How can I interact with notification bar?
Its icon appears on the top of the screen when you receive a notification. You may also hear a sound notice depending on your sound settings. With the notification bar, you can:
1) See your notifications by swiping your finger down from the top of the screen.
2) Respond to a notification by Pressing it.
3) Dismiss a notification bar by swipe it sideways.
4) Call back or SMS back directly from notification, and even hang up the call.