~/talk

View into the abyss

on YouTube 27m
Talkat DroidKaigi 2016 · 2016-02-18..02-19· [android]

speaker

name:Mori Masaki
links:none on file

resources

video:https://youtu.be/cLjbUqmyop0
slides:none on file

summary

Explains how Android actually composes UI by walking the view tree with measure/layout/draw and shows Device Monitor screenshots and code-level examples. Claims SmartNews supports Android 2.2 and the app family reaches about 15 million installs. Describes a custom page‑flip built with FrameLayout plus per-child clipping, overrides measure to reflow children (works and speeds rendering), and practical optimizations: requestLayout avoidance, cached measure results and using setLayerType for smoother animations.

AI-written summary · about

chapters (11)

  1. 0:00Introduction to SmartNews
  2. 1:17Android 2.2 support reasons
  3. 3:17View structure and hierarchy
  4. 6:48View sizing and layout
  5. 12:14View remeasurement impact
  6. 16:44Avoiding requestLayout
  7. 19:13View drawing and invalidate
  8. 21:53Page flip animation
  9. 23:37Partial view updates
  10. 24:27Hardware layer usage
  11. 25:10Performance improvement importance

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