CoreAnimation resets to initial value after animation completes

Question

I'm rotating and moving an object but after it's finished animating it returns to its initial position. I've looked at other posts about this on here like: CABasicAnimation resets to initial value after animation completes but the answers given didn't work. The most popular answer:

cabasicanimation.fillMode = kCAFillModeForwards;
cabasicanimation.removedOnCompletion = NO;

didn't do anything. This is how the object is initialized:

class coreAnimatedNewView: CALayer {


  var animationGroup = CAAnimationGroup()
  var animationDuration: TimeInterval = 1.5


  override init(layer: Any) {
    super.init(layer: layer)


  }

  required init?(coder aDecoder: NSCoder) {
    super.init(coder: aDecoder)
  }


  init(frame: CGRect) {
    super.init()

    self.frame = frame


      DispatchQueue.main.async {
       self.add(self.createTranslationAnimation(), forKey: "shape")

    }
  }


  //Move Animation
  func createTranslationAnimation () -> CABasicAnimation {
    let moveAnimation = CABasicAnimation(keyPath: "transform.translation")
    moveAnimation.fromValue = NSValue(cgPoint:CGPoint(x: 10, y: 10))
    moveAnimation.toValue = NSValue(cgPoint:CGPoint(x: 120, y: 20))
    moveAnimation.duration = animationDuration

    return moveAnimation

 }
}

The setup is part of an animation group but I'm only showing the move function.

This is how it's setup in the viewcontroller:

class CoreAnimateViewController: UIViewController {


  //Remember to switch initial viewController on storyboard!!!
  override func viewWillAppear(_ animated: Bool) {
    super.viewWillAppear(true)

    addShape()

  }

  func addShape () {

    let shape = coreAnimatedNewView(frame: CGRect(x: 10, y: 10, width: 100, height: 100))
    self.view.layer.addSublayer(shape)


  }

}

Is there anyway to solve this issue?

Sorry, but can you clarify how the instance of `coreAnimatedNewView` is positioned initially; What I am trying to understand is if it is positioned by auto layout; if so then modifying it's frame directly won't work; you need to modify the constraints — Paulw11, May 08 '17 at 01:03
I updated the code, autolayout is not being used, its all done programatically — SwiftyJD, May 08 '17 at 01:05
I tried to make a new Swift project and replicate this behavior but there's an error on the line `self.setupAnimationGroup()` within the `coreAnimatedNewView`'s `init` function. Where is that being defined / what version of Swift are you using? — Pat Needham, May 08 '17 at 01:15
Sorry about that, its part of a larger animation group, I've updated the code to only use that one function, its in Swift 3 — SwiftyJD, May 08 '17 at 01:20

CoreAnimation resets to initial value after animation completes

0 Answers0