The Action Bar
The action bar is a rectangular window area that contains the application icon, application name, menus and other navigation buttons. The action bar normally appears at the top of the window.
This chapter explains how to decorate the action bar on Android with API level 11 (Android 3.0) or higher.
The action bar is represented by the android.app.ActionBar class. It should look familiar to any Android user. Figure 6.1 shows the action bar of the Messaging application and Figure 6.2 shows that of Calendar.
Figure 6.1: The action bar of Messaging
Figure 6.2: The action bar of Calendar
The application icon and name ...