handleMethodCall method

Future handleMethodCall(MethodCall call)

Handles method calls over the MethodChannel of this plugin. Note: Check the "federated" architecture for a new way of doing this: https://flutter.dev/go/federated-plugins

Implementation

Future<dynamic> handleMethodCall(MethodCall call) async {
  switch (call.method) {
    case 'getNFCAvailability':
      if (hasProperty(html.window.navigator, 'usb')) {
        return 'available';
      } else {
        return 'not_supported';
      }

    case 'poll':
      int timeout = call.arguments["timeout"];
      bool probe = call.arguments["probeWebUSBMagic"];
      return await WebUSB.poll(timeout, probe);

    case 'transceive':
      var data = call.arguments["data"];
      if (!(data is Uint8List || data is String)) {
        throw PlatformException(
            code: "400",
            message:
                "Bad argument: data should be String or Uint8List, got $data");
      }
      // always pass hex string to [transceive]
      var encodedData = data;
      if (data is Uint8List) {
        encodedData = hex.encode(data);
      }
      var encodedResp = await WebUSB.transceive(encodedData);
      dynamic resp = encodedResp;
      // return type should be the same as [data]
      if (data is Uint8List) {
        resp = Uint8List.fromList(hex.decode(encodedResp));
      }
      return resp;

    case 'finish':
      bool closeWebUSB = call.arguments["closeWebUSB"];
      return await WebUSB.finish(closeWebUSB);

    default:
      throw PlatformException(
          code: "501",
          details:
              "flutter_nfc_kit for web does not support \"${call.method}\"");
  }
}