discoverServices method

Future<void> discoverServices(String serviceType)

Start network service discovery for serviceType for an infinite amount of time (or until the app process is killed). Make sure to call stopDiscovery when you're done.

Implementation

Future<void> discoverServices(String serviceType) async {
  await _channel.invokeMethod('startDiscovery', {'serviceType': serviceType});

  _channel.setMethodCallHandler((MethodCall call) async {
    switch (call.method) {
      case 'onStartDiscoveryFailed':
        _streamController.addError(NsdError(
          errorCode: NsdErrorCode.startDiscoveryFailed,
        ));
        break;
      case 'onStopDiscoveryFailed':
        _streamController.addError(NsdError(
          errorCode: NsdErrorCode.stopDiscoveryFailed,
        ));
        break;
      case 'onResolveFailed':
        _streamController.addError(NsdError(
          errorCode: NsdErrorCode.onResolveFailed,
        ));
        break;
      case 'onDiscoveryStopped':
        _streamController.addError(NsdError(
          errorCode: NsdErrorCode.discoveryStopped,
        ));
        _channel.setMethodCallHandler(null);
        break;
      case 'onServiceResolved':
        final nsdServiceInfo = _parseArgs(call);
        _streamController.add(nsdServiceInfo);
        break;
      case 'onServiceLost':
      // TODO issue #28
        break;
      default:
        throw MissingPluginException();
    }
  });
}