在cell中
// 播放器动画效果
private var replicatorLayer:ReplicatorLayer = {
let layer = ReplicatorLayer.init(frame: CGRect(x: 0, y: 0, 2, height: 15))
return layer
}()
func setUpUI(){
self.replicatorLayer.snp.makeConstraints { (make) in
make.left.equalToSuperview().offset(10)
make.bottom.equalToSuperview().offset(-10)
make.width.equalTo(20)
make.height.equalTo(10)
}
}
左下方
import UIKit
class ReplicatorLayer: UIView {
override init(frame: CGRect) {
super.init(frame: frame)
createLayer()
}
required init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
}
func createLayer(){
let layer = CALayer.init()
layer.frame = self.bounds
layer.backgroundColor = UIColor.white.cgColor
layer.anchorPoint = CGPoint.init(x: 0.5, y: 0.5)
layer.add(self.scaleYAnimation(), forKey: "scaleAnimation")
let replicatorLayer = CAReplicatorLayer.init()
replicatorLayer.frame = self.bounds
//设置复制层里面包含子层的个数
replicatorLayer.instanceCount = 4
//设置子层相对于前一个层的偏移量
replicatorLayer.instanceTransform = CATransform3DMakeTranslation(5, 0, 0)
//设置子层相对于前一个层的延迟时间
replicatorLayer.instanceDelay = 0.2
//设置层的颜色，(前提是要设置层的背景颜色，如果没有设置背景颜色，默认是透明的，再设置这个属性不会有效果。
replicatorLayer.instanceColor = DominantColor.cgColor
//需要把子层加入到复制层中，复制层按照前面设置的参数自动复制
replicatorLayer.addSublayer(layer)
//将复制层加入view的层里面进行显示
self.layer.addSublayer(replicatorLayer)
}
}
extension ReplicatorLayer {
fileprivate func scaleYAnimation() -> CABasicAnimation{
let anim = CABasicAnimation.init(keyPath: "transform.scale.y")
anim.toValue = 0.1
anim.duration = 0.4
anim.autoreverses = true
anim.repeatCount = MAXFLOAT
anim.isRemovedOnCompletion = false
return anim
}
}