NSCalendar throwing error on ios 7

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iPhone  Ios  Ios 7 
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I am creating my app with Xcode 6 and it works fine on ios8. I just tested the app on ios7 and i get this error:

Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '+[NSCalendar calendarWithIdentifier:]: unrecognized selector sent to class 0x3a78418c
This is the code i am using as part of converting dates from Gregorian calendar to Persian Calendar:

NSCalendar *calendar = [NSCalendar calendarWithIdentifier:@"persian"];
  1. Post:154

    Re: NSCalendar throwing error on ios 7

    The +[NSCalendar calendarWithIdentifier] class method is only available on iOS 8/OS X 10.9 and later.

    But you can use the designated initializer method instead, this works on all iOS releases:

    NSCalendar *calendar = [[NSCalendar alloc] initWithCalendarIdentifier:@"persian"];

      Modified On Apr-06-2018 12:58:46 AM



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