**Main Activity**

package com.example.gcmdemo;

import android.app.Activity;
import android.app.PendingIntent;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;

import com.google.android.gcm.GCMRegistrar;

public class MainActivity extends Activity {

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        GCMRegistrar.checkDevice(this);
        GCMRegistrar.checkManifest(this);
        String regId = GCMRegistrar.getRegistrationId(this);
        if (regId.equals("")) {
          GCMRegistrar.register(this, "160577205208");
          Log.e("Msg", "registered");
          //Log.e("Msg", "registeredid  "+regId);
        } else {
          Log.e("Msg", "Already registered");
        }
        

    }
   
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }  
}


***********************************************************************MyIntentService*********************************************************


package com.example.gcmdemo;


import java.io.InputStream;
import java.util.ArrayList;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;

import android.annotation.SuppressLint;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.os.PowerManager;
import android.os.PowerManager.WakeLock;
import android.util.Log;
import android.widget.Toast;

import com.google.android.gcm.GCMBaseIntentService;

public class MyIntentService extends GCMBaseIntentService{
  InputStream is = null;
public MyIntentService(){
 super(Utils.GCMSenderId);
 }

@Override
 protected void onError(Context context, String regId) {
 // TODO Auto-generated method stub
 Log.e("", "error registration id : "+regId);
 }

@Override
 protected void onMessage(Context context, Intent intent) {
 // TODO Auto-generated method stub
 handleMessage(context, intent);
 }

@SuppressLint("ParserError")
@Override
 protected void onRegistered(Context context, String regId) {
 // TODO Auto-generated method stub
 try{
Log.e("", "registration id : "+regId);
Toast.makeText(context, "hi "+regId,Toast.LENGTH_LONG).show();
 handleRegistration(context, regId);
 HttpClient httpclient = new DefaultHttpClient();
 ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
 HttpPost httppost = new HttpPost("http://192.168.1.100/aa/cloud.php");
 nameValuePairs.add(new BasicNameValuePair("regid", regId));
 httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));

 HttpResponse response = httpclient.execute(httppost);
 Log.e("log_tag", ""+httppost.toString());
 
 if( response == null ){

 }else{
   HttpEntity entity = response.getEntity();
     is = entity.getContent();
     
     Log.e("log_tag", ""+is.toString());
 }
 


// convert response to string
/*
 BufferedReader reader = new BufferedReader(new InputStreamReader(
     is, "iso-8859-1"));
 StringBuilder sb = new StringBuilder();
 String line = null;
 while ((line = reader.readLine()) != null) {
   sb.append(line + "\n");
 }
 is.close();
 String result = sb.toString();
 Log.e("res",result);*/
} catch (Exception e) {
 Log.e("log_tag", "Error converting result " + e.toString());
}

 }

@Override
 protected void onUnregistered(Context context, String regId) {
 // TODO Auto-generated method stub

 }

@SuppressWarnings({ "deprecation", "static-access" })
 private void handleMessage(Context context, Intent intent) {
 // TODO Auto-generated method stub
 Utils.notiMsg = intent.getStringExtra("msg");
 Utils.notiTitle = intent.getStringExtra("title");
 Utils.notiType = intent.getStringExtra("type");
 Utils.notiUrl = intent.getStringExtra("url");

 int icon = R.drawable.ic_launcher; // icon from resources
 CharSequence tickerText = Utils.notiTitle;//intent.getStringExtra("me"); // ticker-text

 long when = System.currentTimeMillis(); // notification time
 CharSequence contentTitle = ""+Utils.notiMsg; //intent.getStringExtra("me"); // message title

NotificationManager notificationManager =
 (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
 Notification notification = new Notification(icon, tickerText, when);
 Intent notificationIntent = new Intent(context, MainActivity.class);
 PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, notificationIntent, 0);

notification.setLatestEventInfo(context, contentTitle, "", pendingIntent);
 notification.flags|=notification.FLAG_INSISTENT|notification.FLAG_AUTO_CANCEL;
 notification.defaults |= Notification.DEFAULT_SOUND|Notification.DEFAULT_LIGHTS;
 notification.vibrate=new long[] {100L, 100L, 200L, 500L};
 notificationManager.notify(1, notification);
 Utils.notificationReceived=true;
 PowerManager pm = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
 WakeLock wl = pm.newWakeLock(PowerManager.FULL_WAKE_LOCK | PowerManager.ACQUIRE_CAUSES_WAKEUP, "TAG");
 wl.acquire();

 }

 private void handleRegistration(Context context, String regId) {
 // TODO Auto-generated method stub
 Utils.registrationId = regId;
 Log.e("", "registration id : "+regId);

 }
}


***********************************************************************MyIntentService*******************************************************


****Utils****


package com.example.gcmdemo;

import android.app.Application;

public class Utils extends Application{

public static String GCMSenderId = "160577205208";
 public static boolean notificationReceived;
 public static String notiTitle="",notiType="",notiMsg="",notiUrl="",registrationId = "";

}
******************

*****menifest********
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.gcmdemo"
     android:versi
     android:versi >

    <uses-sdk
         android:minSdkVersi
         android:targetSdkVersi />

    <application
         android:ic
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name=".MainActivity"
            android:label="@string/title_activity_main" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
       <receiver
 android:name="com.google.android.gcm.GCMBroadcastReceiver"
  android:permissi >
 <intent-filter>
 
 <!-- Receives the registration id. -->
 <action android:name="com.google.android.c2dm.intent.REGISTRATION" />
 <category android:name="com.example.gcmdemo" />
 </intent-filter>
 <intent-filter>
            <action android:name="com.google.android.c2dm.intent.RECEIVE" />
            <category android:name="com.example.gcmdemo" />
        </intent-filter>
      
 
 </receiver>
        <service android:name="com.example.gcmdemo.MyIntentService" android:enabled="true" />
    </application>
    <uses-permission android:name="android.permission.VIBRATE" />
  <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.GET_ACCOUNTS" />
    <uses-permission android:name="android.permission.WAKE_LOCK" />
    <uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />
  
    <permission android:name="com.example.gcmdemo.permission.C2D_MESSAGE" 
         android:protecti />
    <uses-permission android:name="com.example.gcmdemo.permission.C2D_MESSAGE" />
</manifest>