Ios Swift 3:如何创建UIImageView的模糊侧边/角?
目前我有一个Ios Swift 3:如何创建UIImageView的模糊侧边/角?,ios,swift,uiimageview,swift3,calayer,Ios,Swift,Uiimageview,Swift3,Calayer,目前我有一个CALayer应用于UIImageView如下: let l: CALayer = imageView.layer l.masksToBounds = true l.cornerRadius = 20.0 我希望实现如下模糊效果,如图所示: 我尝试了以下方法: let blurEffect = UIBlurEffect(style: .light) let visualEffectView = UIVisualEffectView(effect: blurEffect) im
CALayer
应用于UIImageView
如下:
let l: CALayer = imageView.layer
l.masksToBounds = true
l.cornerRadius = 20.0
我希望实现如下模糊效果,如图所示:
我尝试了以下方法:
let blurEffect = UIBlurEffect(style: .light)
let visualEffectView = UIVisualEffectView(effect: blurEffect)
imageView.addSubview(visualEffectView)
以及:
var visualEffectView = UIVisualEffectView(effect: UIBlurEffect(style: .light))
visualEffectView.frame = staffImageView.bounds
imageView.addSubview(visualEffectView)
然而,两者都没有达到我想要的结果
有人能在这方面提供帮助吗?这似乎很简单,但我就是做不到
更新:
我尝试过使用渐变,但运气不太好:
var maskLayer = CAGradientLayer()
maskLayer.frame = cell.imageView.bounds
let black = UIColor.white.cgColor
let clear = UIColor(white: 1, alpha: 0).cgColor
maskLayer.colors = [black, clear]
maskLayer.locations = [0.0, 0.10]
maskLayer.startPoint = CGPoint(x: 1, y: 0)
maskLayer.endPoint = CGPoint(x: 1, y: 1)
cell.imageView.layer.addSublayer(maskLayer)
结果:
Swift 4
let maskLayer = CAGradientLayer()
maskLayer.frame = yourImageView.bounds
maskLayer.shadowRadius = 5
maskLayer.shadowPath = CGPath(roundedRect: YourImagView.bounds.insetBy(dx: 5, dy: 5), cornerWidth: 10, cornerHeight: 10, transform: nil)
maskLayer.shadowOpacity = 1
maskLayer.shadowOffset = CGSize.zero
maskLayer.shadowColor = UIColor.white.cgColor
yourImageView.layer.mask = maskLayer
根据Vincent Joy post Swift 3:
let maskLayer = CAGradientLayer()
maskLayer.frame = yourImageView.bounds
maskLayer.shadowRadius = 5
maskLayer.shadowPath = CGPathCreateWithRoundedRect(CGRectInset(yourImageView.bounds, 5, 5), 10, 10, nil)
maskLayer.shadowOpacity = 1;
maskLayer.shadowOffset = CGSizeZero;
maskLayer.shadowColor = UIColor.whiteColor().CGColor
yourImageView.layer.mask = maskLayer;
let maskLayer = CAGradientLayer()
maskLayer.frame = YourImagView.bounds
maskLayer.shadowRadius = 5
maskLayer.shadowPath = CGPath(roundedRect: YourImagView.bounds.insetBy(dx: 5, dy: 5), cornerWidth: 10, cornerHeight: 10, transform: nil)
maskLayer.shadowOpacity = 1;
maskLayer.shadowOffset = CGSize.zero;
maskLayer.shadowColor = UIColor.white.cgColor
YourImagView.layer.mask = maskLayer;
Swift 4:
let maskLayer = CAGradientLayer()
maskLayer.frame = yourImageView.bounds
maskLayer.shadowRadius = 5
maskLayer.shadowPath = CGPathCreateWithRoundedRect(CGRectInset(yourImageView.bounds, 5, 5), 10, 10, nil)
maskLayer.shadowOpacity = 1;
maskLayer.shadowOffset = CGSizeZero;
maskLayer.shadowColor = UIColor.whiteColor().CGColor
yourImageView.layer.mask = maskLayer;
let maskLayer = CAGradientLayer()
maskLayer.frame = YourImagView.bounds
maskLayer.shadowRadius = 5
maskLayer.shadowPath = CGPath(roundedRect: YourImagView.bounds.insetBy(dx: 5, dy: 5), cornerWidth: 10, cornerHeight: 10, transform: nil)
maskLayer.shadowOpacity = 1;
maskLayer.shadowOffset = CGSize.zero;
maskLayer.shadowColor = UIColor.white.cgColor
YourImagView.layer.mask = maskLayer;
您是否尝试在模糊中添加遮罩,使其仅影响侧面?为什么选择
CAGradientLayer
?