title: Chips in TextField
body: <p>How does one put a Chip in a TextField when it's selected?</p>
  <p>I'm trying to use Chips as a way to filter Firestore data.</p>
  <p>Each Chip will have a separate query, for example:</p>
  <pre><code>Stream&lt;QuerySnapshot&gt; getName(BuildContext context) async* {
  final uid = await TheProvider.of(context).auth.getCurrentUID();
  yield* FirebaseFirestore.instance
      .collection(&quot;userData&quot;)
      .doc(uid)
      .collection(&quot;Contacts&quot;)
      .where('searchIndex', arrayContains: searchString)
      .snapshots();
  }
  </code></pre>
  <p>I have just created this image to better explain what I am trying to accomplish.</p>
  <p><a href="https://i.stack.imgur.com/YYVYr.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/YYVYr.png" alt="enter image description here" /></a></p>