Android C2DM : Duplicate message to the same device and App

Question

I\'m wondering if anyone has faced this issue with Google C2DM? This is the scenario I am faced with:

1. User installs the app and registers with C2DM server for

Answer 1

Yup, I've run into the same issue and in my opinion it's a big oversight in the Android C2DM implementation. iOS handles this much better in that an app can only ever receive notifications for one and only one device token (equivalent of the c2dm registration id)

The workaround I use is to send the last 10 characters of the registration id as part of the c2dm payload and then in my onMessage method I do the following check:

    if (!regId.endsWith(bundle.getString("regsuffix"))) return null;