Shine Effect

DWAnimator.swift

case .shine:
    attributedString.addAttribute(.foregroundColor, value: label.textColor.withAlphaComponent(0), range: NSRange(location: 0, length: attributedString.length))
    for index in 0..<attributedString.length {
        delayArray.append(TimeInterval(arc4random_uniform(UInt32(duration) / 2 * 100) / 100))
        let remain = duration - Double(delayArray[index])
        durationArray.append(TimeInterval(arc4random_uniform(UInt32(remain) * 100) / 100))
    }