如何在iPad和纵向模式下在SwiftUI中显示侧边栏

import SwiftUI

struct ContentView: View {
    var body: some View {
        NavigationView {
            List {
                ForEach(0..<10) { index in
                    Text("Item \(index)")
                }
            }
            .listStyle(SidebarListStyle())
            .frame(minWidth: 200, idealWidth: 250, maxWidth: 300)
            
            Text("Main Content")
                .frame(maxWidth: .infinity, maxHeight: .infinity)
                .background(Color(UIColor.systemBackground))
        }
        .frame(minWidth: 1024, idealWidth: 1024, maxWidth: .infinity, minHeight: 768, idealHeight: 768, maxHeight: .infinity)
        .navigationViewStyle(DoubleColumnNavigationViewStyle())
    }
}

struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        Group {
            ContentView()
                .previewInterfaceOrientation(.portrait)
            
            ContentView()
                .previewInterfaceOrientation(.landscape)
        }
    }
}