用于MKAnnotationView的自定义视图Xib按钮点击

import MapKit

class CustomAnnotationView: MKAnnotationView {
    var button: UIButton!

    override init(annotation: MKAnnotation?, reuseIdentifier: String?) {
        super.init(annotation: annotation, reuseIdentifier: reuseIdentifier)
        
        // 创建按钮
        button = UIButton(type: .custom)
        button.frame = CGRect(x: 0, y: 0, width: 50, height: 50)
        button.setTitle("点击", for: .normal)
        button.addTarget(self, action: #selector(buttonClicked), for: .touchUpInside)
        
        // 将按钮添加到标注视图上
        addSubview(button)
    }
    
    @objc func buttonClicked() {
        // 按钮点击事件处理逻辑
        print("按钮被点击了")
    }
    
    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
}

func mapView(_ mapView: MKMapView, viewFor annotation: MKAnnotation) -> MKAnnotationView? {
    if annotation is MKUserLocation {
        return nil
    }
    
    let identifier = "CustomAnnotation"
    var annotationView = mapView.dequeueReusableAnnotationView(withIdentifier: identifier) as? CustomAnnotationView
    
    if annotationView == nil {
        annotationView = CustomAnnotationView(annotation: annotation, reuseIdentifier: identifier)
    } else {
        annotationView?.annotation = annotation
    }
    
    return annotationView
}