The OnCreateOptionsMenu() method is called to give an opportunity to the Activity parameter to define actions for the ActionBar. The Activity class provides a MenuInflater method, which reads the XML definition file and places the action defined on the ActionBar. The following code shows the implementation from the code bundle:

public override bool OnCreateOptionsMenu(IMenu menu)
{
    MenuInflater.Inflate(Resource.Menu.POIListViewMenu, menu);
    return base.OnCreateOptionsMenu(menu);
}