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Model-driven navigation with Jetpack Compose – From zero to hero

Talkat droidcon New York 2022 · 2022-09-01..09-02· [frontend-architecture, android]
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Argues that navigation should be state-first and shows a concrete Jetpack Compose implementation: navigation targets as sealed class tokens resolved to composables, a backstack implemented as simple list operations (push/pop/replace) enabling fast unit tests instead of instrumentation, and animations wired via updateTransition to animate alpha/offset/rotation. Demonstrates a card-swipe model and view‑pager mapping built in a few hours, and points to the released library Epics with video captures proving the approach works in real apps.

AI-written summary · about

  1. 0:00Introduction and motivation
  2. 5:48Navigating from code
  3. 8:15Navigation state representation
  4. 11:08Building a simple backstack
  5. 13:12Adding transition animations
  6. 17:29Model-driven navigation explained
  7. 20:00Navigation model examples
  8. 23:54Screen fluidity and viewport concept
  9. 25:59Composable navigation
  10. 29:50Summary and Epics library
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