iPhone Duo SwiftUI examples

Explore SwiftUI APIs, components, and modifiers on iPhone Duo. Compare portrait and landscape layouts in closed, partially open, and fully open states, with Swift code and Apple documentation.

ArrangementView

Overlay Arrangement ZIndex

The z-index for a view within an overlay arrangement view.

Explore Overlay Arrangement ZIndex on iPhone Duo in portrait and landscape across closed, partially open, and fully open states, with SwiftUI code and Apple API documentation.

SwiftUI code

Full details Docs 
var body: some View {
    ArrangementView {
        // VStack required, otherwise zIndex is always 0
        VStack {
            SecondaryView()
        }
    } secondary: {
        Color.orange
    }
    .arrangementViewStyle(.overlay)
}

struct SecondaryView: View {
    @Environment(\.overlayArrangementZIndex) var zIndex

    var body: some View {
        Color.blue
            .frame(width: 210, height: 210)
            .opacity(zIndex == 0 ? 1.0 : 0)
    }
}

Compatibility

iOS 27.1+ iPadOS 27.1+

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