ios - Swift - MKPinAnnotation 图像问题

Question

我正在尝试将我的 pin 注释图像更改为 pin 以外的其他内容。

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

        if annotation is MKUserLocation {
            //return nil so map view draws "blue dot" for standard user location
            return nil
        }

        let reuseId = "pin"

        var pinView = mapView.dequeueReusableAnnotationViewWithIdentifier(reuseId) as? MKPinAnnotationView
        if pinView == nil {
            pinView = MKPinAnnotationView(annotation: annotation, reuseIdentifier: reuseId)
            pinView!.canShowCallout = true
            pinView!.animatesDrop = true
            pinView!.pinColor = .Green
            pinView!.image = UIImage(named: "icon1.png")

            // Add image to left callout
            var mugIconView = UIImageView(image: UIImage(named: "test.png"))
            pinView!.leftCalloutAccessoryView = mugIconView

            // Add detail button to right callout
            var calloutButton = UIButton.buttonWithType(.DetailDisclosure) as UIButton
            pinView!.rightCalloutAccessoryView = calloutButton
        }
        else {
            pinView!.annotation = annotation
        }

        return pinView

除了更改图钉图像外，一切正常。我有一个自定义点注释子类，它是这个

我已经搜索了几个小时，但我发现的所有其他 SO 问题都没有帮助。如果有任何帮助，我将不胜感激……谢谢。

更新了答案

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

    if annotation is MKUserLocation {
        //return nil so map view draws "blue dot" for standard user location
        return nil
    }

    var pinView = mapView.dequeueReusableAnnotationViewWithIdentifier("pin")

    if pinView == nil {
        pinView = MKAnnotationView(annotation: annotation, reuseIdentifier: "pin")
        pinView!.canShowCallout = true
        pinView!.image = UIImage(named: "test.png")

        // Add image to left callout
        var mugIconView = UIImageView(image: UIImage(named: "test.png"))
        pinView!.leftCalloutAccessoryView = mugIconView

        // Add detail button to right callout
        var calloutButton = UIButton.buttonWithType(.DetailDisclosure) as UIButton
        pinView!.rightCalloutAccessoryView = calloutButton
    }
    else {
        pinView!.annotation = annotation
    }

    return pinView
}

Answer 1

您需要 MKAnnotationView，而不是 MKPinAnnotationView。 Pin 注释无法自定义其图像。

参见 this SO answer for additional details