状态栏通知Notification用法
Notification的简单理解：http://blog.csdn.net/manymore13/article/details/6801471
Android 状态栏通知Notification用法:http://www.pocketdigi.com/20100905/89.html
Android Notification 传递参数：http://renzhen.iteye.com/blog/1176746

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.pandy.notifi"
android:versionCode="1"
android:versionName="1.0" >

<uses-sdk android:minSdkVersion="10" />
<uses-permission android:name="android.permission.VIBRATE" />

<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name" >
<activity
android:name=".NotificationDemoActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />

<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>

</manifest>

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    android:orientation="vertical" >    <TextView        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:text="@string/hello" />    <Button        android:id="@+id/button1"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="显示Notification" />    <Button        android:id="@+id/button2"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="删除Notification" /></LinearLayout>

package com.pandy.notifi;import android.app.Activity;import android.app.Notification;import android.app.NotificationManager;import android.app.PendingIntent;import android.content.Intent;import android.os.Bundle;import android.view.View;import android.widget.Button;public class NotificationDemoActivity extends Activity {/** Called when the activity is first created. */private Button button1, button2;NotificationManager nm;int notification_id=19172439;@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);button1 = (Button) findViewById(R.id.button1);button2 = (Button) findViewById(R.id.button2);nm = (NotificationManager)getSystemService(NOTIFICATION_SERVICE);button1.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {// TODO Auto-generated method stubNotification nf = new Notification(R.drawable.ic_launcher,"我就是发个通知到状态栏来显示而已.",System.currentTimeMillis());//后面的参数分别是显示在顶部通知栏的小图标，小图标旁的文字（短暂显示，自动消失）系统当前时间（不明白这个有什么用）nf.defaults=Notification.DEFAULT_ALL;//这是设置通知是否同时播放声音或振动，声音为Notification.DEFAULT_SOUND    //振动为Notification.DEFAULT_VIBRATE;    //Light为Notification.DEFAULT_LIGHTS，在我的Milestone上好像没什么反应    //全部为Notification.DEFAULT_ALL    //如果是振动或者全部，必须在AndroidManifest.xml加入振动权限PendingIntent pt=PendingIntent.getActivity(NotificationDemoActivity.this, 0, new Intent(NotificationDemoActivity.this,NotificationDemoActivity.class), 0);//点击通知后的动作，这里是转回main 这个Acticity//往下拖动后，看见列表里面的内容nf.setLatestEventInfo(NotificationDemoActivity.this,"往下拖动后的列表标题","点击查看内容",pt);    nm.notify(notification_id, nf);}});button2.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {// TODO Auto-generated method stub//取消状态栏的通知nm.cancel(notification_id);}});}}