Adding 2 keyvalues to list from JSON object

I want to append 2 key values from JSON object to my list in开发者_开发百科 iPhone app. Below is my code for that,

SBJsonParser *jsonParser = [[[SBJsonParser alloc] init] autorelease];
    NSString *jsonString=[[NSString alloc] initWithContentsOfURL:[NSURL URLWithString:@"http://test/json/json_data.php"]];

    id response = [jsonParser objectWithString:jsonString error:NULL];

    NSDictionary *feed = (NSDictionary *)response;
    list = (NSArray *)[feed valueForKey:@"fname"];

the above code properly displays the value from fname but what do i do if i want to add lname to it. for eg, my object is [{"fname":"Bill","lname":"Jones"},{"fname":"John","lname":"Jacobs"}] i want to display names as Bill Jones, John Jacobs and so on in the list. Currently it only displays Bill, John..I tried doing something like @"fname"@lname but it wont work..Can anybody please help me..

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An observation: the response from the JSON parser is not a dictionary, but an array given the string you pass in. Your code works because -valueForKey: is something an array will respond to. The array sends -valueforKey: to each element and builds an array out of the responses.

There are two ways you can do what you want (at least)

1. Iterate through the array explicitly

   NSMutableArray* list = [[NSMutableArray alloc] init];
   for (id anObject in response)
   {
       [list addObject: [NSString stringWithFormat: @"%@ %@", 
                                                    [anObject objectForKey: @"fName"], 
                                                    [anObject objectForKey: @"lname"]]];
   }
   

2. Add a category to NSDictionary

   @interface NSDictionary(FullName)
   -(NSString*) fullName;
   @end
   
   @implementation NSDictionary(FullName)
   
   -(NSString*) fullName
   {
       return [NSString stringWithFormat: @"%@ %@", 
                                          [self objectForKey: @"fName"], 
                                          [self objectForKey: @"lname"]];
   }
   
   @end
   

   Then your existing code changes to

   list = (NSArray *)[feed valueForKey:@"fullName"];