@Override
 protected boolean checkStatus(JSONObject response) {
   return ExtraApi.checkStatus(response);
 }
 @Override
 protected void refreshData() {
   ExtraApi.getNotificationList(
       mContext, BUApplication.username, from, to, listener, errorListener);
   // ExtraApi.getNotificationList(mContext, "manoflake", from, to, listener, errorListener);
 }