void InitializeServices() { // Setup Google Play Services Helper helper = new GameHelper (this); // Set Gravity and View for Popups helper.GravityForPopups = (GravityFlags.Bottom | GravityFlags.Center); helper.ViewForPopups = FindViewById<View>(Resource.Id.container); // Hook up events helper.OnSignedIn += (object sender, EventArgs e) => { signInLayout.Visibility = ViewStates.Gone; controlsLayout.Visibility = ViewStates.Visible; }; helper.OnSignInFailed += (object sender, EventArgs e) => { signInLayout.Visibility = ViewStates.Visible; controlsLayout.Visibility = ViewStates.Gone; }; helper.Initialize (); }