NFC读取鸿蒙示例代码

if (technology[i] === tag.NFC_A && !isNfcATag) {
  isNfcATag = true;
  hilog.debug(0x0000, 'TestTag', '[ReadTagTest-Demo] find NFC_A and start read');
  await new BasicTagTest(tagInfo).doNfcATagTest();
  hilog.info(0x0000, 'TestTag', '[ReadTagTest-Demo] find NFC_A and end read');
}
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async doNfcVTagTest() {
  let nfcV: tag.NfcVTag = tag.getNfcV(this.tagInfo);
  if (nfcV === null || nfcV === undefined) {
    hilog.error(0x0000, 'TestTag',"[ReadTagTest-Demo] doNfcVTagTest nfcV is null");
    return;
  }  GlobalContext.getContext().setTextShow('\n\n### NfC_V Tag detailed protocol information:\n\n')
  let responseFlags: number = nfcV.getResponseFlags();
  hilog.debug(0x0000, 'TestTag',"[ReadTagTest-Demo] doNfcVTagTest nfcV responseFlags= " + responseFlags);
  GlobalContext.getContext().setTextShow('\t\t' + 'responseFlag: ' + responseFlags + '\n')
  let dsfId: number = nfcV.getDsfId();
  hilog.debug(0x0000, 'TestTag',"[ReadTagTest-Demo] doNfcVTagTest nfcV dsfId= " + dsfId);
  GlobalContext.getContext().setTextShow('\t\t' + 'dsfId: ' + dsfId + '\n');
  let maxSendLength: number = nfcV.getMaxSendLength();
  hilog.debug(0x0000, 'TestTag',"[ReadTagTest-Demo] doNfcVTagTest nfcV maxSendLength= " + maxSendLength);
  GlobalContext.getContext().setTextShow('\t\tmaxSendLength = ' + maxSendLength + ' bytes\n')
}
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async doMifareClassicTagTest(){...}//MIFARE Classic技术
async doMifareUlTagTest(){...}//MIFARE_ULTRALIGHT
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async doNdefTagTest(){...}//NDEF技术
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