OS X故事板：如何以编程方式显示窗口？

Question

我正在创建OS X状态栏应用程序。

我正在努力实现以下目标：

• 应用程序开始不可见，带有菜单栏项
• 单击菜单栏上的项目显示主窗口
• 禁用时，窗口被隐藏

因此，当我单击菜单项时，我试图以编程方式显示主窗口，但没有成功。

我的主窗口已选中“隐藏停用”。一旦隐藏，就无法使用代码再次使其可见。

这是我现在拥有的代码，但是不起作用：

@IBAction func menuClick(sender: AnyObject) {
    var mainWindow = NSStoryboard(name: "Main", bundle: nil)?.instantiateInitialController()
    mainWindow?.makeKeyAndOrderFront(self)
}

Answer 1

这是您必须以编程方式显示 Windows 的方法：

import Cocoa

@NSApplicationMain
class AppDelegate: NSObject, NSApplicationDelegate {

     let mainWindow = NSWindow(contentRect: NSMakeRect(0, 0, NSScreen.mainScreen()!.frame.width/2, NSScreen.mainScreen()!.frame.height/2), styleMask: NSTitledWindowMask|NSResizableWindowMask|NSMiniaturizableWindowMask|NSClosableWindowMask, backing: NSBackingStoreType.Buffered, defer: false)

    func createNewWindow(){
        mainWindow.title = "Main Window"
        mainWindow.opaque = false
        mainWindow.center()
        mainWindow.hidesOnDeactivate = true
        mainWindow.movableByWindowBackground = true
        mainWindow.backgroundColor = NSColor(calibratedHue: 0, saturation: 0, brightness: 1, alpha: 1)
        mainWindow.makeKeyAndOrderFront(nil)
    }
    func applicationDidFinishLaunching(aNotification: NSNotification) {
        // lets get rid of the main window just closing it as soon as the app launches
        NSApplication.sharedApplication().windows.first!.close()
    }
    func applicationWillTerminate(aNotification: NSNotification) {
        // Insert code here to tear down your application
    }
    @IBAction func menuClick(sender: AnyObject) {
        createNewWindow()
    }
}

或者您可以创建一个可选的 NSWindow var 来在关闭窗口之前存储窗口，如下所示

import Cocoa

@NSApplicationMain
class AppDelegate: NSObject, NSApplicationDelegate {
    var defaultWindow:NSWindow?
    func applicationDidFinishLaunching(aNotification: NSNotification) {
        // lets get rid of the main window just closing it as soon as the app launches
        defaultWindow = NSApplication.sharedApplication().windows.first as? NSWindow
        if let defaultWindow = defaultWindow {
            defaultWindow.close()
        }
    }
    func applicationWillTerminate(aNotification: NSNotification) {
        // Insert code here to tear down your application
    }
    @IBAction func menuClick(sender: AnyObject) {
        if let defaultWindow = defaultWindow {
            defaultWindow.makeKeyAndOrderFront(nil)
        }
    }
}