Android开发之使用本地广播

直接代码，不解释，看不明白，看前面几篇，大牛就别看了

package com.example.mybroadcastreceiver;

import android.os.Bundle;

import android.app.Activity;

import android.content.BroadcastReceiver;

import android.content.Context;

import android.content.Intent;

import android.content.IntentFilter;

import android.support.v4.content.LocalBroadcastManager;

import android.view.Menu;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.Toast;

public class MainActivity extends Activity {

private IntentFilter intentFilter;

private LocalReceiver localReceiver;

private LocalBroadcastManager localBroadcastManager;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

localBroadcastManager=LocalBroadcastManager.getInstance(this); //获取实例

Button button=(Button)findViewById(R.id.button);

button.setOnClickListener(new OnClickListener(){

@Override

public void onClick(View v) {

// TODO Auto-generated method stub

Intent intent=new Intent("com.example.broadcasttest.LOCAL_BROADCAST");

//sendBroadcast(intent);

//sendOrderedBroadcast(intent,null);

localBroadcastManager.sendBroadcast(intent); //发送本地广播

}

});

intentFilter=new IntentFilter();

intentFilter.addAction("com.example.broadcasttest.LOCAL_BROADCAST");

localReceiver=new LocalReceiver();

localBroadcastManager.registerReceiver(localReceiver, intentFilter); //注册本地广播监听器

}

protected void onDestroy()

{

super.onDestroy();

localBroadcastManager.unregisterReceiver(localReceiver);

}

class LocalReceiver extends BroadcastReceiver{

public void onReceive(Context context,Intent intent)

{

Toast.makeText(context, "received local broadcast", Toast.LENGTH_SHORT).show();

}

}

@Override

public boolean onCreateOptionsMenu(Menu menu) {

// Inflate the menu; this adds items to the action bar if it is present.

getMenuInflater().inflate(R.menu.main, menu);

return true;

}

}