Refreshing activity on receiving gcm push notification

Question

Update: GCM is deprecated, use FCM

How to refresh activity on receiving gcm push notification<

Answer 1

I'm assuming your GCMBroadcastReceiver is in it's own .java file?

As far as refreshing an activity, I would also like to know the answer to that question.

But for knowing if a particular activity is active or not, meaning on screen just add a boolean (call it something like "active") and set it to true in your activity's onResume() event, and to false in the onPause() event:

protected void onResume()
{
    super.onResume();

    active = true;;
}

protected void onPause()
{
    super.onPause();

    active = false;
}

Your active variable would be a boolean which is global or static. This way you know if a particular activity is in "front".

Hope that helps a bit.