本文介绍了何时调用layoutSubviews方法？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
我正在浏览，提到以下方法：
I am going through a tutorial that mentions the following method:
-(void)layoutSubviews
位于CustomerCell.m
located in CustomerCell.m
此方法何时调用应用执行？是自动调用吗？我没有看到任何回调。
When is this method called during the app execution? Is it automatically invoked? I dont see any callback.
推荐答案
你会找到答案
编辑：直接从博客中复制：
copied directly from the blog:
- init不会导致调用layoutSubviews（duh）
- addSubview导致在视图上调用layoutSubviews正在添加，它被添加到（目标视图）的视图，以及目标视图的所有子视图
- setFrame智能调用视图上的layoutSubviews，只有在尺寸参数为框架是不同的
- 滚动UIScrollView导致在scrollView上调用layoutSubviews，并且它是superview
- 旋转设备只调用父项上的layoutSubview view（响应的viewControllers主视图）
- removeFromSuperview - 仅在superview上调用layoutSubviews
- init does not cause layoutSubviews to be called (duh)
- addSubview causes layoutSubviews to be called on the view being added, the view it’s being added to (target view), and all the subviews of the target view
- setFrame intelligently calls layoutSubviews on the view having it’s frame set only if the size parameter of the frame is different
- scrolling a UIScrollView causes layoutSubviews to be called on the scrollView, and it’s superview
- rotating a device only calls layoutSubview on the parent view (the responding viewControllers primary view)
- removeFromSuperview – layoutSubviews is called on superview only
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