public class Position {

    private static final String TAG = "Position";

    private Context context;
    private Location loc;
    public String latitude;
    public String longitude;

    public Position(Context c) {
        context=c;
        setLocation();

    }

    private void setLocation() {
        FusedLocationProviderClient fusedLocationClient;
        fusedLocationClient = LocationServices.getFusedLocationProviderClient(context);
        fusedLocationClient.getLastLocation().addOnSuccessListener((Activity) context,  new OnSuccessListener<Location>() {
            @Override
            public void onSuccess(Location location) {
                if (location != null) {
                    setLatitude(location);
                    setLongitiude(location);
                    Log.d(TAG, "Location is set!");
                } else {
                    loc = null;
                    Log.d(TAG, "Location is not set!");
                }
            }
        });
    }

    private void setLatitude(Location location) {
        this.latitude = String.valueOf(location.getLatitude());
        Log.d(TAG, latitude);   //pokazuje poprawne współrzędne
    }

    public String getLatitude() {
        return this.latitude;
    }

    private void setLongitiude(Location location) {
        this.longitude = String.valueOf(location.getLongitude());
        Log.d(TAG, longitude);  // //pokazuje poprawne współrzędne
    }

    public String getLongitude() {
        return this.longitude;
    }
}