Android:Notifications
lastmod 2018-08-17created 2016-06-112 edits
A notification is a message that can be displayed to the user outside of the application's normal UI. When you tell the system to issue a notification, it first appears as an icon in the notification area. To see the details of the notification, the user opens the notification drawer. Both the notification area and the notification drawer are system-controlled areas that the user can view at any time.
Notification Display Elements
Notifications in the notification drawer can appear in one of two visual styles, depending on the version and the state of the drawer:
- Normal view
- The standard view of the notifications in the notification drawer.
A notification in normal view appears in an area that's up to 64 dp tall. Even if you create a notification with a big view style, it will appear in normal view until it's expanded.
- Big view
- A large view that's visible when the notification is expanded. Big view is part of the expanded notification feature available as of Android 4.1.