Sms receiver without Activity

Sms receiver without Activity

I am working on an sms receiver app but i do not need any activity.If i
use an activity there is no problem and program works fine but when i
remove main_activity from manifest and delete main_activity.xml and
main_activity.java, app cannot take sms which received.Here is my
code.Where am i wrong?
----Manifest----
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.androidexample.broadcastreceiver"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk android:minSdkVersion="15" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<receiver
android:name="com.androidexample.broadcastreceiver.IncomingSms">
<intent-filter android:priority="1000">
<action
android:name="android.provider.Telephony.SMS_RECEIVED" />
</intent-filter>
</receiver>
</application>
<uses-permission
android:name="android.permission.RECEIVE_SMS"></uses-permission>
<uses-permission android:name="android.permission.READ_SMS" />
<uses-permission
android:name="android.permission.SEND_SMS"></uses-permission>
</manifest>
----IncomingSms.java---
package com.androidexample.broadcastreceiver;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.telephony.SmsManager;
import android.telephony.SmsMessage;
import android.util.Log;
import android.widget.Toast;
public class IncomingSms extends BroadcastReceiver {
// Get the object of SmsManager
final SmsManager sms = SmsManager.getDefault();
public void onReceive(Context context, Intent intent) {
System.out.println("----------------------->>>>> GELDÝ");
// Retrieves a map of extended data from the intent.
final Bundle bundle = intent.getExtras();
try {
if (bundle != null) {
final Object[] pdusObj = (Object[]) bundle.get("pdus");
for (int i = 0; i < pdusObj.length; i++) {
SmsMessage currentMessage =
SmsMessage.createFromPdu((byte[]) pdusObj[i]);
String phoneNumber =
currentMessage.getDisplayOriginatingAddress();
String senderNum = phoneNumber;
String message = currentMessage.getDisplayMessageBody();
Log.i("SmsReceiver", "senderNum: "+ senderNum + ";
message: " + message);
int duration = Toast.LENGTH_LONG;
Toast toast = Toast.makeText(context, "senderNum: "+
senderNum + ", message: " + message, duration);
toast.show();
} // end for loop
} // bundle is null
} catch (Exception e) {
Log.e("SmsReceiver", "Exception smsReceiver" +e);
}
}
}