UIVisualEffectView上的圆角半径

Question

嗨，我想知道是否有可能在UIVisualEffectView上设置转角半径？下面是我尝试过的代码：

@IBOutlet var blurView: UIVisualEffectView!

var blurLayer : CALayer{
    return blurView.layer
}
override func viewDidLoad() {
    super.viewDidLoad()
    setUpLayer()
    // Do any additional setup after loading the view.
}

func setUpLayer(){
    blurLayer.cornerRadius = 50
}

和

@IBOutlet var blurView: UIVisualEffectView!

override func viewDidLoad() {
    super.viewDidLoad()
    blurView.layer.cornerRadius = 50
    // Do any additional setup after loading the view.
}

它们都不起作用。

Answer 1

在@theMonster建议之后，我发布了一个评论。

override func viewDidLoad() {
    super.viewDidLoad()
    blurView.layer.cornerRadius = 50
    blurView.clipsToBounds = true
}

Answer 2

在情节提要中，在用户定义的运行时属性layer.cornerRadius = 8和layer.masksToBounds = true中添加两个参数

或者在代码中

@IBOutlet var blurView: UIVisualEffectView! {
    didSet {
        blurView.layer.cornerRadius = 8
        blurView.layer.masksToBounds = true
    }
}

Answer 3

子类UIVisualEffectView

class PSORoundedVisualEffectView : UIVisualEffectView{

    override func layoutSubviews() {
        super.layoutSubviews()
        updateMaskLayer()
    }

    func updateMaskLayer(){
        let shapeLayer = CAShapeLayer()
        shapeLayer.path = UIBezierPath(roundedRect: self.bounds, cornerRadius: 10).CGPath
        self.layer.mask = shapeLayer
    }
}

将UIBezierPath替换为所需的任意形状。