如何在 UIScrollView 中以编程方式滚动到某个位置

Question

I have a scroll view which scrolls horizontally. I just added images, labels and a webview in it and there are many objects in it. I want to directly scroll to the first object in the scroll view. How do I do this?

Answer 1

使用以下代码：

scrollView.contentOffset = CGPoint(x: 0, y: 0)

Answer 2

To animate your scrolling do this:

CGRect frame = CGRectMake(0, 768, 1024, 748); //wherever you want to scroll 
[self.scrollView scrollRectToVisible:frame animated:YES];

Answer 3

最简单的动画方式 ->

[scrollView setContentOffset:CGPointMake(0, 0) animated:YES]

Answer 4

答案的 swift 3 版本是：

scrollView.contentOffset = CGPoint(x: 0.0, y: 0.0)

Answer 5

If someone wonder how to do it in Swift 5 with xcode 11:

I put negative value in the x parameters becouse I want to scroll to left

let frame = CGRect(x: -540, y: 0, width: 1080, height: 370); //wherever you want to scroll
boardScrollView.scrollRectToVisible(frame, animated: true) // set animated to true if you want to animate it