Special imports:
import
android.app.Notification;
//You may find v4 support library
here
import
android.support.v4.app.NotificationCompat;
import
android.app.NotificationManager;
import
android.app.PendingIntent;
Initialise
notification manager:
NotificationManager mNotificationManager=(NotificationManager)
getSystemService(Context.NOTIFICATION_SERVICE);
Prepare target
intent: This intent will be
started when user clicks on the notification which is being sent.
Intent intentTargetActivity=new
Intent();
Add the parameters
according to the requirement. Mean to say you may pass the context & class
object just like starting normal activity. Ensure if you are passing class
object, it is your application property :P
Embed target
intent into pending intent:
Create a pending
intent using target intent. Now, why this PendingIntent??? Answer is if you
wish to have a control on how your target intent being launched[like security
constraints] then you can do so using pending intents. If you have not
specified any then default target specifications will be used to launch the
target intent.
PendingIntent pendingIntentTarget=PendingIntent.getActivity(context,
REQUEST_CODE,intentTargetActivity,/*PendingIntent.FLAG_UPDATE_CURRENT*/
android.content.Intent.FLAG_ACTIVITY_NEW_TASK);
Prepare the notification:
Note: Pre HoneComb[3.0],
Building Notification directly is not directly supported. So you need use
compatibility class given in v4 support library. i.e
NotificationCompat.Builder
notificationBuilder=new NotificationCompat.Builder(this);
notificationBuilder.setSmallIcon(R.drawable.ic_launcher);//Mandatory
notificationBuilder.setContentIntent(pendingIntentTarget);//Mandatory
notificationBuilder.setWhen(System.currentTimeMillis());//Mandatory
notificationBuilder.setTicker("TickerText");//Mandatory
notificationBuilder.setContentTitle("ContentTitle");//Mandatory
notificationBuilder.setContentText("ContentText");//Mandatory
Finally build the
notification instance and set specific flags if you wish any ..
Notification notificationInfo=notificationBuilder.build();
notificationInfo.flags|=Notification.FLAG_AUTO_CANCEL;//Notification
gets cancelled once user clicks on it.
Value addition:
You may wish to
customize notification behavior? A few are shown below
//Don’t forget to add in
manifest:
// <uses-permission
android:name="android.permission.VIBRATE"/>
//notificationInfo.vibrate=VIBRATE_PATTERN;
//where VIBRATE_PATTERN is
something {100,200,100,200};
//similarly you may set audio
effect to your notification
//by setting uri of
sound file like:
//notificationInfo.sound=soundUri;
//Main thing: custom view!!
//notificationInfo.contentView=remoteView;
//Else you may wish to use the
default notification behavior by:
//notificationInfo.defaults=Notification.DEFAULT_ALL;
Finally notify!
:
How to send..? Like this:
//Using notification count
itself as ID..
//Note using this notification
ID we can controle post notification behaviour
// i.e we may cancel the
notification if it exists or check for
//presence of the notification
with same id.. etc..
mNotificationManager.notify(NOTIFICATION_ID,
notificationInfo);
Need a working
soldier? Go to My SampleNotification project on GitHub
Happy coding
.
