Diagnosing Android Jank with FrameTimeline API

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Diagnose Android jank using FrameTimeline API to identify dropped frames and improve app performance

advanced Published 20 May 2026
Action Steps
  1. Use FrameTimeline API to collect frame timing data
  2. Connect Choreographer frame callbacks to HWUI render thread scheduling
  3. Analyze SurfaceFlinger expected-vs-actual deadlines to identify dropped frames
  4. Use systrace to visualize frame timing data and isolate performance issues
  5. Implement automated CI regression detection using Macrobenchmark FrameTimingMetric
Who Needs to Know This

Android developers and performance engineers can use this API to optimize app performance and reduce jank, improving user experience

Key Insight

💡 FrameTimeline API helps identify exactly which Compose recomposition or layout pass causes dropped frames

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📊 Diagnose Android jank with FrameTimeline API and improve app performance #AndroidDev #PerformanceOptimization

Key Takeaways

Diagnose Android jank using FrameTimeline API to identify dropped frames and improve app performance

Full Article

Deep dive into Android 12+ FrameTimeline API for production jank diagnosis — connecting Choreographer frame callbacks, HWUI render thread scheduling, and SurfaceFlinger expected-vs-actual deadlines to isolate exactly which Compose recomposition or layout pass causes dropped frames, with a practical systrace-based workflow and automated CI regression detection using Macrobenchmark FrameTimingMetric
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