Scheduling notifications ahead of time

One of the most common forms of creating a notification is asking players to come back and play the game at a later time. This encourages users to continue playing our game and to come back multiple times. We can do this by setting a delivery time in the future using the following steps:

1. Open up the NotificationsController script and add the following function to it:

public void ShowNotification(string title, string body, 
                                DateTime deliveryTime)
{
    IGameNotification notification = 
               notificationsManager.CreateNotification();

    if (notification != null)
    {
        notification.Title = title;
        notification.Body = body;
        notification.DeliveryTime = deliveryTime;

        notificationsManager.ScheduleNotification(notification);
    }
}

This function takes in three parameters – the title, the body, and the time at which to send the notification.

2. This function requires the use of the System...