How to add a number of weeks to an NSDate?

Question

I have in the past used the below function to add on a specific time interval using NSDateComponents to an existing date.

(NSDate *)dateByAddin         


        

Answer 1

You can add a category on NSDate with the following method:

- (NSDate *) addWeeks:(NSInteger)weeks
{
    NSCalendar *gregorian=[[NSCalendar alloc] initWithCalendarIdentifier:NSCalendarIdentifierGregorian];
    NSDateComponents *components=[[NSDateComponents alloc] init];
    components.day = weeks * 7;

    return [gregorian dateByAddingComponents:components toDate:self options:0];
}