AsyncDisplayKit/_docs/scroll-node.md

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ASScrollNode is literally a wrapped UIScrollView.

Basic Usage

In case you're not familiar with scroll views, they are basically windows into content that would take up more space than can fit in that area.

Say you have a giant image, but you only want to take up 200x200 pts on the screen.

SwiftObjective-C

UIImage *scrollNodeImage = [UIImage imageNamed:@"image"];
ASScrollNode *scrollNode = [[ASScrollNode alloc] init];
scrollNode.preferredFrameSize = CGSizeMake(200.0, 200.0);
UIScrollView *scrollNodeView = scrollNode.view;
[scrollNodeView addSubview:[[UIImageView alloc] initWithImage:scrollNodeImage]];
scrollNodeView.contentSize = scrollNodeImage.size;

let scrollNodeImage = UIImage(named: "image")
let scrollNode = ASScrollNode()

scrollNode.preferredFrameSize = CGSize(width: 200.0, height: 200.0)

let scrollNodeView = scrollNode.view
scrollNodeView.addSubview(UIImageView(image: scrollNodeImage))
scrollNodeView.contentSize = scrollNodeImage.size

As you can see, the scrollNode's underlying view is a UIScrollView.