如何让 UINavigationController 旋转，而不是子视图？
我下载了“Autodesk”的免费 iPad 应用程序“SketchBook Express”。 其中，它们有一个绘图表面和（我认为是）一个 UINavigationController。我感兴趣的是，导航控制器栏随 iPad 一起旋转，但绘图的内容却没有。因此，如果我将 iPad 从纵向调整为横向，导航栏就会移动到新的顶部，但我绘制的草图现在位于其一侧。我想为我的程序实现类似的东西，但我一直无法做到。
我玩过 shouldAutorotateToInterfaceOrientation: 但到目前为止我才发现它只被调用一次。我创建了 UINavigationController 的子类并让它返回 YES，并让我的子视图控制器返回 NO。但这并没有达到目的。
有没有一种简单的方法可以做到这一点？
I downloaded the free iPad application "SketchBook Express" by "Autodesk".
In it, they have a drawing surface, and (what I believe is) a UINavigationController. What interests me is that the navigation controller bar rotates with the iPad, but the content of the drawing does not. So if I put the iPad from portrait to landscape, the nav bar moves to the new top, but the sketch I've drawn is now on its side. I would like to implement something similar for my program, but I have been unable to.
I've played with shouldAutorotateToInterfaceOrientation: but so far I've just figured out it is only called once. I made a subclass of UINavigationController and had that return YES, and had my subview controller return NO. That did not do the trick.
Is there a simple way to do this?
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旋转的内容可能包含在 UIViewController（或 UINavigationController）的视图中。
其他东西（不旋转）可能包含在任何 UIViewController 不包含的视图中（或者在
shouldAutorotateToInterfaceOrientation方法中返回 NO 的控制器）。这意味着您可以尝试将绘图视图设置为 keyWindow 的子视图。
其他东西可以像往常一样在视图控制器中。
是不是我没有尝试过，这只是一个想法。我很想知道这是否有效。 :)
What rotates is probably contained by a UIViewController (or UINavigationController)'s view.
Other things (that don't rotate) are probably contained by a view that is not contained by any UIViewController (or a controller that returns NO in
shouldAutorotateToInterfaceOrientationmethod).This means that you could try setting your drawing view as a subview of the keyWindow.
Other things could be in the view controller as usual.
Is not I have tried, this is just an idea. And I would be interested in knowing if this worked. :)