How can I use UIColorFromRGB in Swift?

Question

In Objective-C, we use this code to set RGB color codes for views:

#define UIColorFromRGB(rgbValue)        
[UIColor colorWithRed:((float)((rgbValue & 0x         


        

Answer 1

I can see its already been answered but still hope one liner will help in better way.

import UIKit

let requiredColor = UIColor(red: CGFloat((rgbValue & 0xFF0000) >> 16)/255, 
                            green: CGFloat((rgbValue & 0x00FF00) >> 8)/255, 
                            blue: CGFloat(rgbValue & 0x0000FF)/255, alpha :1)

Updated: :Changes done as per example explained by Author of question to provide hex values

Answer 2

Nate Cook's answer is absolutely correct. Just for greater flexibility, I keep the following functions in my pack:

func getUIColorFromRGBThreeIntegers(red: Int, green: Int, blue: Int) -> UIColor {
    return UIColor(red: CGFloat(Float(red) / 255.0),
        green: CGFloat(Float(green) / 255.0),
        blue: CGFloat(Float(blue) / 255.0),
        alpha: CGFloat(1.0))
}

func getUIColorFromRGBHexValue(value: Int) -> UIColor {
    return getUIColorFromRGBThreeIntegers(red: (value & 0xFF0000) >> 16,
        green: (value & 0x00FF00) >> 8,
        blue: value & 0x0000FF)
}

func getUIColorFromRGBString(value: String) -> UIColor {
    let str = value.lowercased().replacingOccurrences(of: "#", with: "").
        replacingOccurrences(of: "0x", with: "");
        return getUIColorFromRGBHexValue(value: Int(str, radix: 16)!);
}

And this is how I use them:

// All three of them are identical:
let myColor1 = getUIColorFromRGBHexValue(value: 0xd5a637)
let myColor2 = getUIColorFromRGBString(value: "#D5A637")
let myColor3 = getUIColorFromRGBThreeIntegers(red: 213, green: 166, blue: 55)

Hope this will help. Everything is tested with Swift 3/Xcode 8.