UIScrollView动态调整UILabel的大小 [英] UIScrollView dynamically resize UILabel

问题描述

我有一个不是静态的UILabel。

i have got a UILabel which is not static.

我想调整滚动视图的大小以适合标签。

I want to resize my scroll view so that it fits the label.

这是我的主意：

self.scrollView.contentSize = CGSizeMake(320.0, 92+self.contentLabel.frame.size.height);

92代表标签开始的像素。 （也有标题）

92 stands for pixels from where my label start. (there is a heading too)

但是它不起作用，似乎也与Interface Builder相连。

But it doesn't work, it seems to be connected with Interface Builder also.

谢谢。

推荐答案

您还需要设置框架。滚动视图的 contentSize 只是其中的内容，而不是视图本身的框架。如果 contentSize 大于框架，则会导致滚动。

You need to set the frame as well. The contentSize of the scrollview is just what is within, not the frame of the view itself. If the contentSize is greater than the frame it will result in scrolling.

CGSize buttonSize =  CGSizeMake(320.0, 92+self.contentLabel.frame.size.height);
self.scrollView.contentSize = buttonSize;
self.scrollView.frame = CGSizeMake(0, 0, 320.0, buttonSize.width, buttonSize.height);

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