Intent intent = new Intent(this, NotificationReceiverActivity.class);
        PendingIntent pendingIntent = PendingIntent.getActivity(this, (int) System.currentTimeMillis(), intent, 0);

        Notification notification = new Notification.Builder(this).setContentTitle("Notification Test")
                                    .setContentText("Hello from CreateNotificationActivity")
                                    .setSmallIcon(R.drawable.notification_icon)
                                    .setContentIntent(pendingIntent)
                                    .addAction(R.drawable.notification_icon, "Action 1", pendingIntent)
                                    .addAction(R.drawable.notification_icon, "Action 2", pendingIntent)
                                    .addAction(R.drawable.notification_icon, "Action 3", pendingIntent)
                                    .build();
        NotificationManager notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
        notification.flags = Notification.FLAG_AUTO_CANCEL;
        notificationManager.notify(0, notification);