Android GCM “Not registered” though getRegistrationId returns an ID
问题 We use GCM with multiple Android devices. A few devices (not all) which we were able to notify using GCM, are recently failing to receive the GCM trigger (GCM server returns not registered). However, when we call getRegistrationId() on the device we get the same registration ID when it was functional. Any idea why the server is returning not registered while the client is returning an actual ID? 回答1: NotRegistered is returned by GCM if If the client app unregisters with GCM. If the client app