Collapse a doubleColumn NavigationView detail in SwiftUI like with collapsed on UISplitViewController? : <p>So when I make a list in SwiftUI, I get the master-detail split view for "free".</p>

<p>So for instance with this:</p>

<pre><code>import SwiftUI

struct ContentView : View {
    var people = ["Angela", "Juan", "Yeji"]

    var body: some View {
        NavigationView {
            List {
                ForEach(people, id: \.self) { person in
                    NavigationLink(destination: Text("Hello!")) {
                        Text(person)
                    }
                }
            }
            Text("🤪")
        }
    }
}

#if DEBUG
struct ContentView_Previews : PreviewProvider {
    static var previews: some View {
        ContentView()
    }
}
#endif
</code></pre>

<p>I get a splitView if an iPad simulator is in landscape, and the first detail screen is the emoji. But if people tap on a name, the detail view is "Hello!"</p>

<p>All that is great.</p>

<p>However, if I run the iPad in portrait, the user is greeted by the emoji, and then there is no indication that there is a list. You have to swipe from left to right to make the list appear from the side.</p>

<p>Does anyone know of a way to get even a navigation bar to appear that would let the user tap to see the list of items on the left? So that it's not a screen with the emoji only?</p>

<p>I would hate to leave a note that says "Swipe in from the left to see the list of files/people/whatever"</p>

<p>I remember UISplitViewController had a collapsed property that could be set. Is there anything like that here?</p>
