iOS11 NFC 读卡Demo

iOS11 NFC 读卡Demo

注意，NFC开发现需要付费开发者才能使用

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0x01 准备工作

• 创建一个App ID,并勾选NFC Tag Reading
  

  

• 创建应用，并使用刚才创建的App ID

• 在plist文件中加入以下几行

NFCReaderUsageDescription
NFC Tag!

• 生成CardCollections.entitlements
  在Capabilities中打开Push Notifications然后关闭会生成一份工程名字.entitlements，内容填写如下：

    com.apple.developer.nfc.readersession.formats
    
        NDEF
    

然后前往Build Settings中设置Code Signing Entitlements的路径，务必保证路径正确

0x02 编写代码

import UIKit
import CoreNFC


class ViewController: UIViewController {
    
    
    var session: NFCNDEFReaderSession!
    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
        
        session = NFCNDEFReaderSession(delegate: self,
                                       queue: DispatchQueue(label: "queueName", attributes: .concurrent), invalidateAfterFirstRead: false)
        session.begin()
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }

}

extension ViewController: NFCNDEFReaderSessionDelegate {
    func readerSession(_ session: NFCNDEFReaderSession, didDetectNDEFs messages: [NFCNDEFMessage]) {
        for message in messages {
            for record in message.records {
                print(record.payload)
            }
        }
    }
    
    func readerSession(_ session: NFCNDEFReaderSession, didInvalidateWithError error: Error) {
        print("read error:\(error)")
    }
}