Optimizing Render Performance of Jetpack Compose
summary
Measured initial render times show pure XML at 345 ms XML versus a debug Compose build at 1,418 ms Compose debug; switching to release with R8 drops Compose to about 574 ms Compose with R8, and adding profile installer cuts it to ~565 ms. Profiling uses Android Studio / perfetto.dev to find JIT hotspots; strategies that work are: convert whole screens (one Compose root) not many small ComposeViews, hoist heavy calculations into ViewModel or remember, use keys in LazyColumn, and precompile hot code. The team ships a full Compose app with acceptable low‑end performance.
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chapters (19)
- 0:00Start
- 9:20Convert Sections of the Composable as Blocks
- 10:29Performance Guideline
- 13:40State in Composables
- 16:50The Remember Block
- 20:03Four Is Use State and Remember To Minimize the Calculation within Your Composables
- 21:20Lazy Columns
- 25:01Annotation Processing
- 28:15Android 7
- 32:00Profile Installer
- 32:13The Android Profiler Tool
- 33:37Guidelines for Faster Composable Renders
- 35:34Questions and Answers
- 38:12Does State Hoisting Improve Composed Performance
- 38:51State Hoisting
- 39:56Is It Possible To Share the Xml Layout and Compose
- 40:37Should You Use Compose or Xml
- 49:23Making Composable Previews
- 50:24Composable Preview
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