startBarcodeScannerInternal static method

Future<BarcodeScanningResult> startBarcodeScannerInternal(MethodChannel channel, BarcodeScannerConfiguration config)

Starts the Ready-to-Use Barcode Scanner UI as full-screen modal UI dialog. The Barcode Scanner is able to recognize 1D- and 2D-barcodes (QR codes, etc).

Implementation

static Future<BarcodeScanningResult> startBarcodeScannerInternal(
    MethodChannel channel, BarcodeScannerConfiguration config) async {
  try {
    Logger.root.log(Level.INFO, "BARCODE init formats");
    if (config.barcodeFormats == null) {
      config.barcodeFormats = PredefinedBarcodes.allBarcodeTypes();
    } else if (config.barcodeFormats!.isEmpty) {
      config.barcodeFormats = PredefinedBarcodes.allBarcodeTypes();
    }
    Logger.root.log(Level.INFO, "BARCODE config to JSON");

    var updatedParameters = config.toJson();
    const defaultJsonName = "BarcodeScreen";
    Logger.root.log(Level.INFO, "BARCODE update default JSON");
    var configuration = await applyParametersOnDefaultJson(
        defaultJsonName, updatedParameters);
    Logger.root.log(Level.INFO, "BARCODE run scanner");
    var result = await invoke(channel, 'startBarcodeScanner', configuration);
    Logger.root.log(Level.INFO, "BARCODE scanner canceled");

    if (wasCanceled(result)) {
      return BarcodeScanningResult.canceled();
    }
    return BarcodeScanningResult.fromJson(jsonDecode(result));
  } catch (e) {
    Logger.root.severe(e);
    return BarcodeScanningResult.error(e.toString());
  }
}