CODEWITHSUNDEEP
iosiphoneswiftios8
Justin Rose
Justin Rose

Reputation: 1185

How to programmatically use hex colors to change view bg?

view.backgroundColor = UIColor.brownColor()

changes the background but it's limited to few colors, is there a way to use hex color codes?

Upvotes: 0

Views: 4602

Answers (2)

user3703910
user3703910

Reputation: 644

use extensions 

    extension UIColor
    {
        class func myGreenColor() -> UIColor
        {
            return UIColor(red: 0.145, green: 0.608, blue: 0.141, alpha: 1.0)/*#259b24*/
        }
     }

this web converts hex to UIColor is objective-c , it should be easy for you to turn objective-c code into swift :P :D

Upvotes: 1

JeffN
JeffN

Reputation: 1605

There isn't a built in hex converter, but the one here works well for swift. Also has RGB converter if you prefer that.

How to use hex colour values in Swift, iOS

Code from accepted answer linked above:

extension UIColor {
   convenience init(red: Int, green: Int, blue: Int) {
       assert(red >= 0 && red <= 255, "Invalid red component")
       assert(green >= 0 && green <= 255, "Invalid green component")
       assert(blue >= 0 && blue <= 255, "Invalid blue component")

       self.init(red: CGFloat(red) / 255.0, green: CGFloat(green) / 255.0, blue: CGFloat(blue) / 255.0, alpha: 1.0)
   }

   convenience init(netHex:Int) {
       self.init(red:(netHex >> 16) & 0xff, green:(netHex >> 8) & 0xff, blue:netHex & 0xff)
   }
}

Usage:

var color = UIColor(red: 0xFF, blue: 0xFF, green: 0xFF)
var color2 = UIColor(netHex:0xFFFFFF)

Upvotes: 1

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