如何在SwiftUI中使用zindex居中显示视图

import SwiftUI

struct ContentView: View {
    var body: some View {
        VStack {
            Text("Hello, World!")
                .font(.largeTitle)
                .padding()
                .background(Color.blue)
                .foregroundColor(.white)
                .cornerRadius(10)
                .zIndex(1) // 将该视图的层级设置为最高

            Text("Centered View")
                .font(.title)
                .padding()
                .background(Color.green)
                .foregroundColor(.white)
                .cornerRadius(10)
        }
    }
}

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