NSDictionary: convert NSString keys to lowercase to search a string on them
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Published on 2010-06-03T16:59:08Z
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2010/06/03
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Hello.
I'm developing an iPhone application.
I use a NSDictionary to store city's names as key, and population as value. I want to search the keys using lowercase.
I've using this:
NSDictionary *dict;
[dict objectForKey:[[city stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]] lowercaseString]];
But, it doesn't work.
I know, I can do a for, convert keys to lowercase and compare with city.
Is there any other way to do that? Maybe, with a NSDictionary method.
UPDATE
The NSDictionary is loaded from a property list.
Thank you.
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