A look into debugging a performance issue in Jetsnack and how to fix it in Compose. Learn why deferring state reads by using a lambda means composition can be skipped.
Key points
- The three phases of Compose are composition, layout, and draw.
- Compose can skip a phase if nothing has changed. Sometimes Compose will entirely skip composition to optimize performance.
- You can use a lambda modifier can skip composition.
- Skipping recomposition can help reduce jank during scrolling.
- The Layout Inspector in Android Studio is a good tool to help you debug recomposition issues.
Resources
Parent collections
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Compose basics
This series of videos introduces various Compose APIs,
quickly showing you what's available and how to use them.
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