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FirebaseInstanceId
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Firebase Instance ID provides a unique identifier
for each app instance and a mechanism to authenticate and authorize actions (example:
sending FCM messages). |
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FirebaseInstanceIdReceiver
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WakefulBroadcastReceiver that receives
FirebaseInstanceId and FirebaseMessaging events and delivers them to the
application-specific FirebaseInstanceIdService
subclass. |
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FirebaseInstanceIdService
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This class was deprecated. In favour of
overriding onNewToken in FirebaseMessagingService. Once that has been implemented, this
service can be safely removed. |