How to compare three Color in SwiftUI

Question

I have three Colors and I want to compare them. Should I make Color conform to Equatable protocol?

Code :

if Color.red == Color.green == Color.blue  {
   // do something
}

I don't see much sense in that snapshot, would you provide more context? — Asperi, Jul 02 '20 at 13:53
You can't ([without a hack](https://stackoverflow.com/a/58531033/968155)) extract RGB values from a `Color` in order to compare, like you could with `UIColor`. I would also say, that if you feel like you need to do it, you might have a bigger design problem — New Dev, Jul 02 '20 at 14:10
I dont have design problem I have game where I need to compare color of cards — sriram hegde, Jul 02 '20 at 14:11
If you're designing for swiftui, you should be comparing the data from which the `Color` is instantiated - not the `Color` instance itself — New Dev, Jul 02 '20 at 14:12
Ok thanks so Should I use enum with Color with case red , green, blue in model? — sriram hegde, Jul 02 '20 at 14:13
Depends on what your needs are. Your data could also be the rgb components, but if you just have 3 types of colors, an enum could work too — New Dev, Jul 02 '20 at 14:15

score 0 · Accepted Answer · answered Jul 02 '20 at 14:06

I really dont undestand what you want to achieve but you can compare them like

        let colorr = UIColor(red: 122/255, green: 100/255, blue: 180/255, alpha: 1.0)
        let rgbColorr = colorr.cgColor
        let rgbColorrs = rgbColorr.components

This rgbColorrs prints and array like [0.47843137254901963, 0.39215686274509803, 0.7058823529411765, 1.0] its like [red,green,blue,alpha]

if rgbColorrs[0] == rgbColors[1] == rgbColors[2]{
  //....
}

Or if you want to compare equality

 if UIColor.red.isEqual(UIColor.green.isEqual(UIColor.blue)){
        ...
    }

will this work for Color also and not just UIColor? – sriram hegde Jul 02 '20 at 14:08 — sriram hegde, Jul 02 '20 at 14:08

How to compare three Color in SwiftUI

1 Answers1