如何在swift中动画更新CAReplicatorLayer的位置？

Question

我需要将我的CAReplicatorLayer对象动画化为50像素以上。

我实现了将CAReplicatorLayer帧更新到50像素以上，但我没有通过动画实现。

这是我的代码。

 CATransaction.begin();
 CATransaction.setAnimationDuration(2.0)
 self.rippleLayer.position = self.imgLogo.center //rippleLayer is my CAReplicatorLayer object and self.imgLogo.center is like 50 pixels up for refernce.
 CATransaction.setDisableActions(true)
 CATransaction.commit();

Answer 1

我的代码证明您的代码没有问题。如果它崩溃了，肯定还有其他原因。

var rippleLayer: CAReplicatorLayer!
override func viewDidAppear(_ animated: Bool) {
    super.viewDidAppear(animated)
    rippleLayer = CAReplicatorLayer.init()
    rippleLayer.frame = CGRect.init(x: 0, y: 0, width: 100, height: 100)
    rippleLayer.backgroundColor = UIColor.red.cgColor
    self.view.layer.addSublayer(rippleLayer)
    Timer.scheduledTimer(withTimeInterval: 2.0, repeats: false) { _ in
        CATransaction.begin();
        CATransaction.setAnimationDuration(2.0)
        self.rippleLayer.position = self.view.center //rippleLayer is my CAReplicatorLayer object and self.imgLogo.center is like 50 pixels up for refernce.
        CATransaction.setDisableActions(true)
        CATransaction.commit();
    }
}