问题描述
我正在使用autolayout（NSLayoutConsraint）创建一个xib。有没有办法使用sizeToFit或类似的东西使UILabel适合其内容？
I'm creating a xib using autolayout (NSLayoutConsraint). Is there a way to use sizeToFit or something similar to make a UILabel fit its contents?
我尝试设置大于或等于x的约束，并尝试将高度设置为低于此值。但是，它会一直覆盖height属性。当你有NSLayoutConstraints时，sitToFit似乎不起作用。
I've tried setting a constraint of "greater than or equal to x" and tried setting the height to be below this. However, it keeps overwriting the height property. sitToFit doesn't seem to work when you have NSLayoutConstraints.
如何才能使标签大小合适？
How can I get the label to size appropriately?
推荐答案
根据宽度和高度限制制作IBOutlet，并使用 sizeToFit 更改常量属性，并调用 needsUpdateConstraints
Make an IBOutlet for your width and height constraints, and use sizeToFit to change their constant property, and call needsUpdateConstraints
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