fix: notification permission request initilalization to postFrameCallback

Author: Sembauke

mobile-app/lib/main.dart

@@ -55,6 +55,11 @@ Future<void> main({bool testing = false}) async {
 
   runApp(const FreeCodeCampMobileApp());
 
+  WidgetsBinding.instance.addPostFrameCallback((_) async {
+    await NotificationService().requestPermission();
+    await DailyChallengeNotificationService().setupNotifications();
+  });
+
   await QuickActionsService().init();
 }
 

mobile-app/lib/service/learn/daily_challenge_notification_service.dart

@@ -49,21 +49,11 @@ class DailyChallengeNotificationService {
       initializationSettings,
       onDidReceiveNotificationResponse: _onNotificationResponse,
     );
+  }
 
-    bool permissionGranted = false;
-    if (Platform.isAndroid) {
-      permissionGranted = await _flutterLocalNotificationsPlugin
-              .resolvePlatformSpecificImplementation<
-                  AndroidFlutterLocalNotificationsPlugin>()
-              ?.requestNotificationsPermission() ??
-          false;
-    } else {
-      // For iOS, we assume permission is granted after init
-      permissionGranted = true;
-    }
+  Future<void> setupNotifications() async {
+    final permissionGranted = await areSystemNotificationsEnabled();
 
-    // Auto-enable daily notifications if system permission is granted
-    // and user hasn't explicitly disabled them
     if (permissionGranted) {
       final prefs = await SharedPreferences.getInstance();
       final hasSetPreference =

mobile-app/lib/service/podcast/notification_service.dart

@@ -28,13 +28,17 @@ class NotificationService {
     );
 
     await _flutterLocalNotificationsPlugin.initialize(initializationSettings);
+  }
 
+  Future<bool> requestPermission() async {
     if (Platform.isAndroid) {
-      await _flutterLocalNotificationsPlugin
-          .resolvePlatformSpecificImplementation<
-              AndroidFlutterLocalNotificationsPlugin>()
-          ?.requestNotificationsPermission();
+      return await _flutterLocalNotificationsPlugin
+              .resolvePlatformSpecificImplementation<
+                  AndroidFlutterLocalNotificationsPlugin>()
+              ?.requestNotificationsPermission() ??
+          false;
     }
+    return true;
   }
 
   Future<void> showNotification(String title, String body) async {