broadcast receives, SMS firewall

AndroidManifest.xml
permissions:

<uses-permission android:name="android.permission.RECEIVE_SMS"/>

<receiver
            android:name=".SmsReceiver"
            android:enabled="true"
            android:exported="true" >
            <intent-filter android:priority="1000">//设置优先级(-1000到1000)，1000为优先级最高。
               <action android:name="android.provider.Telephony.SMS_RECEIVED"/>
            </intent-filter>
        </receiver>

broadcast receives，SmsReceives.java

public class SmsReceiver extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {
        //拿到短信的信息
        //短信内容封装在intent中
        Bundle bundle = intent.getExtras();
        //以pdus为键，取出一个object数组，数组中的每一个元素，都是一条短信
        Object[] objects = (Object[]) bundle.get("pdus");

        //拿到广播中的所有短信
        for (Object object : objects) {
            //通过pdu来构造短信
            SmsMessage sms = SmsMessage.createFromPdu((byte[])object);
            if(sms.getOriginatingAddress().equals("138438")){
                //阻止其他广播接收者收到这条广播
                abortBroadcast();
//              SmsManager.getDefault().sendTextMessage(sms.getOriginatingAddress(), null, "你是个好人", null, null);
            }
//          System.out.println(sms.getMessageBody());

        }

    }