startBarcodeScanner static method

Future<ResultWrapper<BarcodeScannerUiResult>> startBarcodeScanner(
  1. MethodChannel channel,
  2. BarcodeScannerScreenConfiguration config
)

Implementation

static Future<ResultWrapper<BarcodeScannerUiResult>> startBarcodeScanner(
  MethodChannel channel,
  BarcodeScannerScreenConfiguration config,
) async {
  try {
    final parameters = config.toJson();

    final formatter = isUsecaseSupportBarcodeFormatter(config)
        ? getBarcodeFormatter(config.useCase)
        : null;

    if (formatter != null) {
      _initBarcodeFormatterHandler(formatter);
      _barcodeFormatterCallbackChannel.setMethodCallHandler(_handler);
      parameters['shouldUseBarcodeFormatter'] = true;
    }

    final result =
        await channel.invokeMethod('startBarcodeScanner', parameters);

    _handler = null;

    return ResultWrapper.fromJson(
      jsonDecode(result),
      fromJsonT: BarcodeScannerUiResult.fromJson,
    );
  } on PlatformException catch (e) {
    Logger.root.severe(e);
    return ResultWrapper.error(e.message ?? 'Unknown platform error');
  } catch (e) {
    return ResultWrapper.error(e.toString());
  }
}