void SetupActionBar() { Android.Support.V7.App.ActionBar actionBar = SupportActionBar; actionBar.SetDisplayShowTitleEnabled(false); actionBar.NavigationMode = (int)ActionBarNavigationMode.List; ArrayAdapter adapter = ArrayAdapter.CreateFromResource(this, Resource.Array.environments, Android.Resource.Layout.SimpleDropDownItem1Line); actionBar.SetListNavigationCallbacks(adapter, this); actionBar.SetSelectedNavigationItem(Settings.getEnvironment(this)); }