buttonSizing

Declaration

var buttonSizing: ButtonSizing { get }

Discussion

Views may use the specified button sizing when determining the size they choose to be in their primary axis within their parent view’s proposed size.

Use buttonSizing(_:) to set the preferred sizing behavior in the environment. Many built-in controls that display as a button adapt to this environment value. You can read the environment value in your own views and styles as well to adapt to the preferred sizing.

struct CustomButtonStyle: ButtonStyle {
    @Environment(\.buttonSizing) private var buttonSizing

    private var maxWidth: CGFloat {
        switch buttonSizing {
        case .flexible: .infinity
        case .fitted, _: nil
        }
    }

    func makeBody(configuration: Configuration) -> some View {
        configuration.content
            .frame(maxWidth: maxWidth)
            .background(.tint, in: Capsule())
    }
}