public void Subscribe(INotificationEventObserver observer)
{
lock (@lock)
{
observers.Add(new WeakReference <INotificationEventObserver>(observer));
}
}
public void Unsubscribe(INotificationEventObserver observer)
{
lock (@lock)
{
for (int i = 0; i < observers.Count; i++)
{
if (observers[i].TryGetTarget(out var tgt) == false)
{
observers.RemoveAt(i--);
continue;
}
if (ReferenceEquals(tgt, observer))
{
observers.RemoveAt(i--);
}
}
}
}
