recover message discarded in GCM
<p>i want to  ask about GCM. in document of google <a href="http://developer.android.com/google/gcm/adv.html#collapsible" rel="nofollow">GCM</a></p>

<p>note that 100 message stored without discard in case application is offline and i have much than 100 message from server sent to GCM my application  should respond by syncing with the server to recover the discarded messages.so how to sync i should? thank you so much</p>
