Android push notification not receive when internet is ON - push-notification

Question

1) I have implement the push notification.It works fine when device is connected to Internet.(i-e) receive notification from server side
2) when the device is not connected to Internet. if server send the push message.and then when the device is connected to Internet..it not receiving the push message .. this is the problem
3) It like to implement push message like whats app..when the device is connect to Internet ..it should receive the push message..
public class GcmIntentService extends GcmListenerService {
#Override
public void onMessageReceived(String from, Bundle data) {
String message = data.getString("title");
String post_id=data.getString("id");
boolean pushactive= SharedPreference.getInstance().getBool(this,"pushactive");
if(pushactive)
generateNotification(message,post_id);
}
#Override
public void onCreate() {
super.onCreate();
System.out.println("inside GcmListenerService");
}
public void generateNotification(String message,String post_id)
{
Random random = new Random();
int m = random.nextInt(9999 - 1000) + 1000;
Intent intent = new Intent(this, NewsDetailActivity.class);
intent.putExtra("isPush", true);
intent.putExtra("post_id",post_id);
intent.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP | Intent.FLAG_ACTIVITY_CLEAR_TOP);
NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(this)
.setSmallIcon(R.drawable.ic_launcher)
.setContentText(message)
.setContentTitle("EGToday")
.setAutoCancel(true)
.setContentIntent(PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT));
notificationManager.notify(m, mBuilder.build());
}
}
how to achieve this?
This is my intent service class.
this is my manifeast
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.egt">
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.CAMERA"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.GET_ACCOUNTS" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<permission android:name="com.egt.permission.C2D_MESSAGE"
android:protectionLevel="signature" />
<uses-permission android:name="com.egt.permission.C2D_MESSAGE" />
<uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />
<application
android:name="com.egt.Constants.NetworkCall"
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity android:name=".View.SplashPage">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:windowSoftInputMode="stateHidden|adjustPan"
android:name=".View.MainActivity"
android:screenOrientation="portrait">
</activity>
<activity
android:name=".View.NewsDetailActivity"
android:screenOrientation="portrait">
</activity>
<activity
android:name=".View.SearchActivity"
android:screenOrientation="portrait">
</activity>
<receiver
android:name="com.google.android.gms.gcm.GcmReceiver" android:exported="true"
android:permission="com.google.android.c2dm.permission.SEND" >
<intent-filter>
<action android:name="com.google.android.c2dm.intent.RECEIVE" />
<action android:name="com.google.android.c2dm.intent.REGISTRATION" />
<category android:name="com.egt" />
</intent-filter>
</receiver>
<service
android:name="com.egt.PushNotification.GcmIntentService"
android:exported="false" >
<intent-filter>
<action android:name="com.google.android.c2dm.intent.RECEIVE" />
</intent-filter>
</service>
<service android:name="com.egt.PushNotification.GcmRegistration"
android:exported="false" />
</application>
</manifest>

Answer 1

In your server side set delayWhileIdle(true)
If the device is connected but idle, the message will still be
delivered right away unless the delay_while_idle flag is set to true.
Otherwise, it will be stored in the GCM servers until the device is
awake. And that's where the collapse_key flag plays a role: if there
is already a message with the same collapse key (and registration ID)
stored and waiting for delivery, the old message will be discarded and
the new message will take its place (that is, the old message will be
collapsed by the new one).
Ex.
Message message = new Message.Builder().delayWhileIdle(true).addData(MESSAGE_KEY,text).build();