android: fix transparent icon background on Android, closes #1462 (#1464)

apps/readest-app/src-tauri/gen/android/app/src/main/AndroidManifest.xml

@@ -9,10 +9,11 @@
 
     <application
         android:icon="@mipmap/ic_launcher"
+        android:roundIcon="@mipmap/ic_launcher"
         android:largeHeap="true"
         android:label="@string/app_name"
         android:theme="@style/Theme.readest"
-	android:hardwareAccelerated="true"
+        android:hardwareAccelerated="true"
         android:usesCleartextTraffic="${usesCleartextTraffic}">
         <activity
             android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale|smallestScreenSize|screenLayout|uiMode"

apps/readest-app/src-tauri/gen/android/app/src/main/java/com/bilingify/readest/MainActivity.kt

@@ -81,39 +81,15 @@ class MainActivity : TauriActivity(), KeyDownInterceptor {
     override fun onCreate(savedInstanceState: Bundle?) {
         enableEdgeToEdge()
         super.onCreate(savedInstanceState)
-        updateTaskDescription()
-    }
 
-    override fun onConfigurationChanged(newConfig: Configuration) {
-        super.onConfigurationChanged(newConfig)
-        updateTaskDescription()
-    }
-
-    override fun onResume() {
-        super.onResume()
-        updateTaskDescription()
-    }
-
-    private fun updateTaskDescription() {
-        val backgroundColor = if (isDarkTheme()) {
-            Color.parseColor("#2D2D2D")
-        } else {
-            Color.parseColor("#FFFFFF")
-        }
-
-        setTaskDescription(
-            ActivityManager.TaskDescription(
-                "Readest",
-                null,
-                backgroundColor
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
+            setTaskDescription(
+                ActivityManager.TaskDescription(
+                    getString(R.string.app_name),
+                    null,
+                    Color.TRANSPARENT
+                )
             )
-        )
-    }
-
-    private fun isDarkTheme(): Boolean {
-        return when (resources.configuration.uiMode and Configuration.UI_MODE_NIGHT_MASK) {
-            Configuration.UI_MODE_NIGHT_YES -> true
-            else -> false
         }
     }
 }