我正在使用碎片开发一个nfc应用程序。fragment类不允许我使用onnewintent（）使应用程序扫描nfc标记。是否有替换功能或解决此问题的方法。下面是我在fragment类中使用的方法。我有两个片段负责不同的nfc功能。我需要能够单独使用片段生命周期管理nfc功能，而不是将数据传递给片段活动。

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    if (getArguments() != null) {
        mParam1 = getArguments().getString(ARG_PARAM1);
        mParam2 = getArguments().getString(ARG_PARAM2);
    }
    _nfcAdapter = NfcAdapter.getDefaultAdapter(getActivity().getApplicationContext());
    CheckNfcStatus();

    NfcManager manager = (NfcManager) getActivity().getApplicationContext().getSystemService(Context.NFC_SERVICE);
    NfcAdapter adapter = manager.getDefaultAdapter();
}

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    // Inflate the layout for this fragment
    View v = inflater.inflate(R.layout.fragment_heart_beat, container, false);

    heartbearSearch = v.findViewById(R.id.heartBeat_Search);
    heartbearSuccess = v.findViewById(R.id.heartBeat_Success);
    heartbearSearch.setVisibility(View.VISIBLE);
    heartbearSuccess.setVisibility(View.GONE);

    return inflater.inflate(R.layout.fragment_heart_beat, container, false);
}

protected String TagUid;

@Override
public void onResume() {
    //CheckNfcStatus();
    AlertDialog alert = new AlertDialog.Builder(getActivity().getApplicationContext()).create();
    super.onResume();
    if (_nfcAdapter == null) {                           // checks if NFC is available on the device
        alert.setMessage("NFC is not supported on this device.");
        alert.setTitle("NFC Unavailable");
        alert.show();
    }
    else {
        IntentFilter tagDetected = new IntentFilter(NfcAdapter.ACTION_NDEF_DISCOVERED);

        Intent intent = new Intent(getActivity().getApplicationContext(), getClass());
        intent.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);

        final PendingIntent pendingIntent = PendingIntent.getActivity(getActivity().getApplicationContext(), 0, intent, 0);

        IntentFilter[] filters = new IntentFilter[]{
                new IntentFilter(NfcAdapter.ACTION_TECH_DISCOVERED),};
        String[][] techList = new String[][]{
                new String[]{NfcA.class.getName()},
                new String[]{NfcB.class.getName()},
                new String[]{NfcF.class.getName()},
                new String[]{NfcV.class.getName()},
                new String[]{NfcBarcode.class.getName()
                },
                // Filter for nfc tag discovery
        };
        _nfcAdapter.enableForegroundDispatch(getActivity(), pendingIntent, filters, techList);
    }
}

@Override
public void onPause() {
    super.onPause();
    _nfcAdapter.disableForegroundDispatch(getActivity());
}

@Override
public void onNewIntent(Intent intent) {
    super.onNewIntent(intent);
    HBClass hb = new HBClass();

    if (intent.getAction() == NfcAdapter.ACTION_TECH_DISCOVERED) {
        Boolean res = true;

        if (res) {
            Tag tag = intent.getParcelableExtra(NfcAdapter.EXTRA_TAG);
            if (tag != null) {
                if (hb.ReadTagSync(tag)) {
                    Context context = getContext();
                    mheartImage.startAnimation(mHeartAnimation);

                    CharSequence toastMessage = "Transmission successful";
                    int duration = Toast.LENGTH_SHORT;
                    Toast.makeText(context, toastMessage, duration).show();

                    textView.setText("Scan a new Tag");
                }
            }
        }
    }
}

public void SendRWBool(boolean someval) {

    writeFlag = true;
    //WriteNFC(tg);
}

private void CheckNfcStatus() {
    Context context = getActivity().getApplicationContext();
    int duration = Toast.LENGTH_LONG;
    if (_nfcAdapter == null) {
        CharSequence toastMessage = "No NFC available for the device!";
        Toast.makeText(context, toastMessage, duration).show();
        // NFC is not available for device
    } else if (!_nfcAdapter.isEnabled()) {
        CharSequence toastMessage = "Please Enable NFC!";
        Toast.makeText(context, toastMessage, duration).show();
        // NFC is available for device but not enabled
    } else {
        CharSequence toastMessage = "NFC enabled!";
        Toast.makeText(context, toastMessage, duration).show();
        // NFC is enabled
    }
}