Self-Review Exercises

7.1. 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) __________ value.