How to implement QR Code to iPhone App in xCode

I'm trying to make an iPhone app in xCode for robotics. But I need to add a QR Code exporter, loader and editor because we can't use any wifi network or hotspot there. What program or software should we use to make and use a QR Code in our app and how do we add and program it?

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Seen this API?


https://developer.apple.com/reference/coreimage/ciqrcodefeature

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KMT
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You can also do QR code recognition via AVMetadataObject, which is nice because it’s integrated with the camera. WWDC 2013 Session 610 What’s New in Camera Capture has a good intro to this.

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