Animate different corners in CAShapeLayer - swift

Question

I am using the following code:
let MainLayer : CAShapeLayer = {
let mainlayer = CAShapeLayer()
mainlayer.fillColor = UIColor.white.cgColor
mainlayer.shadowColor = UIColor.darkGray.cgColor
mainlayer.shadowOffset = CGSize(width: 3.0, height: 3.0)
mainlayer.shadowOpacity = 0.5
mainlayer.shadowRadius = 7
return mainlayer
}()
var LayerRect:CGRect!
var bezierPath:UIBezierPath!
let CellHeightMargin:CGFloat = 6.0
let CellWidthMargin:CGFloat = 15.0
override func viewDidLoad() {
super.viewDidLoad()
LayerRect = CGRect(x: self.bounds.origin.x, y: self.bounds.origin.y, width: UIScreen.main.bounds.width - CellWidthMargin * 2, height: self.bounds.height - CellHeightMargin * 2)
bezierPath = UIBezierPath(roundedRect: LayerRect, byRoundingCorners: [.bottomRight,.topRight], cornerRadii: CGSize(width: 5, height: 5))
MainLayer.path = bezierPath.cgPath
self.mainView.layer.insertSublayer(MainLayer, at: 0)
}
As you can see, byRoundingCorners is to bottom right and top right corners, now I want to replace it by the bottom left and bottom right with animation. How to do that?

Answer 1

By the following:
let ToStatusLayerPath = UIBezierPath(roundedRect: CellView.statusView.bounds, byRoundingCorners: [.bottomRight,.bottomLeft], cornerRadii: CGSize(width: 5, height: 5))
let animation = CABasicAnimation(keyPath: "path")
animation.toValue = ToStatusLayerPath.cgPath
animation.duration = 1.0;
animation.timingFunction = CAMediaTimingFunction(name: kCAMediaTimingFunctionEaseOut)
animation.fillMode = kCAFillModeForwards
animation.isRemovedOnCompletion = false
statusLayer.add(animation, forKey: nil)