OS Swift 中的 X 应用程序没有 XIB

OS X app in Swift without XIB

有没有人想出一种方法来 bootstrap 不使用 XIB(或根本不使用 IB)的基于 NSWindow 的应用程序?在iOS中,这很简单;

func application(application: UIApplication!, didFinishLaunchingWithOptions launchOptions: NSDictionary!) -> Bool {
        window = UIWindow(frame: UIScreen.mainScreen().bounds)

        window!.rootViewController = ViewController(nibName: nil, bundle: nil)
        window!.makeKeyAndVisible()
        window!.backgroundColor = UIColor.whiteColor()
        return true
    }

但我就是无法让它在桌面应用程序中正常工作。NSWindow 没有 makeKeyAndVisible() 方法,而 NSApplicationDelegate 似乎有十几个 func application() 覆盖。这是什么魔法咒语?

import Cocoa

@NSApplicationMain
class AppDelegate: NSObject, NSApplicationDelegate {
    @IBOutlet weak var window: NSWindow!
    let newWindow = NSWindow(contentRect: NSScreen.mainScreen()!.frame, styleMask: NSBorderlessWindowMask, backing: NSBackingStoreType.Buffered, defer: false)
    func applicationDidFinishLaunching(aNotification: NSNotification) {
        // Insert code here to initialize your application
        newWindow.opaque = false
        newWindow.movableByWindowBackground = true
        newWindow.backgroundColor = NSColor.whiteColor()
        newWindow.makeKeyAndOrderFront(nil)
    }
    func applicationWillTerminate(aNotification: NSNotification) {
        // Insert code here to tear down your application
    }

}