我在 Playstore 中发布了使用 GCM 的应用，并且我计划使用 FCM 进行迁移.我需要的所有信息都已找到，但我有一个问题尚未找到答案.我的问题是创建令牌后，令牌会像 GCM 那样定期更改吗?
I have published apps in playstore that use GCM and I have a plan to migrate using FCM. everything information i needed have found, but i have one question that not find answer yet. my question is when token have been created, are token will be change periodically like GCM does?
谢谢
与 GCM 的工作原理类似，FCM 令牌可以因令牌轮换而改变.
Similarly to how GCM works, the FCM token can change due to token-rotation.
您可以拦截实现回调的令牌轮换:FirebaseInstanceId.onTokenRefresh()
You can intercept the token rotation implementing the callback: FirebaseInstanceId.onTokenRefresh()
https://firebase.google.com/docs/cloud-messaging/android/client#sample-register
注意:令牌轮换是一种罕见的事件.不要期望经常看到它.
但是，如果您关心令牌，您应该实现 onTokenRefresh() 以了解更改.
Note: the token rotation is a rare-event. Don't expect to see it often.
But still, if you care about the token you should implement onTokenRefresh() to be informed of changes.
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