<!--这段代码添加在application之间就可以了。。。-->
<receiver android:name=".MyBroadcast"android:enabled="true"><intent-filter><action android:name="android.intent.action.EDIT"/></intent-filter>
</receiver>

private BroadcastReceiver receiver;receiver=new CallReceiver();
//动态注册广播地址...
registerReceiver(receiver,new IntentFilter("android.intent.action.EDIT"));
//解除注册的广播地址，一定要对广播机制进行注销...
unregisterReceiver(receiver);

package com.example.broadcast_receiver;import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.widget.Toast;public class MyBroadcast extends BroadcastReceiver{@Overridepublic void onReceive(Context context, Intent intent) {// TODO Auto-generated method stubString str=intent.getStringExtra("msg");Toast.makeText(context, str, Toast.LENGTH_SHORT).show();}
}

package com.example.broadcast_receiver;import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.content.Intent;
public class MainActivity extends Activity implements View.OnClickListener {private Intent intent=new Intent(Intent.ACTION_EDIT);@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);findViewById(R.id.broadcast).setOnClickListener(this);}@Overridepublic 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;}@Overridepublic void onClick(View v) {// TODO Auto-generated method stubswitch (v.getId()) {case R.id.broadcast:intent.putExtra("msg", "aa");MainActivity.this.sendBroadcast(intent);break;}}}

package com.example.broadcast_receiver;import android.app.Service;
import android.content.Intent;
import android.media.MediaPlayer;
import android.os.IBinder;public class MyService extends Service{private MediaPlayer media;@Overridepublic IBinder onBind(Intent intent) {// TODO Auto-generated method stubreturn null;}@Overridepublic void onCreate(){super.onCreate();media=MediaPlayer.create(MyService.this, R.raw.a);MyService.this.media.prepare();MyService.this.media.start();media.setLooping(true);}@Overridepublic void onDestroy(){super.onDestroy();}@Overridepublic void onStart(Intent intent,int startId){super.onStart(intent, startId);}
}

package com.example.broadcast_receiver;import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.widget.Toast;public class MyBroadcast extends BroadcastReceiver{@Overridepublic void onReceive(Context context, Intent intent) {// TODO Auto-generated method stubIntent newintent =new Intent(context,MyService.class);context.startService(newintent);String str=intent.getStringExtra("msg");Toast.makeText(context, str, Toast.LENGTH_SHORT).show();}
}