On 1 Aug 2012, at 21:38, Michael Babin <mba...@orderndev.com> wrote:
>
> On Aug 1, 2012, at 8:00 AM, Erik Stainsby <erik.stain...@roaringsky.ca> wrote:
>
>> So I have a dictionary like so:
>>
>> NSDictionary * countries = [NSDictionary dictionaryWithObjects:[NSArray
>> arrayWithObjects:@"Australia",@"Canada",@"United Kingdom",@"United
>> States",nil] forKeys:[NSArray arrayWithObjects:@"au",@"ca",@"uk",@"us",nil]];
>>
>> I want to present them alphabetically as menuItems in an NSPopUpButton. I
>> grab the list of keys:
>>
>> NSMutableArray * sortkeys = [NSMutableArray arrayWithArray:[countries
>> allKeys]];
>>
>> What I have come up with is this:
>>
>> [sortkeys sortUsingComparator:^NSComparisonResult(id obj1, id obj2) {
>> return [(NSString*)obj1 compare:(NSString*)obj2 ];
>> } ];
>>
>> Is this a sane approach ? Seems a bit fussy to have to spec the cast like
>> this. Or is this just the what-is of this kind of functionality?
>
> If your comparison is only going to be a single method call with a single
> parameter like this, then probably a bit simpler to use:
>
> [sortkeys sortUsingSelector:@selector(compare:)];
The documentation says: "If you are comparing strings to present to the
end-user, you should typically use localizedCompare: or
localizedCaseInsensitiveCompare: instead."
Kind regards,
Gerriet.
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