我如何自动调整UIScrollView以适应内容 [英] How I auto size a UIScrollView to fit the content

问题描述

有没有办法让 UIScrollView 自动调整为滚动内容的高度（或宽度）？

Is there a way to make a UIScrollView auto-adjust to the height (or width) of the content it's scrolling?

有些像：

[scrollView setContentSize:(CGSizeMake(320, content.height))];

推荐答案

基于其包含的子视图的 UIScrollView 的内容大小：

The best method I've ever come across to update the content size of a UIScrollView based on its contained subviews:

CGRect contentRect = CGRectZero;
for (UIView *view in self.scrollView.subviews) {
    contentRect = CGRectUnion(contentRect, view.frame);
}
self.scrollView.contentSize = contentRect.size;

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