title: How can I make the CircleAvatar to change color when it is clicked?
body: <p><a href="https://i.stack.imgur.com/PsEnn.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/PsEnn.png" alt=" c" /></a></p>
  <p>I tried the other solutions that were published here in StackOverflow, but they didn't work. Any suggestion? `</p>
  <p>Widget _method(String day) {</p>
  <pre><code>return InkWell(
    child: new Container(
      decoration: BoxDecoration(
        shape: BoxShape.circle,
        color: Colors.black,
      ),
      child: CircleAvatar(
        backgroundColor: Colors.white,
        radius: 16.0,
        child: Text(day,
            style: TextStyle(
              color: Colors.black,
              fontSize: 12.0,
              fontFamily: 'Product-Sans',
            )),
      ),
    ),
    onTap: () {
      setState(() {
  
      });
    }
  );
  </code></pre>
  <p>}`</p>