如何在基于非文档的故事板应用程序中处理applicationShouldHandleReopen [英] how to handle applicationShouldHandleReopen in a Non-Document based Storyboard Application

问题描述

我已经能够找出的最好的是：

The best I have been able to figure out is:

func applicationShouldHandleReopen(sender: NSApplication, hasVisibleWindows flag: Bool) -> Bool {

    if !flag{
        let sb = NSStoryboard(name: "Main", bundle: nil)
        let controller = sb?.instantiateInitialController() as NSWindowController

        controller.window?.makeKeyAndOrderFront(self)
        self.window = controller.window
    }

    return true
}

但这需要我设置一个ref到我的应用程序委托窗口。因为这是不需要的应用程序最初启动时我很积极我做错了，而缺少明显的东西。

But that requires that I set a ref to the window on my app delegate. Since that isn't required when the app initially starts I'm pretty positive I am doing something wrong while missing something obvious.

这个解决方案似乎也工作

This solution also appears to work

func applicationShouldHandleReopen(sender: NSApplication, hasVisibleWindows flag: Bool) -> Bool {

    if !flag{

        for window in sender.windows{
            if let w = window as? NSWindow{
                w.makeKeyAndOrderFront(self)
            }
        }
    }

    return true
}

这是第三个解决方案，我也找到了工作，从你的 NSApplicationDelegate ：

Here is a 3rd solution that I have also found works, from within your NSApplicationDelegate:

var mainWindow: NSWindow!

func applicationDidFinishLaunching(aNotification: NSNotification) {
    mainWindow = NSApplication.sharedApplication().windows[0] as! NSWindow
}

func applicationShouldHandleReopen(sender: NSApplication, hasVisibleWindows flag: Bool) -> Bool {
    if !flag{
        mainWindow.makeKeyAndOrderFront(nil)
    }

    return true
}

我不知道为什么苹果不提供这方面的指导，或者让你为窗口设置故事板的插座。这似乎是一个常见的需要。也许我仍然只是缺少一些东西。

I have no idea why Apple doesn't provide guidance on this, or let you set the outlet from the storyboard for the window. It seems like a common thing to need. Maybe I am still just missing something.

推荐答案

如果你正在寻找一个基于可可的解决方案非文档应用程序。这与Adam的第二个解决方案相当。

In case you are looking for a cocoa-based solution for non-document apps. This is the equivalent of Adam's second solution.

- (BOOL)applicationShouldHandleReopen:(NSApplication *)theApplication hasVisibleWindows:(BOOL)flag
{
   if(!flag)
   {
       for(id const window in theApplication.windows)
       {
           [window makeKeyAndOrderFront:self];
       }
   }
   return YES;
}

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