Optimizing Recomposition in Jetpack Compose ??
Pulkit Loya
SDE @TrulyMadly | Scalable App Architecture | Kotlin | Jetpack Compose | React Native Expo | Ex- NxtGen | Problem solving
Recomposition is the backbone of Jetpack Compose, enabling automatic UI updates when state changes. This is a major improvement over XML-based UI, where we relied on two-way data binding or manually updating UI via LiveData observers.
However, inefficient recomposition can lead to performance issues, including UI lag and unnecessary redraws.
Best Practice to Minimize Recomposition ??
Instead of writing the entire UI in a single composable function, break it down into smaller, well-structured functions.
For example, if your app screen has:
? Header
? Main Content
? Footer.
If all three sections are part of the same function, any change in the main content will trigger recomposition for the header and footer—even when they don’t need updates!
Solution? Create separate composables:
?? Header()
?? MainContent()
?? Footer()
Now, when MainContent() recomposes, it won’t impact the header or footer, resulting in smoother performance and better efficiency.
TL;DR:
?? Break UI into multiple composables
?? Reduce unnecessary recompositions
?? Optimize Jetpack Compose for a lag-free experience ??
Have you encountered recomposition-related performance issues in Compose? Share your experiences below! ??
#android #kotlin #software #jetpack #sde #coding