how to iterate nested dictionaries in objective-c iphone sdk

Question

Hi I have a json string converted unsing the JSON framework into a dictionary and I need to extract its content. How could I iterate to the nested dictionaries? I have alrea

Answer 1

I have tried recursion and hope this could help.
P.S. This will return the first occurrence of the key.

+(id)getValue:(NSDictionary*)aDictionary forKey:(NSString *)aKey {
   id finalValue = nil;
   for (id key in [aDictionary allKeys]) {
      id value = aDictionary[key];
      if (value != nil && [key isEqualToString:aKey]) {
         finalValue = value;
         break;
      }
      else if ([value isKindOfClass:[NSDictionary class]]) {
       finalValue = [[self class] getValue:value forKey:aKey];
      }
   }
   return finalValue;
}