要在Android应用中使用BroadcastReceiver来接收广播消息，需要在代码中注册BroadcastReceiver。以下是一种设置registerReceiver的方法：
public class MyBroadcastReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
// 处理接收到的广播消息
}
}
MyBroadcastReceiver myReceiver = new MyBroadcastReceiver();
IntentFilter intentFilter = new IntentFilter();
intentFilter.addAction("com.example.broadcast.MY_ACTION");
registerReceiver(myReceiver, intentFilter);
<receiver android:name=".MyBroadcastReceiver">
<intent-filter>
<action android:name="com.example.broadcast.MY_ACTION" />
</intent-filter>
</receiver>
通过以上步骤，就可以在Android应用中使用BroadcastReceiver来接收广播消息并进行相应的处理。需要注意的是，注册的BroadcastReceiver需要在不需要接收广播消息时进行取消注册，以避免内存泄霏。
