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
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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