SwiftUI:在列表下方定位按钮

import SwiftUI

struct ContentView: View {
    @State private var items = ["Item 1", "Item 2", "Item 3"]

    var body: some View {
        NavigationView {
            List(items, id: \.self) { item in
                Text(item)
            }
            .navigationBarTitle("List")
            .navigationBarItems(trailing:
                Button(action: {
                    // 按钮点击事件
                }) {
                    Text("Button")
                }
            )
            .padding(.bottom) // 添加底部间距
            .overlay(
                Spacer() // 占据剩余空间
            )
        }
    }
}

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