我已经在草图中设计了UI元素,其中一个具有模糊1和展开0.的阴影.我查看了视图层属性的文档,层没有任何名为spread或blur或任何等同物(唯一的控件是只是shadowOpacity)如何控制像模糊和传播的东西？
编辑：
这就是我希望我的阴影看起来像：
这里现在是什么样子的：
注意,你必须点击图片实际看到阴影.
我的代码如下：
func setupLayer(){
view.layer.cornerRadius = 2
view.layer.shadowColor = Colors.Shadow.CGColor
view.layer.shadowOffset = CGSize(width: 0,height: 1)
view.layer.shadowOpacity = 0.9
view.layer.shadowRadius = 5
}
解决方法
你可以试试这个….你可以玩这些价值观.
shadowRadius指定模糊量. shadowOffset指示阴影在哪里.
shadowRadius指定模糊量. shadowOffset指示阴影在哪里.
Swift 2.0
let radius: CGFloat = demoView.frame.width / 2.0 //change it to .height if you need spread for height let shadowPath = UIBezierPath(rect: CGRect(x: 0,y: 0,width: 2.1 * radius,height: demoView.frame.height)) //Change 2.1 to amount of spread you need and for height replace the code for height demoView.layer.cornerRadius = 2 demoView.layer.shadowColor = UIColor.blackColor().CGColor demoView.layer.shadowOffset = CGSize(width: 0.5,height: 0.4) //Here you control x and y demoView.layer.shadowOpacity = 0.5 demoView.layer.shadowRadius = 5.0 //Here your control your blur demoView.layer.masksToBounds = false demoView.layer.shadowPath = shadowPath.CGPath
Swift 3.0
let radius: CGFloat = demoView.frame.width / 2.0 //change it to .height if you need spread for height let shadowPath = UIBezierPath(rect: CGRect(x: 0,height: demoView.frame.height)) //Change 2.1 to amount of spread you need and for height replace the code for height demoView.layer.cornerRadius = 2 demoView.layer.shadowColor = UIColor.black.cgColor demoView.layer.shadowOffset = CGSize(width: 0.5,height: 0.4) //Here you control x and y demoView.layer.shadowOpacity = 0.5 demoView.layer.shadowRadius = 5.0 //Here your control your blur demoView.layer.masksToBounds = false demoView.layer.shadowPath = shadowPath.cgPath
Example with spread
To create a basic shadow
demoView.layer.cornerRadius = 2
demoView.layer.shadowColor = UIColor.blackColor().CGColor
demoView.layer.shadowOffset = CGSizeMake(0.5,4.0); //Here your control your spread
demoView.layer.shadowOpacity = 0.5
demoView.layer.shadowRadius = 5.0 //Here your control your blur
Basic Shadow example in Swift 2.0
