如何在Swift 5（iOS）中创建虚线步骤指示器

Question

我有一个要求像在swift 5中画一个虚线的步长指示器。我需要在垂直位置（从上到下）的踏板指示器。我使用了以下代码，但是当我在iPad中运行该应用程序时，它来错了。

private func drawLinePath() {
       //let linePath = UIBezierPath()
         let  path = UIBezierPath()

         let centerX = self.frame.width / 2.0
         let lineHeight = self.frame.height / 10

          path.move(to: CGPoint(x: centerX, y: 0))
          path.addLine(to: CGPoint(x: centerX, y: lineHeight))
          path.move(to: CGPoint(x: centerX, y:lineHeight + 3))
          path.addLine(to: CGPoint(x: centerX, y: lineHeight + 5))
          path.move(to: CGPoint(x: centerX, y:lineHeight + 8))
          path.addLine(to: CGPoint(x: centerX, y: lineHeight + 10))
          path.move(to: CGPoint(x: centerX, y:lineHeight + 12))
          path.addLine(to: CGPoint(x: centerX, y: lineHeight + 15))
          path.move(to: CGPoint(x: centerX, y:lineHeight + 18))
          path.addLine(to: CGPoint(x: centerX, y: lineHeight + 21 ))

          path.move(to: CGPoint(x: centerX, y:lineHeight + 23))
          path.addLine(to: CGPoint(x: centerX, y: lineHeight + 26))
          path.move(to: CGPoint(x: centerX, y:lineHeight + 28))
          path.addLine(to: CGPoint(x: centerX, y: lineHeight + 31))
          path.move(to: CGPoint(x: centerX, y:lineHeight + 33))
          path.addLine(to: CGPoint(x: centerX, y: lineHeight + 36))
          path.move(to: CGPoint(x: centerX, y:lineHeight + 38))
          path.addLine(to: CGPoint(x: centerX, y: lineHeight + 41))
          self.path = path.cgPath

        }

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我有一个要求像在swift 5中画一个虚线的步长指示器。我需要应该是...

Answer 1

对于该虚线路径，您可以使用UILabel并使用所需的字体大小和颜色将文本设置为'......'。无需绘制任何贝塞尔曲线。只需使用UILabel。