Qr code and barcode scanner. best qr code and barcode scanner ever. qr & barcode scanner / qr code reader is extremely easy to use; simply point to qr or barcode you want to scan and app will automatically detect and scan it.. An app having qr scanner uses the camera of your device to scan the code. scanner scans the image of qr code taken by the camera and decodes the information provided with the code. this tutorial explains, how to implement qr scanner using zxing library.. Home page
