Add External permission with permissionDispatcher

app/build.gradle

@@ -62,6 +62,7 @@ android {
 
 def supportVersion = "25.4.0"
 def spongycastleVersion = "1.58.0.0"
+def permissionDispatcherVersion = "3.1.0"
 
 dependencies {
     androidTestCompile "junit:junit:4.12"
@@ -72,7 +73,14 @@ dependencies {
     compile "com.android.support:cardview-v7:$supportVersion"
     compile "com.madgag.spongycastle:core:$spongycastleVersion"
     compile "com.madgag.spongycastle:prov:$spongycastleVersion"
+    // Time
     compile "joda-time:joda-time:2.9.9"
     compile "org.sufficientlysecure:html-textview:3.5"
     compile "com.nononsenseapps:filepicker:4.1.0"
+    // Permissions
+    compile ("com.github.hotchemi:permissionsdispatcher:$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"
 }

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

@@ -22,15 +22,14 @@ package com.keepassdroid.fileselect;
 import android.Manifest;
 import android.content.ActivityNotFoundException;
 import android.content.ContentResolver;
+import android.content.DialogInterface;
 import android.content.Intent;
 import android.content.SharedPreferences;
-import android.content.pm.PackageManager;
 import android.net.Uri;
 import android.os.Bundle;
 import android.os.Environment;
 import android.preference.PreferenceManager;
-import android.support.v4.app.ActivityCompat;
+import android.support.v7.app.AlertDialog;
-import android.support.v4.content.ContextCompat;
 import android.support.v7.widget.LinearLayoutManager;
 import android.support.v7.widget.RecyclerView;
 import android.support.v7.widget.Toolbar;
@@ -41,19 +40,19 @@ import android.view.View;
 import android.widget.EditText;
 import android.widget.Toast;
 
-import com.keepassdroid.fragments.AssignMasterKeyDialogFragment;
-import com.keepassdroid.fragments.CreateFileDialogFragment;
 import com.keepassdroid.activities.GroupActivity;
-import com.keepassdroid.password.PasswordActivity;
-import com.keepassdroid.tasks.ProgressTask;
 import com.keepassdroid.app.App;
 import com.keepassdroid.compat.ContentResolverCompat;
 import com.keepassdroid.compat.StorageAF;
 import com.keepassdroid.database.edit.CreateDB;
 import com.keepassdroid.database.edit.FileOnFinish;
 import com.keepassdroid.database.exception.ContentFileNotFoundException;
+import com.keepassdroid.fragments.AssignMasterKeyDialogFragment;
+import com.keepassdroid.fragments.CreateFileDialogFragment;
 import com.keepassdroid.intents.Intents;
+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;
@@ -68,6 +67,14 @@ import java.io.FileNotFoundException;
 import java.io.IOException;
 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
 		CreateFileDialogFragment.DefinePathDialogListener ,
 		AssignMasterKeyDialogFragment.AssignPasswordDialogListener,
@@ -77,7 +84,6 @@ public class FileSelectActivity extends StylishActivity implements
 
     private static final String TAG = "FileSelectActivity";
 
-	private static final int MY_PERMISSIONS_REQUEST_EXTERNAL_STORAGE = 111;
 	private RecyclerView mListFiles;
 	private FileSelectAdapter mAdapter;
 	private View fileListTitle;
@@ -501,59 +507,37 @@ public class FileSelectActivity extends StylishActivity implements
 		mAdapter.notifyDataSetChanged();
 	}
 
-	private void checkStoragePermission() {
+    @NeedsPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE)
-		// Here, thisActivity is the current activity
+    void checkStoragePermission() {}
-		if (ContextCompat.checkSelfPermission(FileSelectActivity.this,
-											  Manifest.permission.WRITE_EXTERNAL_STORAGE)
-				!= PackageManager.PERMISSION_GRANTED) {
 
-			// Should we show an explanation?
+    @OnShowRationale(Manifest.permission.WRITE_EXTERNAL_STORAGE)
-			//if (ActivityCompat.shouldShowRequestPermissionRationale(FileSelectActivity.this,
+    void showRationaleForExternalStorage(final PermissionRequest request) {
-			//														Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
+        new AlertDialog.Builder(this)
+                .setMessage(R.string.permission_external_storage_rationale)
+                .setPositiveButton(android.R.string.ok, 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();
+    }
 
-				// Show an explanation to the user *asynchronously* -- don't block
+    @OnPermissionDenied(Manifest.permission.WRITE_EXTERNAL_STORAGE)
-				// this thread waiting for the user's response! After the user
+    void showDeniedForExternalStorage() {
-				// sees the explanation, try again to request the permission.
+        Toast.makeText(this, R.string.permission_external_storage_denied, Toast.LENGTH_SHORT).show();
+    }
 
-			//} else {
+    @OnNeverAskAgain(Manifest.permission.WRITE_EXTERNAL_STORAGE)
-
+    void showNeverAskForExternalStorage() {
-				// No explanation needed, we can request the permission.
+        Toast.makeText(this, R.string.permission_external_storage_neverask, Toast.LENGTH_SHORT).show();
-
+    }
-				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.
-			//}
-		}
-	}
-
-	@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.
-				}
-				return;
-			}
-
-			// other 'case' lines to check for other
-			// permissions this app might request
-		}
-	}
 
 	@Override
 	public boolean onCreateOptionsMenu(Menu menu) {

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

@@ -19,6 +19,7 @@
  */
 package com.keepassdroid.password;
 
+import android.Manifest;
 import android.app.Activity;
 import android.content.DialogInterface;
 import android.content.DialogInterface.OnClickListener;
@@ -32,6 +33,7 @@ import android.os.Handler;
 import android.preference.PreferenceManager;
 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;
@@ -76,6 +78,14 @@ import static com.keepassdroid.fingerprint.FingerPrintHelper.Mode.NOT_CONFIGURED
 import static com.keepassdroid.fingerprint.FingerPrintHelper.Mode.OPEN_MODE;
 import static com.keepassdroid.fingerprint.FingerPrintHelper.Mode.STORE_MODE;
 
+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 PasswordActivity extends LockingActivity
         implements FingerPrintHelper.FingerPrintCallback, UriIntentInitTaskCallback {
 
@@ -261,6 +271,9 @@ public class PasswordActivity extends LockingActivity
         // For check shutdown
         super.onResume();
 
+        // Check the storage permission
+        checkStoragePermission();
+
         new UriIntentInitTask(this, mRememberKeyfile)
                 .execute(getIntent());
     }
@@ -843,4 +856,36 @@ public class PasswordActivity extends LockingActivity
             }
         }
     }
+
+    @NeedsPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE)
+    void checkStoragePermission() {}
+
+    @OnShowRationale(Manifest.permission.WRITE_EXTERNAL_STORAGE)
+    void showRationaleForExternalStorage(final PermissionRequest request) {
+        new AlertDialog.Builder(this)
+                .setMessage(R.string.permission_external_storage_rationale)
+                .setPositiveButton(android.R.string.ok, 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();
+    }
+
+    @OnNeverAskAgain(Manifest.permission.WRITE_EXTERNAL_STORAGE)
+    void showNeverAskForExternalStorage() {
+        Toast.makeText(this, R.string.permission_external_storage_neverask, Toast.LENGTH_SHORT).show();
+    }
 }

app/src/main/res/values/strings.xml

@@ -253,6 +253,9 @@
     <string name="full_file_path_enable_summary">View the full file path</string>
     <string name="recycle_bin_title">Use Recycle Bin</string>
     <string name="recycle_bin_summary">Move a group or entry to the Recycle Bin before deleting</string>
+    <string name="permission_external_storage_rationale">Application need external storage permission</string>
+    <string name="permission_external_storage_denied">Permission_external_storage_denied</string>
+    <string name="permission_external_storage_neverask">Permission_external_storage_neverask</string>
 
     <string-array name="clipboard_timeout_options">
     	<item>5 seconds</item>