set notification on alarm receiver android

In my android application i would like to set an alaram programmatically. Setting alarm is working properly but how can i apply notification to this on recieving alarm.

I have gone through notifications in developer guide.

Please find the code.

Calendar cal=Calendar.getInstance();
    Intent alaram=new Intent(Alarmmanager.this,GroupsCheckAlarmReceiver.class);
    PendingIntent pendingIntent = PendingIntent.getBroadcast(Alarmmanager.this, 0, alaram,0);
    AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
    alarmManager.set(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(),pendingIntent); 
    cal.setTimeInMillis(System.currentTimeMillis()); 

    sendBroadcast(alaram,"setalaram");

and in broadcast 开发者_如何学JAVAreceiver

public class GroupsCheckAlarmReceiver extends BroadcastReceiver{ 

@Override 
 public void onReceive(final Context context, Intent intent) { 
 Toast.makeText(context, "Alarm worked.", Toast.LENGTH_LONG).show(); 

 } 

It is working fine but to set notification i need to set notification manager which works fine only in activity extended class ,how can i use it on receive and notify.

Please share your valuable suggestions.

Thanks in advance :)

I think you can use your context in onReceive to find the NotificationManager and call notify:

@Override 
public void onReceive(Context context, Intent intent) {
    NotificationManager notifications = (NotificationManager)
        context.getSystemService(Context.NOTIFICATION_SERVICE);
    notifications.notify( ... );
}

If you have a Context you can do just about anything! :)

You may find useful to just use the BuzzBox SDK to schedule a task and to create notifications. It supports a crontab string to schedule recurring tasks. BuzzBox SDK Website