Enumeration 列挙

PreviewLayout

A size constraint for a preview.

Declaration 宣言 

enum PreviewLayout

Overview 概要

Customize the layout of a preview by providing one of these values to the previewLayout(_:) modifier. For example, you can tell the preview to take up only the amount of space that the view requires with PreviewLayout.sizeThatFits:


struct CircleImage_Previews: PreviewProvider {
    static var previews: some View {
        CircleImage()
            .previewLayout(.sizeThatFits)
    }
}

Topics 話題

Getting a Layout

case device
Center the preview in a container the size of the device on which the preview is running. プレビューを、それの上でプレビューが動作しているデバイスの大きさのコンテナの中心に置きます。
case fixed(width: CGFloat, height: CGFloat)
Center the preview in a fixed size container with the given dimensions.
case sizeThatFits
Fit the container to the size of the preview when offered the size of the device that the preview is running on.

See Also 参照

Preview Customization プレビューカスタマイゼーション

func previewDisplayName(String?) -> some View
Sets a user visible name to show in the canvas for a preview.
func previewDevice(PreviewDevice?) -> some View
Overrides the device for a preview. プレビューに対するデバイスをオーバーライドします。
struct PreviewDevice
A simulator device that runs a preview.
func previewLayout(PreviewLayout) -> some View
Overrides the size of the container for the preview. プレビューに対するコンテナの大きさをオーバーライドします。
func previewInterfaceOrientation(InterfaceOrientation) -> some View
Overrides the orientation of the preview.
struct InterfaceOrientation
The orientation of the interface from the user’s perspective.