How to Build Performance-Driven Android Apps
summary
How to build high-performance Android apps by measuring real device behavior: always test power on battery (unplug or simulate via ADB), inspect power_profile.xml in framework-res.apk, and use dumpsys battery with Battery Historian and adb bugreport to get per‑percent drain timelines (example: Nexus 5 camera LED ~540mA ≈ 4 hours on 2300mAh). Find UI jank using GPU rendering profile, dumpsys gfxinfo, and systrace; detect overdraw with Developer Options and HierarchyViewer; and locate memory leaks with LeakCanary or heap analysis tools.
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chapters (15)
- 0:00Introduction
- 5:35Performance principles
- 7:20Power settings
- 12:45Power consumption axes
- 17:27Battery history
- 21:07Background processing
- 23:39UI performance metrics
- 26:1360FPS rendering
- 29:26Rendering delay causes
- 31:51Overdraw detection
- 35:21GPU rendering profiling
- 39:00Network memory optimization
- 41:53Memory leak detection
- 44:45CPU optimization tools
- 46:32Summary
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