Graphics Something Android Something Performance
summary
Shows concrete tools and changes: FrameMetrics API (Android N) lets a Window callback deliver per-frame durations for input, animation, draw and GPU submit so apps can aggregate percentiles (watch the 90th) instead of FPS; dumpsys gfxinfo and a new GL extension expose SurfaceFlinger timing. Recommends systrace for correlating jank, describes AsyncLayoutInflater limitations and the RecyclerView prefetch in Support Lib v25 that does adjacent create/bind ahead of time to cut scroll jank. Also covers dithering fixes and mipmaps for better scaled bitmap quality.
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