Lambda Way: HeadlinesFragment

HeadlinesFragment.java

public class HeadlinesFragment extends ListFragment {
    HeadlineListener mCallback;

  public <T> void setHeadlineListener(HeadlineListener<T> listener) {
   this.mCallBack = listener;
  }

   @Override
   public void onListItemClick(ListView l, View v, int p, long i) {
     // Send the event to the host activity
     mCallback.onArticleSelected(getActivity(), p);
   }
}