Improve notification icon initialization and fallback

icon_launcher.yaml

@@ -4,7 +4,7 @@ icons_launcher:
     android:
       enable: true
       image_path: "assets/Florid.png"
-      notification_image: "assets/monochrome.png"
+      # notification_image: "assets/monochrome.png"
       # adaptive_background_color: '#ffffff'
       adaptive_background_image: "assets/Background.png"
       adaptive_foreground_image: "assets/Foreground.png"

lib/main.dart

@@ -7,8 +7,14 @@ import 'providers/download_provider.dart';
 import 'providers/settings_provider.dart';
 import 'screens/home_screen.dart';
 import 'services/fdroid_api_service.dart';
+import 'services/notification_service.dart';
+
+void main() async {
+  WidgetsFlutterBinding.ensureInitialized();
+
+  // Initialize notification service and request permission
+  await NotificationService().init();
 
-void main() {
   runApp(const FloridApp());
 }
 
@@ -65,7 +71,6 @@ class FloridApp extends StatelessWidget {
       ],
       child: Consumer<SettingsProvider>(
         builder: (context, settings, _) {
-          
           return MaterialApp(
             title: 'Florid - F-Droid Client',
             debugShowCheckedModeBanner: false,

lib/services/notification_service.dart

@@ -1,4 +1,5 @@
 import 'package:flutter/foundation.dart';
+import 'package:flutter/services.dart';
 import 'package:flutter_local_notifications/flutter_local_notifications.dart';
 
 class NotificationService {
@@ -18,17 +19,33 @@ class NotificationService {
   Future<void> init() async {
     _flutterLocalNotificationsPlugin = FlutterLocalNotificationsPlugin();
 
-    const AndroidInitializationSettings androidInitializationSettings =
-        AndroidInitializationSettings('ic_notification');
-
-    const InitializationSettings initializationSettings =
-        InitializationSettings(android: androidInitializationSettings);
-
-    await _flutterLocalNotificationsPlugin.initialize(
-      initializationSettings,
-      onDidReceiveNotificationResponse: _onNotificationTapped,
+    const InitializationSettings customIconSettings = InitializationSettings(
+      android: AndroidInitializationSettings('ic_notification'),
     );
 
+    const InitializationSettings fallbackIconSettings = InitializationSettings(
+      android: AndroidInitializationSettings('@mipmap/ic_launcher'),
+    );
+
+    try {
+      await _flutterLocalNotificationsPlugin.initialize(
+        customIconSettings,
+        onDidReceiveNotificationResponse: _onNotificationTapped,
+      );
+    } on PlatformException catch (e) {
+      if (e.code == 'invalid_icon') {
+        debugPrint(
+          'Notification icon ic_notification missing, falling back to launcher icon: $e',
+        );
+        await _flutterLocalNotificationsPlugin.initialize(
+          fallbackIconSettings,
+          onDidReceiveNotificationResponse: _onNotificationTapped,
+        );
+      } else {
+        rethrow;
+      }
+    }
+
     // Request notification permission on Android 13+
     await requestPermission();