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When the android gcm token expires

I am curious about the Android Android developer strategy. When I want a device registered to the Gcm service to be able to receive Gcm push messages, I will register it using the API.

Then I will get the Gcm "A" token. If I never update my application version code in the play store. And will Google update it with “B” and “A” will automatically expire?

If so, when will he do it. I looked through some articles that said that after "A" was updated with "B", then when the server tries to send the message "A", the server will receive a new registration identifier "B". Now I’m wondering how can the client side find out that the gcm token “A” has expired and replaced with “B”

Can someone answer my question?

thank

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2 answers

Yes, add onTokenRefresh () with the document

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