Couple of questions please - Logo Tint Color and Center Image

[waelsaad]

Couple of questions please - Logo Tint Color and Center Image

[waelsaad]

Hi @dagronf thank you so much for the response and correcting the code, its exactly what I was looking for and I'll be looking into the Bitmap. Kind Regards.

[dagronf]

Hi @waelsaad,

was wondering if there's a more concise or elegant way to achieve the same result.

If you're not targeting watchOS, you can (probably) just use the default QR code generator instead of specifying the external generator.

let d = QRCode.Document(generator: QRCodeGenerator_External())
d.errorCorrection = .high
d.utf8String = "https://www.swift.org"

becomes

let d = QRCode.Document(utf8String: "https://www.swift.org", errorCorrection, .high)

also how to use circle center (QRCode.LogoTemplate.CircleCenter)

let document: QRCode.Document = {
   let d = QRCode.Document(utf8String: "https://www.swift.org", errorCorrection, .high)
   d.logoTemplate = QRCode.LogoTemplate.CircleCenter(image: myImage, inset: 3)
   return d
}()

How can I change the tint color of the centered logo

Tinting images is not part of this library. I have another library called Bitmap which has the ability to tint an image

guard 
   let orig = CGImage.named("verified_user"),
   let tintedImage = try? Bitmap(orig)
      .tinting(with: CGColor(red: 0, green: 0, blue: 1, alpha: 1)
      .cgImage
else {
   // handle error
}

If you're not keen to add another library to your code, you can look through the Bitmap source code for tinting.

Hope this helps!

[dagronf]

Brilliant mate. Glad I can help.