How to animate the frame of an layer with CABasicAnimation?

Question

I guess I have to convert the CGRect into an object to pass it to fromValue?

This is how I try it, but it doesn\'t work:

CABasicAnimation *frameAnima         


        

Answer 1

Here's a simple, fully working, example which may help someone.

Just call .slideUp() on the class and it will slide up.

class Slidey: YourViewClass {

    func slideUp() {

        print("\n\n SLIDE")

        let FF = layer.position
        var TT = FF
        TT.y -= 100
        print(FF)
        print(TT)

        CATransaction.begin()
        CATransaction.setDisableActions(true)

        CATransaction.setCompletionBlock{ [weak self] in

            print("DONE")
        }

        let a = CABasicAnimation(keyPath: "position")

        a.timingFunction = CAMediaTimingFunction(name: kCAMediaTimingFunctionEaseOut)

        a.isCumulative = false
        a.autoreverses = false
        a.isRemovedOnCompletion = true
        a.repeatCount = 0
        a.fromValue = FF
        a.toValue = TT
        a.duration = 0.70
        layer.add(a, forKey: nil)

        CATransaction.commit()
    }
}