Can iOS read multiple tags without dismissing its UI?

[dcanora]

I'm trying to create a ticketing-type app. These are not NDEF enconded, and I'm using .sendMifareCommandIOS to read the tags. I'd like to read multiple tags in succession, but on iOS that doesn't seem possible. The only way I can make it work is if the iOS NFC UI is dismissed after each read and the user hits my Start Scanning button again to read the next tag.

Am I missing something or is this a limitation on iOS?

[pke]

in iOS there is the invalidateAfterFirstRead flag in the native code, which allows to read multiple tags

https://developer.apple.com/documentation/corenfc/nfcndefreadersession/2882064-init

Not sure this is exposed by this lib

[dcanora]

Great info, thank you @pke!

Anyone know if this is supported in the lib?

[nik27]

It is exposed but I've never used it so I don't know if it works as expected.

It's part of RegisterTagEventOpts and can be used in requestTechnology function as prop of options object (second argument). Like this:

await nfcManager.requestTechnology(NfcTech.Ndef, {invalidateAfterFirstRead: false})

[dcanora]

Thanks, @nik27! I was able to use NfcManager.restartTechnologyRequestIOS() for subsequent reads, which is working nicely. Cheers.