“nfc”

How do i address the NFC coil reader on the iphone 12? I am able to find documentation about the NFC chip to make an NFC scanning app but can not find any infomation about the Coil reader present in the new Magsafe technology.

I have been trying to read a NFC tag with NFCTagReaderSession because i need to get the uid of the tag. I already configured the formats on the entitlements file and the aids of the possible tags (of NXP), the reader session starts but the tagReaderSession didDetect is never been triggered. I am using iso 7816. It works if i use NFCNDEFReaderSession but it allows me to read just the info in the tag, like text, uris and others not the uid. I really don't know what is happening :( Configured aids: 1- A0000003964D66344D0002 2- D2760000850100 3- D2760000850101

Hi Guys, if we use our NFC Chip (Background Scanning) with our domain xyz.tld/pages (NFC with URL) than we get following Error: CPSErrorDomain error 2. If we use other URL, than it's works fine, for example, following URLS works fine: xyz.tld xyz.tld/ xyz.tld/page xyz.tld/page/xyz xZz.tld/pages But if we add: xyz.tld/pages xyz.tld/pages/xyz than we got the error CPSErrorDomain-Error 2 we also tried (with different tld) xyz.tlx/pages or x.xyz.tlx/pages (Subdomain, www. to) what works fine.... It makes no sense? Or apple blocked our domain? Scanning with Iphone X or other normal NFC Reader are not a problem and works fine, only Background scanning have this issue. This happen only with background scanning on iOS 14.1 (iphone 12 pro ) and ios 14.4 (18D5030e) (iphone 11 pro) with iphone X 14.1 (18A395) native NFC Scanner it works fine.

I'm trying to implement an app with NFC. I have to connect to MIfare tag. I'm notified in tagReaderSection function and the field tags contains a tag, but the value of this tag is [0] = (NFCTag) (0x40) Printing description of ((CoreNFC.NFCTag) (0x40)): ▿ NFCTag t- miFare : (lldb) and im not able to connect to it. In the info file I have add the string: com.apple.developer.nfc.readersession.iso7816.select-identifiers D2760000850101 nfcTagReaderSession = NFCTagReaderSession(pollingOption: [.iso14443], delegate: self) tttt tttnfcTagReaderSession?.begin() tfunc tagReaderSession(_ session: NFCTagReaderSession, didDetect tags: [NFCTag]) { ttt tttt ttttif case let NFCTag.miFare(tag) = tags.first! { ttttttnfcTagReaderSession?.connect(to: tags.first!) ttttttttttt { What am I doing wrong?? thanks for the support PS: the NFC chip is Mifare Ultralight version 2 productType Ntag(04) [Xcode 12.0, IOS 13.0]

I am trying an NFC write with Mifare Ultralight and I get the following error: Optional(Error Domain=NFCError Code=1 Feature not supported UserInfo={NSLocalizedDescription=Feature not supported}) My code for the write request is as follows: if case let NFCTag.miFare(tag) = tags.first! { ttttttlet dataMifare: [UInt8] = [240, 0, 0, 0] // READ page 4 + CRC ttttttlet dataPacketMifare = Data(bytes: dataMifare, count: dataMifare.count) ttttttsession.connect(to: tags.first!) { (error: Error?) in tlet apdu = NFCISO7816APDU(instructionClass: 0xFF, instructionCode: 0xD6, p1Parameter: 0x00, p2Parameter: 0xFF, data: dataPacketMifare, expectedResponseLength: 0x02) ttttttt tttttttt tttttttttag.sendMiFareISO7816Command(apdu) { (apduData, sw1, sw2, error) in ttttttttttlet tagUIDData = tag.identifier ttttttttttsession.invalidate(errorMessage: Test) ttttttttttdebugPrint(apduData) ttttttttttdebugPrint(error) ttttttttttdebugPrint(tag.identifier) I'm writing to a custom device where the value 0xFF means a write request.

Recently Apple updated Xcode and had one change for App Clips. For a URL to launch it needs the additional of nullable See link here. - https://developer.apple.com/documentation/app_clips/apactivationpayload/3580308-url?changes=latest_major&language=objc One problem. My App Clip works fine but there is nowhere in the code where to use the code defined in the link, either the previous or the new updated code. I only use NFC for the App Clip. So does this not involve NFC? It mentions payload which I'm used to hearing about with NFC chips, so that's why I'm wondering about it. I've also noticed NFC reading less consistently as background reader. Please let me know if this line has anything to do with NFC, and why my app would still work even though I don't even use this line anywhere in my code. Thank you truly and any help is appreciated. I just don't want to be missing something that might break my app in an upcoming update.

It was popping up normal as a notification before IOS14.01 but then after that i get a notification saying The operation couldn't be completed. (CPSErrorDomain error 2.)