printBarcode method
Implementation
@override
Future<String?> printBarcode(String contents, int desiredWidth, int desiredHeight, String barcodeFormat) async {
final Map<String, dynamic> args = <String, dynamic>{
'contents': contents,
'desiredWidth': desiredWidth,
'desiredHeight': desiredHeight,
'barcodeFormat': barcodeFormat,
};
return await methodChannel.invokeMethod<String>('PrintBarcode', args);
}