A problem when converting string to date in iPhone?

How t开发者_如何学Goo convert NSString 2010-08-03 04:37:31.0 to August 3, 2010?

Is it possible?

This is probably a duplicate but NSDateFormatter is what you are looking for.

NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];

[dateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss.S"];
NSDate *date = [dateFormatter dateFromString:inDateString];

[dateFormatter setDateFormat:@"MMMM dd',' yyyy"];
NSString *outDateString = [dateFormatter stringFromDate:date];

There are two problems with this approach though.

1. The input string is that it lacks timezone data
2. Different cultures expect a different order than Month Day Year. That can be fixed if you use one of the generic NSDateFormatterStyle formats like NSDateFormatterLongStyle.

Check out the NSDateFormatter documentation. You probably want a format string of @"%B %e, %Y" for the output.