How to access the my JSON in iOS - ios

Question

I'm newbie in iOS. And I'm having a problem accessing my JSON file that I retrieve in my web app server.
JSON:
{
"content": [
{
"info": [
{
"type": "TEL",
"label": "Call Phone",
"id": "32d7da39-39cc-4319-ab76-e67db9385722"
}
],
"name": "myname",
"title": "myname_title",
"image": "",
}
],
"timestamp": 1370491676,
"error": "SUCCESS"
}
I convert NSData to JSON :
NSMutableDictionary *mydatas =[NSJSONSerialization JSONObjectWithData:urlData options:kNilOptions error:&error];
When I'm using this code to retrieve the name:
NSString *name = [[mydatas objectForKey:#"content"] objectForKey:#"name"];
It terminate the program.
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFDictionary objectAtIndex:]: unrecognized selector sent to instance 0x71e3240'

Answer 1

Include SBJSon Framework from here
NSString *responseString = [[NSString alloc]initWithData: urlData encoding:NSUTF8StringEncoding];
//NSLog(#"%#",responseString);
NSDictionary * mydatas = [responseString JSONValue];
NSString *name = [[mydatas objectForKey:#"content"]objectForKey:#"name"];

Answer 2

content is an NSArray, not an NSDictionary. You need to use NSArray calls to retrieve the item in the array:
// Be sure to check that the array has at least one item or you'll throw an exception
NSArray *contentArray = [mydatas objectForKey:#"content"];
if ( contentArray.count > 0 ) {
NSString *image = [contentArray[0] objectForKey:#"name"];
}

Answer 3

Why you are not using the SBJSON framework . https://github.com/stig/json-framework/.
Then refer following SO question :How to parse JSON into Objective C - SBJSON . This will be easy for you to parse this data.

Answer 4

NSArray *contentArray = [mydatas objectForKey:#"content"];
[contentArray enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL *stop) {
NSLog(#"name of content at index %i is == %#",idx,[obj valueForKey:#"name"]);
}];

Answer 5

By looking at your JSON I can say,
Your mydatas dictionary contains 3 keys which are content, timestamp, error
The object for key content is an array. If you want to retrieve the object for key name you need to do the following
if([[mydatas objectForKey:#"content"] count]>0)
{
NSString *name = [[[mydatas objectForKey:#"content"] objectAtIndex:0]objectForKey:#"name"];
}
This will work.

Answer 6

try like this,
NSString *name = [[[mydatas objectForKey:#"content"] objectAtIndex:0]objectForKey:#"name"];

Answer 7

Try This One
NSMutableDictionary *mydatas =[NSJSONSerialization JSONObjectWithData:urlData options:kNilOptions error:&error];
Save it to Array
NSArray *array = [mydatas objectForKey:#"content"];
for (int i=0; i<[array count]; i++) {
NSMutableDictionary *dic = [[NSMutableDictionary alloc] init];
[dic setValue:[[array objectAtIndex:i] valueForKey:#"info"] forKey:#"info"];
[someArray addObject:dic];
[typeArray addObject:[[dic valueForKey:#"info"] valueForKey:#"type"] valueForKey:#"name"]];
NSString * NameStr = [typeArray objectAtIndex:i];
NSLog(#"String For Name : %#",NameStr);
[dic release];
}
Hope its Work!!!!!!!!!!!