如何使用SwiftUI实现一个可以读取和写入近场通信标签的近场通信扫描器？

import SwiftUI
import CoreNFC

struct NFCScannerView: View {
    @State private var scannedData: String = ""
    
    var body: some View {
        VStack {
            Text("Scanned Data: \(scannedData)")
                .padding()
            
            Button(action: {
                writeDataToTag()
            }) {
                Text("Write Data to Tag")
                    .padding()
                    .background(Color.blue)
                    .foregroundColor(.white)
                    .cornerRadius(10)
            }
        }
        .onAppear {
            startScanning()
        }
    }
    
    func startScanning() {
        let session = NFCReaderSession(delegate: self, queue: nil, invalidateAfterFirstRead: false)
        session.begin()
    }
    
    func writeDataToTag() {
        let message = NFCNDEFMessage(records: [NFCNDEFPayload.wellKnownTypeTextPayload(string: "Hello, NFC!")])
        let writer = NFCNDEFWriter()
        
        writer.writeNDEF(message) { error in
            if let error = error {
                print("Error writing to tag: \(error.localizedDescription)")
            } else {
                print("Data written to tag successfully.")
            }
        }
    }
}

extension NFCScannerView: NFCReaderSessionDelegate {
    func readerSession(_ session: NFCReaderSession, didDetect tags: [NFCTag]) {
        guard let tag = tags.first else { return }
        
        session.connect(to: tag) { error in
            if let error = error {
                print("Error connecting to tag: \(error.localizedDescription)")
                session.invalidate()
            }
            
            if case let .miFare(smartCard) = tag {
                smartCard.readNDEF { message, error in
                    if let error = error {
                        print("Error reading tag: \(error.localizedDescription)")
                    } else if let message = message {
                        if let payload = message.records.first?.wellKnownTypeTextPayload() {
                            DispatchQueue.main.async {
                                scannedData = payload.string
                            }
                        }
                    }
                    
                    session.invalidate()
                }
            } else {
                session.invalidate(errorMessage: "Unsupported tag found.")
            }
        }
    }
    
    func readerSession(_ session: NFCReaderSession, didInvalidateWithError error: Error) {
        print("Session invalidated: \(error.localizedDescription)")
    }
}

struct ContentView: View {
    var body: some View {
        NFCScannerView()
    }
}

struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView()
    }
}