Question

I am using GCM services for my application to recieve data from the cloud.

Unfortnately, GCM does not respond or device does not recieve any commands from GCM if the GOOGLE play is not signed in , on the device ?

IS GOOGLE PLAY SIGN UP compulsory to recieve GCM ?

Also if through my application i need to find whether device is SIGN into GOOGLE PLAY
IS it available ?

Any help would be accepted >> THANKS IN ADVANCE

Answer 1

This is explained in the GCM Architectural Overview here are the two points that are important:

It requires devices running Android 2.2 or higher that also have the
Google Play Store application installed, or or an emulator running
Android 2.2 with Google APIs. However, you are not limited to
deploying your Android applications through Google Play Store.

It uses an existing connection for Google services. For pre-3.0
devices, this requires users to set up their Google account on their
mobile devices. A Google account is not a requirement on devices
running Android 4.0.4 or higher.

So if the device is running 4.0.4 or higher a Google account is not needed.