title: Display image in circular shape from external storage
body: <p>I have tried following code snippet:</p>
  
  <pre><code>new Container(
      height: 80.0,
      width: 80.0,
      decoration: new BoxDecoration
      shape: BoxShape.circle,
      border: Border.all(color: const Color(0x33A6A6A6)),
      // image: new Image.asset(_image.)
      ),
      child: new Image.file(_image),
  ));
  </code></pre>
  
  <p>But it's not working.</p>