How Hard Can a List Be? A Tale of APIs, Perf, and People
summary
A new Wear OS list component called TransformingLazyColumn provides a single dynamic height modifier that drives per‑item scaling and graphics layer transforms, after four rewrites to find the essence. Adoption strategy uses sample code, an opinionated Material layer, and a phased rollout starting with a no bounce MVP, seven months of coarse behavior for partners, then an iterative measured algorithm (gradient‑descent style) to tune over‑scroll and performance. Tracing and APK‑based client tests reveal real bottlenecks.
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chapters (9)
- 0:00Transforming lazy column
- 3:20Fisheye effect complexity
- 6:10Strategic API design
- 10:32API layering in material
- 13:06Driving adoption through collaboration
- 17:44Iterative API adoption
- 20:30Component UX with empathy
- 21:15Performance goals and measurement
- 24:05Key takeaways
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