androidPermissionResult.java

@Override
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
    switch (requestCode) {
        case REQUEST_LOCATION:
            if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                // Handle permission granted
            } else {
                // Handle permission denied
            }
            break;
        default: 
            super.onRequestPermissionsResult(requestCode, permissions, grantResults);
    }
}