How To Create A QR Code Generator In Xcode 8 (Swift 3)

In this video, we will be taking a look at how to create a QR code generator in Xcode 8, using Swift 3.

[victorbraca]

This is the best YouTube channel for Xcode turorials

[jlecampana]

Nice! Hey Mr. Sebastian, I was hoping you would show us how to prevent the QRCode image from becoming blurry, that's a common problem I've seen many times. Thanks for these tutorial, sir.

[drippy.mcflip]

I have been waiting for this video for months !!!! Thank you !! +1

[Hooghog]

Thanks so much, this and the scanner video was just what I needed! Best on youtube

[bykristopherson]

Great video Could you include in reply how to save to camera roll ?

[MarcosSuarezAyala]

Thank you, excellent short video and easy

[bryaneduard]

This is really interesting. There are some technical reserve words i don't know the use for. Like in the filter part, "for key: inputmessage" But 👍🏻 for this video! Pls. Publish more tutorial.

[kirtipandya]

Hi I all tutorials are awesome. Your channel is very useful..

how can we create QR code for Wifi or location etc.. It will great if you can make video on that. Thank you.

[abdouett]

Thanks for the work. Please, use guard or if blocks to handle nil objects.

[Daniel-szlq]

Will this ever duplicate an already made code? For example if I tried to create it for a social media platform and I scanned a code for someone's ID, could that potentially show the wrong / duplicated ID?

[pramitgupta]

Hello,
Can you tell us how to make an QRCode scanner in Swift

[xxRafaelProductions]

Everyone, if the QR code is displayed blurry or in a bad quality, try this in your button's action:

if let myString = textField.text {

//data is a constant
let data = myString.data(using: .ascii, allowLossyConversion: false)
let filter = CIFilter(name: "CIQRCodeGenerator")
filter?.setValue(data, forKey: "inputMessage")

let ciImage = filter?.outputImage

let transform = CGAffineTransform(scaleX: 10, y: 10)
let transformImage = ciImage?.applying(transform)

let image = UIImage(ciImage: transformImage!)
imageViewQR.image = image


saveButton.isEnabled = true

}

[mineomediadehd]

The qr code gets displayed in a very bad quality, how can I fix that?

[burakseyhan]

Hi, I use this code and I have an exception : unexpectedly found nil while unwrapping an Optional value"

if let myString = myTextField.text{
let data = myString.data(using: .ascii, allowLossyConversion: false)

let filter = CIFilter(name: "CIQRCodeGenerator")
filter?.setValue(data, forKey: "inputMessage")

let img = UIImage(ciImage: (filter?.outputImage)!) // error is here

myImageView.image = img
}

this is the code.

Why Can I Take an exception?

[alexanderpichler]

Does someone know how to fix the error when typing "ä, ö, ü" in the textfield and click the button?

[victorbraca]

When i test it, simulator loads but when i get to the part when a press the button in the simulator, it takes me back to Xcode and there is an error that says “thread 1:signal SIGBART”. Can anyone help me with this

[muhammadtanko]

Please can you explain snap chat qr codes

[Jan-]

Hello, I want to buy a MacBook for programming Apps. Would you recommend me the MacBook Air 13" (2017) with 128 GB?

[fusionx]

Why have you stoped making YouTube videos bro?

[Sami-rcfu]

Next video will be how to read QR Code.