How do you extend notifications?
To expand a notification, tap the Down arrow . Then, to act directly from a notification, tap an action, like Reply or Archive. Some apps show a dot when you get a notification. Touch and hold the app with the dot to see the oldest notification.
How many types of notifications are there?
The different types of notifications used in notification design are: user-generated notifications, push notifications, context-generated notifications, system-generated notifications, notifications requiring action from the user, passive notifications, and smart notifications.