*Notification channel groups*
* Notification channels let us bundle together notification channels
* Beneficial where we find ourselves using the same notification channels in several places in our app.
* Example use case:
* * our app supports both a personal account and a business account
* * both account types have identical notification channels;
* * A personal user account including 2 notification channels:
* ** Notifications of new comments on your posts.
* ** Notifications recommending posts by your contacts.
* * A business user account including 2 notification channels:
* ** Notifications of new comments on your posts.
* ** Notifications recommending posts by your contacts.
* In the above use case it makes sense to use notification channel groups
* To create a notification channel group:
{code:java}
// The id of the group.
String group = "my_group_01";
// The user-visible name of the group.
CharSequence name = getString(R.string.group_name);
NotificationManager mNotificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
mNotificationManager.createNotificationChannelGroup(new NotificationChannelGroup(group, name));
{code}
- Once you've created a new group you can call `setGroup()` to associate a new channel with the group.
- You can only modify the association between notification channel and group before you submit the channel to the notification manager.
- To create a batch of notification groups by using the `createNotificationChannelGroups()` method, we can pass in a List of NotificationChannelGroup instances for the groups we wish to create:
{code:java}
NotificationManager notificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
List<NotificationChannelGroup> notificationChannelGroups = new ArrayList();
notificationChannelGroups.add(new NotificationChannelGroup("group_one", "Group One"));
notificationChannelGroups.add(new NotificationChannelGroup("group_two", "Group Two"));
notificationChannelGroups.add(new NotificationChannelGroup("group_three", "Group Three"));
notificationManager.createNotificationChannelGroup(notificationChannelGroups);
{code} |
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