[flutter-chat-demo]registerNotification.dart

void registerNotification() {
  firebaseMessaging.requestNotificationPermissions();

  firebaseMessaging.configure(onMessage: (Map<String, dynamic> message) {
    print('onMessage: $message');
    Platform.isAndroid
        ? showNotification(message['notification'])
        : showNotification(message['aps']['alert']);
    return;
  }, onResume: (Map<String, dynamic> message) {
    print('onResume: $message');
    return;
  }, onLaunch: (Map<String, dynamic> message) {
    print('onLaunch: $message');
    return;
  });

  firebaseMessaging.getToken().then((token) {
    print('token: $token');
    Firestore.instance
        .collection('users')
        .document(currentUserId)
        .updateData({'pushToken': token});
  }).catchError((err) {
    Fluttertoast.showToast(msg: err.message.toString());
  });
}

What is showNotification() function
Is it a user-defined function or pre-defined function?

What is showNotification() function
Is it a user-defined function or pre-defined function?

same question here ? Did you get the answer @thakersamveg608 ?

Hi there, showNotification() is my defined function, it was defined here https://github.com/duytq94/flutter-chat-demo/blob/master/lib/home.dart#L97