nfc

The proximity sensor has absolutely nothing to do with the NFC chip. It's a light sensor that is sitting next to or around the speaker and front camera of your iPhone (and it has been there since the first iPhone, before iPhones had front facing cameras or NFC).iOS 11 does give third-party apps the ability to read NDEF-formatted NFC tags, which expands the capabilities of the NFC chip of iPhone 7 devices (and newer) beyond Apple Pay.

Hi Martin,I saw the same issue since iOS11Beta3....I didn't know why, but I suspected NFC scanning thread while opening URL.My workaround was to stop NFCScan, then to add a short delay in didDetectNDEF callback before calling openURL. As I thought it came from my code, I didn't post a possible bug....but now, I have a doubt :-)Here after, my workaround :func readerSession(_ session: NFCNDEFReaderSession, didDetectNDEFs messages: [NFCNDEFMessage]) { stopNFCReaderSession().......blablabla DispatchQueue.main.asyncAfter(deadline: .now() + 2.0) { UIApplication.shared.open(...) } }Hope it helps.BR,Vincent

I've been trying to work with the same thing. I was able to get a very basic identifier for lego dimentions characters, but it seems that the ID is the same on certain vehicles. I also tried scanning disney infinity, skylanders figures, and Amiibo as well. None worked, however the skylanders did light up when the iPhone was in scanning mode, which is interesting. This leads me to believe that none of them use just NFC, but rather some mixture of NFC and RFID. I am not very familiar with NFC or RFID so I could be wrong. Technically CoreNFC supports RFID, it just hasn't been implemented yet, so hopefully we will see that and be able to implement that into our apps. Imagine an app that changes the theme based on a scanned Amiibo (That's what I was working on).

Tags can be read, not written.You can get details here :h ttps://gototags.com/blog/apple-ios-11-supports-reading-nfc-tags-iphone-7-iphone-8-core-nfc/What NFC functions are available?Only reading NFC tags is supported in iOS 11, not writing NFC tags or card emulation.Why just support reading NFC tags and not writing?In our experience, regular consumers just don’t encode NFC tags. Only geeks (like us) and a few verticals support it. In 99% of projects we have worked on (millions of NFC tags), the tags are pre-encoded before delivery to the consumer. The implication of this is that NFC tags must be NDEF encoded in order to be read by an iPhone.

Hi Caster,I develop an app using NFC scan, and I confirm you can't access the tag UID for now.I'd like to know too if it is planned (and when).

There they seem to have found a way to access the UID :https://github.com/hansemannn/iOS11-NFC-Example/issues/16But it is likely a private API, which can cause rejection from the AppStore...

It is possible to read protected NFC tags in iOS?I searched around NFC NDEF protocols in Apple documentation but there is no functions that require a challenge/handshake for NFC tags. Is there a way to interact with these types of NFC tags?