Android Notification 的使用

import android.app.PendingIntent;
import android.app.NotificationManager;
import android.app.Notification;

NotificationManager nm = (NotificationManager)getSystemService(Context.NOTIFICATION_SERVICE);               
Notification n = new Notification(R.drawable.chat, "Hello,there!", System.currentTimeMillis());             
n.flags = Notification.FLAG_AUTO_CANCEL;                
Intent i = new Intent(arg0.getContext(), NotificationShow.class);
i.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP|Intent.FLAG_ACTIVITY_NEW_TASK);           
//PendingIntent
PendingIntent contentIntent = PendingIntent.getActivity(
        arg0.getContext(), 
        R.string.app_name, 
        i, 
        PendingIntent.FLAG_UPDATE_CURRENT);
                 
n.setLatestEventInfo(
        arg0.getContext(),
        "Hello,there!", 
        "Hello,there,I‘m john.", 
        contentIntent);
nm.notify(R.string.app_name, n);

otificationManager nm = (NotificationManager)getSystemService(Context.NOTIFICATION_SERVICE);

Notification n = new Notification(R.drawable.chat, "Hello,there!", System.currentTimeMillis());             
n.flags = Notification.FLAG_ONGOING_EVENT;  

n.flags = Notification.FLAG_AUTO_CANCEL;

Intent i = new Intent(arg0.getContext(), NotificationShow.class);
i.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP|Intent.FLAG_ACTIVITY_NEW_TASK);

PendingIntent contentIntent = PendingIntent.getActivity(
        arg0.getContext(), 
        R.string.app_name, 
        i, 
        PendingIntent.FLAG_UPDATE_CURRENT);

n.setLatestEventInfo(
        arg0.getContext(),
        "Hello,there!", 
        "Hello,there,I‘m john.", 
        contentIntent);

nm.notify(R.string.app_name, n);

PendingIntent contentIntent = PendingIntent.getActivity(
    arg0.getContext(), 
    R.string.app_name,
    i, 
    PendingIntent.FLAG_UPDATE_CURRENT);
             
RemoteViews rv = new RemoteViews(Main.this.getPackageName(), R.layout.notification_view);
rv.setImageViewResource(R.id.image, R.drawable.chat);
rv.setTextViewText(R.id.text, "Hello,there,I‘m john.");
n.contentView = rv;
n.contentIntent = contentIntent;
 
nm.notify(R.string.app_name, n);

     NotificationManager mNotificationManager = (NotificationManager) myContext.getSystemService(NOTIFICATION_SERVICE); 
            long when = System.currentTimeMillis(); 
            Notification notification = new Notification(resource, tickerText, when); 
            /* 
             * Notification.FLAG_AUTO_CANCEL ，该标志表示当用户点击 Clear 之后，能够清除该通知 
             */ 
            notification.flags = Notification.FLAG_ONGOING_EVENT; 
        notification.flags = Notification.FLAG_NO_CLEAR;  //永久存在，不能删除 

       notification.defaults = Notification.DEFAULT_SOUND;  //声音 
        notification.defaults = Notification.DEFAULT_LIGHTS;  //灯光 
        notification.defaults = Notification.DEFAULT_VIBRATE;  //震动 
           
            /* 
             * 创建点击事件开启Activity对象 
             * 
             * 如果要以该Intent启动一个Activity，一定要设置 Intent.FLAG_ACTIVITY_NEW_TASK 标记 
             * Intent.FLAG_ACTIVITY_CLEAR_TOP ：如果在当前Task中，有要启动的Activity， 
             * 那么把该Acitivity之前的所有Activity都关掉，并把此Activity置前以避免创建Activity的实例 
             */ 
            Intent notificationIntent = new Intent(myContext, VoiceIdentifyActivity.class); 
            notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP|Intent.FLAG_ACTIVITY_NEW_TASK); 
            
            /* 
             * 点击启动Activity  和startActivity()同含义 
             * 表示如果该描述的PendingIntent已存在，则改变已存在的PendingIntent的Extra数据为新的PendingIntent的Extra数据。 
             */ 
            PendingIntent contentIntent = PendingIntent.getActivity(myContext, 0 , notificationIntent, PendingIntent.FLAG_UPDATE_CURRENT); 
            notification.setLatestEventInfo(myContext, contentTitle, contentText,contentIntent); 
            
            /* 
             * 用mNotificationManager的notify方法通知用户生成标题栏消息通知 
             */ 
            mNotificationManager.notify(R.string.app_name, notification); 

sendButton.setOnClickListener(new OnClickListener()  
{  
      
    @Override  
    public void onClick(View v)  
    {  
        Intent intent = new Intent(NotificationActivity.this,NotificationActivity.class);  
            PendingIntent pendingIntent = PendingIntent.getActivity(NotificationActivity.this, 0, intent, 0);  
            notification.setLatestEventInfo(NotificationActivity.this, "你的一条信息", "来自张三的信息", pendingIntent);  
            notificationManager.notify(ID,notification);  
            notificationManager.notify(ID+1, notification);  
    }  
})  

package com.study.android;  
  
import android.app.Activity;  
import android.app.Notification;  
import android.app.NotificationManager;  
import android.app.PendingIntent;  
import android.content.Context;  
import android.content.Intent;  
import android.os.Bundle;  
import android.view.View;  
import android.view.View.OnClickListener;  
import android.widget.Button;  
  
public class MainActivity extends Activity {  
    private Button startBtn;  
    private Button cancelBtn;  
    private static final int HELLO_ID = 1;  
    NotificationManager mNotificationManager;  
    Notification mNotification;  
    /** Called when the activity is first created. */  
    @Override  
    public void onCreate(Bundle savedInstanceState) {  
        super.onCreate(savedInstanceState);  
        setContentView(R.layout.main);  
          
        startBtn = (Button)findViewById(R.id.startBtn);  
        cancelBtn = (Button)findViewById(R.id.cancelBtn);  
          
        // ① 获取NotificationManager的引用   
        String ns = Context.NOTIFICATION_SERVICE;  
        mNotificationManager = (NotificationManager)this.getSystemService(ns);  
          
          
        // ② 初始化Notification  
        int icon = R.drawable.ic_launcher;  
        CharSequence tickerText = "Hello";  
        long when = System.currentTimeMillis();  
        mNotification = new Notification(icon,tickerText,when);  
        mNotification.defaults = Notification.DEFAULT_ALL;  
        mNotification.flags |= Notification.FLAG_NO_CLEAR;  
        mNotification.flags |= Notification.FLAG_SHOW_LIGHTS;  
        // ③ 定义notification的消息 和 PendingIntent  
        Context context = this;  
        CharSequence contentTitle ="My notification";  
        CharSequence contentText = "Hello World";  
        Intent notificationIntent = new Intent(this,MainActivity.class);  
        PendingIntent contentIntent = PendingIntent.getActivity(context, 0, notificationIntent,0 );  
        mNotification.setLatestEventInfo(context, contentTitle, contentText, contentIntent);  
          
        // ④ 把封装好的notification传入NotificationManager  
          
          
        // 开启通知  
        startBtn.setOnClickListener(new OnClickListener() {  
              
            @Override  
            public void onClick(View v) {  
                mNotificationManager.notify(HELLO_ID,mNotification);  
                  
            }  
        });  
          
        // 取消通知  
        cancelBtn.setOnClickListener(new OnClickListener() {  
              
            @Override  
            public void onClick(View v) {  
                mNotificationManager.cancel(HELLO_ID);  
                  
            }  
        });  
    }  
}