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Contextual Action Bar (CAB) - Android
A Contextual action bar (CAB) is a temporary action bar that overlays the app’s action bar for the duration of a particular sub-task.
For reading detailed article with examples: <a href="http://www.technotalkative.com/contextual-action-bar-cab-android" target="_blank">Contextual Action bar (CAB) in Android</a>
<img src="http://www.technotalkative.com/wp-content/uploads/2013/10/Android-contextual-action-bar1.png"/>