Xamarin Mobile Application Development for Android - Second Edition

Adding actions to ActionBar

With Android 3.0 (Honeycomb, API level 11), Android introduced a uniform title, such as a widget that docks to the top of the screen, called ActionBar. It allows apps to add activity-specific actions to the top of the device screen, just below the status bar. We will define two actions for the POIListActivity class: New, to create a new POI, and Refresh, to refresh the cache of POIs from the device's local storage.

The Activity class provides the following virtual methods that can be overridden to add actions:

Virtual Method	Description
OnCreateOptionsMenu	It allows the creation of the actions either through API calls or through inflating an XML definition
OnOptionsItemSelected	It is called when an action in ...