title: Android Camera2 API How to get initial focus point distance with inbuilt AUTOFOCUS routine of camera?
body: <p>So basically I want to get the <em>focus distance</em> of lens when the focus mode is <em>AUTO</em>. </p>
  
  <p>Currently I am working like this:</p>
  
  <ul>
  <li><p>Assuming <code>CONTROL_AF_MODE</code> is set to <code>CONTROL_AF_MODE_AUTO</code> by default.</p></li>
  <li><p>Trying to get <code>CaptureRequest.LENS_FOCUS_DISTANCE</code> which returns <code>0.0</code> on  NEXUS 5 virtual device and <code>null</code> on Redmi Note 3.</p></li>
  </ul>
  
  <p>Is it the correct logic?</p>