Notification

A - Introduction

In Android, an application can push a message to user called Notification outside its normal UI.

First, the notification will appear on the Notification Bar

User can see all the detail of a notification by opening the Notification Drawer

B - Notification Display Elements

Android Notification has 2 views: Normal View and Big View. In this post, I only focus on Normal View. Big View will have its own entry later :)

1. Content title
2. Large icon
3. Content text
4. Content info
5. Small icon
6. Time that the notification was issued

C - Demo

To push a notification, first of all, you need to create a NotificationManager object:

Then, create a Notification object:

The constructor of Notification has 3 arguments:

• The large icon (2) in Normal View
• Notification content title
• Notification time

After that, create a PendingIntent instance by calling PendingIntent.getActivity() method. This instance will start an activity when user tap on the notification.

• The 3rd argument is the Activity you want to start

Assign the latest notification by setLatestEventInfo() method:

Push the notification:

The notify() method has 2 arguments:

• ID : to distinguish notifications. If there're 2 notifications with same ID, only notify the latest one.
• A Notification instance.

The result of this demo application:

 

D - Download Source Code

http://www.mediafire.com/download.php?uh37y8qmtiwr65c