viewWillLayoutSubviews 和旋转 [英] viewWillLayoutSubviews and rotation

问题描述

在我的应用程序中，我将所有视图定位在 viewWillLayoutSubviews 中.最近我被要求让应用程序处理所有方向.我认为这很简单，因为我正在使用

In my app I am positioning all of my views in viewWillLayoutSubviews. Recently I been asked to make the app handle all orientations. I figured that would be simple because I was using

CGRectrotatedFrame = [self.view convertRect:self.view.frame fromView:nil];

这将返回与设备当前方向匹配的框架.不幸的是，我发现这并不适用于所有情况.也就是说，如果我呈现一个模态视图控制器，将它旋转到横向然后关闭它，父视图控制器rotatedFrame"不是我所期望的.这导致我的视​​图布局不正确.

Which would return a frame that matches the device current orientation. Unfortunately I found that this does not work for all situations. Namely if I present a modal viewcontroller, rotate it to landscape and then dismiss it, the parent viewcontroller 'rotatedFrame' is not what I expected. This causes my view be layout incorrectly.

有没有办法获得正确的方向框架?

Is there a way to get the correct orientation frame?

推荐答案

我发现，不是将 nil 放在 fromView: 中，而是使用视图的父级它按预期工作.

I found that instead of putting nil for the fromView: I use the parent of the view that it works as expected.

CGRectrotatedFrame = [self.view convertRect:self.view.frame fromView:self.view.superview];

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