How to Make a QR Code Reader Scanner App in Xcode 8 (Swift 3 in Xcode)

Rafael here, and I'm going to show you TODAY HOW TO MAKE A QR CODE SCANNER!

[xxRafaelProductions]

For 5:35, in Swift 4 and above, the line is now

let captureDevice = AVCaptureDevice.default(for: .video)!

[paulafrancis]

Got the following error: Comparing non-optional value of type '[AVMetadataObject]' to nil always returns true.

When I entered: if metadataObjects != nil && metadataObjects.count != 0

[str]

One of your best programming videos ever, fucking amazing

[korialkorial]

Line at 5:35 don't work in swift 4

[xxRafaelProductions]

I've made THREE games and they're all in the app store! CHECK THEM OUT!

[gregw.f.r]

Just give us the code so we can copy paste

[rolanddewnath]

You created func captureOutput but did not make reference to it. How did you get your demo to work?

[yanashetty]

I have changed copy button to confirm, So how can I close scanner if once i click confirm button and call myFunction.. please help!

[I_Am_Jos_A]

well too difficult for my blood I can follow but I can't do by myself cause half the stuff on here I don't know or understand I understand variables, functions, classes etc. but none of the meta data stuff