In my application - there are four buttons named as follows:
Abov
Thanks for sharing. Here I'd like to share the solution on swift 2.0 for further reference on this issue. (to conform the UIRectCorner's protocol)
let mp = UIBezierPath(roundedRect: cell.bounds, byRoundingCorners: [.bottomLeft, .TopLeft], cornerRadii: CGSize(width: 10, height: 10))
let ml = CAShapeLayer()
ml.frame = self.bounds
ml.path = mp.CGPath
self.layer.mask = ml