LocalBroadcastManager 的使用

一、使用本地广播发送一条广播（本例为自己发送自己接收，本地广播也可以是其他应用接收）然后接收到广播时回调Receiver类中的回调方法onReceive（）在此方法中自定义发出通知

代码

 package com.qf.broadcastreceiver06;

 import android.app.Activity;
 import android.app.Notification;
 import android.app.NotificationManager;
 import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.Intent;
 import android.content.IntentFilter;
 import android.graphics.BitmapFactory;
 import android.os.Bundle;
 import android.support.v4.app.NotificationCompat;
 import android.support.v4.content.LocalBroadcastManager;
 import android.view.View;

 public class MainActivity extends Activity {

     LocalBroadcastManager localBroadcastMgr;//本地广播管理器

     MyReceiver myReceiver;
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);

         //获取本地广播管理器对象
         localBroadcastMgr=LocalBroadcastManager.getInstance(getApplicationContext());

         myReceiver=new MyReceiver();
         //注册本地广播接收器
         localBroadcastMgr.registerReceiver(myReceiver, new IntentFilter("com.qf.broadcast.disen"));
     }

     public void sendBroadcast(View v){//发送本地广播

         Intent intent=new Intent("com.qf.broadcast.disen");

         //通过本地广播管理器来发送广播
         localBroadcastMgr.sendBroadcast(intent);
     }

     @Override
     protected void onDestroy() {
         super.onDestroy();

         //取消注册本地广播接收器
         localBroadcastMgr.unregisterReceiver(myReceiver);
     }

     //定义广播接收器
     class MyReceiver extends BroadcastReceiver{
         @Override
         public void onReceive(Context context, Intent intent) {
             // TODO Auto-generated method stub
             //发送通知

             //获取系统的通知管理器组件
             NotificationManager notifyMgr=
                     (NotificationManager) context.getSystemService(NOTIFICATION_SERVICE);

             //实例化广播构造器
             NotificationCompat.Builder builder=
                     new NotificationCompat.Builder(getApplicationContext());

             //设置通知的小图标、标题、内容、滚动内容、动作等
             builder.setSmallIcon(android.R.drawable.ic_menu_call)
                    .setLargeIcon(BitmapFactory.decodeResource(getResources(), R.drawable.ic_launcher))
                    .setContentTitle("提示")
                    .setContentText("最新消息：暂定今天下午5点开会，请准时回来.....")
                    //设置通知在状态栏里滚动
                    .setTicker("最新消息：暂定今天下午5点开会，请准时回来.....最新消息：暂定今天下午5点开会，请准时回来.....最新消息：暂定今天下午5点开会，请准时回来.....")
                    .setPriority(NotificationCompat.PRIORITY_MAX)
                    .setDefaults(Notification.DEFAULT_SOUND);

             notifyMgr.notify(1, builder.build());

         }
     }
 }

MainActivity.java

效果如下：