在SwiftUI中添加自定义UIMenuController

import SwiftUI

struct CustomView: UIViewRepresentable {
    func makeUIView(context: Context) -> UIView {
        let view = UIView(frame: .zero)
        
        // 设置菜单选项
        let menuItem = UIMenuItem(title: "Custom Option", action: #selector(customAction))
        UIMenuController.shared.menuItems = [menuItem]
        
        return view
    }
    
    func updateUIView(_ uiView: UIView, context: Context) {
        // 更新视图
    }
    
    @objc func customAction() {
        // 执行自定义操作
    }
}

struct ContentView: View {
    var body: some View {
        VStack {
            Text("Hello, SwiftUI!")
                .padding()
                .background(Color.blue)
                .foregroundColor(.white)
                .cornerRadius(10)
        }
        .contextMenu {
            // 添加上下文菜单
            Button(action: {
                // 执行默认操作
            }) {
                Text("Default Option")
                Image(systemName: "star.fill")
            }
        }
    }
}

struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView()
    }
}