1. Understanding Android Events 2. Event Listeners and Callback Methods 2.1 onClick() 2.2 onLongClick() 2.3 onFocusChange() 2.4 onKey() 2.5 onTouch() 2.6 Using a separate Listener class 2.7 Using a Named Inner Class for Event Handling 2.8 Handling Events by Having Main Activity Implement Listener Interface 2.9 Handling Events by Specifying the Event Handler Method in main.xml 2.10 Handling Events by Specifying the Event Handler Method in main.xml(cont.) 3. Exercise 5