@Override
  protected void onDestroy() {
    mPlaybackManager.dispose();
    mPlaybackHandler = null;

    super.onDestroy();
  }
 @Override
 protected void onDestroy() {
   if (mGetFindPassWordHandler != null) {
     mGetFindPassWordHandler.cancle();
     mGetFindPassWordHandler = null;
   }
   super.onDestroy();
 }