Creating a future date in swift with NSDate()

Question

I'm getting an error: "Missing argument for parameter 'coder' in call" for the following code:

var components = NSDateComponents()     
components.setValue(1,forComponent: NSCalendarUnit.CalendarUnitMonth);
var expirationDate = NSCalendar.currentCalendar().dateByAddingComponents(components,       toDate: NSDate(),options:0)

The docs calls for:

NSCalendar.currentCalendar().dateByAddingComponents(<#comps: NSDateComponents?#>, toDate: <#NSDate?#>, options: <#NSCalendarOptions#>)

Can anyone see what I'm missing? I don't see a parameter named 'coder' required.

score 56 · Accepted Answer · edited Jun 20 '20 at 09:12

56

how it looks to be with

swift 4.x

let date = Date()
var components = DateComponents()
components.setValue(1, for: .month)
let expirationDate = Calendar.current.date(byAdding: components, to: date)

swift 2.0

let components: NSDateComponents = NSDateComponents()
components.setValue(1, forComponent: NSCalendarUnit.Month);
let date: NSDate = NSDate()
let expirationDate = NSCalendar.currentCalendar().dateByAddingComponents(components, toDate: date, options: NSCalendarOptions(rawValue: 0))

swift 1.2

var components = NSDateComponents()
components.setValue(1, forComponent: NSCalendarUnit.CalendarUnitMonth);
let date: NSDate = NSDate()
var expirationDate = NSCalendar.currentCalendar().dateByAddingComponents(components, toDate: date, options: NSCalendarOptions(0))

Objective-C

NSDate *date = [NSDate new];  
NSDateComponents *components = [NSDateComponents new];
components.month = 1;
NSDate *expirationDate = [[NSCalendar currentCalendar] dateByAddingComponents:components toDate:date options:0];

edited Jun 20 '20 at 09:12

Community

1
1

answered Jul 14 '14 at 16:30

holex

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7
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Don't understand what the error meant, especially the "coder" part, but your fix worked. Gracias. – krisacorn Jul 14 '14 at 16:34
I would not like to be a smart-ass to say some clever thing – regarding _Xcode6_ is still beta only – but I presume the issue was the `NSDate` was inited as embedded parameter, and the compiler wanted to call the `NSDate(coder:)` method for it instead of the `NSDate()` for some reason. that could be the reason of you had the error message about the missing `coder:` parameter. – holex Jul 14 '14 at 16:44
1

Update for Swift 2.0 - change the options value to: `NSCalendarOptions(rawValue: 0)` – leanne Jul 08 '15 at 18:01
2

You can also just use `[]` instead of `NSCalendarOptions(rawValue: 0)` – Aaron Brager Jan 24 '16 at 19:42

score 12 · Answer 2 · answered Jul 28 '16 at 15:02

12

Syntax for Swift 3

var components = DateComponents()
components.setValue(1, forComponent: .month)
let date: Date = Date()
let expirationDate = Calendar.current.date(byAdding: components, to: date, options: [])

answered Jul 28 '16 at 15:02

Luke Bartolomeo

551
7
11

score 6 · Answer 3 · answered Nov 25 '16 at 12:05

6

Latest Swift 3 syntax:

var components = DateComponents()
components.setValue(1, for: .month)
let date: Date = Date()
let expirationDate = Calendar.current.date(byAdding: components, to: date)

answered Nov 25 '16 at 12:05

Claus

5,662
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118

Works beautifully in Swift 4. – Vahid Amiri Apr 30 '18 at 20:32

score 1 · Answer 4 · answered May 07 '18 at 08:37

1

Swift 4 version

var components = DateComponents()
components.setValue(1, for: .month)
let date: Date = Date()
let expirationDate = Calendar.current.date(byAdding: components, to: date, wrappingComponents: false)

Hope this helps!

answered May 07 '18 at 08:37

Abhishek Jain

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Creating a future date in swift with NSDate()

4 Answers4

swift 4.x

swift 2.0

swift 1.2

Objective-C

Linked