UISearchController not showing on iOS8

Question

I have a UISearchController, whose searchBar is set as my tableView's tableHeaderView:

tableView.tableHeaderView = searchController.searchBar

It's working great on my device that runs iOS9:

But when I run it on my device that's running iOS8 there is no search bar.

From what I've read, the UISearchController is available for iOS8 and later. So I do not understand why its searchBar does not show up on my iOS8 device.

Answer 1

UISearchBar is not automatically setting its size add this code:

[searchController.searchBar sizeToFit];

Apple Sample