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messaging.subscribeToTopic("messaging");

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    FirebaseMessaging.onMessageOpenedApp.listen((message) {
      print('Message clicked!');
    });

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Future<void> _messageHandler(RemoteMessage message) async {
  print('background message ${message.notification!.body}');
}

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  await Firebase.initializeApp();
  FirebaseMessaging.onBackgroundMessage(_messageHandler);
  runApp(MessagingTutorial());
}

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    FirebaseMessaging.onMessage.listen((RemoteMessage event) {
      print("message recieved");
      print(event.notification!.body);
      showDialog(
          context: context,
          builder: (BuildContext context) {
            return AlertDialog(
              title: Text("Notification"),
              content: Text(event.notification!.body!),
              actions: [

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    FirebaseMessaging.onMessage.listen((RemoteMessage event) {
        print("message recieved");
        print(event.notification!.body);
    });
    FirebaseMessaging.onMessageOpenedApp.listen((message) {
      print('Message clicked!');
    });

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class _MyHomePageState extends State<MyHomePage> {

    late FirebaseMessaging messaging;
    @override
    void initState() { 
    super.initState();
    messaging = FirebaseMessaging.instance;
    messaging.getToken().then((value){
        print(value);
    });

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dependencies:
  flutter:
    sdk: flutter
  cupertino_icons: ^1.0.2
  firebase_analytics: ^8.0.2
  firebase_core: ^1.1.0
  firebase_messaging: ^9.1.3

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class Students {
 late String name;
}

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class Students {
 String? name;
}

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class MyHomePage extends StatefulWidget {
   final String title;
  MyHomePage({Key? key, required this.title}) : super(key: key);