Random Activity from Notification without repetition

In a previous question I asked about how to shuffle a list of activities, pick one, add it to intent and prevent repetition of already visited Activities, and I was fortunate to get the help of a very nice gentleman (@PedroFernandes) and solve my problem, here's the LINK to that question.

following on the same matter, I tried to implement that exact same method inside a Notification, what I want is to show a Notification daily in my app that takes the user to a different Activity every time. Although I managed to achieve this, my previous problem persists, the activities.remove(0); is never triggered, and I keep getting duplicates, and the list never goes empty.

here's my Notification that extends a BroadcastReceiver:

Notification01.java

public class Notification01 extends BroadcastReceiver{

    private static final int NOTIFICATION_ID = 1;
    PendingIntent pendingIntent;
    Notification notification;
    TaskStackBuilder taskStackBuilder;

    @Override
    public void onReceive(Context context, Intent intent) {

        ArrayList<Class> activities = new ArrayList<>();
            activities.add(Activity01.class);
            activities.add(Activity02.class);
            activities.add(Activity03.class);
            activities.add(Activity04.class);
            activities.add(Activity05.class);
            activities.add(Activity06.class);
            activities.add(Activity07.class);
            activities.add(Activity08.class);
            activities.add(Activity09.class);
            activities.add(Activity10.class);

        if (activities.size()==0){
            Toast.makeText(context, "ArrayList Empty", Toast.LENGTH_SHORT).show();
        }
        Collections.shuffle(activities);

        Class activityToShow = activities.get(0);

        intent = new Intent(context, activityToShow);
        activities.remove(0);
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

        taskStackBuilder = TaskStackBuilder.create(context);
        taskStackBuilder.addParentStack(Activity01.class);
        taskStackBuilder.addNextIntent(intent);

        pendingIntent = taskStackBuilder.getPendingIntent(1, PendingIntent.FLAG_CANCEL_CURRENT);

        notification = new NotificationCompat.Builder(context)
                .setSmallIcon(R.drawable.ic_stat_logo_white)
                .setColor(ContextCompat.getColor(context, R.color.colorPrimary))
                .setContentTitle("Notification Title")
                .setContentText("Notification content")
                .setStyle(new NotificationCompat.BigTextStyle().bigText("Notification Big Text"))
                .setAutoCancel(true)
                .setDefaults(Notification.DEFAULT_ALL)
                .setPriority(Notification.PRIORITY_HIGH)
                .setContentIntent(pendingIntent)
                .build();

        NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
        notificationManager.notify(NOTIFICATION_ID, notification);

    }
}

All help is appreciated, and I should also mention that I need this to persevere through reboots and app closes, I'm not sure if I should use SharedPreferences or Receivers ??!! I'm very new to this and have no Java experience whatsoever.

Many thanks in advance.