Android开发之Notification通知用法详解

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

notification.defaults =DEFAULT_SOUND|DEFAULT_VIBRATE; 

package com.ljq.activity;
import android.app.Activity;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Intent;
import android.graphics.Color;
import android.os.Bundle;
public class MainActivity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
clearNotification();
}
@Override
protected void onStop() {
showNotification();
super.onStop();
}
@Override
protected void onStart() {
clearNotification();
super.onStart();
}
/**
* 在状态栏显示通知
*/
private void showNotification(){
// 创建一个NotificationManager的引用 
NotificationManager notificationManager = (NotificationManager) 
this.getSystemService(android.content.Context.NOTIFICATION_SERVICE); 
// 定义Notification的各种属性 
Notification notification =new Notification(R.drawable.icon, 
"督导系统", System.currentTimeMillis()); 
//FLAG_AUTO_CANCEL 该通知能被状态栏的清除按钮给清除掉
//FLAG_NO_CLEAR 该通知不能被状态栏的清除按钮给清除掉
//FLAG_ONGOING_EVENT 通知放置在正在运行
//FLAG_INSISTENT 是否一直进行，比如音乐一直播放，知道用户响应
notification.flags |= Notification.FLAG_ONGOING_EVENT; // 将此通知放到通知栏的"Ongoing"即"正在运行"组中 
notification.flags |= Notification.FLAG_NO_CLEAR; // 表明在点击了通知栏中的"清除通知"后，此通知不清除，经常与FLAG_ONGOING_EVENT一起使用 
notification.flags |= Notification.FLAG_SHOW_LIGHTS; 
//DEFAULT_ALL 使用所有默认值，比如声音，震动，闪屏等等
//DEFAULT_LIGHTS 使用默认闪光提示
//DEFAULT_SOUNDS 使用默认提示声音
//DEFAULT_VIBRATE 使用默认手机震动，需加上<uses-permission android:name="android.permission.VIBRATE" />权限
notification.defaults = Notification.DEFAULT_LIGHTS; 
//叠加效果常量
//notification.defaults=Notification.DEFAULT_LIGHTS|Notification.DEFAULT_SOUND;
notification.ledARGB = Color.BLUE; 
notification.ledOnMS =5000; //闪光时间，毫秒
// 设置通知的事件消息 
CharSequence contentTitle ="督导系统标题"; // 通知栏标题 
CharSequence contentText ="督导系统内容"; // 通知栏内容 
Intent notificationIntent =new Intent(MainActivity.this, MainActivity.class); // 点击该通知后要跳转的Activity 
PendingIntent contentItent = PendingIntent.getActivity(this, 0, notificationIntent, 0); 
notification.setLatestEventInfo(this, contentTitle, contentText, contentItent); 
// 把Notification传递给NotificationManager 
notificationManager.notify(0, notification); 
}
//删除通知 
private void clearNotification(){
// 启动后删除之前我们定义的通知 
NotificationManager notificationManager = (NotificationManager) this 
.getSystemService(NOTIFICATION_SERVICE); 
notificationManager.cancel(0); 
}
}