Improve your Android App Performance by 10X with Compose Stability
Article Summary
Your Jetpack Compose app might be recomposing 10X more than it needs to. The culprit? Stability.
Compose's smart recomposition system only works when it can detect stable parameters. When classes are marked unstable, even unchanged data triggers unnecessary recompositions that tank your performance.
Key Takeaways
- Unstable classes force Compose to recompose even when data hasn't changed
- Use Compose Compiler reports to identify stability issues in your code
- Mark data classes with @Immutable or @Stable to enable skipping
- Collections and lambdas often break stability without you realizing it
Fixing compose stability can reduce recompositions by 10X by letting Compose skip unchanged composables.
About This Article
Android developers often can't figure out why their Compose apps recompose too often. Unstable classes quietly cause unnecessary UI updates, which slows down the app and drains the battery.
The Compose Compiler reports tool can find stability issues in your code. Once you find them, add @Immutable or @Stable annotations to your data classes so Compose can skip recomposing unchanged composables.
Fixing stability problems can cut recompositions by 10X. This lets Compose skip over composables that haven't changed, which makes apps noticeably faster.