blocks|key|2491364|text|你需要在这里做一些事情|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2491365|2491366|从plist中删除NSMainStoryboardFile键/值|ordered-list-item|offset|length|style|CODE|2491367|创建一个NSApplication子类并将其分配给Principal+Class+(NSPrincipalClass)键。|2491368|2491369|​|2491370|📷|atomic|2491371|2491372|该名称必须与您的模块名称完全限定。|2491373|2491374|在NSApplication子类中手动实例化委托，并将其分配给delegate属性。|2491375|2491376|确保保持对代理对象的强引用。我刚刚在这里使用了一个let。|2491377|class+GrookApplication:+NSApplication+{

++++let+strongDelegate+=+AppDelegate()

++++override+init()+{
++++++++super.init()
++++++++self.delegate+=+strongDelegate
++++}

++++required+init?(coder:+NSCoder)+{
++++++++fatalError("init(coder:)+has+not+been+implemented")
++++}

}|code-block|syntax|javascript|2491378|例如，一个简单的委托。|2491379|@NSApplicationMain
class+AppDelegate:+NSObject,+NSApplicationDelegate+{

++++override+init()+{
++++++++super.init()
++++++++print("wassup")
++++++++//conceptual+proof+of+life+init+override
++++++++//wait+until+applicationDidFinishLaunching+,+specially+for+UI
++++}

++++var+window:+NSWindow!
++++func+applicationDidFinishLaunching(_+aNotification:+Notification)+{
++++++++print("yo!+I'm+alive")
++++++++window+=+NSWindow(contentRect:+NSRect(x:+0,+y:+0,+width:+200,+height:+200),+styleMask:+.titled,+backing:+.buffered,+defer:+false)
++++++++window.makeKeyAndOrderFront(nil)
++++}

}|2491380|EDIT+2018验证高山|BOLD|2491381|Do+NOT+try++do+window+or+view+controller+initialisation+init这会导致双重应用程序初始化问题和崩溃。该应用程序在此阶段尚未完成启动。等待applicationDidFinishLaunching触发任何重要的操作。|2491382|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/95229061423fabbcfe16205b41cee220.png|imageAlt^0|0|0|9|K|0|4|D|P|Y|0|0|0|0|1|0|0|0|0|0|V|8|0|0|P|3|0|0|0|0|0|9|0|3|3|1K|4|2P|T|0^^$0|@$1|2|3|4|5|6|7|1N|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|1O|8|@]|9|@]|A|$]]|$1|C|3|D|5|E|7|1P|8|@$F|1Q|G|1R|H|I]]|9|@]|A|$]]|$1|J|3|K|5|E|7|1S|8|@$F|1T|G|1U|H|I]|$F|1V|G|1W|H|I]]|9|@]|A|$]]|$1|L|3|-4|5|6|7|1X|8|@]|9|@]|A|$]]|$1|M|3|N|5|6|7|1Y|8|@]|9|@]|A|$]]|$1|O|3|P|5|Q|7|1Z|8|@]|9|@$F|20|G|21|1|22]]|A|$]]|$1|R|3|N|5|6|7|23|8|@]|9|@]|A|$]]|$1|S|3|T|5|6|7|24|8|@]|9|@]|A|$]]|$1|U|3|-4|5|6|7|25|8|@]|9|@]|A|$]]|$1|V|3|W|5|E|7|26|8|@$F|27|G|28|H|I]]|9|@]|A|$]]|$1|X|3|-4|5|6|7|29|8|@]|9|@]|A|$]]|$1|Y|3|Z|5|6|7|2A|8|@$F|2B|G|2C|H|I]]|9|@]|A|$]]|$1|10|3|11|5|12|7|2D|8|@]|9|@]|A|$13|14]]|$1|15|3|16|5|6|7|2E|8|@]|9|@]|A|$]]|$1|17|3|18|5|12|7|2F|8|@]|9|@]|A|$13|14]]|$1|19|3|1A|5|6|7|2G|8|@$F|2H|G|2I|H|1B]]|9|@]|A|$]]|$1|1C|3|1D|5|6|7|2J|8|@$F|2K|G|2L|H|1B]|$F|2M|G|2N|H|I]|$F|2O|G|2P|H|I]]|9|@]|A|$]]|$1|1E|3|-4|5|6|7|2Q|8|@]|9|@]|A|$]]]|1F|$1G|$5|1H|1I|1J|A|$1K|1L|1M|-4]]]]

You need to do a few things here 

<ol>
<li>Delete <code>NSMainStoryboardFile</code> key/value from the plist </li>
<li>Create a <code>NSApplication</code> subclass and assign it to the <code>Principal Class (NSPrincipalClass)</code> key. </li>
</ol>

<a href="https://i.stack.imgur.com/cV4MT.png" rel="noreferrer"><img src="https://i.stack.imgur.com/cV4MT.png" alt="assign custom class to principal class"></a>

The name must be fully qualified with your module name.

<ol start="3">
<li>Manually instantiate your delegate in your NSApplication subclass and assign it to the <code>delegate</code> property. </li>
</ol>

Make sure you keep a strong reference to your delegate object. Ive just used a <code>let</code> here.

<pre><code>class GrookApplication: NSApplication {

 let strongDelegate = AppDelegate()

 override init() {
 super.init()
 self.delegate = strongDelegate
 }

 required init?(coder: NSCoder) {
 fatalError("init(coder:) has not been implemented")
 }

}
</code></pre>

e.g a simple delegate.

<pre><code>@NSApplicationMain
class AppDelegate: NSObject, NSApplicationDelegate {

 override init() {
 super.init()
 print("wassup")
 //conceptual proof of life init override
 //wait until applicationDidFinishLaunching , specially for UI
 }

 var window: NSWindow!
 func applicationDidFinishLaunching(_ aNotification: Notification) {
 print("yo! I'm alive")
 window = NSWindow(contentRect: NSRect(x: 0, y: 0, width: 200, height: 200), styleMask: .titled, backing: .buffered, defer: false)
 window.makeKeyAndOrderFront(nil)
 }

}
</code></pre>

EDIT 2018 Verified High Sierra

Do NOT try and do window or view controller initialisation inside <code>init</code> this leads to double app initialisation issues and crashing. The app has not finished launching at this stage. Wait until <code>applicationDidFinishLaunching</code> to fire any significant operations.

blocks|key|2701834|text|以防有人正在寻找Swift版本(基于@WarrenBurton的答案)。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2701835|AppDelegate|offset|length|style|BOLD|2701836|@NSApplicationMain
class+AppDelegate:+NSObject,+NSApplicationDelegate+{
++++var+window:+NSWindow?

++++func+applicationDidFinishLaunching(_+aNotification:+Notification)+{
++++++++//+Insert+code+here+to+initialize+your+application
++++++++window+=+NSWindow(contentViewController:+RootViewController())
++++++++window?.makeKeyAndOrderFront(self)
++++}
}

class+RootViewController:+NSViewController+{
++++override+func+loadView()+{
++++++self.view+=+NSView()
++++++self.view.frame+=+NSRect(x:+0,+y:+0,+width:+600,+height:+400)
++}
}|code-block|syntax|javascript|2701837|NSApplication子类|2701838|import+Cocoa

class+Application:+NSApplication+{
++++let+strongDelegate+=+AppDelegate()

++++override+init()+{
++++++++super.init()
++++++++self.delegate+=+strongDelegate
++++}

++++required+init?(coder:+NSCoder)+{
++++++++fatalError("init(coder:)+has+not+been+implemented")
++++}
}|2701839|Info.plist条目|2701840|<?xml+version="1.0"+encoding="UTF-8"?>
<!DOCTYPE+plist+PUBLIC+"-//Apple//DTD+PLIST+1.0//EN"+"http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist+version="1.0">
<dict>
++++...
++++<key>NSPrincipalClass</key>
++++<string>$(PRODUCT_MODULE_NAME).Application</string>
++++...
</dict>
</plist>|2701841|我还为此创建了一个要点，我将为新的Xcode+/+Swift版本保持最新。https://gist.github.com/florieger/7ac5e7155f6faf18666f92f7d82f6cbc|2701842|编辑：确保删除Main.storyboard+/+MainMenu.xib，否则可能会在UI调试器中显示两个窗口。|2701843|entityMap|0|LINK|mutability|MUTABLE|url|https://gist.github.com/florieger/7ac5e7155f6faf18666f92f7d82f6cbc^0|0|0|B|0|0|0|F|0|0|0|0|11|1U|0|0|0|3|0^^$0|@$1|2|3|4|5|6|7|16|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|17|8|@$D|18|E|19|F|G]]|9|@]|A|$]]|$1|H|3|I|5|J|7|1A|8|@]|9|@]|A|$K|L]]|$1|M|3|N|5|6|7|1B|8|@$D|1C|E|1D|F|G]]|9|@]|A|$]]|$1|O|3|P|5|J|7|1E|8|@]|9|@]|A|$K|L]]|$1|Q|3|R|5|6|7|1F|8|@]|9|@]|A|$]]|$1|S|3|T|5|J|7|1G|8|@]|9|@]|A|$K|L]]|$1|U|3|V|5|6|7|1H|8|@]|9|@$D|1I|E|1J|1|1K]]|A|$]]|$1|W|3|X|5|6|7|1L|8|@$D|1M|E|1N|F|G]]|9|@]|A|$]]|$1|Y|3|-4|5|6|7|1O|8|@]|9|@]|A|$]]]|Z|$10|$5|11|12|13|A|$14|15]]]]

In case someone is looking for a Swift version (based on @WarrenBurtons answer).

AppDelegate

<pre><code>@NSApplicationMain
class AppDelegate: NSObject, NSApplicationDelegate {
 var window: NSWindow?

 func applicationDidFinishLaunching(_ aNotification: Notification) {
 // Insert code here to initialize your application
 window = NSWindow(contentViewController: RootViewController())
 window?.makeKeyAndOrderFront(self)
 }
}

class RootViewController: NSViewController {
 override func loadView() {
 self.view = NSView()
 self.view.frame = NSRect(x: 0, y: 0, width: 600, height: 400)
 }
}
</code></pre>

NSApplication subclass

<pre><code>import Cocoa

class Application: NSApplication {
 let strongDelegate = AppDelegate()

 override init() {
 super.init()
 self.delegate = strongDelegate
 }

 required init?(coder: NSCoder) {
 fatalError("init(coder:) has not been implemented")
 }
}
</code></pre>

Info.plist entry

<pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt;
&lt;!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"&gt;
&lt;plist version="1.0"&gt;
&lt;dict&gt;
 ...
 &lt;key&gt;NSPrincipalClass&lt;/key&gt;
 &lt;string&gt;$(PRODUCT_MODULE_NAME).Application&lt;/string&gt;
 ...
&lt;/dict&gt;
&lt;/plist&gt;
</code></pre>

I've also created a gist for this, that I will keep up to date for new Xcode / Swift versions.
<a href="https://gist.github.com/florieger/7ac5e7155f6faf18666f92f7d82f6cbc" rel="nofollow noreferrer">https://gist.github.com/florieger/7ac5e7155f6faf18666f92f7d82f6cbc</a>

Edit: Make sure to delete the Main.storyboard / MainMenu.xib, otherwise you might end up with two Windows in the UI Debugger.

I'm attempting to create a macOS application without a storyboard in Xcode 8 (stable) on macOS Sierra. However, my <code>AppDelegate</code> is not even being initiated. Here's the code I have:

<pre><code>import Cocoa

@NSApplicationMain
class AppDelegate: NSObject, NSApplicationDelegate {
 var window: NSWindow!

 override init() {
 super.init()
 print("Init")
 }

 func applicationDidFinishLaunching(_ aNotification: Notification) {
 print("Finished launching")

 // Create a window
 window = NSWindow()

 // Add the view controller
 let viewController = ViewController()
 window.contentView?.addSubview(viewController.view)

 // Show the window
 window.makeKeyAndOrderFront(nil)
 }
}
</code></pre>

Neither <code>init</code> or <code>applicationDidFinishLaunching(_ aNotification: Notification)</code> is being called. Any help would be much appreciated.

NSApplicationDelegate not working without Storyboard

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我正尝试在macOS的Xcode8(稳定)中创建一个没有故事板的macOS应用程序。然而，我的AppDelegate甚至没有被初始化。下面是我的代码：import Cocoa@NSApplicationMainclass AppDelegate: NSObject, NSApplicationDelegate {   ...

问没有故事板，NSApplicationDelegate无法工作
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