Hide Navigation Controller Search Bar & opened Large Title programmatically

I have a tableView. I set the all settings about searchController ( Search Bar in Large Navigation Bar ) - ( open / close when scroll tableview ). I implemented rightBarButtonItem which name is 'Close' . I want to hide/close tableView and Search Bar with programmatically. I can hide tableView but not SearchBar.

When I do isHidden for SearchBar , The Large Navigation Bar doesnt shrink to normal size.

Pic 1. Opened search bar with scroll down.

Pic 2. Not Hidden Large Navigation Bar with programmatically ( searchar.isHidden not implemented here )

Thanks in advance.

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