Android Tutorial

By : Ketan Bhimani

412 

do”) simply to notify the user that his picture has been uploaded to

a website or that new content has been downloaded.

The Android platform provides a number of different ways of

notifying the user. Notifications are often displayed on the status

bar at the top of the screen. Notifications may involve

 Textual information

 Graphical indicators

 Sound indicators

 Vibration of the device

 Control over the indicator light

Notifying with the Status Bar

The standard location for displaying notifications and indicators on

an Android device is the status bar that runs along the top of the

screen. Typically, the status bar shows information such as the

current date and time. It also displays notifications (like incoming

SMS messages) as they arrive—in short form along the bar and in

full if the user pulls down the status bar to see the notification list.

The user can clear the notifications by pulling down the status bar

and hitting the Clear button.

Developers can enhance their applications by using notifications

from their applications to inform the user of important events. For

example, an application might want to send a simple notification to

the user whenever new content has been downloaded. A simple

notification has a number of important components:

 An icon (appears on status bar and full notification)

 Ticker text (appears on status bar)

 Notification title text (appears in full notification)

 Notification body text (appears in full notification)