Objective C iterate over and NSDictionary within an NSDictionary - ios

Question

I am trying to loop over a neatest NSDictionary within a NSDictionary.
currently I have this and this returns the first NSDictionary items
NSDictionary *json = [NSJSONSerialization JSONObjectWithData:response
for (NSString *tempObject in json ) {
NSLog(#"Single element: %#", tempObject);
}
The Above works fine
however I wish to read a array layer lower and the blow is failing,
NSDictionary *json = [NSJSONSerialization JSONObjectWithData:response options:kNilOptions error:&error];
for (id tempObject in json ) {
NSLog(#"Object: %#, Key: %#", [json objectForKey:tempObject], tempObject);
}
Thanks Mich

Answer 1

It's always good to check whether the deserialized object contains ARRAY or DICTIONARY within. You can check the type of object before trying to access it. Something like this.
NSDictionary *json = [NSJSONSerialization JSONObjectWithData:response options:kNilOptions error:&error];
for (id jsonObject in json ) {
NSLog(#"Object: %#, Key: %#", [json objectForKey:tempObject], tempObject);
if ([jsonObject isKindOfClass:[NSDictionary class]]){
NSDictionary *deserializedDictionary = jsonObject;
NSLog(#"Deserialized JSON Dictionary = %#",
deserializedDictionary);
}
else if ([jsonObject isKindOfClass:[NSArray class]]){
NSArray *deserializedArray = (NSArray *)jsonObject;
NSLog(#"Deserialized JSON Array = %#", deserializedArray);
}
else {
/* Some other object was returned. We don't know how to
deal with this situation as the deserializer only
returns dictionaries or arrays */
}
}
Hope it helps you!!

Answer 2

NSDictionary *json = [NSJSONSerialization JSONObjectWithData:response options:kNilOptions error:&error];
for (NSString *tempObject in json ) {
NSLog(#"Object: %#, Key: %#", [json objectForKey:tempObject], tempObject);
NSLog(#"Object: %#, Key: %#", [json valueForKey:tempObject], tempObject);
}
//OR by using fast enumeration
[json enumerateKeysAndObjectsUsingBlock:^(id key, id object, BOOL *stop) {
NSLog(#"####Key Value is:%# = %#", key, object);
}];
Hope it helps you....!