ios - Swift, MapKit - changing custom annotation on tap

Question

I have a custom SVG for annotations. I set the size when initially laying them out. On tap, the custom SVG must change to a different SVG so I set it again with the code below. The problem is: tapping makes the annotation jump to a different part of the screen (a little left and up). How do I keep the annotation in the same spot when tapping?

Thanks.

    func mapView(_ mapView: MKMapView, didSelect view: MKAnnotationView) {
        
        if let pin = view.annotation as? ShopItem {

            view.image = activeShopPinImage
            view.frame.size = CGSize(width: 15.0, height: 15.0)
        }
    }
}

Answer 1

等待大神答复