如何在SwiftUI中创建UISearchBar

import SwiftUI
import UIKit

struct SearchBar: UIViewRepresentable {
    
    // 实现UIViewRepresentable协议的方法
    
    func makeUIView(context: Context) -> UISearchBar {
        let searchBar = UISearchBar()
        searchBar.placeholder = "搜索"
        searchBar.delegate = context.coordinator
        return searchBar
    }
    
    func updateUIView(_ uiView: UISearchBar, context: Context) {
        // 不需要实现任何内容
    }
    
    // 实现协调器（Coordinator）类
    
    func makeCoordinator() -> Coordinator {
        return Coordinator()
    }
    
    class Coordinator: NSObject, UISearchBarDelegate {
        func searchBar(_ searchBar: UISearchBar, textDidChange searchText: String) {
            // 处理搜索文本变化事件
        }
    }
}

struct ContentView: View {
    var body: some View {
        NavigationView {
            VStack {
                List {
                    // 列表项内容
                }
            }
            .navigationBarTitle(Text("标题"))
            .navigationBarItems(trailing: SearchBar())
        }
    }
}