Grouped UITableview remove outer separator line

Question

I have a grouped UITableview which is created programatically. Also I have a cell with xib file populated in tableview programmatically as well. So far so good. But I want t

Answer 1

Based on cook's answer, but without a timer:

override func didAddSubview(_ subview: UIView) {
    super.didAddSubview(subview)
    if NSStringFromClass(subview.classForCoder) != "UITableViewCellContentView" && subview.frame.width == frame.width {
        subview.removeFromSuperview()
    }
}

Just add this in a cell's subclass and you don't need anything else. Works on iOS 12.