QR/Barcode Scanner

You can scan anything quickly by using the barcode scanner icon from your status bar. (Notification settings bar)
Add the widget to your Quick settings bar to quickly scan anything.
Your scan history is stored in the app for you to access later.

And the best part - No Ads/promotions.
its completely open source and free to use.

Please check out my github (https://github.com/KiranShny/QR-BarcodeScanner) and give me some feedback.