Icon list optimization

app/src/main/java/com/kunzisoft/keepass/activities/fragments/IconCustomFragment.kt

@@ -31,8 +31,10 @@ class IconCustomFragment : IconFragment<IconImageCustom>() {
         return R.layout.fragment_icon_grid
     }
 
-    override fun defineIconList(): List<IconImageCustom> {
-        return mDatabase?.getCustomIconList() ?: listOf()
+    override fun defineIconList() {
+        mDatabase?.doForEachCustomIcons { customIcon ->
+            iconPickerAdapter.addIcon(customIcon, false)
+        }
     }
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {

app/src/main/java/com/kunzisoft/keepass/activities/fragments/IconFragment.kt

@@ -51,7 +51,7 @@ abstract class IconFragment<T: IconImageDraw> : StylishFragment(),
 
     abstract fun retrieveMainLayoutId(): Int
 
-    abstract fun defineIconList(): List<T>
+    abstract fun defineIconList()
 
     override fun onAttach(context: Context) {
         super.onAttach(context)
@@ -69,7 +69,8 @@ abstract class IconFragment<T: IconImageDraw> : StylishFragment(),
 
         CoroutineScope(Dispatchers.IO).launch {
             val populateList = launch {
-                iconPickerAdapter.setList(defineIconList())
+                iconPickerAdapter.clear()
+                defineIconList()
             }
             withContext(Dispatchers.Main) {
                 populateList.join()

app/src/main/java/com/kunzisoft/keepass/activities/fragments/IconStandardFragment.kt

@@ -29,8 +29,10 @@ class IconStandardFragment : IconFragment<IconImageStandard>() {
         return R.layout.fragment_icon_grid
     }
 
-    override fun defineIconList(): List<IconImageStandard> {
-        return mDatabase?.getStandardIconList() ?: listOf()
+    override fun defineIconList() {
+        mDatabase?.doForEachStandardIcons { standardIcon ->
+            iconPickerAdapter.addIcon(standardIcon, false)
+        }
     }
 
     override fun onIconClickListener(icon: IconImageStandard) {

app/src/main/java/com/kunzisoft/keepass/adapters/IconPickerAdapter.kt

@@ -23,12 +23,14 @@ class IconPickerAdapter<I: IconImageDraw>(val context: Context, private val tint
     val lastPosition: Int
         get() = iconList.lastIndex
 
-    fun addIcon(icon: I) {
+    fun addIcon(icon: I, notify: Boolean = true) {
         if (!iconList.contains(icon)) {
             iconList.add(icon)
+            if (notify) {
                 notifyItemInserted(iconList.indexOf(icon))
             }
         }
+    }
 
     fun updateIcon(icon: I) {
         val index = iconList.indexOf(icon)
@@ -74,6 +76,10 @@ class IconPickerAdapter<I: IconImageDraw>(val context: Context, private val tint
         return iconList.filter { it.selected }
     }
 
+    fun clear() {
+        iconList.clear()
+    }
+
     fun setList(icons: List<I>) {
         iconList.clear()
         icons.forEach { iconImage ->

app/src/main/java/com/kunzisoft/keepass/database/element/Database.kt

@@ -103,8 +103,8 @@ class Database {
             return mDatabaseKDB?.iconsManager ?: mDatabaseKDBX?.iconsManager ?: IconsManager()
         }
 
-    fun getStandardIconList(): List<IconImageStandard> {
-        return iconsManager.getStandardIconList()
+    fun doForEachStandardIcons(action: (IconImageStandard) -> Unit) {
+        return iconsManager.doForEachStandardIcon(action)
     }
 
     fun getStandardIcon(iconId: Int): IconImageStandard {
@@ -114,8 +114,8 @@ class Database {
     val allowCustomIcons: Boolean
         get() = mDatabaseKDBX != null
 
-    fun getCustomIconList(): List<IconImageCustom> {
-        return iconsManager.getCustomIconList()
+    fun doForEachCustomIcons(action: (IconImageCustom) -> Unit) {
+        return iconsManager.doForEachCustomIcon(action)
     }
 
     fun getCustomIcon(iconId: UUID): IconImageCustom {

app/src/main/java/com/kunzisoft/keepass/database/element/icon/IconsManager.kt

@@ -39,8 +39,10 @@ class IconsManager {
         return standardCache[searchIconId]
     }
 
-    fun getStandardIconList(): List<IconImageStandard> {
-        return standardCache
+    fun doForEachStandardIcon(action: (IconImageStandard) -> Unit) {
+        standardCache.forEach { icon ->
+            action.invoke(icon)
+        }
     }
 
     /*
@@ -73,14 +75,6 @@ class IconsManager {
         }
     }
 
-    fun getCustomIconList(): List<IconImageCustom> {
-        val list = ArrayList<IconImageCustom>()
-        customCache.doForEachBinary { key, binary ->
-            list.add(IconImageCustom(key, binary))
-        }
-        return list
-    }
-
     fun doForEachCustomIcon(action: (IconImageCustom) -> Unit) {
         customCache.doForEachBinary { key, binary ->
             action.invoke(IconImageCustom(key, binary))