January 2014
Intermediate to advanced
736 pages
70h 43m
English
Content preview from Android™ How to Program, Second Edition
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4.3.3. Customizing a ListActivity’s Layout
A ListActivity’s default GUI contains only a ListView that fills the screen’s client area between Android’s top and bottom system bars (which were explained in Fig. 2.1). If a ListActivity’s GUI requires only the default ListView, then you do not need to define a separate layout for your ListActivity subclass.
The Twitter Searches app’s MainActivity displays several GUI components. For this reason you’ll define a custom layout for MainActivity. When customizing a ListActivity subclass’s GUI, the layout must contain a ListView with its Id attribute set to "@android:id/list"—the name that class ListActivity uses to reference its ListView.
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