if NSDate is Monday

How can I check if an NSDate开发者_开发百科 is a specific day of the week, like a Monday, Tuesday, Wednesday, and so on?

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From memory (I don't have an ObjC environment handy at the moment):

int yourDOW = [[[NSCalendar currentCalendar] components:NSWeekdayCalendarUnit
    fromDate:yourDate] weekday];
if (yourDOW == 2) { ... }     // Sun = 1, Sat = 7

In other words:

• Get the user's current calendar.
• Get the weekday unit based on the given date.
• Get the week day from that.
• Compare it with what you want.