SwiftUI Navigation on iPad - How to show master list

Question

My app has simple navigation needs

• List View (parent objects)
• List View (child objects)
• Detail View (child object)

I have this

Answer 1

in iOS 13.4, a "back to master view" button has been added to the iPad layout. From the release notes:

When using a NavigationView with multiple columns, the navigation bar now shows a control to toggle the columns. (49074511)

For example:

struct MyNavView: View {
    var body: some View {
        NavigationView {
            NavigationLink(
                destination: Text("navigated"), 
                label: {Text("Go somwhere")}
            )
            .navigationBarTitle("Pick Item")
        }
    }
}

Has the following result: