如何在NSStatusBar中绘制自定义视图?

Question

我目前有一个NSStatusBar，带有一个显示标题的NSStatusBarItem。但我不想用自定义NSView替换标题/文本.我该怎么做？

我目前有：

func applicationDidFinishLaunching(_ aNotification: Notification) {
let statusBar = NSStatusBar.system
statusBarItem = statusBar.statusItem(withLength: NSStatusItem.variableLength)
statusBarItem.button?.title = "My Menu Bar App"
}

假设我不想将标题替换为以下内容：

let view = NSView(frame: NSRect(x: 0, y: 0, width: 40, height: 40))
view.layer?.backgroundColor = NSColor.yellow.cgColor

我怎样才能做到这一点？我试图将其作为子视图添加到按钮中，但没有运气。

Answer 1

• 在类的顶层创建对状态项的强引用

  let statusItem = NSStatusBar.system.statusItem(withLength: NSStatusItem.variableLength)
  

• 在applicationDidFinishLaunching中启用图层并将视图添加到按钮的子视图中

  func applicationDidFinishLaunching(_ aNotification: Notification) {
  let view = NSView(frame: NSRect(x: 0, y: 0, width: 22, height: 22))
  view.wantsLayer = true
  view.layer?.backgroundColor = NSColor.yellow.cgColor
  statusItem.button?.addSubview(view)
  }