Android Resume App from notification status bar

Hello, i have a tabbed application. I create a notification in status bar when user taps the home button and the app goes to the background. Now i want when the user clicks the notification in status bar, to resume the app from where he was (just like when choosing the app from app manager). I read many examples but i couldn't make it work. Here is some of the code

$.tabGroup.addEventListener('open', function(e) {
    var activity = $.tabGroup.activity;
 
    // onPause
    activity.addEventListener('pause', function() {
        // Intent object to launch the application
        var intent = Ti.Android.createIntent({
            action: Ti.Android.ACTION_MAIN,
            flags : Ti.Android.FLAG_ACTIVITY_CLEAR_TOP | Ti.Android.FLAG_ACTIVITY_SINGLE_TOP,
            className : 'com.company.myapp.myAppActivity',
        });
        intent.addCategory(Ti.Android.CATEGORY_LAUNCHER);
 
        // Create a PendingIntent to tie together the Activity and Intent
        var pending = Titanium.Android.createPendingIntent({
            activity: Ti.Android.currentActivity,
            intent : intent,
            flags : Titanium.Android.FLAG_UPDATE_CURRENT,
            type: Ti.Android.PENDING_INTENT_FOR_ACTIVITY
        });
 
        // Create the notification
        var notification = Titanium.Android.createNotification({
            icon : "/images/appicon.png",
            contentTitle : 'My App Name',
            contentText : 'Click to return to the application.',
            contentIntent : pending,
            flags: Ti.Android.FLAG_ONGOING_EVENT | Ti.Android.FLAG_NO_CLEAR
        });
        Titanium.Android.NotificationManager.notify(1, notification);
    }
}

At the moment, notification created successfully BUT when i tap the notification the app does not resume, but starts from scratch. I tried many flags in the createIntent(), createPendingIntent(), createNotification() but couldn't make it work. Which are the correct flags? Do i need to make changes in tiapp.xml file? Is the place i make and call notification wrong (inside tabGroup's 'open' eventListener and inside activity's 'pause' eventListener)? Is there any working example that creates and resumes app from notification in status bar?