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    copied!<p>For GCM implementation. Create a new project and add GCM.jar file to its buildpath. Generate the Manifiest file as per the below.</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;manifest xmlns:android="http://schemas.android.com/apk/res/android" package="YOUR PACKAGE NAME" android:versionCode="1" android:versionName="1.0" &gt; &lt;uses-sdk android:minSdkVersion="8" /&gt; &lt;uses-permission android:name="android.permission.INTERNET" /&gt; &lt;uses-permission android:name="android.permission.GET_ACCOUNTS" /&gt; &lt;uses-permission android:name="android.permission.WAKE_LOCK" /&gt; &lt;permission android:name="YOUR PACKAGE NAME.permission.C2D_MESSAGE" android:protectionLevel="signature" /&gt; &lt;uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" /&gt; &lt;uses-permission android:name="YOUR PACKAGE NAME.permission.C2D_MESSAGE" /&gt; &lt;uses-permission android:name="android.permission.GET_ACCOUNTS" /&gt; &lt;uses-permission android:name="android.permission.USE_CREDENTIALS" /&gt; &lt;application android:icon="@drawable/ic_launcher" android:label="@string/app_name" &gt; &lt;activity android:name=".DemoGCMPush" android:label="@string/app_name" &gt; &lt;intent-filter&gt; &lt;action android:name="android.intent.action.MAIN" /&gt; &lt;category android:name="android.intent.category.LAUNCHER" /&gt; &lt;/intent-filter&gt; &lt;/activity&gt; &lt;receiver android:name="com.google.android.gcm.GCMBroadcastReceiver" android:permission="com.google.android.c2dm.permission.SEND" &gt; &lt;intent-filter&gt; &lt;action android:name="com.google.android.c2dm.intent.RECEIVE" /&gt; &lt;action android:name="com.google.android.c2dm.intent.REGISTRATION" /&gt; &lt;category android:name="YOUR PACKAGE NAME" /&gt; &lt;/intent-filter&gt; &lt;/receiver&gt; &lt;service android:name="YOUR PACKAGE NAME.GCMIntentService" /&gt; &lt;/application&gt; &lt;/manifest&gt; </code></pre> <p>Then in your main activity add the following code to register. replace the SENDER_ID with the 12 digit project Id from the URL.</p> <pre><code>GCMRegistrar.checkDevice(this); GCMRegistrar.checkManifest(this); final String regId = GCMRegistrar.getRegistrationId(this); if (regId.equals("")) { GCMRegistrar.register(this, SENDER_ID); } else { Log.v(TAG, "Already registered"); } </code></pre> <p>and finally add second class of GCMIntentService.java for handling GCM messages.</p> <pre><code>import android.app.IntentService; import android.app.Notification; import android.app.NotificationManager; import android.app.PendingIntent; import android.content.Context; import android.content.Intent; import android.os.Bundle; import android.util.Log; import com.google.android.gcm.GCMBaseIntentService; /** * {@link IntentService} responsible for handling GCM messages. */ public class GCMIntentService extends GCMBaseIntentService { @SuppressWarnings("hiding") private static final String TAG = "GCMIntentService"; public GCMIntentService() { super("SENDER ID"); } /** * Issues a notification to inform the user that server has sent a message. */ private static void generateNotification(Context context, String message) { long when = System.currentTimeMillis(); NotificationManager notificationManager = (NotificationManager) context .getSystemService(Context.NOTIFICATION_SERVICE); Notification notification = new Notification(R.drawable.ic_launcher, message, when); String title = context.getString(R.string.app_name); Intent notificationIntent = new Intent(context, SamplePushActivity.class); // set intent so it does not start a new activity notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP); PendingIntent intent = PendingIntent.getActivity(context, 0, notificationIntent, 0); notification.setLatestEventInfo(context, title, message, intent); notification.flags |= Notification.FLAG_AUTO_CANCEL; notificationManager.notify(0, notification); } @Override protected void onError(Context arg0, String arg1) { // TODO Auto-generated method stub } @Override protected void onMessage(Context arg0, Intent arg1) { Log.d("GCM", "RECIEVED A MESSAGE"); // Get the data from intent and send to notificaion bar generateNotification(arg0, arg1.getStringExtra("message")); } @Override protected void onRegistered(Context arg0, String arg1) { // TODO Auto-generated method stub } @Override protected void onUnregistered(Context arg0, String arg1) { // TODO Auto-generated method stub } } </code></pre>
 

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