Test if user have enabled the Android Location Service.

sample.java

private boolean locationServiceEnabled() {
        final LocationManager locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);

        if (locationManager != null) {
            try {
                return locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER) ||
                        locationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
            } catch (final Exception e) {
                Timber.e(e);
                return false;
            }
        } else {
            return false;
        }
    }