UIScrollView 以编程方式滚动到底部 [英] UIScrollView scroll to bottom programmatically

问题描述

如何使 UIScrollView 在我的代码中滚动到底部?或者以更通用的方式，到子视图的任何点?

How can I make a UIScrollView scroll to the bottom within my code? Or in a more generic way, to any point of a subview?

推荐答案

您可以使用 UIScrollView 的 setContentOffset:animated: 函数滚动到内容视图的任何部分.假设您的 scrollView 是 self.scrollView，下面是一些会滚动到底部的代码:

You can use the UIScrollView's setContentOffset:animated: function to scroll to any part of the content view. Here's some code that would scroll to the bottom, assuming your scrollView is self.scrollView:

目标-C:

CGPoint bottomOffset = CGPointMake(0, self.scrollView.contentSize.height - self.scrollView.bounds.size.height + self.scrollView.contentInset.bottom);
[self.scrollView setContentOffset:bottomOffset animated:YES];

斯威夫特:

let bottomOffset = CGPoint(x: 0, y: scrollView.contentSize.height - scrollView.bounds.height + scrollView.contentInset.bottom)
scrollView.setContentOffset(bottomOffset, animated: true)

希望有帮助！

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