If you want to make changes in variables of any file just make sure they match each of the other files including qr.gs and MainActivity.java. It is made on API 25. If you need any help regarding this ...

Contribute to AbrarJahin/Android-Barcode_And_Qr_Scanner development by creating ... we'll use the ZXing (Zebra Crossing) library to carry out barcode scanning within an Android app. We'll call on the ...