///// 第一步：获取NotificationManager

		NotificationManager nm = (NotificationManager)

				getSystemService(Context.NOTIFICATION_SERVICE);

		///// 第二步：定义Notification

		Intent intent = new Intent(this, OtherActivity.class);

		//PendingIntent是待运行的Intent

		PendingIntent pi = PendingIntent.getActivity(this, 0, intent,

				PendingIntent.FLAG_CANCEL_CURRENT);

		Notification notification = new Notification.Builder(this)

				.setContentTitle("title")

				.setContentText("text")

				.setSmallIcon(R.drawable.ic_launcher).setContentIntent(pi)

				.build();

		notification.flags = Notification.FLAG_NO_CLEAR;

		/////第三步：启动通知栏，第一个參数是一个通知的唯一标识

		nm.notify(0, notification);

		//关闭通知

		//nm.cancel(0);

更复杂的功能能够查询相关api文档。