using Android.OS; using Android.Support.V7.App; using Android.Support.V7.Widget; namespace ezxamairn.Droid { public class BaseActivity : AppCompatActivity { protected override void OnCreate(Bundle savedInstanceState) { base.OnCreate(savedInstanceState); SetContentView(LayoutResource); Toolbar = FindViewById(Resource.Id.toolbar); if (Toolbar != null) { SetSupportActionBar(Toolbar); SupportActionBar.SetDisplayHomeAsUpEnabled(true); SupportActionBar.SetHomeButtonEnabled(true); } } public Toolbar Toolbar { get; set; } protected virtual int LayoutResource { get; } protected int ActionBarIcon { set { Toolbar?.SetNavigationIcon(value); } } } }