Extra space on top of UISearchController's UITableView

Question

I set up a UISearchController like this:

    searchResultsController = SearchResultsController()

    searchController = UISearchController(searchResultsController: searchResultsController)
    searchController.searchResultsUpdater = self
    searchController.hidesNavigationBarDuringPresentation = false
    searchController.dimsBackgroundDuringPresentation = true
    searchController.searchBar.searchBarStyle = .minimal
    searchController.delegate = self
    definesPresentationContext = true

    navigationItem.titleView = searchController.searchBar

SearchResultsController is just a view controller with UITableView to show search results.

When the device is in portrait, start searching in portrait mode, there is an extra space on top of the table view (the RESULT header is the start of table view)

Then if I rotate to landscape mode, the space disappeared:

When device is in landscape mode and I start search, then the table view is cut off:

Then if I rotate to portrait, the table view fits perfectly:

The extra space height is exactly same as status bar height. So I wonder there is something related to the status bar here.

This didn't happen if I assign the searchbar as table view's tableHeaderView. It only happens when searchbar is in navigation title. Anyone know why?

Answer 1

ApparentlyautomaticallyAdjustsScrollViewInsets is getting deprecated.

'automaticallyAdjustsScrollViewInsets' was deprecated in iOS 11.0: Use UIScrollView's contentInsetAdjustmentBehavior instead

So I would suggest doing something like:

searchResultsController.tableView.contentInsetAdjustmentBehavior = .never

It worked like a charm for me. Some useful documentation:

contentInsetAdjustmentBehavior

UIScrollViewContentInsetAdjustmentBehavior