public override bool OnOptionsItemSelected(IMenuItem item)
{
switch (item.ItemId) {
case Resource.Id.action_edit:
Toast.MakeText (this, "You pressed edit action!", ToastLength.Short).Show ();
break;
case Resource.Id.action_save:
Toast.MakeText (this, "You pressed save action!", ToastLength.Short).Show ();
break;
}
return base.OnOptionsItemSelected(item);
}