Supporting stylus input on Android using Jetpack Ink
summary
Jetpack Ink provides low latency inking with modular pieces for strokes, brush and rendering plus geometry authoring and storage and is used by Pixel circle to search and Google Docs. The library at 1.0.0-alpha06 gives a Compose drawing composable that handles in‑flight vs finished strokes, exposes stock brushes like pressure pen latest and a highlighter, and the sample app implements color and tool selectors, rotation-safe short‑term persistence, and works well though long‑term persistence and docs are still sparse.
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chapters (11)
- 0:00Stylus support intro
- 3:40Why stylus matters
- 5:05Jetpack Ink API overview
- 7:09Jetpack Ink modules
- 9:34Drawing surface setup
- 12:49Brush properties config
- 15:24Stroke handling
- 16:50Ink composable rendering
- 18:18Library feedback
- 19:23Next steps and resources
- 20:46Q&A
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