platform-guideline 1 linked patterns checked
Google ML Kit: Google code scanner
Documents Android's Google Code Scanner API for QR and barcode scanning without app camera permission, on-device image processing, returned Barcode objects, module availability, auto-zoom, and built-in scanner UI tradeoffs.
Read with a purpose
What this source can teach
Use this source to understand a platform convention and the setting it was designed for.
- Start with the original. Open the source and find the guidance or example relevant to your task.
- Trace the connection. Use the claim notes below to see how this site applies the source to specific patterns.
- Check the setting. Compare the source's platform, people, and constraints with your own decision.
Pattern Decisions This Source Supports
| Pattern | Supported decision | Required contract | Claim note |
|---|---|---|---|
| QR scan | Choose QR scan when decoding a code and acting on the decoded payload is the central task. | Scanning starts only after users choose a QR-dependent task and can see purpose, fallback, and privacy impact. | Supports delegated Android QR scanning without app camera permission, auto-zoom, and returned barcode objects. |
Comparisons supported by this source
- QR scan vs camera capture vs permission request vs file upload vs two-factor authentication vs security warning
Supports built-in Android scanning without app camera permission, returned barcode objects, auto-zoom, and scanner UI tradeoffs.
Evidence Role
This source is treated as platform-guideline evidence. Its value comes from the specific claims and setting described above.
Publisher: Google for Developers. Last checked: .