TSLiveWallpaper/TSLiveWallpaper/Common/Ex/UIView+Ex.swift

//
//  UIView+Ex.swift
//  TSLiveWallpaper
//
//  Created by 100Years on 2025/7/3.
//

extension UIView {
    func addRealisticFlashEffect(completion: (() -> Void)? = nil) {
        // 创建闪光层
        let flashLayer = CALayer()
        flashLayer.frame = self.bounds
        flashLayer.backgroundColor = UIColor.white.cgColor
        flashLayer.opacity = 0
        self.layer.addSublayer(flashLayer)
        
        // 创建动画组
        let animationGroup = CAAnimationGroup()
        animationGroup.duration = 0.3
        animationGroup.timingFunction = CAMediaTimingFunction(name: .easeOut)
        
        // 透明度动画
        let opacityAnimation = CABasicAnimation(keyPath: "opacity")
        opacityAnimation.fromValue = 0
        opacityAnimation.toValue = 0.8
        opacityAnimation.duration = 0.1
        opacityAnimation.fillMode = .forwards
        
        // 淡出动画
        let fadeOutAnimation = CABasicAnimation(keyPath: "opacity")
        fadeOutAnimation.fromValue = 0.8
        fadeOutAnimation.toValue = 0
        fadeOutAnimation.beginTime = 0.1
        fadeOutAnimation.duration = 0.2
        
        animationGroup.animations = [opacityAnimation, fadeOutAnimation]
        
        CATransaction.begin()
        CATransaction.setCompletionBlock {
            flashLayer.removeFromSuperlayer()
            completion?()
        }
        flashLayer.add(animationGroup, forKey: "flashAnimation")
        CATransaction.commit()
    }
}