Got a tip for us?
Let us know
Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
iOS Are objects automatically registered to observe their own key values?
- Thread starter moonman239
- Start date
- Sort by reaction score
No.
Key value observing is fairly costly. Why would an object need to observe itself?
So it can notify the object that contains it when a value changes. Yes, I know the containing object can add itself as an observer, but it could end up doing more work than it needs to.
Sorry, but that's dumb. Notifying yourself, you would then have to generate a second notification to the other object. There is NO value in KVC notification of yourself.