如何以编程方式从SwiftUI导航堆栈中弹出UIViewControllerRepresentable

import SwiftUI

struct ContentView: View {
    @State private var isPresented = false
    
    var body: some View {
        NavigationView {
            VStack {
                Button("弹出视图") {
                    isPresented = true
                }
            }
            .navigationTitle("主视图")
            .sheet(isPresented: $isPresented) {
                PresentedViewControllerRepresentable(isPresented: $isPresented)
            }
        }
    }
}

struct PresentedViewControllerRepresentable: UIViewControllerRepresentable {
    @Binding var isPresented: Bool
    
    func makeUIViewController(context: Context) -> UIViewController {
        let viewController = PresentedViewController()
        viewController.delegate = context.coordinator
        return viewController
    }
    
    func updateUIViewController(_ uiViewController: UIViewController, context: Context) {
        // 更新视图控制器
    }
    
    func makeCoordinator() -> Coordinator {
        Coordinator(self)
    }
    
    class Coordinator: NSObject, PresentedViewControllerDelegate {
        let parent: PresentedViewControllerRepresentable
        
        init(_ parent: PresentedViewControllerRepresentable) {
            self.parent = parent
        }
        
        // 实现弹出视图控制器的代理方法
        func dismiss() {
            parent.isPresented = false
        }
    }
}

protocol PresentedViewControllerDelegate: AnyObject {
    func dismiss()
}

class PresentedViewController: UIViewController {
    weak var delegate: PresentedViewControllerDelegate?
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        let closeButton = UIButton(type: .system)
        closeButton.setTitle("关闭", for: .normal)
        closeButton.addTarget(self, action: #selector(closeButtonTapped), for: .touchUpInside)
        closeButton.translatesAutoresizingMaskIntoConstraints = false
        view.addSubview(closeButton)
        
        NSLayoutConstraint.activate([
            closeButton.centerXAnchor.constraint(equalTo: view.centerXAnchor),
            closeButton.centerYAnchor.constraint(equalTo: view.centerYAnchor)
        ])
    }
    
    @objc func closeButtonTapped() {
        delegate?.dismiss()
    }
}