How can I make navigation item searchbar fully visible/hidden, when I scroll down/up?

Question

I can make search bar in navigation item partially visible when I Scroll the tableView, But I want only fully visible or fully hidden. I couldn't make searchBar partially visible in any other iOS Apps like Notes, WhatsApp, Telegram etc. I guess I can make this in scrollViewDidScroll delegate. But, is there a way to achieve this by default?