I'm running into this issue involving a UINavigationController with a root view of a UITableViewController that sets a UISearchController in the navigationItem

The position of the content in the table view looks fine, until you push a new view controller onto the navigation stack and pop back to the root, where it looks like the contentOffset of the table view gets adjusted incorrectly.

I am able to fix it by setting navigationItem.searchController.isActive = false after pushing the new view controller onto the navigation stack, but I would like to understand what's happening under the hood to cause this

Relevant code:

 private func showReviewViewController(with book: Book) {
        guard let reviewViewController = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "ReviewViewController") as? ReviewViewController else { return }

        reviewViewController.viewModel = ReviewViewModel(book: book)
        reviewViewController.delegate = self
        navigationController?.pushViewController(reviewViewController, animated: true)

        /// This fixes things, but why?
        navigationItem.searchController?.isActive = false
}

How are you setting the search controller?

let searchController = UISearchController(searchResultsController: nil)

Here's the search controller code

private func setupSearch() {
        let searchController = UISearchController(searchResultsController: nil)
        searchController.obscuresBackgroundDuringPresentation = false
        definesPresentationContext = true

        navigationItem.hidesSearchBarWhenScrolling = false
        navigationItem.searchController = searchController
        searchBar = searchController.searchBar
        searchBar.delegate = self
        searchBar.placeholder = "Search by author or title"
}

I have the same behaviour in my App, looking for a fix as well ...

Try~ extendedLayoutIncludesOpaqueBars = true

@hdes92404lg's solution worked for me

    edgesForExtendedLayout = .top
    extendedLayoutIncludesOpaqueBars = true

    added above 2 lines in viewDidLoad will resolve the problem. Took very long and found this solution from another website.

@maningyt
it works.

Doesn't work for me, at least not on 12.9 inch devices: https://stackoverflow.com/questions/64063846/uisearchcontroller-as-navigationitem-obscures-content