Tips to Boost Compose Performance
How to optimize Compose performance by deferring state reads?
1The Basics of Compose Performance
Compose is a tool for modern UI development in Android. Understanding its three main phases—Composition, Layout, and Drawing—is crucial for boosting performance. Reducing the number of these phases can significantly enhance performance.
2The Impact of State Reads
Where state values are read determines which phases Compose will rerun. If a state is read during Composition, all phases rerun, which can negatively impact performance.
3Performance Gain with Deferral
Deferring state reads to the Layout or Drawing phase allows skipping the Composition phase. This significantly boosts performance, especially with frequent state changes.
4The Role of Lambda Modifiers
Lambda versions like Modifier.offset and Modifier.graphicsLayer defer state reads, enhancing performance. This method is particularly effective for frequent state changes like dragging.
5Pushing State Reads Down the Tree
Pushing state reads as far down the tree as possible reduces the recomposition scope. This ensures only relevant parts rerun, improving performance.
6Mental Model for Performance Optimization
When reading state in Compose code, it's important to question whether the value changes frequently and causes unnecessary recomposition. Deferring state reads when necessary can significantly boost performance.
Original article: ProAndroidDev - Medium — Compose Performansını Artırmanın İpuçları