Random numbers - CGFloat

Question

Is there any idea or better approach do it more nice, elegant way ?

extension UIColor {
    static var randomColor: UIColor {
        .init(
            red: CGFloat(Float.random(in: 0 ... 1.0)),
            green: CGFloat(Float.random(in: 0 ... 1.0)),
            blue: CGFloat(Float.random(in: 0 ... 1.0)),
            alpha: 1.0
        )
    }
}

Answer 1

Rather than …

CGFloat(Float.random(in: 0 ... 1.0))

… you can use:

CGFloat.random(in: 0...1)

Or, in this context, you can let the compiler infer the type:

extension UIColor {
    static var randomColor: UIColor {
        .init(
            red: .random(in: 0...1),
            green: .random(in: 0...1),
            blue: .random(in: 0...1),
            alpha: 1
        )
    }
}

Answer 2

Randomize color hue

If you want random red, green, and blue components for your random color, go with @Rob's approach. If you want a randomly selected bright saturated color, randomize the hue.

extension UIColor {
    static var randomHue: UIColor {
        .init(hue: .random(in: 0...1),
              saturation: 1, brightness: 1, alpha: 1)
    }
    static var randomRGB: UIColor {
        .init(red: .random(in: 0...1),
              green: .random(in: 0...1),
              blue: .random(in: 0...1),
              alpha: 1)
    }
}

It really depends what mean by "it" in the text describing what you want. Random components tend to yield dull colors.