On Aug 18, 2017, at 02:23 , Nick <eveningn...@gmail.com> wrote: > > The problem is that observeValueForKeyPath is being called twice every time > I move the slider or enter a new value in the edit.
This may be an artifact of updating the “model” (i.e. UserDefaults”) via a binding, and you may not be able to control it. I would suggest not wasting any effort on preventing the double notification, but rather filter unnecessary notifications in your observer method. (You can set the options for passing the new and old values into the observer method, if you don’t wan’t to track the actual values yourself.) _______________________________________________ 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
