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());
            
        }
    }
}

效果如下：