protected void onActivityResult(int requestCode, int resultCode, Intent intent) {

    if (requestCode == 0 && intent != null && intent.getBooleanExtra("refresh", false)) {
      LoadVideoAsyncTask task = new LoadVideoAsyncTask();
      task.execute(0);
      mAdapter.notifyDataSetChanged();
    }
  };
 @Override
 protected void onCreate(Bundle savedInstanceState) {
   // TODO Auto-generated method stub
   super.onCreate(savedInstanceState);
   mContext = this;
   setContentView(R.layout.activity_video_set);
   LoadVideoAsyncTask task = new LoadVideoAsyncTask();
   task.execute(0);
 }
 @Override
 public void handleMessage(Message msg) {
   super.handleMessage(msg);
   switch (msg.what) {
     case HIDE_OK:
       if (mHidingDialog != null) {
         mHidingDialog.dismiss();
       }
       LoadVideoAsyncTask task = new LoadVideoAsyncTask();
       task.execute(0);
       break;
     case HIDE_FAIL:
       Toast.makeText(mContext, "隐藏失败,请稍后重试!", 1000).show();
       break;
   }
 }