swift - 高斯模糊

 

/*

case extraLight

case light

case dark

@available(iOS 10.0, *)

case regular

@available(iOS 10.0, *)

case prominent

*/

        //        初始化一个基于模糊效果的视觉效果视图
        let blur = UIBlurEffect(style: .dark)
        let blurView = UIVisualEffectView(effect: blur)
        blurView.frame = CGRect(x: 0, y: 0, width: JY_DEVICE_WIDTH, height: JY_DEVICE_HEIGHT)
//        blurView.layer.cornerRadius = 30
//        blurView.layer.masksToBounds = true
        tempbgImageView.addSubview(blurView)

其他链接：https://www.jianshu.com/p/b868f737ff8c