title: How can we identify the type of password
body: <p>In android device we have five type of password </p>
  
  <ol>
  <li>None</li>
  <li>slide</li>
  <li>pattern</li>
  <li>password</li>
  <li>PIN</li>
  </ol>
  
  <p>How can I identify which type of password is used by the user?
  Android provides <code>DevicePolicyManger</code> but it does not gives this information.</p>