如何在SwiftUI中显示现有视图中的另一个视图

import SwiftUI

struct ContentView: View {
    @State private var isDetailViewVisible = false

    var body: some View {
        VStack {
            Button(action: {
                self.isDetailViewVisible.toggle()
            }) {
                Text("Show Detail View")
            }

            if isDetailViewVisible {
                DetailView()
            }
        }
    }
}

struct DetailView: View {
    var body: some View {
        Text("This is the detail view.")
            .padding()
            .background(Color.gray.opacity(0.2))
            .cornerRadius(10)
    }
}

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