按钮或图像上的SWIFT UI MacOS弹出窗口 [英] Swift ui macOS popover on the button or on an image

问题描述

我希望我能做图片中看到的事情。

我正在尝试使用这段代码，但我不太了解如何修复它。

我希望我可以在Button或ImageMac上使用它，该ImageMac应该是图像。

有人能帮我吗？

编码：

func showLittlePopoverWithMessage(sender: NSView, message: String) {
        let controller = NSViewController()
        controller.view = NSView(frame: CGRect(x: CGFloat(100), y: CGFloat(50), width: CGFloat(100), height: CGFloat(50)))

        let popover = NSPopover()
        popover.contentViewController = controller
        popover.contentSize = controller.view.frame.size

        popover.behavior = .transient
        popover.animates = true

        let invisibleWindow = NSWindow(contentRect: NSMakeRect(0, 0, 20, 5), styleMask: .borderless, backing: .buffered, defer: false)
        invisibleWindow.backgroundColor = .red
        invisibleWindow.alphaValue = 0

        //controller.view.addSubview(sender)
        popover.show(relativeTo: sender.bounds, of: sender as! NSView, preferredEdge: .maxY)
    }

#if os(macOS)
struct ImageMac: View {
    let symbol: String
    init(systemName: String) {
        self.symbol = [
            "star":         "☆",
            "star.fill":    "★",
            "heart":        "􀊴",
            "heart.fill":   "􀊵",
            "video":        "􀍉",
            "lock.fill":    "􀎡",
            "lock.open.fill":    "􀎥",
            "checkmark.seal.fill": "􀇻"
            ][systemName] ?? "?"
    }
    var body: some View { Text(symbol) }
}
#endif

ImageMac(systemName: "checkmark.seal.fill").foregroundColor(.blue)

Button(action: {}) {
   Text("Button")
}

推荐答案

以下是可能的方法演示。编写并使用Xcode 11.7/MacOS 10.15.6进行了测试

struct ContentView: View {
    @State var isPopover = false
    var body: some View {
        VStack {
            Button(action: { self.isPopover.toggle() }) {
                Image(nsImage: NSImage(named: NSImage.infoName) ?? NSImage())
            }.popover(isPresented: self.$isPopover, arrowEdge: .bottom) {
                     PopoverView()
            }.buttonStyle(PlainButtonStyle())
        }.frame(width: 800, height: 600)
    }
}

struct PopoverView: View {
    var body: some View {
        VStack {
            Text("Some text here ").padding()
            Button("Resume") {
            }
        }.padding()
    }
}

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