How to Convert JsonString to NSArray?

Question

I am having a real hard time converting Json String to NSArray. This is my code

NSError *jsonError;
NSData *objectData = [[response objectForKey:@"result"] dataUsingEncoding:NSUTF8StringEncoding];
NSDictionary *json = [NSJSONSerialization JSONObjectWithData:objectData
                                                         options:NSJSONReadingMutableContainers
                                                           error:&jsonError];

NSLog(@"json = %@",json);

NSString *jsonDataString = [json objectForKey:@"data"];
NSLog(@"jsonDataArray = %@",jsonDataString);

NSData* cityData = [jsonDataString dataUsingEncoding:NSUTF8StringEncoding];

NSLog(@"%@",cityData);

NSError *errorMSg;
NSMutableArray *cityArray = [[NSMutableArray alloc] init];
NSMutableArray *testFeeds = [NSJSONSerialization JSONObjectWithData: cityData options:NSJSONReadingMutableContainers error:&errorMSg];
[cityArray addObjectsFromArray:testFeeds];

NSLog(@"%@",cityArray);
NSLog(@"%@",errorMSg);
NSLog(@"%d", [cityArray count]);

This is my Debuuged Response. I know this question has been asked too many time but none of the solution is working for me. The json response comes under single quotes not redable in iOS

json = { data = "[{'Amount': '5000', 'Description' : 'test', 'Transact at': 'Tue Dec 22 2015 18:48:14 GMT+0530 (IST)', 'Transaction mode': 'Cash'},{'Amount': '100', 'Description' : 'test', 'Transact at': 'Wed Dec 30 2015 11:15:12 GMT+0530 (IST)', 'Transaction mode': 'Cheque'}]"; status = Success; }

2015-12-30 17:44:56.890 Quickli[5528:172337] jsonDataArray = [{'Amount': '5000', 'Description' : 'test', 'Transact at': 'Tue Dec 22 2015 18:48:14 GMT+0530 (IST)', 'Transaction mode': 'Cash'},{'Amount': '100', 'Description' : 'test', 'Transact at': 'Wed Dec 30 2015 11:15:12 GMT+0530 (IST)', 'Transaction mode': 'Cheque'}]

2015-12-30 17:44:56.891 Quickli[5528:172337] <5b7b2741 6d6f756e 74273a20 27353030 30272c20 27446573 63726970 74696f6e 27203a20 27746573 74272c20 27547261 6e736163 74206174 273a2027 54756520 44656320 32322032 30313520 31383a34 383a3134 20474d54 2b303533 30202849 53542927 2c202754 72616e73 61637469 6f6e206d 6f646527 3a202743 61736827 7d2c7b27 416d6f75 6e74273a 20273130 30272c20 27446573 63726970 74696f6e 27203a20 27746573 74272c20 27547261 6e736163 74206174 273a2027 57656420 44656320 33302032 30313520 31313a31 353a3132 20474d54 2b303533 30202849 53542927 2c202754 72616e73 61637469 6f6e206d 6f646527 3a202743 68657175 65277d5d>

2015-12-30 17:48:10.166 Quickli[5528:172337] ( )

2015-12-30 17:48:10.935 Quickli[5528:172337] Error Domain=NSCocoaErrorDomain Code=3840 "No string key for value in object around character 2." UserInfo={NSDebugDescription=No string key for value in object around character 2.}

2015-12-30 17:48:12.176 Quickli[5528:172337] 0

Below is required stuff that you want-------- NSMutableArray *testFeeds = [NSJSONSerialization JSONObjectWithData: cityData options:NSJSONReadingMutableContainers error:&errorMSg]; — Vishal Sharma, Dec 30 '15 at 12:23
Possible duplicate of [how to extract json string to array](http://stackoverflow.com/questions/16940101/how-to-extract-json-string-to-array) — Meet Doshi, Dec 30 '15 at 12:33
have you alloc NSmutableArray? see my answer i see "testFeeds" you declared without alloc — Rushang Prajapati, Dec 30 '15 at 12:33
Yes i have alloc NSMutableArray. You can check that in the code above — Umesh Sharma, Dec 30 '15 at 12:36
Brother you only alloc cityArray and you want to add value in testFeeds you also need to declare that — Rushang Prajapati, Dec 30 '15 at 12:38
You can also jsonstring NSJSONSerialization in NSArray and add into NSMutableArray its very simple check my answer — Rushang Prajapati, Dec 30 '15 at 12:42

vadian · Answer 1 · 2015-12-30T12:58:40.527

2

The error message reveals the problem:

"No string key for value in object around character 2." UserInfo={NSDebugDescription=No string key for value in object around character 2.}

That means that the JSON has the wrong format.
You have to replace the single quotes with double quotes.

Insert one line before the NSData* cityData = [… line.

jsonDataString = [jsonDataString stringByReplacingOccurrencesOfString:@"\'" withString:@"\""];

edited Dec 30 '15 at 12:58

answered Dec 30 '15 at 12:39

vadian

274,689
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Crashing here *** -[NSMutableArray addObjectsFromArray:]: array argument is not an NSArray – Umesh Sharma Dec 30 '15 at 12:43
I updated the answer with the probably real failure reason. – vadian Dec 30 '15 at 13:01
exactly best answer – Rushang Prajapati Dec 30 '15 at 13:05
Thanks this was what was making it stop. Everything was right. Please upvote my question. – Umesh Sharma Dec 30 '15 at 13:05

Rushang Prajapati · Answer 2 · 2015-12-30T12:54:01.783

1

If you have an NSString called jsonDataString then you can do something like this...

NSString *jsonDataString = [json objectForKey:@"data"];
NSData *jsonData = [jsonDataString dataUsingEncoding:NSUTF8StringEncoding];
NSMutableArray * testFeeds =[NSMutableArray alloc]init];
NSArray *abc= [NSJSONSerialization JSONObjectWithData:jsonData options: NSJSONReadingMutableContainers error:nil];
[testFeeds addObject:abc];
NSLog(@"%@", testFeeds);

edited Dec 30 '15 at 12:54

answered Dec 30 '15 at 12:26

Rushang Prajapati

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TestFeeds is still empty – Umesh Sharma Dec 30 '15 at 12:58
set NSlog of jsonDataString and jsonData and see have you got value or not – Rushang Prajapati Dec 30 '15 at 13:04

How to Convert JsonString to NSArray?

2 Answers2