Comment ajouter un mois à un NSDate ?

Question

Comment ajouter un mois à l'objet NSDate ?

 NSDate *someDate = [NSDate Date] + 30Days.....;

Answer 1

Vous devez utiliser NSDateComponents :

 NSDateComponents *dateComponents = [[NSDateComponents alloc] init];
[dateComponents setMonth:1];
NSCalendar *calendar = [NSCalendar currentCalendar];
NSDate *newDate = [calendar dateByAddingComponents:dateComponents toDate:originalDate options:0];
[dateComponents release]; // If ARC is not used, release the date components

Answer 2

Avec iOS 8 et OS X 10.9 vous pouvez ajouter NSCalendarUnits utilisant NSCalendar :

Objectif c

 NSCalendar *cal = [NSCalendar currentCalendar];
NSDate *someDate = [cal dateByAddingUnit:NSCalendarUnitMonth value:1 toDate:[NSDate date] options:0];

Rapide 3

 let date = Calendar.current.date(byAdding: .month, value: 1, to: Date())

Rapide 2

 let cal = NSCalendar.currentCalendar()
let date = cal.dateByAddingUnit(.Month, value: 1, toDate: NSDate(), options: [])

Answer 3

Pour Swift 3.0

 extension Date {
    func addMonth(n: Int) -> Date {
        let cal = NSCalendar.current
        return cal.date(byAdding: .month, value: n, to: self)!
    }
    func addDay(n: Int) -> Date {
        let cal = NSCalendar.current
        return cal.date(byAdding: .day, value: n, to: self)!
    }
    func addSec(n: Int) -> Date {
        let cal = NSCalendar.current
        return cal.date(byAdding: .second, value: n, to: self)!
    }
}

Answer 4

Dans Swift 2.0

     let startDate = NSDate()
    let dateComponent = NSDateComponents()
    dateComponent.month = 1
    let cal = NSCalendar.currentCalendar()
    let endDate = cal.dateByAddingComponents(dateComponent, toDate: startDate, options: NSCalendarOptions(rawValue: 0))