private void OnDidDeselectAnnotationView(object sender, MKAnnotationViewEventArgs e)
        {
            CustomMKAnnotationView customView = e.View as CustomMKAnnotationView;
            //customPinView = new UIView();

            //if (customView.Name.Equals("Xamarin"))
            //{
            //    customPinView.Frame = new CGRect(0, 0, 200, 84);
            //    var image = new UIImageView(new CGRect(0, 0, 200, 84));
            //    image.Image = UIImage.FromFile("xamarin.png");
            //    customPinView.AddSubview(image);
            //    customPinView.Center = new CGPoint(0, -(e.View.Frame.Height + 75));
            //    e.View.AddSubview(customPinView);
            //}
        }
        protected override MKAnnotationView GetViewForAnnotation(MKMapView mapView, IMKAnnotation annotation)
        {
            MKAnnotationView annotationView = null;

            if (annotation is MKUserLocation)
            {
                return(null);
            }

            var customPin = GetCustomPin(annotation as MKPointAnnotation);

            if (customPin == null)
            {
                //throw new Exception("Custom pin not found");
            }
            else
            {
                if (annotationView == null)
                {
                    annotationView = new CustomMKAnnotationView(annotation, customPin.Name == null ? "" : customPin.Name);

                    UILabel label = new UILabel();

                    label.Text      = customPin.Number == null ? "" : customPin.Number;
                    label.TextColor = UIColor.Black;

                    label.Frame         = new CGRect(0, 0, 20, 20);
                    label.TextAlignment = UITextAlignment.Center;

                    UIView f = new UIView();
                    f.Frame = new CGRect(5, 5, 20, 20);

                    f.Layer.CornerRadius = 10;
                    f.BackgroundColor    = UIColor.White;

                    f.AddSubview(label);

                    //Debug.WriteLine("INPUT COLOR: " + customPin.Color);
                    //Debug.WriteLine("GET COLOR: " + GetPin(customPin.Color));
                    annotationView.Image = UIImage.FromFile(GetPin(customPin.Color));



                    //annotationView.CalloutOffset = new CGPoint(0, 0);
                    //annotationView.LeftCalloutAccessoryView = new UIImageView(UIImage.FromFile("monkey.png"));
                    var icon = new UIButton();
                    icon.Frame = new CGRect(0, 0, 45, 45);
                    icon.SetBackgroundImage(UIImage.FromFile("goIcon.png"), UIControlState.Normal);
                    icon.TouchDown           += Icon_TouchDown;
                    icon.FocusGroupIdentifier = label.Text;

                    annotationView.RightCalloutAccessoryView = icon;

                    //((CustomMKAnnotationView)annotationView).Name = customPin.Name;
                    //((CustomMKAnnotationView)annotationView).Url = customPin.Url;

                    annotationView.AddSubview(f);
                }
                annotationView.CanShowCallout = true;
            }


            //annotationView = mapView.DequeueReusableAnnotation(customPin.Name);


            return(annotationView);
        }