当窗口处于非活动状态时,带有PlainButtonStyle的按钮不会被点击

视图是否可以在不激活其窗口的情况下接收单击事件,由控制 acceptsFirstMouse(for:) 方法当按钮样式为 .plain ,按钮不再由支持 NSButton 谁的 acceptsFirstMouse 方法会返回 true ),所以你不能独自“点击”按钮。

你可以包装 NSViewRepresentable 围绕按钮,并覆盖 接受第一个鼠标 返回true。

这是来自的代码 this blog post

extension SwiftUI.View {
    public func acceptClickThrough() -> some View {
        ClickThroughBackdrop(self)
    }
}

fileprivate struct ClickThroughBackdrop<Content: SwiftUI.View>: NSViewRepresentable {
    final class Backdrop: NSHostingView<Content> {
        override func acceptsFirstMouse(for event: NSEvent?) -> Bool {
            return true
        }
    }

    let content: Content

    init(_ content: Content) {
        self.content = content
    }

    func makeNSView(context: Context) -> Backdrop {
        let backdrop = Backdrop(rootView: content)
        backdrop.translatesAutoresizingMaskIntoConstraints = false
        return backdrop
    }

    func updateNSView(_ nsView: Backdrop, context: Context) {
        nsView.rootView = content
    }
}

示例用法:

Button("Foo") {
    print("triggered")
}
.buttonStyle(.plain)
.acceptClickThrough()