以编程方式设置UIView的自动调整掩码？ [英] Set UIView's autoresizing mask programmatically?

问题描述

我必须以编程方式为 UIView 设置autoresizingMask。

I have to set autoresizingMask programmatically for UIView.

我不知道如何实现它。

I don't know how to implement this.

推荐答案

为了实现你在屏幕截图中所拥有的，你需要做与DrummerB建议相反的事情。你想要一个固定的上限，这样你就可以使每一方都灵活：

To achieve what you have in that screen shot you need to do the opposite of what DrummerB suggests. You want a fixed top margin so you make every other side flexible like so:

目标C：

view.autoresizingMask = UIViewAutoresizingFlexibleRightMargin |
                        UIViewAutoresizingFlexibleLeftMargin |
                        UIViewAutoresizingFlexibleBottomMargin;

没有将一方设置为灵活意味着它将被修复（默认行为），这就是为什么有没有UIViewAutoResizingFixedTopMargin（因为它与未设置UIViewAutoresizingFlexibleTopMargin相同）

Not setting a side as flexible means that it will be fixed (default behaviour), thats why there is no such thing as UIViewAutoResizingFixedTopMargin (since its the same as not setting UIViewAutoresizingFlexibleTopMargin)

编辑Swift：

view.autoresizingMask = [.FlexibleRightMargin, .FlexibleLeftMargin, .FlexibleBottomMargin]

感谢Tom Calmon添加swift版本1st。

Credit to Tom Calmon for adding the swift version 1st.

干杯。

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