SearchBar hides under NavigationBar

Question

I added a searchBar into a tableview. I also have a navigationbar and it should appear under it. It works fine until I tap into the searchbar. When I do so on devices with larger screen size (from iPhone 6) the searchbar hides under the navigationbar. It works as expected on an actual iPhone 5, 5s. This is how I initialize the searchBar:

    searchController.searchResultsUpdater = self as UISearchResultsUpdating
    searchController.dimsBackgroundDuringPresentation = false
    definesPresentationContext = true
    tableView.tableHeaderView = searchController.searchBar
    searchController.hidesNavigationBarDuringPresentation = false
    searchController.searchBar.tintColor = UIColor.black


    searchController.searchBar.scopeButtonTitles = ["Device", "Person", "OS version"]
    searchController.searchBar.delegate = self as UISearchBarDelegate

The searchBar should not hide because I need the segmented control on the navigationBar when I'm searching too. Do you have any idea how can I fix this problem?

Update: After setting the extended edges the searchBar looks like this:

Answer 1

I solved the problem. It was an iOS 11 issue. According to wwdc recommendation you should add the searchBar for the navigationItem.

if #available(iOS 11.0, *) {
    self.navigationItem.searchController = self.searchController
    self.navigationItem.hidesSearchBarWhenScrolling = false

} else {
    tableView.tableHeaderView = searchController.searchBar
}

This solves the problem and it's working fine with any iOS type now. The searchBar will look like this on iOS 11:

Answer 2

Select your viewController. Then in Utility Window you un tick the 1:- Under Top Bars