Android中的广播和广播接收器代码实例

public class MyReceiver extends BroadcastReceiver
{
         public MyReceiver()
         {
                   Log.i(TAG,"MyReceiver");
         }
       
         //可用Intent的getAction()区分接收到的不同广播
         @Override
         public void onReceive(Context arg0, Intent arg1)
         {
                   String action=intent.getAction();
                   //TO-DO LIST
         }
 
}

//实例化该BroadcastReceiver
MyReceiver mReceiver=new MyReceiver();
//设置唯一action，用Intent发送
Intent intent=new Intent();
intent.setAction(str);
sendBroadcast(intent);

IntentFilter filter1=new IntentFilter();
filter1.addAction(str);
registerReceiver(mReceiver,filter1);

unregisterReceiver(mReceiver);