（MapView）用户位置图像更改帮助恢复

Question

我正在使用MapKit，我更改了Annotation的图像，但问题是，用户位置（蓝点）也改变了它的图片（我不希望那样）。我怎样才能恢复正常。另外，我在标注中添加了一个小按钮（正如您可能已经猜到的那样），该按钮已添加到我的位置，但它不应该在那里。我的代码如下...

func mapView(_ mapView: MKMapView, viewFor annotation: MKAnnotation) -> MKAnnotationView? { 
     if !(annotation is MKUserLocation) { 
      print("annotation is MKUserLocation") 
     } 
     var annotationView = mapView.dequeueReusableAnnotationView(withIdentifier: "identifier") 
      if annotationView == nil{ 
       annotationView = MKAnnotationView(annotation: annotation, reuseIdentifier: "identifier") 
       annotationView!.canShowCallout = true 
       annotationView!.rightCalloutAccessoryView = UIButton(type: .detailDisclosure) 

       let pinImg = UIImage(named: "curz") 
       let size = CGSize(width: 50, height: 50) 
       UIGraphicsBeginImageContext(size) 
       pinImg!.draw(in: CGRect(x: 0, y: 0, width: size.width, height: size.height)) 
       let resizedImage = UIGraphicsGetImageFromCurrentImageContext() 
       UIGraphicsEndImageContext() 
       annotationView!.image = resizedImage 
       } 
     else { 
     annotationView!.annotation = annotation 
     } 
    return annotationView 
    } 

     //Var SelectedAnnotation 
     var anotacionSeleccionada : MKPointAnnotation! 

    func mapView(_ mapView: MKMapView, annotationView view: MKAnnotationView, calloutAccessoryControlTapped control: UIControl) { 
     if control == view.rightCalloutAccessoryView { 
     anotacionSeleccionada = view.annotation as? MKPointAnnotation 
     performSegue(withIdentifier: "vista", sender: self) 
     } 
     } 


    override func prepare(for segue: UIStoryboardSegue, sender: Any?) { 
     if let destination = segue.destination as? ViewController { 
     destination.pin = anotacionSeleccionada 
     } 
    } 

Answer 1

在你viewFor annotation函数开头添加此行：

if annotation is MKUserLocation { 
    return nil 
} 

因为不想将做任何事情，如果it's的MKUserLocation。