This is an example implementation of a pyzbar-based one-dimensional barcodes and QR codes scanner inspired by kivy/plyer#248 and https://www.bountysource.com/issues/39871127-barcode-and-qr-scanner.
Implemented and tested on Raspberry Pi 4, Kivy v1.11.1, pyzbar v0.1.8.
Kivy: https://github.com/kivy/kivy pyzbar: https://github.com/NaturalHistoryMuseum/pyzbar