title: Searching within AlertDialog
body: <p>I have an alert dialog which lists around 100 cities. Is there a way to search within it? Or maybe autocomplete?</p>
  
  <p><img src="https://i.stack.imgur.com/ZGplf.png" alt="alt text"></p>
  
  <p>I want to add a textbox which will filter the list according to what I type.</p>
  
  <p>EDIT: I'm very SORRY. What I meant was that I wanted to FILTER the above list based on what I type in a textbox. For example if I type 'D', I should get only Dhaka..</p>