@Override
 protected void onCancelled(BitmapDrawable value) {
   super.onCancelled(value);
   synchronized (mPauseWorkLock) {
     mPauseWorkLock.notifyAll();
   }
 }
 @Override
 protected void onCancelled() {
   super.onCancelled();
   if (pd != null) {
     pd.dismiss();
   }
 }