/// <summary>
/// Schedules a notification to be delivered.
/// </summary>
/// <param name="notification">The notification to deliver.</param>
public PendingNotification ScheduleNotification(IGameNotification notification)
{
if (!Initialized)
{
throw new InvalidOperationException("Must call Initialize() first.");
}
if (notification == null || Platform == null)
{
return(null);
}
// If we queue, don't schedule immediately.
// Also immediately schedule non-time based deliveries (for iOS)
if ((mode & OperatingMode.Queue) != OperatingMode.Queue ||
notification.DeliveryTime == null)
{
Platform.ScheduleNotification(notification);
}
else if (!notification.Id.HasValue)
{
// Generate an ID for items that don't have one (just so they can be identified later)
int id = Math.Abs(DateTime.Now.ToString("yyMMddHHmmssffffff").GetHashCode());
notification.Id = id;
}
// Register pending notification
var result = new PendingNotification(notification);
PendingNotifications.Add(result);
return(result);
}
// Clear foreground notifications and reschedule stuff from a file
private void OnForegrounding()
{
PendingNotifications.Clear();
Platform.OnForeground();
// Deserialize saved items
IList <IGameNotification> loaded = Serializer?.Deserialize(Platform);
// Foregrounding
if ((mode & OperatingMode.ClearOnForegrounding) == OperatingMode.ClearOnForegrounding)
{
// Clear on foregrounding
Platform.CancelAllScheduledNotifications();
// Only reschedule in reschedule mode, and if we loaded any items
if (loaded == null ||
(mode & OperatingMode.RescheduleAfterClearing) != OperatingMode.RescheduleAfterClearing)
{
return;
}
// Reschedule notifications from deserialization
foreach (IGameNotification savedNotification in loaded)
{
if (savedNotification.DeliveryTime > DateTime.Now)
{
PendingNotification pendingNotification = ScheduleNotification(savedNotification);
pendingNotification.Reschedule = true;
}
}
}
else
{
// Just create PendingNotification wrappers for all deserialized items.
// We're not rescheduling them because they were not cleared
if (loaded == null)
{
return;
}
foreach (IGameNotification savedNotification in loaded)
{
if (savedNotification.DeliveryTime > DateTime.Now)
{
PendingNotifications.Add(new PendingNotification(savedNotification));
}
}
}
}
/// <summary>
/// Check pending list for expired notifications, when in queue mode.
/// </summary>
protected virtual void Update()
{
if ((mode & OperatingMode.Queue) != OperatingMode.Queue)
{
return;
}
// Check each pending notification for expiry, then remove it
for (int i = PendingNotifications.Count - 1; i >= 0; --i)
{
PendingNotification queuedNotification = PendingNotifications[i];
DateTime? time = queuedNotification.Notification.DeliveryTime;
if (time != null && time < DateTime.Now)
{
PendingNotifications.RemoveAt(i);
LocalNotificationExpired?.Invoke(queuedNotification);
}
}
}
/// <summary>
/// Respond to application foreground/background events.
/// </summary>
protected void OnApplicationFocus(bool hasFocus)
{
if (Platform == null || !Initialized)
{
return;
}
inForeground = hasFocus;
if (hasFocus)
{
OnForegrounding();
return;
}
Platform.OnBackground();
// Backgrounding
// Queue future dated notifications
if ((mode & OperatingMode.Queue) == OperatingMode.Queue)
{
// Filter out past events
for (var i = PendingNotifications.Count - 1; i >= 0; i--)
{
PendingNotification pendingNotification = PendingNotifications[i];
// Ignore already scheduled ones
if (pendingNotification.Notification.Scheduled)
{
continue;
}
// If a non-scheduled notification is in the past (or not within our threshold)
// just remove it immediately
if (pendingNotification.Notification.DeliveryTime != null &&
pendingNotification.Notification.DeliveryTime - DateTime.Now < MinimumNotificationTime)
{
PendingNotifications.RemoveAt(i);
}
}
// Sort notifications by delivery time, if no notifications have a badge number set
bool noBadgeNumbersSet =
PendingNotifications.All(notification => notification.Notification.BadgeNumber == null);
if (noBadgeNumbersSet && AutoBadging)
{
PendingNotifications.Sort((a, b) =>
{
if (!a.Notification.DeliveryTime.HasValue)
{
return(1);
}
if (!b.Notification.DeliveryTime.HasValue)
{
return(-1);
}
return(a.Notification.DeliveryTime.Value.CompareTo(b.Notification.DeliveryTime.Value));
});
// Set badge numbers incrementally
var badgeNum = 1;
foreach (PendingNotification pendingNotification in PendingNotifications)
{
if (pendingNotification.Notification.DeliveryTime.HasValue &&
!pendingNotification.Notification.Scheduled)
{
pendingNotification.Notification.BadgeNumber = badgeNum++;
}
}
}
for (int i = PendingNotifications.Count - 1; i >= 0; i--)
{
PendingNotification pendingNotification = PendingNotifications[i];
// Ignore already scheduled ones
if (pendingNotification.Notification.Scheduled)
{
continue;
}
// Schedule it now
Platform.ScheduleNotification(pendingNotification.Notification);
}
// Clear badge numbers again (for saving)
if (noBadgeNumbersSet && AutoBadging)
{
foreach (PendingNotification pendingNotification in PendingNotifications)
{
if (pendingNotification.Notification.DeliveryTime.HasValue)
{
pendingNotification.Notification.BadgeNumber = null;
}
}
}
}
// Calculate notifications to save
var notificationsToSave = new List <PendingNotification>(PendingNotifications.Count);
foreach (PendingNotification pendingNotification in PendingNotifications)
{
// If we're in clear mode, add nothing unless we're in rescheduling mode
// Otherwise add everything
if ((mode & OperatingMode.ClearOnForegrounding) == OperatingMode.ClearOnForegrounding)
{
if ((mode & OperatingMode.RescheduleAfterClearing) != OperatingMode.RescheduleAfterClearing)
{
continue;
}
// In reschedule mode, add ones that have been scheduled, are marked for
// rescheduling, and that have a time
if (pendingNotification.Reschedule &&
pendingNotification.Notification.Scheduled &&
pendingNotification.Notification.DeliveryTime.HasValue)
{
notificationsToSave.Add(pendingNotification);
}
}
else
{
// In non-clear mode, just add all scheduled notifications
if (pendingNotification.Notification.Scheduled)
{
notificationsToSave.Add(pendingNotification);
}
}
}
// Save to disk
Serializer.Serialize(notificationsToSave);
}