Add drop shadow to xib view in Swift - swift

Question

I have added a card view from a Xib file which when tapped it slides from bottom-up to display the view.
I have am trying to customised the view and a drop shadow to the view which is not working.
The cornerRadius works fine otherwise.
func setupCard() {
menuCardVC = MenuCardVC(nibName:"MenuCardVC", bundle:nil)
menuCardVC.view.layer.shadowOpacity = 0.50
menuCardVC.view.layer.shadowRadius = 12
menuCardVC.view.layer.shadowColor = UIColor.black.cgColor
menuCardVC.view.layer.shadowOffset = CGSize.zero
menuCardVC.view.layer.cornerRadius = 25
self.addChild(menuCardVC)
self.view.addSubview(menuCardVC.view)
menuCardVC.view.frame = CGRect(x: 0, y: self.view.frame.height - cardHandleAreaHeight, width: self.view.bounds.width, height: cardHeight)
menuCardVC.view.clipsToBounds = true
let tapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(VenueDetailsVC.handleCardTap(recognzier:)))
let panGestureRecognizer = UIPanGestureRecognizer(target: self, action: #selector(VenueDetailsVC.handleCardPan(recognizer:)))
menuCardVC.handleArea.addGestureRecognizer(tapGestureRecognizer)
menuCardVC.handleArea.addGestureRecognizer(panGestureRecognizer)
}//end setupCard

Answer 1

Remove the below line of code,
menuCardVC.view.clipsToBounds = true

Answer 2

Since your view hierarchy is simple you could use the following technique. Also, you don't need to use clipsToBounds.
let superview = UIView(frame: CGRect(x: 0, y: 0, width: 200, height: 200))
superview.backgroundColor = .white
let subview = UIView(frame: CGRect(x: 10, y: 10, width: 100, height: 100))
subview.backgroundColor = .red
// First provide the corner radius.
subview.layer.cornerRadius = 8
// Then provide the shadow parameters.
subview.layer.shadowOpacity = 1
// ...
// Do not clip to bounds since it will clip the shadow.
// ...
superview.addSubview(subview)