旋转视图与自动布局兼容？ [英] Are rotated Views compatible with Auto Layout?
问题描述
我已经学会了如何与旋转仿射变换的景色（见这里 ）。我也了解了自动布局（见<一href=\"http://stackoverflow.com/questions/17917437/ios-using-storyboard-and-autolayout-to-center-the-control/28446317#28446317\">here和的此处），甚至是程序自动布局（见的这里和这里）。但是，我不知道如何让自动布局与一个旋转视图中工作。
I have learned how to rotate a view with Affine Transforms (see here). I have also learned about Auto Layout (see here and here), and even programmatic Auto Layout (see here and here). However, I don't know how to get Auto Layout to work with a rotated view.
这个图像显示了我想做些什么：
This image shows what I would like to do:
我觉得麻烦来自宽度和高度，因为旋转的变化。有没有什么办法让一个旋转视图填补它的的SuperView？有一些手段来得到自动布局工作或旋转后，它只是不兼容？
I think the trouble comes from the width and the height changing because of the rotation. Is there any way to make a rotated view fill it's superview? Is there some trick to get Auto Layout to work or is it just incompatible after a rotation?
（我只学会了斯威夫特，但我很高兴通过Objective-C的答案涉水如果这就是你更熟悉。）
(I've only learned Swift, but I'd be glad to wade through Objective-C answers if that is what you are more familiar with.)
继@ VinayJain的建议，我做了以下内容：
Following @VinayJain's suggestion I did the following:
- 销子视图边缘至情节板中的上海华。
-
创建IBOutlets 的有关子视图的各方面的空间约束。
- pinned the subview edges to the superview in the storyboard.
created IBOutlets for the spacing constraints on all sides of the subview.
@IBOutlet weak var rightSpace: NSLayoutConstraint!
@IBOutlet weak var leftSpace: NSLayoutConstraint!
@IBOutlet weak var topSpace: NSLayoutConstraint!
@IBOutlet weak var bottomSpace: NSLayoutConstraint!
旋转子视图
rotated the subview
subview.transform = CGAffineTransformMakeRotation(CGFloat(M_PI_2))
从出口变化的制约。
changed the constraints from the outlets
self.rightSpace.constant = CGFloat(0)
self.leftSpace.constant = CGFloat(0)
self.topSpace.constant = CGFloat(0)
self.bottomSpace.constant = CGFloat(0)
但它是在这一点上，我意识到，我并不真的需要改变间距值。我想的间距保持为0。我只需要它来调整自己。然而，旋转弄乱，最多。效果显示如下图：
But it was at this point that I realized that I don't really need to change the spacing value. I want the spacing to remain 0. I just need it to adjust itself. However, the rotation messes that up. The effect is shown in the following image:
推荐答案
您可以用自动布局做到这一点很容易，
You can do it with autolayout easily,
- 将钉扎的边缘，上海华 创建约束
-
创建这些限制出口（说leftSpace，rightSpace，topSpace，bottomSpace）
- Create constraints by pinning the edges to superview
Create outlets for these constraints(say it leftSpace,rightSpace,topSpace,bottomSpace)
检查旋转，并相应地更新这些值
Check for rotation, and update these values accordingly
使用此检查旋转：<一href=\"http://stackoverflow.com/questions/24166878/how-to-detect-orientation-change-in-custom-keyboard-extension-in-ios-8\">Check旋转
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