Create QR Barcodes on Mac

Question

I'm creating an app for mac which needs to create QR barcodes as a part of the application.

I've found https://github.com/jverkoey/ObjQREncoder for iOS but couldn't to make it work on my Mac application.

Is there any libraries for generating QR barcodes in Objective-C on Mac?

score 5 · Answer 1 · answered May 16 '17 at 14:00

You can try use CIFilter to generate QRCode :

static func generateQRCode(from string: String) -> NSImage? {
    let data = string.data(using: String.Encoding.ascii)

    if let filter = CIFilter(name: "CIQRCodeGenerator") {
        filter.setValue(data, forKey: "inputMessage")
        let transform = CGAffineTransform(scaleX: 3, y: 3)

        if let output = filter.outputImage?.applying(transform) {
            let rep = NSCIImageRep(ciImage: output)
            let nsImage = NSImage(size: rep.size)
            nsImage.addRepresentation(rep)
            return nsImage
        }
    }
    return nil
}

Just to add, this works on OS X v10.9 and iOS 7 or later. – Mark Horgan Jun 13 '17 at 10:21 — Mark Horgan, Jun 13 '17 at 10:21
Thank you isaced! You saved me a mountain of time – mabeechen Sep 26 '20 at 20:08 — mabeechen, Sep 26 '20 at 20:08

score 3 · Accepted Answer · answered Apr 14 '13 at 17:53

3

The QR & bar code encoding and decoding library you're looking for is this (which I've used in a couple of my own projects):

http://github.com/TheLevelUp/ZXingObjC

It's a full Objective-C port of the ZXing image processing library. When you build it, it creates both iOS and MacOS targets (frameworks and libraries).

answered Apr 14 '13 at 17:53

Michael Dautermann

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I just tried it. works for every barcode types, but returns nil on QRcode! both result and error is empty. here's my code: – Shahin Apr 15 '13 at 19:22
Sounds like this is a different question. Why not create a new question and include your code? – Michael Dautermann Apr 15 '13 at 19:42
:) sure. Thanks, here's my question: http://stackoverflow.com/questions/16024161/creating-qr-barcodes-with-zxingobjc-on-mac – Shahin Apr 15 '13 at 20:28

Create QR Barcodes on Mac

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