Thanks for verifying. On Aug 26, 2011, at 7:09 , Heath Borders wrote:
> You must call remove as many times as you call add. Otherwise, > subclasses and superclasses would interfere with each other's > observations. > > -Heath Borders > heath.bord...@gmail.com > Twitter: heathborders > http://heath-tech.blogspot.com > > > > On Fri, Aug 26, 2011 at 4:34 AM, Rick Mann <rm...@latencyzero.com> wrote: >> Is -addObserver:forKeyPath:… idempotent? I called it multiple times with the >> same parameters, but called -removeObserver:forKeyPath: only once, and the >> object continued to receive KVO notifications. >> >> After adding code to ensure -addObserver:forKeyPath:… was only called once, >> -removeObserver:forKeyPath: seemed to work as expected. >> >> I couldn't find any clear indication in the docs or searching online, >> although I did find some things that indicate these APIs rather do suck. >> >> -- >> Rick >> >> _______________________________________________ >> >> 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/heath.borders%40gmail.com >> >> This email sent to heath.bord...@gmail.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/rmann%40latencyzero.com > > This email sent to rm...@latencyzero.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
