Android GcmListenerService parallel?

Question

Does the GcmListenerService process gcm messages in parallel or sequentially? I know that regular Android services runs in the main thread. But does this also GcmListenerService to the GcmListenerService ?

Answer 1

GcmListenerService processes messages in parallel in the background thread, see the note in docs that methods are invoked asynchronously. That way, you can perform blocking tasks in onMessageReceived () without worrying about blocking future messages.