GCM or services?? For notifications when the app is closed?

[AC Question]

GCM or services?? For notifications when the app is closed

Can i know the appropriate method for obtaining notifications while the app is not running.
I came to know about GCM and services. I tried executing services, but I am unable to start the service. Will be glad if someone can help me in this. Thank you. smile emoticon

 

[B. Diddy]

Welcome to Android Central! Are you developing an app?