How to convert CGPoint in NSValue in swift?

Question

As my question title says how can I convert CGPoint into NSValues so I can store then Into array In swift.

In objective-C we can do it like this:

  // CGPoint converted to NSValue
     CGPoint point = CGPointMake(9, 9);
     NSValue *pointObj = [NSValue valueWithCGPoint:point];

But can anybody tell me that how can I do this in swift?

Thanks In Advance.

score 38 · Accepted Answer · answered Oct 08 '14 at 08:12

38

Try something like that:

let point = CGPointMake(9, 9)
var pointObj = NSValue(CGPoint: point)

answered Oct 08 '14 at 08:12

derdida

14,784
16
90
139

idk why there is no popup for this c-tor – fnc12 Mar 18 '15 at 12:01

score 12 · Answer 2 · answered Oct 08 '14 at 08:14

12

Exactly as you'd imagine:

let point = CGPoint(x: 9.0, y: 9.0)
let pointObj = NSValue(CGPoint: point)
let newPoint = pointObj.CGPointValue()

answered Oct 08 '14 at 08:14

Stephen Darlington

51,577
12
107
152

score 7 · Answer 3 · edited May 21 '19 at 20:16

7

If you aren't planning on using the array in Objective-C, and can keep it as a Swift Array, then you don't need to turn the point into an NSValue, you can just add the point to the array directly:

let point1 = CGPoint(x: 9.0, y: 9.0)
let point2 = CGPoint(x: 10.0, y: 10.0)

let pointArray = [point1, point2] // pointArray is inferred to be of type [CGPoint]

let valuesArray = pointsArray as [NSValue]

edited May 21 '19 at 20:16

kelin

11,323
6
67
104

answered Jan 01 '15 at 12:16

Abizern

146,289
39
203
257

But if that was the case, you would be using NSPoint, not CGPoint. It's obvious it's for interop, so your answer is irrelevant for the question. – Claus Jørgensen Aug 14 '16 at 23:22

Jan · Answer 4 · 2016-08-15T14:57:01.387

1

swift 3

let pointObj =  NSValue(cgPoint: CGPoint(x:9, y:9))

https://developer.apple.com/reference/foundation/nsvalue/1624531-init

edited Aug 15 '16 at 14:57

answered Aug 14 '16 at 23:13

Jan

12,992
9
53
89

2

Ok. A few things. pointObj is an odd name for a NSValue. The .init is not required. The parameter you are passing in is a CGSize not a CGPoint. This makes the name even more odd. – Fogmeister Aug 14 '16 at 23:16
2

Using .init is wrong/discouraged in Swift in general. – Claus Jørgensen Aug 14 '16 at 23:20
thx. the ``pointObj`` was regarded to the accepted answer to be consistent for better reading. I am going to edit that. – Jan Aug 15 '16 at 14:56
This is very strange but it does not exist in macOS, it is simply 'point' – Cristi Băluță Mar 13 '17 at 06:38

score 1 · Answer 5 · answered Jan 31 '18 at 06:06

1

swift 4

let point = NSValue.init(cgPoint: mask.position)

answered Jan 31 '18 at 06:06

Aayushi

787
10
14

How to convert CGPoint in NSValue in swift?

5 Answers5

Linked

Related