nfc_hce_reader

nfc_hce_reader is Flutter plugin for reading NDEF messages on Android and iOS phones. Currently it reads messages from Android phones emulating tags via HCE. This plugin was inspired by this plugin, by this and this repos.

Usage

StreamSubscription<String> subscription = NfcHceReader.readNFCStream()
        .listen((tag) {
      setState(() {
        _message = tag;
        _stream?.cancel();
      });
    },
        onDone: () {
          setState(() {
            _stream = null;
          });
        },
        onError: (e) {
          setState(() {
            _stream = null;
          });
        });
    setState(() {
      _stream = subscription;
    });

Example

class MyApp extends StatefulWidget {
  @override
  _MyAppState createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  String _message = 'none';
  StreamSubscription<String> _stream;

  @override
  void initState() {
    super.initState();
    initPlatformState();
  }

  Future<void> initPlatformState() async {
    bool isInitialized;
    try {
      isInitialized = await NfcHceReader.initializeNFCReading();
      _readNFC(context);
    } on PlatformException {

    }

    if (!mounted) return;


  }

  void _readNFC(BuildContext context) {

    StreamSubscription<String> subscription = NfcHceReader.readNFCStream()
        .listen((tag) {
      setState(() {
        _message = tag;
        _stream?.cancel();
      });
    },
        onDone: () {
          setState(() {
            _stream = null;
          });
        },
        onError: (e) {
          setState(() {
            _stream = null;
          });
        });
    setState(() {
      _stream = subscription;
    });
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: const Text('Plugin example app'),
        ),
        body: Center(
          child: Text('Running on: $_message\n'),
        ),
      ),
    );
  }
}

Installation

Add nfc_hce_reader to your pubspec.yaml

dependencies:
  nfc_hce_reader: ^0.0.1