public class NotificationTest extends Activity{	static final int NOTIFICATION_ID = 0x1123;	@Override	public void onCreate(Bundle savedInstanceState)	{		super.onCreate(savedInstanceState);		setContentView(R.layout.main);		//获取应用界面中的Button对象		Button bn = (Button) findViewById(R.id.bn);		//为button的单击事件绑定事件监听器		bn.setOnClickListener(new View.OnClickListener()		{			@Override			public void onClick(View source)			{				//创建一个启动其它Activity的Intent				Intent intent = new Intent(NotificationTest.this					, OtherActivity.class);				PendingIntent pi = PendingIntent.getActivity(NotificationTest.this					, 0, intent , 0);				//创建一个Notification				Notification notify = new Notification();				//为Notification设置图标，该图标显示在状态栏				notify.icon = R.drawable.notify;				//为Notification设置文本内容，该文本会显示在状态栏				notify.tickerText = "启动其它Activity的通知";				//为Notification设置发送时间				notify.when = System.currentTimeMillis();				//为Notification设置声音				notify.defaults = Notification.DEFAULT_SOUND;				//为Notification设置默认声音、默认振动、默认闪光灯				notify.defaults = Notification.DEFAULT_ALL;				//设置事件信息				notify.setLatestEventInfo(NotificationTest.this, "普通通知",					"点击查看", pi);				//获取系统的NotificationManager服务				NotificationManager notificationManager = (NotificationManager) 					getSystemService(NOTIFICATION_SERVICE);				//发送通知				notificationManager.notify(NOTIFICATION_ID, notify);			}		});				//取消通知		Button del = (Button)findViewById(R.id.del);		del.setOnClickListener(new OnClickListener()		{			@Override			public void onClick(View v)			{				//获取系统的NotificationManager服务				NotificationManager notificationManager = (NotificationManager) 					getSystemService(NOTIFICATION_SERVICE);				//取消通知				notificationManager.cancel(NOTIFICATION_ID);			}		});	}}