MKMapView自定义UserLocation注释

import MapKit

class CustomAnnotation: NSObject, MKAnnotation {
    var coordinate: CLLocationCoordinate2D
    var title: String?
    var subtitle: String?
    
    init(coordinate: CLLocationCoordinate2D, title: String?, subtitle: String?) {
        self.coordinate = coordinate
        self.title = title
        self.subtitle = subtitle
    }
}

// 在使用MKMapView时，可以通过以下代码将自定义的UserLocation注释添加到地图上：

let mapView = MKMapView()
let userLocation = CustomAnnotation(coordinate: mapView.userLocation.coordinate, title: "My Location", subtitle: "This is my current location")
mapView.addAnnotation(userLocation)