改变市场中集群注释的颜色.iOS,Swift

使用markerTintColor.

https://developer.apple.com/documentation/mapkit/mkmarkerannotationview/2873822-markertintcolor

例如

func mapView(_ mapView: MKMapView, viewFor annotation: MKAnnotation) -> MKAnnotationView? {
    let identifier = "marker"
    var view: MKMarkerAnnotationView

    if let dequeuedView = mapView.dequeueReusableAnnotationView(withIdentifier: identifier)
        as? MKMarkerAnnotationView {
        dequeuedView.annotation = annotation
        view = dequeuedView
    } else {
        view = MKMarkerAnnotationView(annotation: annotation, reuseIdentifier: identifier)
        view.markerTintColor = .blue
    }
    return view
}