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iosobjective-cnscalendar

Difference between kCFCalendarUnitDay and NSCalendarUnitDay in Objective C

I would just like to ask what's the difference between kCFCalendarUnitDay and NSCalendarUnitDay in Objective C? I'm planning to use it to fire a local notification on a specific time of the day. I was thinking, which one is more appropriate to use? I hope you could help me chose. Thanks in advance guys!

Solution

  • NSCalendarUnitDay is being used in Foundation Framework

    kCFCalendarUnitDay is being used in Core Foundation Framework

    CF Means "Core Foundation"

    k represents the constants. That is Apple's Convention while representing constant

    NSCalendarUnitDay constant is initialised from the Core Foundation Framework's "kCFCalendarUnitDay" constant.

    They both same & representing the same constant.

    I would recommend you to use Foundation Framework's NSCalendarUnitDay

    Refer the attached screenshot.

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