When assigning focus via becomeFirstResponder to UISearchController's UISearchBar, the keyboard does not appear

Question

I\'ve spent quite a bit of time searching online and talking to other developers about this issue to no avail. The exact issue is described in this SO post (Focus on the UIS

Answer 1

On iOS 9 I've found its sufficient to delay becomeFirstResponder() to the next run loop:

func focusSearchField() {
    searchController?.active = true

    // skipping to the next run loop is required, otherwise the keyboard does not appear
    dispatch_async(dispatch_get_main_queue(), { [weak self] in
        self?.searchController?.searchBar.becomeFirstResponder()
    })
}