Re: NSMutableArray comparator; sorting on insert
Re: NSMutableArray comparator; sorting on insert
- Subject: Re: NSMutableArray comparator; sorting on insert
- From: Michael Ash <email@hidden>
- Date: Fri, 16 Jan 2009 13:13:21 -0500
On Fri, Jan 16, 2009 at 11:27 AM, David Harper <email@hidden> wrote:
> Hello,
>
> I have written a comparator that returns an NSComparisonResult based on the comparison of two objects as required for
>
> [(NSMutableArray *)someArray sortUsingSelector:@selector(theSelector:)]
>
> Now, I want this array to remain sorted after each insert. For now I am inserting, then sorting, but this is not ideal. Is there a way to perform an insert using the same selector to find the correct index before inserting?
Not on the Cocoa side of things, but CFArray has CFArrayBSearchValues
which will do this for you. You'll have to write a little
CFComparatorFunction adapter to bounce the call to your ObjC method
but that's relatively straightforward.
Mike
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