What is android notifications?
Definition from Android developers site:
A status notification adds an icon to the system’s status bar (with an optional ticker-text message) and a notification message in the notifications window. When the user selects the notification, Android fires an Intent that is defined by the Notification(usually to launch an Activity). You can also configure the notification to alert the user with a sound, a vibration, and flashing lights on the device.
What are we going to develop?
The application which we are going to develop will have two buttons – one to trigger notification and other to clear the triggered notification.