If you don't have a window outlet in there, it means that you didn't create your outlets on App Delegate.

如果在里面没有window的outlet，意味着你没有在App Delegate创建outlet。

youdao

I have a console app that starts the task delegate using task.

我有一个控制台应用程序，启动任务，委托任务运行使用。

youdao

I found it hard and unnatural to write well structured app with the DELEGATE approach.

我发现很难和不自然的写好结构化程序委托的方法。

youdao

More responsibility is moving to the app and the app delegate.

ENGADGET: Apple seeds iOS 6 beta 4 to developers: here's the changelog

The system intersects the view controller's supported orientations with the app's supported orientations (as determined by the Info.plist file or the app delegate'sapplication:supportedInterfaceOrientationsForWindow: method) to determine whether to rotate.

ENGADGET: Apple seeds iOS 6 beta 4 to developers: here's the changelog

For compatibility, view controllers that still implement the shouldAutorotateToInterfaceOrientation: method do not get the new autorotation behaviors. (In other words, they do not fall back to using the app, app delegate, or Info.plist file to determine the supported orientations.) Instead, the shouldAutorotateToInterfaceOrientation: method is used to synthesize the information that would be returned by thesupportedInterfaceOrientations method.

ENGADGET: Apple seeds iOS 6 beta 4 to developers: here's the changelog