Becoming First Responder with View Did Appear: A Guide to UISearchBar in UIToolBar

How to Add a UISearchBar to a UITableView with Scroll Fixing Behavior

Understanding and Managing the Life Cycle of UISearchBar in iOS Development to Display Results Immediately After Typing

Implementing a UISearchBar in iPhone/iPad Applications for Efficient Data Filtering

Implementing Efficient Postcode Search with SearchBar, SearchDisplayController, and UITableView: Optimizing Performance with CoreData and SQLite