Android™ How to Program, Second Edition

DetailsFragmentListener Interface

Figure 8.42 declares the nested interface DetailsFragmentListener containing the callback methods that MainActivity implements to be notified when the user deletes a contact (line 28) and when the user touches the edit menu item to edit a contact (line 31).

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24   // callback methods implemented by MainActivity25   public interface DetailsFragmentListener26   {27      // called when a contact is deleted28      public void onContactDeleted();29 30      // called to pass Bundle of contact's info for editing31      public void onEditContact(Bundle arguments);32   }33

Fig. 8.42 | DetailsFragmentListener interface.