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46 lines
1.5 KiB
Markdown
Executable File
46 lines
1.5 KiB
Markdown
Executable File
---
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title: ASScrollNode
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layout: docs
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permalink: /docs/scroll-node.html
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prevPage: video-node.html
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nextPage: automatic-layout-containers.html
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---
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`ASScrollNode` is literally a wrapped `UIScrollView`.
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### Basic Usage
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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.
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Say you have a giant image, but you only want to take up 200x200 pts on the screen.
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<div class = "highlight-group">
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<span class="language-toggle"><a data-lang="swift" class="swiftButton">Swift</a><a data-lang="objective-c" class = "active objcButton">Objective-C</a></span>
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<div class = "code">
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<pre lang="objc" class="objcCode">
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UIImage *scrollNodeImage = [UIImage imageNamed:@"image"];
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ASScrollNode *scrollNode = [[ASScrollNode alloc] init];
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scrollNode.preferredFrameSize = CGSizeMake(200.0, 200.0);
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UIScrollView *scrollNodeView = scrollNode.view;
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[scrollNodeView addSubview:[[UIImageView alloc] initWithImage:scrollNodeImage]];
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scrollNodeView.contentSize = scrollNodeImage.size;
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</pre>
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<pre lang="swift" class = "swiftCode hidden">
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let scrollNodeImage = UIImage(named: "image")
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let scrollNode = ASScrollNode()
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scrollNode.preferredFrameSize = CGSize(width: 200.0, height: 200.0)
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let scrollNodeView = scrollNode.view
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scrollNodeView.addSubview(UIImageView(image: scrollNodeImage))
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scrollNodeView.contentSize = scrollNodeImage.size
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</pre>
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</div>
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</div>
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As you can see, the scrollNode's underlying view is a `UIScrollView`.
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