Broken UISearchBar animation embedded in NavigationItem

Question

I am experiencing a problem with the new way of adding search bar to the navigation item.

As you can see in the picture below, there are two UIViewControllers one af

Answer 1

In the VC1:

override func viewDidLoad() {
   if #available(iOS 11.0, *) {
        navigationItem.hidesSearchBarWhenScrolling = false
        navigationItem.searchController = searchController
    }
}
override func viewDidAppear(_ animated: Bool) {
    super.viewDidAppear(animated)
    if #available(iOS 11.0, *) {
        navigationItem.hidesSearchBarWhenScrolling = true
    }
}

In the VC2, use the same code.

This will solve your problem more clearly, than set serchController to nil