TableView 에서 Button highlight 안될때!

tableView.delaysContentTouches = false
tableView.canCancelContentTouches = true

class HighlighTableView: UITableView {
    override func touchesShouldCancel(in view: UIView) -> Bool {
        if view is UIButton {
              return true
        }
        return super.touchesShouldCancel(in: view)
    }
}