I am looking to add a qr code scanner into my prototype, any way i can do that?
it's not possible to include a QR code reader in the prototype, but you can simulate the process with some screenshots.
Another (although currently somewhat clunky) alternative is to set up a web page in the prototype app pointed to http://webqr.com - this site uses HTML5 and a webcam or mobile camera to interpret QR codes within the web page, so it can be included in the prototype.
There are undoubtedly compatibility issues, but it worked out of the box for me using Chrome as the browser on both the PC and my S3 Android device, and within a prototype.
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