@TargetApi(Build.VERSION_CODES.JELLY_BEAN)
 @Override
 public void onClick(View view) {
   switch (view.getId()) {
     case R.id.bt_search:
       mHotWordsFlowLayout.setVisibility(View.INVISIBLE);
       mSearchView.setVisibility(View.INVISIBLE);
       mResultView.setVisibility(View.VISIBLE);
       mIsResultShowing = true;
       boolean flag = new Random().nextBoolean();
       if (true) {
         mResultBooksListView.setVisibility(View.VISIBLE);
         mAddBooksButton.setVisibility(View.INVISIBLE);
         SearchResultBooksInfo booksInfo = getBooksInfo();
         showResultList(booksInfo);
       } else {
         mResultBooksListView.setVisibility(View.INVISIBLE);
         mAddBooksButton.setVisibility(View.VISIBLE);
       }
       break;
   }
 }