ios - 如何在 cgmutablepath 中设置形状的颜色？

Question

我正在使用 cgmutablepath 绘制一个多边形，我想为多边形填充颜色，但它不起作用，我不知道为什么......

下面是我的代码:

var path = CGMutablePath()
        path.move(to: CGPoint(x: 127.5, y: 12.5))
        path.addLine(to: CGPoint(x: 165.0, y: 13.0))
        path.addLine(to: CGPoint(x: 165.0, y: 50.5))
        path.addLine(to: CGPoint(x: 127.5, y: 50.5))
        path.closeSubpath()

       var shape = CAShapeLayer()
       shape.path = path
       shape.lineWidth = 3.0
       shape.strokeColor = UIColor.blue.cgColor
       shape.fillColor = UIColor.blue.cgColor

Answer 1

尝试用更新后的代码替换您的代码:

    var path = CGMutablePath()
    path.move(to: CGPoint(x: 127.5, y: 12.5))
    path.addLine(to: CGPoint(x: 165.0, y: 13.0))
    path.addLine(to: CGPoint(x: 165.0, y: 50.5))
    path.addLine(to: CGPoint(x: 127.5, y: 50.5))
    path.closeSubpath()

   var shape = CAShapeLayer()
   shape.path = path
   shape.lineWidth = 3.0
   shape.strokeColor = UIColor.blue.cgColor
   shape.fillColor = UIColor.blue.cgColor
   self.layer.addSublayer(shapeLayer)

请尝试一下，如有错误请评论。快乐编码。