Snapkit和UILabel的轮换 | equalToSuperview

本文介绍了Snapkit和UILabel的轮换的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我有:

UIView(容器)
UIView. (1)的子视图-下图中的深蓝色
UIView. (1)的子视图-下图中的紫色
UILabel. edge.equalToSuperview()

我要完成的工作:

问题是，我希望UILabel旋转3pi/2(270°).一旦完成旋转，就无法正确放置它.

The thing is, I want the UILabel to be rotated 3pi/2 (270°). Once I've done the rotation, it isn't placed correctly.

这是通过设置edge.equalToSuperview()和270°旋转的样子:

This is how it looks like by setting edges.equalToSuperview() and the 270°rotation:

我已经尝试过了(但是会导致崩溃):

I've tried this (but it leads to a crash):

myLabel.makeConstraints { make in
    make.top.equalTo(containerView.snp.left)
    make.right.equalTo(containerView.snp.top)
    make.left.equalTo(containerView.snp.bottom)
    make.bottom.equalTo(containerView.snp.right)
}

崩溃说明:

*** Terminating app due to uncaught exception 'NSInvalidLayoutConstraintException', reason: 'Constraint improperly relates anchors of incompatible types: <SnapKit.LayoutConstraint:[email protected]#250 MyProject.MyLabel:0x7fcc2201ca80.top == UIView:0x7fcc2201bd30.left>'

有什么想法我可以在这里做什么?

Any ideas what I could do here?

推荐答案

对于使用Snapkit对elk_cloner的答案感兴趣的任何人:

For anyone interested in elk_cloner's answer using Snapkit:

myLabel.snp.makeConstraints { make in
    make.centerX.equalTo(containerView.snp.centerX)
    make.centerY.equalTo(containerView.snp.centerY)
}

这篇关于Snapkit和UILabel的轮换的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！