~/talk

Developing Wear OS Watch Faces

Talkat droidcon Berlin 2025 · 2025-09-24..09-26· [android, pwa]
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Covers Watch Face Format v4, tools and a live demo that builds an APK on the phone, validates it, and pushes it to the watch where it installs and can be set active. Uses Watch Face Designer (Figma plugin), Watch Face Studio and Android Studio; a pack library builds APKs, the watch face validator emits non‑expiring tokens (open source) and the data layer transfers the APK. The Watch Face Push API exposes add/update/remove/setActive and supports default faces, enabling marketplace apps like Facer and editor apps like Poochi; the demo works end‑to‑end.

AI-written summary · about

  1. 0:00Wear OS watch faces intro
  2. 1:03Watch faces importance
  3. 2:48Designing user watch faces
  4. 4:12Watch Face Format tools
  5. 6:43Android Studio tools
  6. 7:26Watch Face Push API
  7. 8:31Demo watch face creation
  8. 10:52Demo behind the scenes
  9. 11:33Phone-side push workflow
  10. 12:16Validating watch faces
  11. 13:42Sending to the watch
  12. 14:04Watch-side push implementation
  13. 15:52Setting default watch faces
  14. 16:35Monetization benefits
  15. 16:56Real-world push examples
  16. 17:39Watch face resources
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