Foreground service not receiving location updates in Android 7.0+ when screen is off

Question

I am trying to create an Android application that continuously logs device location data in realtime while the device screen is off. My code works correctly with Android 6.0 and

Answer 1

LocationServices.FusedLocationApi is deprecated.

I just refactored my App as follows. Hope it helps:

This is what I am calling in the onCreate-Method of my Service:

public void start(Context ctx) {
        FusedLocationProviderClient client = LocationServices
                .getFusedLocationProviderClient(ctx);
        //Define quality of service:
        LocationRequest request = LocationRequest.create();
        request.setInterval(1000); //Every second
        request.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
        if (locCallback != null) {
            client.removeLocationUpdates(locCallback);
        }
        locCallback = createNewLocationCallback();
        client.requestLocationUpdates(request, locCallback, null);
}

And this is the method for creating the Callback:

private LocationCallback createNewLocationCallback() {
    LocationCallback locationCallback = new LocationCallback() {
        @Override
        public void onLocationResult(LocationResult result) {
            Location loc = result.getLastLocation();
            // Do something with the location (may be null!)
        }
    };
    return locationCallback;
}

Guess, I also found that somewhere as example, but did not keep the reference.

I do not have Oreo on my own. But some testers confirmed, that it works.

To keep the service in foreground, I am just calling "startForeground" afterwards in the onCreate method of my service.