Are you implying that one KVO is blocking the others?
Sent from my iPhone
> On Nov 17, 2015, at 8:18 PM, Graham Cox <graham....@bigpond.com> wrote:
>
> I’m using KVO to observe a bunch of properties.
>
> Most of these properties are split out into simple things that set a single
> value, but internal to my object, some end up setting a common dictionary of
> attributes, which is also a property.
>
> I KVO observe both the simple properties and the common dictionary property.
> Mostly this is working, but when code directly sets the dictionary property,
> the other properties don’t trigger their observers, even though I’m
> implementing the +keyPathsForValuesAffecting<property>, which I believe
> should cause the additional triggering. Have I understood that right?
>
> Here’s the kind of code I have:
>
>
> @property (retain) id<NSObject> thingy;
> @property (retain) NSDicitonary* dictionaryOfThings;
>
> @implementation
>
> - (void) setThingy:(is<NSObject> thing
> {
> NSMutableDictionary* temp = [self.dictionaryOfThings mutableCopy];
> [temp setObject:thing forKey:kThingKey];
> self.dictionaryOfThings = temp;
> }
>
> - (id<NSObject>) thingy
> {
> return [self.dictionaryOfThings objectForKey:kThingKey];
> }
>
>
> + (NSSet*) keyPathsForValuesAffectingThingy
> {
> return [NSSet setWithObject:@“dictionaryOfThings”];
> }
>
>
> So what I want (expect?) is that is code sets -dictionaryOfThings directly,
> an observer of ‘thingy’ will be triggered. Is that right?
>
>
> —Graham
>
>
>
> _______________________________________________
>
> 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/zav%40mac.com
>
> This email sent to z...@mac.com
_______________________________________________
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
