iOS9 Scope Bar appears either behind or beside Search Bar

Question

I have a custom UITableViewController with a UISearchController set to the tableHeaderView as follows inside viewDidLoad():

    definesPresentationContext = true
    searchController.searchResultsUpdater = self
    searchController.searchBar.delegate = self
    searchController.dimsBackgroundDuringPresentation = false
    if #available(iOS 9.1, *) {
        searchController.obscuresBackgroundDuringPresentation = false
    }
    searchController.searchBar.barStyle = .Black
    searchController.searchBar.searchBarStyle = .Default
    searchController.searchBar.keyboardAppearance = .Dark
    searchController.searchBar.scopeButtonTitles = ["Title 1", "Title 2", "Title 3", "Title 3", "Title 3", "Title 3"]
    tableView.tableHeaderView = searchController.searchBar

When UITableViewController first loads, the scope bar is visible underneath the search bar and taking the whole width:

After touching inside the search bar, the scope bar is shown beside the search bar:

After hitting cancel, the search bar is shown properly without the scope bar underneath, although subsequence touches on the search bar still reveal the scope bar beside it:

I've tried the following:

• Changing searchBarStyle from .Minimal to .Default
• Calling sizeToFit() on searchBar and tableHeaderView, tried in both viewDidLoad() and viewWillAppear()
• Explicitly setting frame height of searchBar and tableHeaderView to 88 in viewWillAppear()
• The proposed solutions here
• Purging all builds, cleaning and rebuilding.

Nothing so far has made any difference whatsoever to the appearance or behavior. I want the scope bar below the search bar, and for it not to appear behind the search bar initially. Is UISearchController busted or I am just doing something dumb.

Answer 1

This is a bug in UISearchBar, you should create a radar for it.

A workaround is to add some code AFTER you set scopeButtonTitles:

UIView *scopeBarContainer = [[[searchController.searchBar.subviews firstObject] subviews] firstObject];
for ( UIView *view in scopeBarContainer.subviews ) {
    if ( [view isKindOfClass:[UISegmentedControl class]] ) {
        scopeBarContainer.hidden = YES;
        break;
    }
}