Using @AppStorage with SwiftUI Colors and some NSKeyedArchiver Magic

Conforming to RawRepresentable using a NSKeyedArchiver

Zane Carter
Jan 24 · 5 min read
Photo by Yousef Espanioly on Unsplash

Converting to an Integer

let red = Int(coreImageColor.red * 255 + 0.5)
let green = Int(coreImageColor.green * 255 + 0.5)
let blue = Int(coreImageColor.blue * 255 + 0.5)
return (red << 16) | (green << 8) | blue

Converting back to a Color

let red = Double((rawValue & 0xFF0000) >> 16) / 0xFF
let green = Double((rawValue & 0x00FF00) >> 8) / 0xFF
let blue = Double(rawValue & 0x0000FF) / 0xFF
self = Color(red: red, green: green, blue: blue)

What happened when I ran the app?

What’s the difference?

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Zane Carter

Written by

I make apps for the AppStore. Currently working on an app that makes gardening easier. Twitter: @iamzanecarter

Geek Culture

A new tech publication by Start it up (https://medium.com/swlh).

Zane Carter

Written by

I make apps for the AppStore. Currently working on an app that makes gardening easier. Twitter: @iamzanecarter

Geek Culture

A new tech publication by Start it up (https://medium.com/swlh).

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