title: How to notice if the device GCM registrationID is expired?
body: <p>I know that the <code>registrationID</code> of my device is not stable in GCM and it might be expired on google server. </p>
  
  <p>When <code>registrationID</code> is expired I should renew it and send it to my GCM server.</p>
  
  <p>My Android app saves its first <code>registrationID</code> and use it. How can I notice in my Android app if <code>registrationID</code> has been expired in google server for renewing it and sending to GCM server?</p>