void OnDidSelectAnnotationView(object sender, MKAnnotationViewEventArgs e)
{
// centralise map and freeze map updates
MapPage.CentraliseMap(new Position(e.View.Annotation.Coordinate.Latitude,
e.View.Annotation.Coordinate.Longitude));
MapPage.SetFreezeMap(true);
// create custom callout with bus info
// set background for callout
var frame = new CGRect(0, 0, 200, 84);
customPinView = new UIView {
Frame = frame,
BackgroundColor = new UIColor(0.8f, 0.8f, 0.8f, 0.3f),
Center = new CGPoint(0, -(e.View.Frame.Height + 20))
};
customPinView.Layer.BorderColor = new CGColor(0, 0, 0, 50);
customPinView.Layer.BorderWidth = 1f;
customPinView.Layer.CornerRadius = 2f;
// add text info
customPinView.Add(new UILabel {
Frame = frame,
// title - label, subtitle - address (in xamarin.forms.maps)
Text = e.View.Annotation.GetTitle() + "\n" + e.View.Annotation.GetSubtitle(),
Font = UIFont.FromName("Helvetica", 12f),
TextAlignment = UITextAlignment.Left,
AdjustsFontSizeToFitWidth = true,
LineBreakMode = UILineBreakMode.WordWrap,
Lines = 0
});
e.View.AddSubview(customPinView);
}
void OnDidDeselectAnnotationView(object sender, MKAnnotationViewEventArgs e)
{
if (!e.View.Selected)
{
customPinView.RemoveFromSuperview();
customPinView.Dispose();
customPinView = null;
MapPage.SetFreezeMap(false);
}
}
