Question

i have a NSString variables like this
dd-MM-YYYY exemple 30-05-2011 . How can i get day in a variable , month in variable and year in variable ?
thank you

Answer 1

Use NSDateFormatter and NSDateComponents.

In particular, for the format “dd-MM-YYYY”:

NSDateFormatter *formatter = [[[NSDateFormatter alloc] init] autorelease];
[formatter setDateFormat:@"dd'-'MM'-'yyyy"];
// Your date represented as a NSDate
NSDate *date = [formatter dateFromString:myDateString];
// Now, use NSCalendar / NSDateComponents to get the components
NSDateComponents *comps = [[NSCalendar currentCalendar] components:NSYearCalendarUnit|NSMonthCalendarUnit|NSDayCalendarUnit
                                                          fromDate:date];

Now you’re free to access [comps day], [comps month], and [comps year].

See here for a description of all the format-parsing options. Keep in mind that NSDateFormatter also supports older versions of this standard, so you’ll have to be careful.