iPad Mac i OS 개발 꿀팁과 삽질

extension UIColor {

    convenience init(hex: String) {

        let scanner = Scanner(string: hex)

        scanner.scanLocation = 0

        var rgbValue: UInt64 = 0        

        scanner.scanHexInt64(&rgbValue)

        let r = (rgbValue & 0xff0000) >> 16

        let g = (rgbValue & 0xff00) >> 8

        let b = rgbValue & 0xff

        self.init(

            red: CGFloat(r) / 0xff,

            green: CGFloat(g) / 0xff,

            blue: CGFloat(b) / 0xff, alpha: 1

        )

    }

}

let color = UIColor(hex: "ff0000")