On 11 Sep 2013, at 13:55, Graham Cox <graham....@bigpond.com> wrote:
>
> On 11/09/2013, at 1:35 PM, Dave <d...@looktowindward.com> wrote:
>
>> Is there any problem with having all notifications handled by one object
>> that doesn't go away,
>
> Well, [NSNotificationCenter defaultCenter] is that object…
Yes, but it doesn't remember the last value of a notification, which is what I
would like.
>> and have this ship the notificationa off to the correct object as long as it
>> is still alive? The way this App is designed is I can tell if the object is
>> allocated or not and if it is allocated, then I want it to receive
>> notifications
>
>
> The correct way to deal with this is to remove yourself as a receiver of
> notifications when you are deallocated. The documentation, in its roundabout
> way, does state this.
>
> - (void) dealloc
> {
> [[NSNotificationCenter defaultCenter] removeObserver:self];
> ...
>
> [super dealloc];
> }
>
>
> This pattern works without resorting to any odd hacks to avoid notifying a
> dead object. Since that removes all possible notifications for 'self' it's a
> good habit to add this automatically as soon as you add any notificaition
> observations to your code.
Yes, I am removing myself as a receiver, but ideally I want to receive these
notification even if the object is dead. By this I mean, I want the last known
value of the notification restored when the Object in question starts up again.
At present I have to save this somewhere ugly and restore it from somewhere
ugly. I just thought it would be nice to be able to just make a call something
like:
-(void) reissueLastNotificationName:@"Note1" forClass:self
Rather than save it somewhere ugly 26 more times!
I could maybe subclass NSNotificationCenter?
All the Best
Dave
_______________________________________________
Cocoa-dev mailing list (Cocoa-dev@lists.apple.com)
Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com
Help/Unsubscribe/Update your Subscription:
https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com
This email sent to arch...@mail-archive.com
