title: How to get the current screen lock info?
body: <p>I have an app which allows to remotely lock other phones named "Parental Lock".</p>
  
  <p>In the app, users can put a password for a time to their "children"s phone.</p>
  
  <p>The problem is when the time specified by the "parent" ends, I want to remove the password given by the "parent" and restore the original one if there was. </p>
  
  <p>For now, when the time ends, I am removing the password via device manager from the phone but to restore the old password put by the user itself long before, I must get the password info.</p>