如何在我的UIView顶部添加阴影我尝试过以下但没有运气……
childView.layer.cornerRadius = 5; childView.layer.masksToBounds = YES; childView.layer.shadowOffset = CGSizeMake(-15,20); childView.layer.shadowRadius = 5; childView.layer.shadowOpacity = 0.5;
解决方法
Swift 3扩展：
这包括我正在处理的应用的默认值,但您可以更改它们以匹配您在应用中所需的样式.
enum VerticalLocation: String {
case bottom
case top
}
extension UIView {
func addShadow(location: VerticalLocation,color: UIColor = .black,opacity: Float = 0.5,radius: CGFloat = 5.0) {
switch location {
case .bottom:
addShadow(offset: CGSize(width: 0,height: 10),color: color,opacity: opacity,radius: radius)
case .top:
addShadow(offset: CGSize(width: 0,height: -10),radius: radius)
}
}
func addShadow(offset: CGSize,radius: CGFloat = 5.0) {
self.layer.masksToBounds = false
self.layer.shadowColor = color.cgColor
self.layer.shadowOffset = offset
self.layer.shadowOpacity = opacity
self.layer.shadowRadius = radius
}
}