Android™ How to Program, Second Edition

Self-Review Exercises

6.1 Fill in the blanks in each of the following statements:

a) You can create a custom view by extending class View or _________.

b) To process simple touch events for an Activity, you can override class Activity’s onTouchEvent method then use constants from class _________ (package android.view) to test which type of event occurred and process it accordingly.

c) Each SurfaceView subclass should implement the interface _____________, which contains methods that are called when the SurfaceView is created, changed (e.g., its size or orientation changes) or destroyed.

d) The d in a format specifier indicates that you’re formatting a decimal integer and the f in a format specifier indicates that you’re formatting a(n) _________ ...