title: Difference between android:id and android:labelFor?
body: <p>I wrote a simple layout which has an <code>EditText</code>, but it's showing the following warning message:</p>
  
  <blockquote>
    <p>“No label views point to this text field”</p>
  </blockquote>
  
  <p>While searching I found <a href="https://stackoverflow.com/a/16896135/2624806">this</a> and it solved that warning message, 
  but did not get difference between both attributes <code>android:id</code> and <code>android:labelFor</code>. Any clarification?</p>