title: How to show list when click on textfield like search
body: <p>I need to implement search on list. I need to show sorted list when user click on textfield</p>
  <p>I have a simple text field like this</p>
  <pre><code>Container(
    width: Width * 0.92,
    child: TextFormField(
      onChanged: (value) {},
      onSaved: (value) {},),
  ),
  </code></pre>
  <p>What i need to achive is this</p>
  <p>Here is simple input</p>
  <p><a href="https://i.stack.imgur.com/ldmSM.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/ldmSM.png" alt="enter image description here" /></a></p>
  <p>On type few search word it will open this</p>
  <p><a href="https://i.stack.imgur.com/cwAb6.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/cwAb6.png" alt="enter image description here" /></a></p>