Separate the clickable ad process

You should separate your player’s UI logic from the process that manages ad clicks. One way to do this is to implement multiple fragments for an activity.

1. Implement one fragment to contain the MediaPlayer.

   This fragment should call notifyClick() and will be responsible for video playback.

   public class PlayerFragment extends SherlockFragment {
       ...
       public void notifyAdClick () {
           _mediaPlayer.notifyClick();
       }
       ...
   }
   
   

2. Implement a different fragment to display a UI element that indicates that an ad is clickable, monitor that UI element, and communicate user clicks to the fragment that contains the MediaPlayer.

   This fragment should declare an interface for fragment communication. The fragment captures the interface implementation during its onAttach() lifecycle method and can call the interface methods to communicate with the activity.

   public class PlayerClickableAdFragment extends SherlockFragment {
       private ViewGroup viewGroup;
       private Button button;
       OnAdUserInteraction callback;
       @Override
       public View onCreateView(LayoutInflater inflater,
                                ViewGroup container,
                                Bundle savedInstanceState) {
           // the custom fragment is defined by a custom button
           viewGroup = (ViewGroup) inflater.inflate(R.layout.fragment_player_clickable_ad,
                                                    container, false);
           button = (Button) viewGroup.findViewById(R.id.clickButton);
   
           // register a click listener to detect user interaction
           button.setOnClickListener(new View.OnClickListener() {
               @Override
               public void onClick(View v) {
                   // send the event back to the activity
                   callback.onAdClick();
               }
           });
           viewGroup.setVisibility(View.INVISIBLE);
           return viewGroup;
       }
   
       public void hide() {
           viewGroup.setVisibility(View.INVISIBLE);
       }
   
       public void show() {
           viewGroup.setVisibility(View.VISIBLE);
       }
   
       @Override
       public void onAttach(Activity activity) {
           super.onAttach(activity);
           // attaches the interface implementation
           // if the container activity does not implement the methods
           // from the interface an exception will be thrown
           try {
               callback = (OnAdUserInteraction) activity;
           } catch (ClassCastException e) {
               throw new ClassCastException(activity.toString()
                   + " must implement OnAdUserInteraction");
           }
       }
   
       // user defined interface that allows fragment communication
       // must be implemented by the container activity
       public interface OnAdUserInteraction {
           public void onAdClick();
       }
   }