注解聚类在使用UIViewRepresentable时无法工作

为了解决此问题，可以从AnnotationsClusterView中获取MapView并将其包装在UIViewRepresentable中，以便在视图层次结构中使用它。接着，使用representable视图中存储的MapView来设置annotation clustering。

以下是代码示例：

import SwiftUI
import MapKit

// Define a RepresentableUIView to wrap the AnnotationsClusterView
struct AnnotationClusterViewRepresentable: UIViewRepresentable {
    func makeUIView(context: Context) -> MKMapView {
        // Get the mapView from AnnotationsClusterView
        let mapView = AnnotationsClusterView().mapView
        
        // Set the annotation clustering using the mapView
        mapView?.delegate = context.coordinator
        mapView?.register(MKMarkerAnnotationView.self, forAnnotationViewWithReuseIdentifier: MKMapViewDefaultAnnotationViewReuseIdentifier)
        
        return mapView!
    }
    
    func updateUIView(_ mapView: MKMapView, context: Context) {
        // Update the mapView if needed
    }
    
    func makeCoordinator() -> Coordinator {
        Coordinator()
    }
    
    class Coordinator: NSObject, MKMapViewDelegate {
        // Define the necessary MKMapViewDelegate methods here if needed
    }
}

// Define the AnnotationsClusterView to get the mapView from
class AnnotationsClusterView: UIView {
    let mapView = MKMapView()
    
    override init(frame: CGRect) {
        super.init(frame: frame)
        setupMapView()
    }
    
    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
        setupMapView()
    }
    
    func setupMapView() {
        addSubview(mapView)
        mapView.translatesAutoresizingMaskIntoConstraints = false
        NSLayoutConstraint.activate([
            mapView.topAnchor.constraint(equalTo: topAnchor),
            mapView.bottomAnchor.constraint(equalTo: bottomAnchor),
            mapView.leadingAnchor.constraint(equalTo: leadingAnchor),
            mapView.trailingAnchor.constraint(equalTo: trailingAnchor)
        ])
    }
}