Swift Extension - UIColor(랜덤 색상)

코드

extension CGFloat {
    static var random: CGFloat {
           return CGFloat(arc4random()) / CGFloat(UInt32.max)
    }
}
extension UIColor {
    static var random: UIColor {
           return UIColor(red: .random, green: .random, blue: .random, alpha: 1.0)
    }
}

사용방법

view.backgroundColor = UIColor.random