android 广播接收完整源码

package com.szy.broadcast.activity; import android.app.Activity; import android.content.Intent; import android.content.IntentFilter; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import com.szy.broadcast.receiver.SecondReceiver; public class MainActivity extends Activity { protected static final String ACTION = "com.szy.broadcast.ACTION"; private Button btnBroadcast; private Button registerReceiver; private Button unregisterReceiver; private SecondReceiver receiver; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); btnBroadcast=(Button)findViewById(R.id.btnBroadcast); btnBroadcast.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { Intent intent=new Intent(); intent.setAction(ACTION); sendBroadcast(intent); } }); registerReceiver=(Button)findViewById(R.id.btnregisterReceiver); registerReceiver.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { receiver=new SecondReceiver(); IntentFilter filter=new IntentFilter(); filter.addAction(ACTION); registerReceiver(receiver, filter); } }); unregisterReceiver=(Button)findViewById(R.id.btnunregisterReceiver); unregisterReceiver.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { unregisterReceiver(receiver); } }); } }