更改MKMapView用戶位置註釋

Question

我試圖將MKMapView上的用戶默認位置註釋從藍色更改爲名爲geo的自定義圖像。當我設置斷點時，它會將它設置爲地理位置，但這兩個點（用戶默認和Passenger點都是默認的紅色精確定位註釋）我是否設置了錯誤，或者是否存在某些圖像規定？

func mapView(mapView: MKMapView, viewForAnnotation annotation: MKAnnotation) -> MKAnnotationView? { 

     if annotation.isKindOfClass(PassengerLocation) == false { 

      //User location 
      let userIdentifier = "UserLocation" 
      var annotationView = mapView.dequeueReusableAnnotationViewWithIdentifier(userIdentifier) 

      if annotationView == nil { 
       annotationView = MKPinAnnotationView(annotation:annotation, reuseIdentifier:userIdentifier) 
      } 
      annotationView!.annotation = annotation 
      annotationView!.canShowCallout = true 

      // THIS IS NOT WORKING, DEFAULT RED PIN POINT STILL SHOWING 
      annotationView!.image = UIImage(named: "geo") 
      return annotationView 


     } 

     let identifier = "PassengerLocation" 

     if let annotationView = mapView.dequeueReusableAnnotationViewWithIdentifier(identifier) { 
      annotationView.annotation = annotation 

      return annotationView 
     } else { 
      let annotationView = MKPinAnnotationView(annotation:annotation, reuseIdentifier:identifier) 
      annotationView.enabled = true 
      annotationView.canShowCallout = true 

      let btn = UIButton(type: .DetailDisclosure) 
      annotationView.rightCalloutAccessoryView = btn 

      return annotationView 
     } 

    } 

Answer 1

如果要定製圖像，請使用常規MKAnnotationView。用一個別針，你所能做的就是改變顏色。

Answer 2

這工作：

func mapView(mapView: MKMapView, viewForAnnotation annotation: MKAnnotation) -> MKAnnotationView? { 
     if annotation.isEqual(mapView.userLocation) { 
     let annotationView = MKAnnotationView(annotation: annotation, reuseIdentifier: "userLocation") 
     annotationView.image = UIImage(named: "geo") 
     return annotationView 
    } 
} 

Answer 3

它的工作對我來說

func mapView(mapView: MKMapView, viewForAnnotation annotation: MKAnnotation) -> MKAnnotationView? { 

    // want to show a custom image if the annotation is the user's location. 
    guard !annotation.isKindOfClass(MKUserLocation) else { 
     let annotationView = MKAnnotationView(annotation: annotation, reuseIdentifier: "userLocation") 
     annotationView.image = UIImage(named: "icon_coordinates_self") 
     return annotationView 
     //return nil 
    } 

    let annotationIdentifier = "AnnotationIdentifier" 

    var annotationView: MKAnnotationView? 
    if let dequeuedAnnotationView = mapView.dequeueReusableAnnotationViewWithIdentifier(annotationIdentifier) { 
     annotationView = dequeuedAnnotationView 
     annotationView?.annotation = annotation 
    } 
    else { 
     let av = MKAnnotationView(annotation: annotation, reuseIdentifier: annotationIdentifier) 
     av.rightCalloutAccessoryView = UIButton(type: .DetailDisclosure) 
     annotationView = av 
    } 

    if let annotationView = annotationView { 
     // Configure your annotation view here 
     annotationView.canShowCallout = true 
     annotationView.image = UIImage(named: "Annotation_map") 
    } 

    return annotationView 
}