How to parse this complex(nested) json data?

Question

Can anyone help me parse this complex nested json data?

I am working with iPhone Xcode 4.3 and objective-c.please provide small demo.

{"html_attributions" : [],
   "results" : [

      {
         "geometry" : {
            "location" : {
               "lat" : 61.1820430,
               "lng" : -149.8003850
            }
         },
         "icon" : "http://maps.gstatic.com/mapfiles/place_api/icons/generic_business-71.png",
         "id" : "207c77fb1258ef8cb22abe391c4924850a1ac045",
         "name" : "Alaska Native Medical Center Rad",
         "reference" : "CoQBdwAAAG5xNU-hb4BzNd-9H8IcLHcnz8txVe2j00HjRmjInS6uYt0j4qnAhOU_FNkHSSjvZd47dVu8Vk8Vj2iuu0NDDDa3tkCK-yHbUaj1Wrg5DNFvPmou1jvsjUE6gRKUAHXXemRJTNgtDfvhnS5kNdS0c71r9Df2S_Yvu0m92z62D0TZEhACm7dSGWKcpfZ_H-zTi5BzGhRCM22q0rCD6vjD3keZfBELfn_VsA",
         "types" : [ "hospital", "health", "establishment" ],
         "vicinity" : "4315 Diplomacy Drive, Anchorage"
      }
   ],
   "status" : "OK"
}

What language you are using to decode it?

rechie
– rechie

2011-10-19 05:37:38 +00:00
Commented Oct 19, 2011 at 5:37 — rechie
– rechie, Commented Oct 19, 2011 at 5:37

Stark · Accepted Answer · 2011-10-19 06:35:17Z

1

For this kind of complex JSON string you can not use google's JSON frame work.But to assign that string to NSDictionary you will require that frame work. So first add that framework to your project.Then Add JSON.h file to your .m file. And then use assign that string as follows: NSDictionary *dic = [jsonString JSONValues]; After this line you will get all the values of your string in three keys. First key is "html_attributions" second key is "result" and third key is "status". For accessing the inner values of your second key you have to assign that to another NSDictionary or NSArray variable.And use key to access the values.

It will work for only above mentioned JSON String.

answered Oct 19, 2011 at 6:35

Stark

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2 Comments

user985408 Over a year ago

Hi stark....thanks for help it's work but i like to tell you something that i don't need to pass "html_attributions" as key.We can directly use result as key and it's work fine.Thanks Again.

Stark Over a year ago

If it was helpful then please give the ratings.

Brian · Accepted Answer · 2011-10-19 05:40:04Z

1

There's an objective-c library called JSONKit that works pretty well. It'll give you an NSArray or NSDictionary that you can then get your data out of.

https://github.com/johnezang/JSONKit

Its as easy as doing this:

NSDictionary *unserializedData = [jsonString objectFromJSONString];

where jsonString is your json data from above that you want to parse in an NSString.

answered Oct 19, 2011 at 5:40

Brian

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Jaffa · Accepted Answer · 2011-10-19 05:40:08Z

0

Why don't you use a framework for that job?

You can try json-framework (formerly SBJSon).

Project page : https://github.com/stig/json-framework

answered Oct 19, 2011 at 5:40

Jaffa

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richerd · Accepted Answer · 2011-10-19 05:42:48Z

0

If your on the iPhone you can use various JSON Libraries to turn JSON strings into NSDictionary and NSArray objects

JSON Kit is a very fast and lightweight library that you can use: https://github.com/johnezang/JSONKit

Or there is JSON-framework: http://code.google.com/p/json-framework/

Also if targeting iOS 5 devices, Apple has included their own JSON deserializer. Take a look at the NSJSONSerialization class

https://developer.apple.com/library/ios/#documentation/Foundation/Reference/NSJSONSerialization_Class/Reference/Reference.html

answered Oct 19, 2011 at 5:42

richerd

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