Updating the display during lengthy operations
for each distinct type of notification you need to send.
This change doesn't affect other aspects of notification behavior, and notification messages still post as expected.
To create a notification channel: Attempting to create an existing notification channel with its original values performs no operation, so it's safe to perform the preceding sequence of steps when starting an app.
The following code sample demonstrates creating a notification channel with a high importance level and a custom vibration pattern: Notification Manager m Notification Manager = (Notification Manager) get System Service(Context. String id = "my_channel_01"; // The user-visible name of the channel.
Starting in Android 8.0 (API level 26), notification channels allow you to create a user-customizable channel for each type of notification you want to display.
Notification channels provide a unified system to help users manage notifications.