fix msg

lib/data/provider/messaging_fcm.dart

@@ -1,57 +1,53 @@
-import 'dart:io';
-
 import 'package:fcs/data/services/messaging_service.dart';
+import 'package:firebase_core/firebase_core.dart';
 import 'package:firebase_messaging/firebase_messaging.dart';
 import 'package:logging/logging.dart';
 
 final msgLog = Logger('backgroundMessageHandler');
 
-Future<dynamic> backgroundMessageHandler(Map<String, dynamic> message) async {
-  if (message.containsKey('data')) {
-    // Handle data message
-    final dynamic data = message['data'];
-    msgLog.info("background onMessage: $message");
-  }
-
-  if (message.containsKey('notification')) {
-    // Handle notification message
-    final dynamic notification = message['notification'];
-  }
+Future<void> backgroundMessageHandler(RemoteMessage message) async {
+  await Firebase.initializeApp();
+  msgLog.info("background onMessage: $message");
 }
 
 class MessagingFCM {
   final log = Logger('MessagingFCM');
 
-  FirebaseMessaging _firebaseMessaging;
+  late FirebaseMessaging _firebaseMessaging;
 
   MessagingFCM(OnNotify onMessage,
-      {OnNotify onLaunch, OnNotify onResume, OnSetupComplete onSetupComplete}) {
-    _firebaseMessaging = FirebaseMessaging();
-    _firebaseMessaging.configure(
-      onMessage: (Map<String, dynamic> message) async {
-        log.info("onMessage: $message");
-        if (onMessage != null) _onNotify(message, onMessage);
-      },
-      onBackgroundMessage: Platform.isIOS ? null : backgroundMessageHandler,
-      onLaunch: (Map<String, dynamic> message) async {
-        log.info("onLaunch: $message");
-        if (onLaunch != null) _onNotify(message, onLaunch);
-      },
-      onResume: (Map<String, dynamic> message) async {
-        log.info("onResume: $message");
-        if (onResume != null) _onNotify(message, onResume);
-      },
+      {OnNotify? onLaunch,
+      OnNotify? onResume,
+      OnSetupComplete? onSetupComplete}) {
+    _firebaseMessaging = FirebaseMessaging.instance;
+    init(onMessage: onMessage, onSetupComplete: onSetupComplete);
+  }
+
+  init({OnNotify? onMessage, OnSetupComplete? onSetupComplete}) async {
+    NotificationSettings settings = await _firebaseMessaging.requestPermission(
+      alert: true,
+      announcement: false,
+      badge: true,
+      carPlay: false,
+      criticalAlert: false,
+      provisional: false,
+      sound: true,
     );
-    _firebaseMessaging
-        .requestNotificationPermissions(const IosNotificationSettings());
-    _firebaseMessaging.onIosSettingsRegistered
-        .listen((IosNotificationSettings settings) {
-      log.info("Settings registered: $settings");
-    });
-    _firebaseMessaging.getToken().then((String token) {
-      if (onSetupComplete != null) onSetupComplete(token);
-      log.info("Messaging Token:$token");
+
+    print('User granted permission: ${settings.authorizationStatus}');
+
+    FirebaseMessaging.onMessage.listen((RemoteMessage message) {
+      log.info("onMessage: $message");
+      if (onMessage != null) _onNotify(message.data, onMessage);
+
+      if (message.notification != null) {
+        print('Message also contained a notification: ${message.notification}');
+      }
     });
+
+    String? token = await _firebaseMessaging.getToken();
+    if (onSetupComplete != null && token != null) onSetupComplete(token);
+    log.info("Messaging Token:$token");
   }
 
   Future<void> subscribeToTopic(String topic) {