Notifications alert you to the arrival of new messages, calendar events, and alarms, as well as ongoing events, such as video downloads.
When a notification arrives, its icon appears at the top of the screen. Icons for pending notifications appear on the left, and system icons showing things like Wi-Fi signal or battery strength on the right:
To open the notification panel, swipe down from the top of any screen.
You can use Quick Setings to easily access Wi-Fi settings, manage display brightness, open the main Settings menu, and more. You can also learn more about the conditions of your status icons in Quick Settings.
Open the Notifications panel, swipe the Quick Settings to the left, and tap Edit to edit the panel. To rearrange the order, drag the remote handle up or down