UITableView subViews does not contain UITableViewWrapperView iOS 11

Question

I have created a UIViewController in Storyboard that contains a UITableView.

class ViewController: UIViewController, UITableViewDataSource
{
    @IBOutlet weak var tableView: UITableView!

    override func viewDidLoad()
    {
        super.viewDidLoad()
    }

    override func viewDidAppear(_ animated: Bool)
    {
        super.viewDidAppear(animated)
        print(self.tableView.subviews) //HERE..!!!
    }

    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int
    {
        return 5
    }

    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell
    {
        return tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath)
    }
}

Issue: I am facing issue with subViews of UITableView.

In iOS-10, when executing tableView.subviews, I am getting UITableViewWrapperView as one of the elements along with other elements in the array.

But in iOS-11, UITableViewWrapperView is not available in the array returned by tableView.subviews.

Due to this, I am facing issue with hitTest:withEvent: that I have overridden on UITableView.

Answer 1

In iOS-11, Apple removed UITableViewWrapperView from the table view hierarchy as confirmed in the link: https://forums.developer.apple.com/thread/82320

I was facing issue with hitTest:withEvent: because it was earlier applied on tableView.subviews.first i.e. UITableViewWrapperView.

Now, I applied hitTest on the UITableView itself instead of its wrapper view, i.e.

class TableView: UITableView
{
    override func hitTest(_ point: CGPoint, with event: UIEvent?) -> UIView?
    {
        if let hitView = super.hitTest(point, with: event) , hitView != self
        {
            return hitView
        }
        return nil
    }
}

Finally got it working.