iOS 13-UISegmentedControl-如何更改selectedSegment的角半径？

Question

In regards to iOS 13 updates on UISegmentedControl:

This custom UISegmentedControl class rounds the corners of the segmented control. But it does not round the corners of the selected control (that still has the default corner radius). This makes it look weird, especially when you have a border on the segmented control:

class SegmentedControl: UISegmentedControl {
      override func layoutSubviews() {
        super.layoutSubviews()

        layer.cornerRadius = 20
        layer.masksToBounds = true
        clipsToBounds = true
     }
}

Before you could just do segmentedControl.layer.cornerRadius = 20 and it would apply to everything but you can't do that anymore.

Has anyone figured this out?

Answer 1

UISegmentControl doesn't expose internal subviews for any changes. You can use custom segment control that will provide more options for customisation. That's an example from first suggestions results of search on Github: https://github.com/sasojadrovski/SJFluidSegmentedControl