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我有一个CAShapeLayer
只有底部圆角。我想要的是在底部添加阴影,但它不起作用,即使代码看起来显然是正确的。它所有的东西都围绕着底角,但我没有看到阴影。用CAShapeLayer添加阴影?
let shapeLayer = CAShapeLayer()
let path = UIBezierPath(roundedRect: self.bounds, byRoundingCorners: [.bottomLeft, .bottomRight], cornerRadii: CGSize(width: 20, height: 20)).cgPath
shapeLayer.path = path
shapeLayer.shadowColor = UIColor(r: 233, g: 233, b: 233).cgColor
shapeLayer.shadowOffset = CGSize(width: 0.0, height: 2.8)
shapeLayer.shadowOpacity = 1.0
shapeLayer.shadowRadius = 0.0
shapeLayer.shouldRasterize = true
shapeLayer.rasterizationScale = UIScreen.main.scale
layer.rasterizationScale = UIScreen.main.scale
layer.mask = shapeLayer
感谢!我从这个问题得到了一个想法。我所做的只是创建一个带阴影的虚拟背景视图;并将其插入到具有圆角的视图中(使用'insertSubView')。 –
将子图层添加到我的图层会使视图完全变黑 –