title: Can't set callback while loading user timeline using Fabric Twitter Kit in Android application
body: <p>I am using Fabric Twitter Kit for loading user timelines. However, I am not able to make callbacks work properly. I follow the official examples, but still my <code>success</code> and <code>failure</code> methods are not called.</p>
  
  <p>Here is my full code:</p>
  
  <pre><code>public class TwitterFragment extends ListFragment {
  
  
      final Callback&lt;Tweet&gt; callback = new Callback&lt;Tweet&gt;() {
          @Override
          public void success(Result&lt;Tweet&gt; result) {
              setListShown(true);
              Toast.makeText(getActivity(), "NotFail", Toast.LENGTH_LONG).show();
          }
  
          @Override
          public void failure(TwitterException e) {
              Toast.makeText(getActivity(), "Fail", Toast.LENGTH_LONG).show();
          }
      };
  
      @Override
      public void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
  
          startWork();
  
      }
  
      public void startWork() {
  
          final UserTimeline userTimeline = new UserTimeline.Builder().screenName(Config.TWITTER_ACCOUNT).build();
          final TweetTimelineListAdapter adapter = new TweetTimelineListAdapter.Builder(getActivity())
                  .setOnActionCallback(callback).setTimeline(userTimeline).setViewStyle(R.style.tw__TweetDarkStyle).build();
          setListAdapter(adapter);
      }
  
      @Override
      public View onCreateView(LayoutInflater inflater, ViewGroup container,
                               Bundle savedInstanceState) {
          return inflater.inflate(R.layout.twitter_layout, container, false);
      }
  
  }
  </code></pre>
  
  <p>Any ideas how to make everything work?</p>