从UIKit调用的SwiftUI模式中的取消按钮

import SwiftUI
import UIKit

struct ContentView: View {
    var body: some View {
        VStack {
            Text("Hello, SwiftUI!")
                .font(.largeTitle)
            
            Button(action: {
                // 执行取消操作
                self.cancelAction()
            }) {
                Text("取消")
                    .font(.title)
                    .foregroundColor(.white)
                    .padding()
                    .background(Color.red)
                    .cornerRadius(10)
            }
        }
    }
    
    func cancelAction() {
        // 在这里执行取消操作
        // 可以通过UIKit中的UIViewController来进行相关操作
        let viewController = UIHostingController(rootView: EmptyView())
        UIApplication.shared.windows.first?.rootViewController = viewController
    }
}

// 在UIKit中调用SwiftUI视图
class UIKitViewController: UIViewController {
    override func viewDidLoad() {
        super.viewDidLoad()
        
        let contentView = ContentView()
        let hostingController = UIHostingController(rootView: contentView)
        addChild(hostingController)
        view.addSubview(hostingController.view)
        hostingController.view.translatesAutoresizingMaskIntoConstraints = false
        hostingController.view.topAnchor.constraint(equalTo: view.topAnchor).isActive = true
        hostingController.view.leadingAnchor.constraint(equalTo: view.leadingAnchor).isActive = true
        hostingController.view.trailingAnchor.constraint(equalTo: view.trailingAnchor).isActive = true
        hostingController.view.bottomAnchor.constraint(equalTo: view.bottomAnchor).isActive = true
        hostingController.didMove(toParent: self)
    }
}