title: Disable "hide keyboard"-button
body: <p>As you perhaps know, the &quot;back&quot; - button on the Google Nexus 7 changes to a button, which hides the soft keyboard, if the keyboard is visible (see picture below).</p>
  <p><img src="https://i.stack.imgur.com/sx5Vc.png" alt="enter image description here" /></p>
  <p>But I want to disable this button, so the keyboard can't be hidden.
  Can someone tell me how to achieve this?</p>