I am curious about android Gcm Token Expire strategy. When I want me device registered with Gcm service to be able to receive Gcm push messages, I will register it with the API.
Then I will get a Gcm Token "A". If I never upgrade my app version code on play store. And will google refresh it with "B" and expire "A" automatically?
If yes, when will it do it. I have viewed some articles saying that once "A" got refreshed with "B", then when the server try to send message to "A", server will get the new registration id "B". I am now wondering how can the client side know that the gcm Token "A" expired and got replaced with "B"
Can some one answer my question?