Swift中的NSApplication子类 | Swift中的NSApplication子类

本文介绍了Swift中的NSApplication子类的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我创建了NSApplication子类:

I created NSApplication subclass:

class MyApplication: NSApplication {
    override func sendEvent(theEvent: NSEvent) {
        if theEvent.type == NSEventType.KeyUp && (theEvent.modifierFlags & .CommandKeyMask).rawValue != 0 {
            self.keyWindow?.sendEvent(theEvent)
        } else {
            super.sendEvent(theEvent)
        }
    }
}

此后，我将Info.plist中的"Principal class"更改为MyApplication，最后在Main.storyboard的Application Scene中，我也将Application更改为MyApplication.

After that, I changed "Principal class" in Info.plist to MyApplication and at the end in the Application Scene in Main.storyboard, I changed Application to MyApplication, too.

运行应用程序时，我收到以下消息:

When I run application I get following message:

有人可以帮我吗?

推荐答案

尝试:

@objc(MyApplication)
class MyApplication: NSApplication {

或者，您必须像这样设置Info.plist.

OR, you have to set Info.plist like this.

<key>NSPrincipalClass</key>
<string>YourAppName.MyApplication</string>
        ^^^^^^^^^^^^

目前没有确切的文档，但是:

There is no exact document about this, but this description is corresponding:

和:

这篇关于Swift中的NSApplication子类的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！