title: Enable Search button when searching string is empty in default search bar
body: <p>In my application I am using search functionality using default IOS search bar, If i place some string for search its working fine but after the first search i need to display the entire data Source (original content) My functionality is if the search string is empty it will display the entire data source. My issue is if i make the search string as empty in default search bar, the search button automatically come to hide state. I need to enable the search button even the string is empty.</p>
  <p><img src="https://i.stack.imgur.com/UYf4J.png" alt="" /></p>