[firebase_messaging] Unresolved reference: firebasemessaging

[VictorUvarov]

Describe the bug
In the README for background messages. The example for Application.java imports import io.flutter.plugins.firebasemessaging.FlutterFirebaseMessagingService; If you create a new project there is no FlutterFirebaseMessagingService class in the Java code android.main.java.io.flutter.plugins folder. Are we supposed to create this class ourselves?

To Reproduce
Steps to reproduce the behavior:

1. Create new flutter project
2. read README

Expected behavior
An implementation example of how to handle import io.flutter.plugins.firebasemessaging.FlutterFirebaseMessagingService;

Additional context
Maybe I am wrong and somehow the Flutter firebase_messaging injects the code?

[mohitjadav86]

in my case there is same issue i solve this by
creating an new MainActivity.java

public class MainActivity extends FlutterActivity {

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    GeneratedPluginRegistrant.registerWith(this);
  }
}

Hope this one can help you

[baobabCode]

It is what I have in this class already, unfortunately it doesn't work.

[iapicca]

Hi @VictorUvarov
does the solution proposed by @Mohitjadav works for you?

Hi @DjivaCanessane
can you please provide your updated flutter doctor -v
and your flutter run --verbose?
Also, to better address the issue, would be helpful
if you could post a minimal code sample
or the steps to reproduce the problem.
Thank you

[VictorUvarov]

@Mohitjadav solutions is what flutter automatically creates in the MainActivity.java or MainActivity.kt. My question is related to FCM and having to create my own FlutterApplication and my own FlutterFirebaseMessagingService as shown in the README. Do I have to create my own FlutterFirebaseMessagingService to handle background messages correctly? @iapicca

[gerryhigh]

@VictorUvarov that class already exists in the plugin.

https://github.com/FirebaseExtended/flutterfire/blob/master/packages/firebase_messaging/android/src/main/java/io/flutter/plugins/firebasemessaging/FlutterFirebaseMessagingService.java

[VictorUvarov]

Does the service work in Kotlin or only Java?

[kaparray]

@VictorUvarov In my project on Kotlin not works

[msarkrish]

@kaparray Are you solved this problem and written code in Kotlin. I need that in Kotlin. i have one doubt why we need to create new kotlin file Application.kt because i already have some native code in mainActivity file with kotlin.

[iapicca]

Could everyone who still has this problem please file a new issue with the exact descriptions what happens, logs and the output of 'flutter doctor -v' please.
All system setups can be slightly different so it's always better to open new issues and reference related issues.

[JFernandoGomez]

Please add the correct implementation guide for the latest version of Flutter which enables MainActivity.kt and kotlin file