Huawei P9 Lite - Manual (Page 43)

Getting Started
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Notification badges
Notification badges appear in the top right corner of application icons.
The badge number indicates the number of new notifications. Open the corresponding
application to view more details about the notifications.
To disable notification badges for an application, pinch two fingers together on the
home screen to open the home screen editor, and then touch More settings > Badge
app icons and turn off the switch next to the corresponding application.
Notification panel
Swipe down from the status bar and open the notification panel to view notifications.
Swipe left on the notification panel to go to the shortcuts tab.
Swipe up on the screen, or touch Back or Home to close the notification
panel.