mrustaa
71 lines
2.0 KiB
Swift
71 lines
2.0 KiB
Swift
//
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// PulseAnimation.swift
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// ButtonLayersClickStyle
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//
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// Created by Рустам Мотыгуллин on 09.03.2022.
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//
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import UIKit
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class PulseAnimation: CALayer {
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var animationGroup = CAAnimationGroup()
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var animationDuration: TimeInterval = 1.5
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var radius: CGFloat = 200
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var numebrOfPulse: Float = Float.infinity
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override init(layer: Any) {
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super.init(layer: layer)
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}
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required init?(coder aDecoder: NSCoder) {
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fatalError("init(coder:) has not been implemented")
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}
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init(numberOfPulse: Float = Float.infinity, radius: CGFloat, postion: CGPoint){
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super.init()
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self.backgroundColor = UIColor.black.cgColor
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self.contentsScale = UIScreen.main.scale
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self.opacity = 0
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self.radius = radius
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self.numebrOfPulse = numberOfPulse
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self.position = postion
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self.bounds = CGRect(x: 0, y: 0, width: radius*2, height: radius*2)
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self.cornerRadius = radius
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DispatchQueue.global(qos: .default).async {
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self.setupAnimationGroup()
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DispatchQueue.main.async {
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self.add(self.animationGroup, forKey: "pulse")
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}
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}
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}
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func scaleAnimation() -> CABasicAnimation {
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let scaleAnimaton = CABasicAnimation(keyPath: "transform.scale.xy")
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scaleAnimaton.fromValue = NSNumber(value: 0)
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scaleAnimaton.toValue = NSNumber(value: 1)
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scaleAnimaton.duration = animationDuration
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return scaleAnimaton
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}
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func createOpacityAnimation() -> CAKeyframeAnimation {
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let opacityAnimiation = CAKeyframeAnimation(keyPath: "opacity")
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opacityAnimiation.duration = animationDuration
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opacityAnimiation.values = [0.4,0.8,0]
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opacityAnimiation.keyTimes = [0,0.3,1]
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return opacityAnimiation
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}
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func setupAnimationGroup() {
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self.animationGroup.duration = animationDuration
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self.animationGroup.repeatCount = numebrOfPulse
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let defaultCurve = CAMediaTimingFunction(name: CAMediaTimingFunctionName.default)
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self.animationGroup.timingFunction = defaultCurve
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self.animationGroup.animations = [scaleAnimation(),createOpacityAnimation()]
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}
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}
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