How do you create a semi-transparent background for a UIView?

Question

I am creating a UIView containing some text that partially covers a UIImageView. I want the user to be able to read the text and still maintain a perspective on the image undern

Answer 1

Swift 3+

white half transparent:

view.backgroundColor = UIColor(white: 1, alpha: 0.5)

or black half transparent:

        view.backgroundColor = UIColor(red: 0, green: 0, blue: 0, alpha: 0.5)