CoreNFC调试无法正常工作

Question

如何在xcode-9上以编程方式工作CoreNFC

func readerSession(_ session: NFCNDEFReaderSession, didInvalidateWithError error: Error) {
    //What I need to do here
}

func readerSession(_ session: NFCNDEFReaderSession, didDetectNDEFs messages: [NFCNDEFMessage]) {
    //What I need to do here
}

override func viewDidLoad() {
    super.viewDidLoad()

    let sessionReader = NFCNDEFReaderSession.init(delegate: self, queue: nil, invalidateAfterFirstRead: true)
    let nfcSession = NFCReaderSession.self

    let nfcTag = NFCTagCommandConfiguration.init()
    let tagType = NFCTagType(rawValue: 0)

    sessionReader.begin()

}

我想知道读取一些NFC标签需要做些什么.

Answer 1

它有四个步骤可以使它工作:

1. 将NFC标签权限添加到Apple开发人员门户中的应用标识符

2. 将Code Signing Entitlement文件添加到项目并构建设置,并添加以下原始键和值:

3. 将使用说明添加到Info.plist:

4. 实现委托并将其传递给NFCNDEFReaderSessioninit,如下所示:

   import UIKit
   import CoreNFC
   
   @UIApplicationMain
   class AppDelegate: UIResponder, UIApplicationDelegate, NFCNDEFReaderSessionDelegate {
   
       var window: UIWindow?
       var session: NFCNDEFReaderSession?
   
       func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
           session = NFCNDEFReaderSession(delegate: self, queue: nil, invalidateAfterFirstRead: false)
           self.session?.begin()
           return true
       }
   
       func readerSession(_ session: NFCNDEFReaderSession, didInvalidateWithError error: Error) {
           print(error)
       }
   
       func readerSession(_ session: NFCNDEFReaderSession, didDetectNDEFs messages: [NFCNDEFMessage]) {
           print(messages)
       }
   
   }
   

   }