Button Border with Transparent Background in Swift

Question

How can I make a UIButton border to look alike in the below image (the \"Getting Started\") button with a transparent background?

How should I achieve this

Answer 1

Setting the backgroundColor to clearColor makes the button transparent.
Try the code below for example. You can configure and vary the borderAlpha,cornerRadius and colours as your want.

let borderAlpha : CGFloat = 0.7
let cornerRadius : CGFloat = 5.0

button.frame = CGRectMake(100, 100, 200, 40)
button.setTitle("Get Started", forState: UIControlState.Normal)
button.setTitleColor(UIColor.whiteColor(), forState: UIControlState.Normal)
button.backgroundColor = UIColor.clearColor()
button.layer.borderWidth = 1.0
button.layer.borderColor = UIColor(white: 1.0, alpha: borderAlpha).CGColor
button.layer.cornerRadius = cornerRadius