nfc: reader mode on Android, and raw commands to a tag without NDEF
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Assessment
- Difficulty
- 5/5
- Estimated time
- Over a week
- Newbie friendliness
- 38/100
Research direction
Start with android/src/main/java/NfcPlugin.kt:481 and :494 to trace the current Android scanning flow and its foreground dispatch behavior. Then locate the Android and iOS NFC implementations to see how tag reads are exposed; the issue names IsoDep, NfcA, and NFCTagReaderSession as relevant entry points. Done means supporting Android reader mode and raw tag commands on both platforms, including tags without NDEF.
Written by the indexing model from the issue text.
Description
tauri-plugin-nfc 2.4.2.
Two capabilities a point-of-sale or asset-tracking app needs when it reads tags that carry no NDEF message:
- Reader mode on Android. Scanning uses foreground dispatch (
enableForegroundDispatch,android/src/main/java/NfcPlugin.kt:494), and the code marks reader mode as the intended path (:481). Foreground dispatch lets the system's own tag handling and sounds run beside the app. - Raw commands to a tag. There is no way to exchange commands with a tag directly: no
transceiveoverIsoDeporNfcAon Android, and none over anNFCTagReaderSessiontag on iOS. A tag that holds an identifier and no NDEF message can only be read by its identifier.
- Dominant language
- Rust
- Stars
- 1.8k
- Forks
- 637
- Avg merge
- 5d 3h
- Merged PRs (30d)
- 36
Getting set up
- No Dockerfile or Docker Compose file
- No pull request template
- Read the contributing guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
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