate
+
+        return false;
+    }
 }