Notifications Tutorial Part 10 - DELETE NOTIFICATION CHANNELS - Android Studio Tutorial

Published: 10 November 2018
on channel: Coding in Flow

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In part 10 of the notifications tutorial, we will learn how to delete notification channels.
For this, we simply have to call deleteNotificationChannel on the NotificationManager, where we pass the id of the channel we want to delete. Alternatively, we can call deleteNotificationChannelGroup to delete a whole NotificationChannelGroup at once.
If we create a notification channel with the same id after deleting it,
the system will recreate the same channel with the previous user settings. To avoid that we try to work around this by deleting old channels and creating new ones with different ids and our own settings, the system displays a number of deleted channels as "categories deleted" in the notification settings as a spam prevention mechanism.

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Example code for this part:
https://gist.github.com/codinginflow/...

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