Type Property 型プロパティ

previews

A collection of views to preview.

Required. 必須。

Declaration 宣言 

static var previews: Self.Previews { get }

Discussion 議論

Implement a computed previews property to indicate the content to preview. Xcode generates a preview for each view that you list. You can apply View modifiers to the views, like you do when creating a custom view. For a preview, you can also use various preview-specific modifiers that customize the preview. For example, you can choose a specific device for the preview by adding the previewDevice(_:) modifier:


struct CircleImage_Previews: PreviewProvider {
    static var previews: some View {
        CircleImage()
            .previewDevice(PreviewDevice(rawValue: "iPad Pro (11-inch)"))
    }
}

For the full list of preview-specific modifiers, see Previews in Xcode.

See Also 参照

Creating a Preview

associatedtype Previews : View
The type to preview. プレビューすることになる型。

Required. 必須。