How to convert a string to JSON Array in Swift with SwiftyJSON?

Question

I have a json array in string format, however for some reason I cannot convert it to JSON array with SwiftyJSON. It might have something to do with json structure. How do I do it?

Here is the string

[{"Disabled":false,"Group":null,"Selected":false,"Text":"1","Value":"1"},{"Disabled":false,"Group":null,"Selected":false,"Text":"2","Value":"2"},{"Disabled":false,"Group":null,"Selected":false,"Text":"3","Value":"3"},{"Disabled":false,"Group":null,"Selected":false,"Text":"4","Value":"4"},{"Disabled":false,"Group":null,"Selected":false,"Text":"5","Value":"5"}]

Here is my code:

let json = JSON(jsonString)

Ulug'bek · Accepted Answer · 2016-12-27 07:18:54Z

8

You can use SwiftyJSON for that then you can get JSON like as follow.

import SwiftyJSON

let json = JSON(data: dataFromNetworking)
let json = JSON(jsonObject)
if let dataFromString = jsonString.dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: false) {
    let json = JSON(data: dataFromString)
}

Edit: Swift 3

if let dataFromString = jsonString?.data(using: String.Encoding.utf8, allowLossyConversion: false) {
    let json = JSON(data: dataFromString)    
}

edited Dec 27, 2016 at 7:18

Ulug'bek

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answered May 11, 2016 at 9:04

Piyush

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Comments

ridvankucuk · Accepted Answer · 2016-05-11 06:59:18Z

6

You should cast your data to array like this way:

if let arr = (data as? JSON)?.array {
// do something with your array
}

answered May 11, 2016 at 6:59

ridvankucuk

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1 Comment

Jacob Smith Over a year ago

what is 'data' here? our string ?

Lumialxk · Accepted Answer · 2016-05-11 07:06:20Z

2

You can do like this:

let json = JSON(jsonString)
if let array = json?.array {
    // do something with array
}

answered May 11, 2016 at 7:06

Lumialxk

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Comments

Jacob Smith · Accepted Answer · 2016-05-11 07:19:20Z

0

Ended up doing this:

if let jsonString = json["Data"].string!.dataUsingEncoding(NSUTF8StringEncoding){

            let json = JSON(data: jsonString)
            print(json[0])

}

answered May 11, 2016 at 7:19

Jacob Smith

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Comments

IOS Singh · Accepted Answer · 2017-02-17 12:13:40Z

0

My problem resolved using this

    let objectData = responseString!.dataUsingEncoding(NSUTF8StringEncoding)
 let json = try NSJSONSerialization.JSONObjectWithData(objectData!, options: NSJSONReadingOptions.MutableContainers)
let myjson = JSON(json)

answered Feb 17, 2017 at 12:13

IOS Singh

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