Limited-access, KVO-compliant mutable array?
Limited-access, KVO-compliant mutable array?
- Subject: Limited-access, KVO-compliant mutable array?
- From: Rick Mann <email@hidden>
- Date: Tue, 10 Jul 2012 23:17:42 -0700
I feel certain people have run into this before, but my Googling didn't turn up exactly what I was looking for.
I'd like to create a "mutable read-only" array property. I want clients of the class to be able to observe changes to the *contents* of the array (that is, if an element is added or removed), in addition to changes of the entire array. But I don't want those clients to be able to add or remove anything to/from the array themselves; I only want the class on which the property is defined to be able to do that.
Is this possible? My first thought is to make a read-only NSArray* property, but then it seems that addition or removal of elements to/from that property wouldn't get observed; i.e., an NSArray should never change its contents.
What's the right way to do this? Thanks!
--
Rick
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