图片背景虚化（毛玻璃效果）

image.png

image.png

@IBOutlet weak var bgImageView: UIImageView!
override func viewDidLoad() {
super.viewDidLoad()

    let effect = UIBlurEffect(style: .light)
    let effectView = UIVisualEffectView(effect: effect)
    effectView.frame = view.frame
    bgImageView.addSubview(effectView)
    

    // Do any additional setup after loading the view.
}