notification<android>

            // 1. 获取到系统的notificationManager
	NotificationManager notficationManager;
	    notficationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
		
	    // 2. 实例化一个notification 
	     String tickerText = "IP号码 设置完毕";
	     long when = System.currentTimeMillis();
	     Notification notification = new Notification(R.drawable.notification, tickerText, when);
	   //  notification.flags= Notification.FLAG_NO_CLEAR
	     notification.sound = Uri.parse("/sdcard/haha.mp3"); 
	     
	     
	     
	     //3 .设置用户点击notification的动作 
	     // pendingIntent 延期的意图 
	     Intent intent = new Intent(this,MainActivity.class);
	     
	     PendingIntent pendingIntent  = PendingIntent.getActivity(this, 0, intent, 0);
	     // 把一个延期的意图设置给 notification
	     notification.setLatestEventInfo(this, "自动ip拨号设置完成", "ip号码为"+ipnumber, pendingIntent);
	    
	     //4. 把定义的notification 传递给 notificationmanager 
	     notficationManager.notify(0, notification);