DidSelectAnnotationView annotation tap not responding properly - xamarin.ios

Question

I have custom annotation which I have subClass from MKPointAnnotation. Adding those is working properly. I also need to detect the Annotation select method. The problem is when I tap on the annotation it doesn't hit the "DidSelectAnnotationView" at first. if I tap into another annotation like userLocation annotation then "DidSelectAnnotationView" hits. and while debugging it shows the coordinates of the annotation view is not the user location but the annotation I tap previously. and same happens after this when I tap my custom annotation it hits the method and coordinates of the method is not the userLocation one. I have added my code, could someone look into it where I missed the bits.
override public MKAnnotationView GetViewForAnnotation(MKMapView mapView, IMKAnnotation annotation)
{
string resuseId = "customAnnotation";
MKAnnotationView annotationView = mapView.DequeueReusableAnnotation(resuseId);
if (ThisIsTheCurrentLocation(mapView, annotation))
{
return null;
}
if (annotationView == null)
{
if (annotation is CustomAnnotation)
{
switch (CustomAnnotation.MarkerType)
{
case MyMarkerType.Note:
annotationView = new MKAnnotationView(annotation, resuseId);
annotationView.Image = UIImage.FromBundle("Message");
annotationView.CanShowCallout = false;
annotationView.Enabled = true;
break;
case MyMarkerType.Photo:
annotationView = new MKAnnotationView(annotation, resuseId);
annotationView.Image = UIImage.FromBundle("Photo");
annotationView.CanShowCallout = false;
break;
case MyMarkerType.Story:
annotationView = new MKAnnotationView(annotation, resuseId);
var Img = UIImage.FromBundle("Story");
annotationView.CanShowCallout = false;
break;
case MyMarkerType.Custom:
annotationView = new MKAnnotationView(annotation, resuseId);
//using (var data = NSData.FromArray(CustomAnnotation.WayPoint.Image))
//{
// var image = UIImage.LoadFromData(data);
// annotationView.Image = image;
//}
NSData data = NSData.FromArray(CustomAnnotation.WayPoint.Image);
UIImage image = UIImage.LoadFromData(data);
// UIImage finalImage = image.MaxResizeImage(21f, 20f);
annotationView.Image = image;
annotationView.CanShowCallout = false;
break;
default:
annotationView = new MKAnnotationView(annotation, resuseId);
//var imaget = FromUrl(CustomAnnotation.WayPoint.IconUrl);
//annotationView.Image = imaget;
break;
}
}
else{
annotationView.Annotation = annotation;
annotationView.CanShowCallout = false;
//(annotationView as MKPinAnnotationView).AnimatesDrop = false; // Set to true if you want to animate the pin dropping
//(annotationView as MKPinAnnotationView).PinTintColor = UIColor.Red;
annotationView.SetSelected(false, false);
}
}
return annotationView;
}
And my DidSelect Method
public override void DidDeselectAnnotationView(MKMapView mapView, MKAnnotationView view)
{
if ( view.Annotation.Coordinate.Latitude == mapView.UserLocation.Coordinate.Latitude){
return;
}
CLLocationCoordinate2D coordinates = view.Annotation.Coordinate;
mapView.DeselectAnnotation(view.Annotation, false);
// GetAnnotationClickInfo.Invoke(coordinates);
}

Answer 1

Use DidSelectAnnotationView method,
not DidDeselectAnnotationView.
public override void DidSelectAnnotationView(MKMapView mapView, MKAnnotationView view)
DidDeselectAnnotationView
DidSelectAnnotationView

Answer 2

After checking your code , I think there is a mistaken when initializing that annotationView ,you should put annotationView.Annotation = annotation; outside the condition if (annotationView == null).
Mofidy your code :
if (annotationView == null)
{
if (annotation is CustomAnnotation)
{
//custom view logic
}
else //not custom view
{
annotationView = new MKPinAnnotationView(annotation, annotationIdentifier);
}
}
else
{
annotationView.Annotation = annotation;
}
annotationView.CanShowCallout = false;
//(annotationView as MKPinAnnotationView).AnimatesDrop = false; // Set to true if you want to animate the pin dropping
//(annotationView as MKPinAnnotationView).PinTintColor = UIColor.Red;
annotationView.SetSelected(false, false);