Instance Method インスタンスメソッド

mask(_:)

Masks this view using the alpha channel of the given view. このビューをこの与えられたビューのアルファチャンネルを使って隠します。

Declaration 宣言

func mask<Mask>(_ mask: Mask) -> some View where Mask : View

Parameters パラメータ

mask: The view whose alpha the rendering system applies to the specified view.

Discussion 議論

Use mask(_:) when you want to apply the alpha (opacity) value of another view to the current view.

This example shows an image masked by rectangle with a 10% opacity:

Image(systemName: "envelope.badge.fill")
    .foregroundColor(Color.blue)
    .font(.system(size: 128, weight: .regular))
    .mask(Rectangle().opacity(0.1))

A screenshot of a view masked by a rectangle with 10%