ios - Using a variable property value for NSCalendarIdentifier return nil -


i'm trying init nscalendar value variable below:

nscalendar *calendar = [[nscalendar alloc] initwithcalendaridentifier:jam.calendertype];

but calendar returns nil

i know that:

nscalendar *calendar = [[nscalendar alloc] initwithcalendaridentifier:nscalendaridentifierislamic];

and: 

nscalendar *calendar = [[nscalendar alloc] initwithcalendaridentifier:nscalendaridentifiergregorian];

both work fine want value jam.calendertype nsstring has value of @"nscalendaridentifierislamic" or @"nscalendaridentifiergregorian"

your problem comes way store calendar identifier in variable. when wrote @"nscalendaridentifierislamic" means string characters, , not string nscalendaridentifierislamic identifier points to.

so set variable jam.calendertype = nscalendaridentifierislamic; or jam.calendertype = nscalendaridentifiergregorian; , work fine.

another easy solution have been make calendertype bool or int , based on it's value chose nscalendaridentifierislamic or nscalendaridentifiergregorian in calendar init.


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