Use APKPure App
Get MEM PORTAL - Barcode Scan Libray old version APK for Android
바코드 스캔 라이브러리는 바코드 스캐닝을 도와줍니다.
Barcode Library app runs separately from core app so making it less dependent on mobile resources.
How to Use
Intent intent = new Intent("info.itroos.library.BarcodeScanning");
startActivityForResult(intent, 1);
App will return first barcode being scanned