Recently I needed a feature that explores the use of a QR Code Scanner in my C2 app. I have searched for similar plugins, but the majority of them could decode them from sprites or saved images (which is a pain in iOS: that is my case ). I also have found the `barcodescanner` plugin, but I had some difficulties customizing it...
So, I have implemented a C2 plugin that is based on the `gizscanqrcode` Cordova plugin. I have made a copy of it in my GitHub just for convenience.
The C2 plugin can be found in https://github.com/rafaelfl/simpleqrscanner. A capx example is also provided.
I hope this can be useful for you.