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18 lines
787 B
Markdown
Executable File
18 lines
787 B
Markdown
Executable File
---
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title: Layer Backing
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layout: docs
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permalink: /docs/layer-backing.html
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next: synchronous-concurrency.html
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---
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Layer-backing. In some cases, you can substantially improve your app's performance by using layers instead of views. Manually converting view-based code to layers is laborious due to the difference in APIs. Worse, if at some point you need to enable touch handling or other view-specific functionality, you have to manually convert everything back (and risk regressions!).
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With nodes, converting an entire subtree from views to layers is as simple as...
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```
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rootNode.layerBacked = YES;
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```
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...and if you need to go back, it's as simple as deleting one line. We recommend enabling layer-backing as a matter of course in any custom node that doesn't need touch handling.
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