尝试在 Swift MapView 中进行自定义标注并更改标记颜色

如何解决尝试在 Swift MapView 中进行自定义标注并更改标记颜色

我对 Swift 和 Xcode 非常陌生，所以如果你能回答我的问题，请保持友善，不要做任何假设:-)。

我想在使用自定义图标和自定义标注视图的地图上添加自定义注释。

我找到了可以执行自定义标注 (Swift - Custom MKAnnotationView,set label title) 的代码，但是这不允许我的自定义图标工作。

这是我的代码

func mapView(_ mapView: MKMapView,viewFor annotation: MKAnnotation) -> MKAnnotationView? {
    
    // myCustomAnnotation allows me to send private data so I can change things like marker color
    guard let annotation = annotation as? myCustomAnnotation
     
     else {
            
            return nil
        }
    
    /* This is the code for doing the "Hello World" callout
    var customCallout = mapView.dequeueReusableAnnotationView(withIdentifier: "MyMarker")
    if customCallout == nil
    {
        customCallout = CustomAnnotationView.init(annotation: annotation,reuseIdentifier: "MyMarker")
        customCallout?.setSelected(true,animated: true)
    }
    // End of code for custom callout

    // Start of code for changing Marker color and custom image for marker
    let annotationView = MKMarkerAnnotationView(annotation: annotation,reuseIdentifier: "MyMarker")
    
    annotationView.markerTintColor = UIColor.yellow
    
    let annotationColor: String = annotation.annotationColor!

    annotationView.glyphImage = UIImage(named: "myCustomImage")
    // End of code for changing color of marker and changing image of marker

    // If I return annotationView then the pin color changes and the custom icon for the pin shows but the "Hello World" Box does not show
    //return annotationView
    
    // This will cause the "Hello World" to show but the default pin icon and color is used
    // Looking for a way to do both
    return customCallout
}

// Code for custom Marker
class CustomAnnotationView : MKPinAnnotationView
{
    let selectedLabel:UILabel = UILabel.init(frame:CGRect(x: 0,y: 0,width: 140,height: 38))

    override func setSelected(_ selected: Bool,animated: Bool)
    {
        super.setSelected(false,animated: animated)

        if(selected)
        {
            
            // Do customization,for example:
            selectedLabel.text = "Hello World!!"
            selectedLabel.textAlignment = .center
            selectedLabel.font = UIFont.init(name: "HelveticaBold",size: 15)
            selectedLabel.backgroundColor = UIColor.lightGray
            selectedLabel.layer.borderColor = UIColor.darkGray.cgColor
            selectedLabel.layer.borderWidth = 2
            selectedLabel.layer.cornerRadius = 5
            selectedLabel.layer.masksToBounds = true

            selectedLabel.center.x = 0.5 * self.frame.size.width;
            selectedLabel.center.y = -0.5 * selectedLabel.frame.height;
            self.addSubview(selectedLabel)
        }
        else
        {
            selectedLabel.removeFromSuperview()
        }
    }
}