i want notification showed when user post new message in android app, notification should showed users using app, message in notification whatsapp notification . i using firebaserealtime database saving , retrieving message. please let me know how can achieve it. '
i have question also? if make service onchildadded() in android , listens data change of messages impact of on battery, since service running in background.
thankyou suggestions , help
take @ firebase cloud messaging. service provide, here snippet website:
using fcm, can notify client app new email or other data available sync. can send notification messages drive user reengagement , retention.
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