Define "doesn't work" - if you mean observeValue:forKeyPath:... doesn't get called, it's because that's a different relationship from bindings. With bindings, a change in one value causes a change in another. With observers, a change in one value causes a call to the observeValue method.
On Sep 20, 2011, at 2:13 AM, Torsten Curdt wrote: > Before I was following the docs and wrote the bindings clue code myself > > http://developer.apple.com/library/mac/#documentation/Cocoa/Conceptual/CocoaBindings/Concepts/HowDoBindingsWork.html#//apple_ref/doc/uid/20002373 > > - (void)bind:(NSString *)binding toObject:(id)theObservedObject > withKeyPath:(NSString *)theKeyPath options:(NSDictionary *)options > { > ... > self.observedObject = theObservedObject; > self.observedKeyPath = theKeyPath; > > [theObservedObject addObserver:self > forKeyPath:theKeyPath > options:NSKeyValueObservingOptionInitial > context:nil]; > ... > } > > > Now I have found these posts suggesting that it is not required to (or > even one should not) override bind:toObject:withKeyPath:options: > > http://www.tomdalling.com/blog/cocoa/implementing-your-own-cocoa-bindings > http://stackoverflow.com/questions/1169097/can-you-manually-implement-cocoa-bindings > http://stackoverflow.com/questions/366938/is-it-necessary-to-override-bindtoobjectwithkeypathoptions-in-an-nsview-subcl/ > > But I see myself in the same camp: > > When I don't override bind:toObject:withKeyPath:options: my custom > NSView's bindings do not work. > > Could someone clear this up? > > cheers, > Torsten > _______________________________________________ > > 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: > http://lists.apple.com/mailman/options/cocoa-dev/lrucker%40vmware.com > > This email sent to lruc...@vmware.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: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
