在Swift OSX中显示NSButton旁边的NSMenu

Question

单击按钮后如何显示NSMenu我的旁边NSButton.

这就是我到目前为止所拥有的.

@IBOutlet weak var BtnMenu: NSButton!

// Menu
let appMenu = NSMenu()
let showPrefsMenuItem = NSMenuItem(title: "Preferences...", action: #selector(VC.showPrefs(_:)), keyEquivalent: "")
let showAboutMenuItem = NSMenuItem(title: "About", action: #selector(VC.showAbout(_:)), keyEquivalent: "")
let quitAppMenuItem = NSMenuItem(title: "Quit", action: #selector(VC.quitApp(_:)), keyEquivalent: "")

override func viewDidLoad() {
    super.viewDidLoad()

    // Set up menu
    self.appMenu.addItem(self.showPrefsMenuItem)
    self.appMenu.addItem(self.showAboutMenuItem)
    self.appMenu.addItem(NSMenuItem.separatorItem())
    self.appMenu.addItem(self.quitAppMenuItem)
}

// Shows the app menu
@IBAction func openMenu(sender: NSButton) {
    self.appMenu.popUpMenuPositioningItem(self.appMenu.itemAtIndex(0), atLocation: NSEvent.mouseLocation(), inView: nil)
}

但是现在,菜单显示在鼠标位置.Theresa是一种显示按钮旁边菜单的方法吗？

谢谢.

Answer 1

这就是我解决它的方式:

let p = NSPoint(x: sender.frame.origin.x, y: sender.frame.origin.y - (sender.frame.height / 2))
self.appMenu.popUp(positioning: nil, at: p, in: sender.superview)

在这种情况下,菜单显示在单击的按钮下.

Answer 2

斯威夫特3.

在按钮下显示NSMenu:

let p = NSPoint(x: 0, y: sender.frame.height)
appMenu.popUp(positioning: nil, at: p, in: sender)

在按钮上显示NSMenu:

let p = NSPoint(x: sender.frame.width, y: 0)
appMenu.popUp(positioning: nil, at: p, in: sender)