@Override
 protected void onProgressUpdate(Integer... values) {
   notifier.onProgresUpdate(values[0], values[1]);
 }
 @Override
 protected void onCancelled(String result) {
   notifier.OnComplete(null);
 }
 @Override
 protected void onCancelled() {
   notifier.OnComplete(null);
 }
 @Override
 protected void onPostExecute(String result) {
   notifier.OnComplete(result);
 }