Broadcast Receiver in Android Application.(Sending Message one Emulator to another Emulator.

 Broadcast Receiver

In this project we make an application which will be able to broadcast a event say a message to a sender when it receive a particular type of event say a particular type of message.

We extend this application to the application we made to send a message.

1)create  a new java file named as ReceiveSms( in the package which we use in developing application for sending a sms) and extends with BroadcastReceiver and match it as:

package com.sartaj.sms;   //package name

import android.content.BroadcastReceiver;

import android.content.Context;

import android.content.Intent;

import android.os.Bundle;

import android.telephony.SmsManager;

import android.telephony.SmsMessage;

public class RecieveSms extends BroadcastReceiver {

       public void onReceive(Context arg0, Intent arg1) {

              // TODO Auto-generated method stub

              // ---get the SMS message passed in---

              Bundle bundle = arg1.getExtras();

              SmsMessage[] msgs = null;

      

              String str2 = "";

              if (bundle != null) {

                     // ---retrieve the SMS message received---

                     Object[] pdus = (Object[]) bundle.get("pdus");

                     msgs = new SmsMessage[pdus.length];

                     for (int i = 0; i < msgs.length; i++) {

                          

                           msgs[i] = SmsMessage.createFromPdu((byte[]) pdus[i]);

                          

                           str2 = msgs[i].getOriginatingAddress();

                          

                     }

             

                     SmsManager sm = SmsManager.getDefault();

             

                     sm.sendTextMessage(str2, null, "I m in Metting", null, null);

             

              }

       }

}

2)Add the permission(android.permission.RECEIVE_SMS)in AndroidManifest.xml also add the receiver attribute in application attribute of AndriodManifest.xml:

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

      package="com.sartaj.sms"

      android:versionCode="1"

      android:versionName="1.0">

    <uses-sdk android:minSdkVersion="9" />

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

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

    <application android:icon="@drawable/icon" android:label="@string/app_name">

        <activity android:name=".Sms"

                  android:label="@string/app_name">

            <intent-filter>

                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />

            </intent-filter>

        </activity>

        <receiver android:name="RecieveSms">

            <intent-filter>

                <action android:name="android.provider.Telephony.SMS_RECEIVED"></action>

            </intent-filter>

        </receiver>

      

    </application>

</manifest>

3)Now run the application on emulator say 5554.Create another emulator say 5556 .When we send a message from 5556 to 5554 it will automatically send a message to the sender that is 5556.