I am engaged on an app that makes use of Core NFC to detect NFC playing cards, and all the pieces is working fantastic with different playing cards similar to MIFARE or ISO 14443 tags. Nevertheless, I am having bother detecting the Vigik badge particularly. I’ve registered the AID for the Vigik badge accurately in my app’s Entitlements.plist, however once I scan the badge, it doesn’t get detected, though different playing cards are working as anticipated.
Listed here are some particulars about my implementation:
- AID Registration: I’ve registered the proper AID for the Vigik badge within the entitlements file, and the proper tag sort is being polled utilizing NFCTagReaderSession.
- Different Playing cards Detected: NFC playing cards like ISO 14443 and MIFARE are being detected and browse accurately.
//
// ViewController.swift
// testNFCCOre
//
// Created by thoughts on 12/11/24.
//
import UIKit
import CoreNFC
class ViewController: UIViewController, NFCTagReaderSessionDelegate {
var nfcSession: NFCReaderSession?
override func viewDidLoad() {
tremendous.viewDidLoad()
}
@IBAction func onTapScan(_ sender: Any) {
startScanning()
}
func startScanning() {
guard NFCTagReaderSession.readingAvailable else {
print("NFC shouldn't be supported on this machine.")
return
}
// Create a session for uncooked tag studying
nfcSession = NFCTagReaderSession(pollingOption: [.iso14443,.iso18092,.iso15693], delegate: self, queue: DispatchQueue.most important)
// Start the session
nfcSession?.start()
}
// Referred to as when the session turns into lively
func tagReaderSessionDidBecomeActive(_ session: NFCTagReaderSession) {
print("NFC session is lively.")
// You may inform the consumer that the NFC reader is lively or present a message
}
// Referred to as when the session is invalidated (e.g., consumer cancels or an error happens)
func tagReaderSession(_ session: NFCTagReaderSession, didInvalidateWithError error: Error) {
if let error = error as? NFCReaderError {
change error.code {
case .readerSessionInvalidationErrorUserCanceled:
print("Consumer canceled the session.")
case .readerSessionInvalidationErrorSessionTimeout:
print("Session timed out.")
case .readerSessionInvalidationErrorSystemIsBusy:
print("System is busy. Please strive once more.")
default:
print("Session invalidated with error: (error.localizedDescription)")
}
} else {
print("Session invalidated with error: (error.localizedDescription)")
}
}
// Referred to as when the session detects NFC tags
func tagReaderSession(_ session: NFCTagReaderSession, didDetect tags: [NFCTag]) {
let tag = tags.first!
session.join(to: tag) { error in
if let error = error {
print("Connection failed: (error.localizedDescription)")
return
}
print("Tag linked efficiently!")
// Proceed processing the tag relying on its sort
for tag in tags {
change tag {
case .miFare(let mifareTag):
print("MIFARE tag detected: (mifareTag)")
self.handleMifareTag(mifareTag)
case .feliCa(let feliCaTag):
print("FeliCa tag detected: (feliCaTag)")
self.handleFeliCaTag(feliCaTag)
case .iso7816(let iso7816Tag):
print("ISO 7816 tag detected: (iso7816Tag)")
let aidData = Knowledge([
0xA0, 0x00, 0x00, 0x00, 0x86, 0x32, 0x05, 0x49,
0x47, 0x49, 0x4B, 0xAE, 0x5F, 0x33
])
// Create APDU SELECT command
let command = NFCISO7816APDU(
instructionClass: 0x00,
instructionCode: 0xA4,
p1Parameter: 0x04,
p2Parameter: 0x00,
knowledge: aidData,
expectedResponseLength: -1
)
// Ship the APDU command
iso7816Tag.sendCommand(apdu: command) { response, sw1, sw2, error in
if let error = error {
print("Error sending APDU: (error.localizedDescription)")
return
}
// Parse the response
print("Response: (response)")
print("Standing phrases: SW1=(sw1), SW2=(sw2)")
// Course of particular software template if wanted
if sw1 == 0x90 && sw2 == 0x00 {
print("Utility chosen efficiently!")
} else {
print("Utility choice failed with standing phrases (sw1), (sw2)")
}
}
self.handleIso7816Tag(iso7816Tag)
case .iso15693(let nfcATag):
print("ISO 15693 tag detected: (nfcATag)")
self.handleNfcATag(nfcATag)
default:
print("Unknown tag sort detected.")
}
}
session.invalidate()
}
}
// Deal with MIFARE tag
func handleMifareTag(_ mifareTag: NFCMiFareTag) {
// Course of MIFARE tag knowledge
print("MIFARE UID: (mifareTag.identifier)")
}
// Deal with FeliCa tag
func handleFeliCaTag(_ feliCaTag: NFCFeliCaTag) {
// Print out there info from NFCFeliCaTag
print("FeliCa tag detected.")
}
// Deal with ISO 7816 tag (sensible playing cards)
func handleIso7816Tag(_ iso7816Tag: NFCISO7816Tag) {
// Course of ISO 7816 tag knowledge
print("Tag Identifier: (iso7816Tag.identifier.hexString())")
let hexString = "4a6f686e" // Hex for "John"
if let decodedText = hexStringToText(hexString: iso7816Tag.identifier.hexString()) {
print("Decoded textual content: (decodedText)") // Outputs: John
}
print("Utility Knowledge: (String(describing: iso7816Tag.applicationData))")
print("Historic Bytes: (String(describing: iso7816Tag.historicalBytes))")
if let historicalBytes = iso7816Tag.historicalBytes {
let hexString = historicalBytes.map { String(format: "%02hhx", $0) }.joined()
print("Historic Bytes as Hex: (hexString)")
}
print("Chosen AID: (iso7816Tag.initialSelectedAID)")
}
// Deal with NFC-A tag
func handleNfcATag(_ nfcATag: NFCISO15693Tag) {
// Course of NFC-A tag knowledge
print("NFC-A UID: (nfcATag.identifier)")
}
// Convert Hex String to Textual content
func hexStringToText(hexString: String) -> String? {
var hex = hexString
var knowledge = Knowledge()
whereas hex.depend > 0 {
let c = hex.prefix(2)
hex = String(hex.dropFirst(2))
if let byte = UInt8(c, radix: 16) {
knowledge.append(byte)
}
}
return String(knowledge: knowledge, encoding: .utf8)
}
}
// Convert Knowledge to Hex String
extension Knowledge {
func hexString() -> String {
return self.map { String(format: "%02hhx", $0) }.joined()
}
func hexStringToData(hexString: String) -> Knowledge? {
var knowledge = Knowledge()
// Make sure the hex string is in legitimate type (even size)
let cleanedHexString = hexString.replacingOccurrences(of: " ", with: "").uppercased()
// Course of each pair of characters (every byte)
var startIndex = cleanedHexString.startIndex
whereas startIndex < cleanedHexString.endIndex {
let endIndex = cleanedHexString.index(startIndex, offsetBy: 2)
let hexPair = String(cleanedHexString[startIndex..