Android things on raspberry - Send push notification from firebase

Question

I'm making a POC in which I'm sending a notification from firebase console to the raspberry running android things.

This worked well when the code was on a smartphone, and when I moved it to the raspberry, nothing works anymore. I can see in the raspberry console (in Android Studio) that the notification is somewhat seen by the rpi3, but the onMessageReceived is not triggered...

Here is some code:

My manifest:

<service
    android:enabled="true"
    android:exported="true"
    android:name=".MyFirebaseMessagingService">
    <intent-filter>
        <action android:name="com.google.firebase.MESSAGING_EVENT"/>
    </intent-filter>
</service>

The subscribing:

private void subscribeToPushService() {
    FirebaseMessaging.getInstance().subscribeToTopic("news");

    Log.d("AndroidBash", "Subscribed");
    Toast.makeText(MainActivity.this, "Subscribed", Toast.LENGTH_SHORT).show();

    String token = FirebaseInstanceId.getInstance().getToken();
}

The service:

public class MyFirebaseMessagingService extends FirebaseMessagingService {

    private static final String TAG = "FirebaseMessageService";

    @Override
    public void onMessageReceived(RemoteMessage remoteMessage) {
        Log.d(TAG, "NOTIF");
    }
}

And finally the notification I send with the firebase console, I really don't understand where I messed up, the package name seems ok...

Thx for reading!

Answer 1

Seems DP5 of Android Things still didn't support Firebase Notifications (from Official Overview):

Android Things supports a subset of the Google APIs for Android. The following table breaks down API support in Android Things:

Unavailable APIs:

AdMob

Android Pay

Drive

Firebase App Indexing

Firebase Authentication

Firebase Dynamic Links

Firebase Invites

Firebase Notifications

Play Games

Sign-In