How to convert NSDictionary to Json String in Swift ( iOS, Xcode )?

Question

I'm suffering from the following problem.... My NSDictionary is like that :

var dic : NSDictionary = [ "level" :
    [
        ["column" : 0,"down" : 0,"left" : 0,"right" : 0,"row" : 0,"up" : 0],
        ["column" : 1,"down" : 0,"left" : 0,"right" : 0,"row" : 0,"up" : 0],
        ["column" : 2,"down" : 0,"left" : 0,"right" : 0,"row" : 0,"up" : 0],
        ["column" : 0,"down" : 0,"left" : 0,"right" : 0,"row" : 1,"up" : 0],
        ["column" : 1,"down" : 0,"left" : 0,"right" : 0,"row" : 1,"up" : 0],
        ["column" : 2,"down" : 0,"left" : 0,"right" : 0,"row" : 1,"up" : 0]
    ]
]

But If I print this,

print(dic);  or print(“\(dic)”);

The Out put Is like that :

{
    level =     (
                {
            column = 0;
            down = 0;
            left = 0;
            right = 0;
            row = 0;
            up = 0;
        },
                {
            column = 1;
            down = 0;
            left = 0;
            right = 0;
            row = 0;
            up = 0;
        },
                {
            column = 2;
            down = 0;
            left = 0;
            right = 0;
            row = 0;
            up = 0;
        },
                {
            column = 0;
            down = 0;
            left = 0;
            right = 0;
            row = 1;
            up = 0;
        },
                {
            column = 1;
            down = 0;
            left = 0;
            right = 0;
            row = 1;
            up = 0;
        },
                {
            column = 2;
            down = 0;
            left = 0;
            right = 0;
            row = 1;
            up = 0;
        }
    ); }

How Can I get exact Json String? In swift, xcode?

Simple solution Please Check : http://stackoverflow.com/a/29628000/3378413 — Mihir Oza, Dec 17 '15 at 04:51

score 40 · Accepted Answer · edited Dec 23 '21 at 12:16

40

No need to implement this kind of complex logic,

You can simply do this

var jsonData: NSData = NSJSONSerialization.dataWithJSONObject(dictionary, options: NSJSONWritingOptions.PrettyPrinted, error: &error)!
if error == nil {
    return NSString(data: jsonData, encoding: NSUTF8StringEncoding)! as String
}

and if you want to send it with API to server , no need to even convert it to String

edited Dec 23 '21 at 12:16

hasan

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answered Dec 17 '15 at 05:26

Mihir Mehta

13,743
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1

Yes. This worked.... Thank you... – Rivu Chakraborty Dec 17 '15 at 05:52
2

Look also here for swift 3 https://stackoverflow.com/a/29625483/5790492 – Nike Kov May 30 '17 at 12:45

How to convert NSDictionary to Json String in Swift ( iOS, Xcode )?

1 Answers1