Provides a shimmer animation for labels.

UIView+Shimmer.swift

//
//  UIView+Shimmer.swift
//
//  Created by Romanov, Radu on 6/12/19.
//

import Foundation

extension UIView {
    func startShimmerAnimation() {
        let gradientLayer = CALayer(layer: layer)
        gradientLayer.backgroundColor = UIColor.white.cgColor
        gradientLayer.frame = CGRect(x: 0, y: 0, width: bounds.width / 3, height: bounds.height)
        gradientLayer.opacity = 0.18
        layer.addSublayer(gradientLayer)

        let animation = CABasicAnimation(keyPath: "transform.translation.x")
        animation.duration = 1.0
        animation.fromValue = -frame.size.width
        animation.toValue = frame.size.width
        animation.repeatCount = .infinity
        gradientLayer.add(animation, forKey: "")
        let color = JPNewThemeManager.shared()?.createColor("secondaryButtonColor")
        subviews.forEach({ $0.cornerRadius = 5; $0.backgroundColor = color })
    }
}