Performance Profiler (Android)

Checklist

Recompositions

• Composables only recompose when state changes
• State properly scoped with remember
• Stable item keys in LazyColumn
• Annotate custom data classes with @Stable or @Immutable
• Defer state reads (wrap in lambdas where possible)
• Avoid backwards writes (never write to a state that was already read higher in the same composable)

Lists

• Use LazyColumn not Column + verticalScroll for large data
• Stable keys via key() parameter
• Lightweight item composables

Memory

• No memory leaks (avoid Activity/View refs)