Skip to content

[iOS][FIX] resend to Flutter all tags, even if there's no NDEF data written - #248

Open
dlopez-penbase wants to merge 1 commit into
okadan:mainfrom
dlopez-penbase:fix/unable_to_scan_nfc_tags_with_no_data
Open

[iOS][FIX] resend to Flutter all tags, even if there's no NDEF data written#248
dlopez-penbase wants to merge 1 commit into
okadan:mainfrom
dlopez-penbase:fix/unable_to_scan_nfc_tags_with_no_data

Conversation

@dlopez-penbase

@dlopez-penbase dlopez-penbase commented Sep 24, 2025

Copy link
Copy Markdown

PR related to issue #244

I fixed the regression by forcing native code to send data to Flutter no matter what, even if there's no NDEF data inside of them

@dlopez-penbase dlopez-penbase mentioned this pull request Sep 24, 2025
Closed
@dlopez-penbase dlopez-penbase changed the title [FIX] resend to Flutter all tags, even if there's no NDEF data written [iOS][FIX] resend to Flutter all tags, even if there's no NDEF data written Sep 24, 2025
@mvn-quannguyen2-dn

mvn-quannguyen2-dn commented Oct 8, 2025 •
edited
Loading

Copy link
Copy Markdown

Hello @okadan Cc @dlopez-penbase

My project is also facing a similar issue, could you release this patch, thank you so much!!!

@JernejPoligram

JernejPoligram commented Oct 14, 2025

Copy link
Copy Markdown

+1

@dlopez-penbase

dlopez-penbase commented Oct 22, 2025

Copy link
Copy Markdown
Author

@mvn-quannguyen2-dn @JernejPoligram
I released a version in my local repository, all is noted in the readme if you need to import it in your project :

https://github.com/dlopez-penbase/flutter-nfc-manager

@jeremy-giles

jeremy-giles commented Jan 23, 2026

Copy link
Copy Markdown

Hello, the fix proposed by @dlopez-penbase resolves the similar issue we were experiencing: tags not being detected by the latest version of the library (4.1.1).

Here's a log excerpt from when reading an undetected tag, with no errors.
par défaut 08:46:02.197499+0100 nfcd -[_NFReaderSession _sync_connect:completion:]:662 Runner (1318) _NFReaderSession-790847160.401237 par défaut 08:46:02.197999+0100 nfcd -[NFDriverWrapper connectTag:]:67 Connecting to tag: <NFTagInternal: 0x9e8b222a0>-2440FF0B46987309 { Tech=A Type=MiFare ID=1654BD1A9A5E2B silentType=0 SAK=(null) ATQA=(null) sfgi=0x0 } par défaut 08:46:02.205374+0100 nfcd -[NFDriverWrapper disconnectTag:tagRemovalDetect:]:121 disconnecting from tag: <NFTagInternal: 0x9e8b222a0>-2440FF0B46987309 { Tech=A Type=MiFare ID=1654BD1A9A5E2B silentType=0 SAK=(null) ATQA=(null) sfgi=0x0 }, tagRemovalDetect=0 par défaut 08:46:02.209775+0100 nfcd -[NFDriverWrapper connectTag:]:67 Connecting to tag: <NFTagInternal: 0x9e8b222a0>-2440FF0B46987309 { Tech=A Type=MiFare ID=1654BD1A9A5E2B silentType=0 SAK=(null) ATQA=(null) sfgi=0x0 } par défaut 08:46:02.223547+0100 nfcd -[NFDriverWrapper queryTagNDEFCapability:hasNdefAbility:error:]:200 read=1 write=1 capacity=233, messageSize=0 tag=<NFTagInternal: 0x9e8b222a0>-2440FF0B46987309 { Tech=A Type=MiFare ID=1654BD1A9A5E2B silentType=0 SAK=(null) ATQA=(null) sfgi=0x0 } par défaut 08:46:02.224637+0100 nfcd -[_NFReaderSession ndefReadWithCompletion:]:965 Runner (1318) _NFReaderSession-790847160.401237 par défaut 08:46:02.225145+0100 nfcd -[NFDriverWrapper disconnectTag:tagRemovalDetect:]:121 disconnecting from tag: <NFTagInternal: 0x9e8b222a0>-2440FF0B46987309 { Tech=A Type=MiFare ID=1654BD1A9A5E2B silentType=0 SAK=(null) ATQA=(null) sfgi=0x0 }, tagRemovalDetect=0 par défaut 08:46:02.230370+0100 nfcd -[NFDriverWrapper connectTag:]:67 Connecting to tag: <NFTagInternal: 0x9e8b222a0>-2440FF0B46987309 { Tech=A Type=MiFare ID=1654BD1A9A5E2B silentType=0 SAK=(null) ATQA=(null) sfgi=0x0 } par défaut 08:46:02.242456+0100 nfcd -[NFDriverWrapper queryTagNDEFCapability:hasNdefAbility:error:]:200 read=1 write=1 capacity=233, messageSize=0 tag=<NFTagInternal: 0x9e8b222a0>-2440FF0B46987309 { Tech=A Type=MiFare ID=1654BD1A9A5E2B silentType=0 SAK=(null) ATQA=(null) sfgi=0x0 } erreur 08:46:02.246650+0100 nfcd NFDriverRemoteDevReadNdef:5627 phLibNfc_Ndef_Read failed: 0x009d par défaut 08:46:02.247095+0100 nfcd -[NFDriverWrapper readNdefDataFromTag:messageSize:error:]:307 zero-length message par défaut 08:46:02.249274+0100 nfcd -[_NFReaderSession _sync_restartPolling:]:1577 Runner (1318) _NFReaderSession-790847160.401237 par défaut 08:46:02.249756+0100 nfcd -[NFPowerAssertion releasePowerAssertion:]:129 ExpressMode does not hold assertion

stokkeAtMonta added a commit to monta-app/flutter-nfc-manager that referenced this pull request Mar 19, 2026
@stokkeAtMonta
fix: resend tag to Flutter even if NDEF read/query fails (blank tags)
86bc7b9 
When NDEF query or read returns an error (e.g. blank NTAG213 tags),
return the tag pigeon instead of nil so the tag is still surfaced to
Flutter's onDiscovered callback rather than being silently dropped.

Ref: okadan#248
arisecode added a commit to arisecode/flutter-nfc-manager that referenced this pull request Jul 14, 2026
@arisecode
fix(ios): report tag to Flutter even when queryNDEFStatus/readNDEF er…
ecd1fdd 
…rors

Cherry-picks the fix from okadan#248 (addressing
regression okadan#244). Non-NDEF tags such as EMV payment cards reliably
fail the NDEF query/read calls that convert() runs after populating
tag-specific data (iso7816, iso15693, etc.). Previously that error
caused the whole tag to be dropped before onDiscovered ever fired on
the Dart side. Now the already-populated pigeon is still reported.
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Reviewers

No reviews

Assignees

No one assigned

Labels

None yet

Projects

None yet

Milestone

No milestone

Development

Successfully merging this pull request may close these issues.

4 participants

@dlopez-penbase @mvn-quannguyen2-dn @JernejPoligram @jeremy-giles