Rob*_*b N 24 shadow calayer uiview ios ios8
我有一个自定义UIControl,我希望它有一个阴影,所以我设置相关的属性layer.视图周围会出现阴影,但阴影也会出现在a的文本下面UILabel,这是一个子视图.你怎么阻止这个?我只想要外部超视图周围的阴影.

...
init() {
label = UILabel()
label.translatesAutoresizingMaskIntoConstraints = false
self.translatesAutoresizingMaskIntoConstraints = false
addSubview(label)
self.layer.masksToBounds = false
self.layer.shadowColor = UIColor.blackColor().CGColor
self.layer.shadowOpacity = 1.0
self.layer.shadowRadius = 2.0
// Adding these lines trying to explicitly stop shadow on label...
label.layer.shadowOpacity = 0
label.layer.shadowColor = nil
...
}
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