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Re: Sorting an NSArray

On Jun 30, 2005, at 1:53 AM, j o a r wrote:
On 30 jun 2005, at 10.46, Andy Lee wrote:
Oops, that isn't right. The selector you pass is supposed to be a comparison method, which is not what -name is. What you should do is write a comparison method in your object class, and pass the selector for that method.


Stop to think if you really need to write a custom comparison method - it's probably only necessary if you need to compare non- object values or perform a compound comparison between several attributes. The question asked in the first message in this thread didn't give that impression.

Hm, taking a hint, I've discovered NSSortDescriptor, which I can now use myself since I'm no longer supporting Jaguar in my app. (I'll have to check whether it buys me anything.)

I won't try to explain NSSortDescriptor at this hour, for fear of embarrassing myself -- I'll just repeat the advice to see the docs and post again if they're not clear.

Thanks.

--Andy


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References: 
 >Sorting an NSArray (From: Duncan Campbell <email@hidden>)
 >Re: Sorting an NSArray (From: Andy Lee <email@hidden>)
 >Re: Sorting an NSArray (From: Andy Lee <email@hidden>)
 >Re: Sorting an NSArray (From: j o a r <email@hidden>)



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