iOS - Add vertical line programatically inside a stack view

Question

I\'m trying to add vertical lines, between labels inside a stack view all programatically.

The desired finish will be something like this image:

I c

Answer 1

@mark-bourke's answer only worked for a single separator. I fixed the invalidateSeparators() method for multiple separators. I haven't tested it with horizontal stack views, but it works for vertical ones:

  private func invalidateSeparators() {
    guard arrangedSubviews.count > 1 else {
      separators.forEach({$0.removeFromSuperview()})
      separators.removeAll()
      return
    }

    if separators.count > arrangedSubviews.count {
      separators.removeLast(separators.count - arrangedSubviews.count)
    } else if separators.count < arrangedSubviews.count {
      for _ in 0..<(arrangedSubviews.count - separators.count - 1) {
        separators.append(UIView())
      }
    }

    separators.forEach({$0.backgroundColor = self.separatorColor; self.addSubview($0)})

    for (index, subview) in arrangedSubviews.enumerated() where arrangedSubviews.count >= index + 2 {
      let nextSubview = arrangedSubviews[index + 1]
      let separator = separators[index]

      let origin: CGPoint
      let size: CGSize

      if axis == .horizontal {
        let originX = subview.frame.maxX + (nextSubview.frame.minX - subview.frame.maxX) / 2.0 + separatorInsets.left - separatorInsets.right
        origin = CGPoint(x: originX, y: separatorInsets.top)
        let height = frame.height - separatorInsets.bottom - separatorInsets.top
        size = CGSize(width: separatorWidth, height: height)
      } else {
        let originY = subview.frame.maxY + (nextSubview.frame.minY - subview.frame.maxY) / 2.0 + separatorInsets.top - separatorInsets.bottom
        origin = CGPoint(x: separatorInsets.left, y: originY)
        let width = frame.width - separatorInsets.left - separatorInsets.right
        size = CGSize(width: width, height: separatorWidth)
      }

      separator.frame = CGRect(origin: origin, size: size)
      separator.isHidden = nextSubview.isHidden
    }
  }