Android system broadcast SMS

1.Activity

package com.alan.broadcast1;

import android.content.IntentFilter;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
/**
 * Created by CanxinQiu on 2016/9/1.
 * Description: Broadcast lesson, register receiver in Java code
 * SMS_RECEIVED example
 *
 */
public class MainActivity extends AppCompatActivity {
    private MyReceiver myReceiver;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        IntentFilter filter = new IntentFilter();
        filter.addAction("android.provider.Telephony.SMS_RECEIVED");
        myReceiver = new MyReceiver();
        registerReceiver(myReceiver,filter);
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        unregisterReceiver(myReceiver);
    }
}
      

2.BroadcastReceiver      

/*
 * Copyright (c) 2016 All Rights Reserved By FFCS
 */

package com.alan.broadcast1;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.telephony.SmsMessage;
import android.util.Log;

/**
 * Created by CanxinQiu on 2016/8/31.
 * Description: Broadcast lesson, is listen system,include register receiver in Manifest
 *              and in BroadcastReceiver to receive the action,than do something.
 *              SMS_RECEIVED example
 */
public class MyReceiver extends BroadcastReceiver{
    @Override
    public void onReceive(Context context, Intent intent) {

        Log.i("Broadcast","Received SMS_Message");
        //get sms data,send to broadcast receiver
        Bundle bundle = intent.getExtras();
        //pdus is the data's key,so that to get data,that is array form
        Object object [] = (Object[])bundle.get("pdus");
        //only include 140 byte,if sms's data may too long ,
        // that we shall create a array which length suitable
        SmsMessage [] messages = new SmsMessage[object.length];
        for (int i = 0; i < messages.length; i++) {
            messages[i] = SmsMessage.createFromPdu((byte [])object [i]);
            //get message content
            Log.i("SMS body",messages[i].getMessageBody());
        }
        //get sender's number,number is at the beginning of message array
        Log.i("SMS_TELPHONE NUMBER",messages[0].getOriginatingAddress());

    }
}