How to change the colors of a segment in a UISegmentedControl in iOS 13?

Question

A UISegmentedControl has a new appearance in iOS 13 and existing code to alter the colors of the segmented control no longer work as they did.

Prior to

Answer 1

If you want to set the background to clear you have to do this:

if #available(iOS 13.0, *) {
  let image = UIImage()
  let size = CGSize(width: 1, height: segmentedControl.intrinsicContentSize.height)
  UIGraphicsBeginImageContextWithOptions(size, false, 0.0)
  image.draw(in: CGRect(origin: .zero, size: size))
  let scaledImage = UIGraphicsGetImageFromCurrentImageContext()
  UIGraphicsEndImageContext()
  segmentedControl.setBackgroundImage(scaledImage, for: .normal, barMetrics: .default)
  segmentedControl.setDividerImage(scaledImage, forLeftSegmentState: .normal, rightSegmentState: .normal, barMetrics: .default)
}