NSJSONSerialization JSON parsing issue - ios

Question

I have a problem with parsing JSON.
Here's my code:
NSURL *url = [NSURL URLWithString:#"http://itunes.apple.com/lookup?bundleId=com.clickgamer.AngryBirds"]; //This URL only for testing
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
[request setHTTPMethod:#"GET"];
[NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse *response, NSData *data, NSError *connectionError) {
NSError *errorReturned = nil;
NSURLResponse *theResponse =[[NSURLResponse alloc]init];
NSError *jsonParsingError = nil;
NSDictionary *jsonArray = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers|NSJSONReadingAllowFragments error:&jsonParsingError];
NSString *myString = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
NSLog(#"Data = %# ", [[jsonArray objectForKey:#"results"] valueForKey:#"version"]);
}];
In Console it prints out: Data = (
"3.4.1"
)
But I want to have: Data = 3.4.1 What am I doing wrong?

Answer 1

seems valueForKey:#"version" returns an array with only one element.
try this:
NSLog(#"Data = %# ", [[[jsonArray objectForKey:#"results"]
valueForKey:#"version"]
objectAtIndex:0]);

Answer 2

try this:
NSDictionary *jsonArray = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:&jsonError];

Answer 3

If you try curl http://itunes.apple.com/lookup?bundleId=com.clickgamer.AngryBirds on the command line you can see from the output that the "results" object is an array so when you invoke the valueForKey method on the results array you get an array of all the #"version" keys in that array.
Example:
NSDictionary *test = #{#"results": #[#{#"version":#"1.0"}, #{#"version":#"2.0"}]};
NSLog(#"output: %#", [[test objectForKey:#"results"] valueForKey:#"version"]);
Output:
output: (
"1.0",
"2.0"
)
What you have to do is get the first object in the "results" array and get the version object from that eg.:
test[#"results"][0][#"version"]