ListFocus

Example.swift

struct RootView: View {

    @State var items: [Int] = [0,1,2]

    @State var selected: Int?

    @State var detailView: Bool = false

    var body: some View {
        VStack {
            List(items, id:\.self, selection: $selected) { index in
                Text("\(index)")
                    .tag(index)
            }
            Button(action: {
                detailView = true
            }, label: {
                Text("detail view")
            })
        }
        .frame(width: 300, height: 420, alignment: .top)
        .background()
        .onAppear {
            selected = 0
        }
        .overlay {
            if detailView {
                VStack {
                    Button(action: {
                        detailView = false
                    }, label: {
                        Text("Exit")
                    })
                }
                .frame(maxWidth: .infinity, maxHeight: .infinity)
                .background()
            }
        }
    }
}