How do I create a custom AnyLayout of two hstacks?

Asked on 10/17/2024

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To create a custom AnyLayout of two HStacks in SwiftUI, you can use the AnyLayout type to dynamically switch between different layouts based on certain conditions, such as accessibility settings. Here's a general approach based on the context provided:

  1. Define a Dynamic Layout: Use the AnyLayout type to define a layout that can switch between an HStack and another layout (like VStack) based on conditions such as accessibility settings.

  2. Implement the Layout: In your SwiftUI view, use the AnyLayout to apply the desired layout. For example, you can switch between an HStack and a VStack depending on the text size or other conditions.

Here's a simplified example:

struct CustomLayoutView: View {
    @Environment(\.dynamicTypeSize) var dynamicTypeSize

    var body: some View {
        let dynamicLayout = dynamicTypeSize.isAccessibilityCategory ? AnyLayout(VStackLayout()) : AnyLayout(HStackLayout())

        dynamicLayout {
            HStack {
                Image(systemName: "star")
                Text("Hello, World!")
            }
            HStack {
                Image(systemName: "moon")
                Text("Goodnight, Moon!")
            }
        }
    }
}

In this example, the dynamicLayout switches between an HStack and a VStack based on the dynamicTypeSize. This allows the layout to adapt dynamically to different text sizes, which is particularly useful for accessibility.

For more detailed guidance, you can refer to the session Get started with Dynamic Type (06:00) which covers dynamic layouts in SwiftUI.