swift - layer - 渐变色 - CAGradientLayer

概述  1。创建 渐变色 /// 渐变色：默认从上到下 private var gradientLayer: CAGradientLayer = { let g = CAGradientLayer() g.colors = [UIColor.init(hexColor: "DBB479").cgColor,

 

1。创建 渐变色

   /// 渐变色：默认从上到下    private var gradIEntLayer: CAGradIEntLayer = {        let g = CAGradIEntLayer()        g.colors = [UIcolor.init(hexcolor: "DBB479").cgcolor,UIcolor.init(hexcolor: "F7E1B3").cgcolor]        //改为从左到右 的渐变        g.startPoint = CGPoint(x: 0,y: 0)        g.endPoint = CGPoint(x: 1,y: 0)        return g    }()

　　

2.给指定vIEw 添加渐变色

    /// 荣誉背景图    private lazy var credibilityBgVIEw : UIVIEw = {        let v = UIVIEw()        v.layer.addSublayer(self.gradIEntLayer)        v.translatesautoresizingMaskIntoConstraints = false        v.layer.cornerRadius = 5        v.layer.masksToBounds = true        v.isUserInteractionEnabled = true        v.addGestureRecognizer(UITapGestureRecognizer(target: self,action: #selector(clcikCredibilityBgVIEw)))        return v    }()

　　

3. 设置 渐变色frame

    overrIDe func draw(_ rect: CGRect) {        super.draw(rect)        gradIEntLayer.frame = credibilityBgVIEw.bounds    }

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