I'm trying to use Firebase Cloud Messaging to send a command to my Android app that prompts it to determine its current location. This is done in the class FCMService.
The class SingleShotLocationProvider then performs the actual work by requesting location updates using the FusedLocationProviderClient. However, the callback fusedTrackerCallback is never called ever, although the necessary permissions are granted and GPS is switched on. Why?
FCMService class
public class FCMService extends FirebaseMessagingService {
@Override
public void onMessageReceived(RemoteMessage …