Android : Height of a custom ongoing notification in the notification drawer

I am trying to create a custom ongoing notification whose height is about 200dp (less than 256) but only a normal notification (64dp) appears in the notification drawer. I can't even expand it.

I create the notification like that :

button3.setOnClickListener(new OnClickListener() {
        @Override
        public void onClick(View v) {

            RemoteViews remoteViews = new RemoteViews(getPackageName(), R.layout.custom_notification);
            remoteViews.setImageViewResource(R.id.notif3_image, R.drawable.ic_action_add_group);
            remoteViews.setTextViewText(R.id.notif3_title, "My custom notification title");
            remoteViews.setTextViewText(R.id.notif3_text, "My custom notification text");

            PendingIntent pendingIntent = PendingIntent.getActivity(
                    MainActivity.this, 0,
                    new Intent(MainActivity.this, MainActivity.class), 0);

            Notification.Builder notificationBuilder  = new Notification.Builder(MainActivity.this)
            .setContent(remoteViews)
            .setSmallIcon(R.drawable.ic_podcast1)
            .setOngoing(true)
            .setContentIntent(pendingIntent);

            Notification notification = notificationBuilder.build() ;

            notificationManager.notify(33, notification);
        }
    });

Thanks for you help