通过NSDictionary迭代时处理不同的对象类型

Question

for (NSArray *values in [serializedJSON allValues])

Sometimes the values in serializedJSON will be arrays, and sometimes they will be NSDictionaries. I would like to discriminate against one of them so I don't get any errors like I am now. So I only want the returning values in this case to be NSArrays, while in a second case I would only want them to be NSDictionaries.

Thanks in advanced!

If you need more info let me know

Answer 1

The standard, generic way to handle JSON is roughly as follows:

NSObject* jsonResult = [serializedJSON allValues];
if ([jsonResult isKindOfClass:[NSArray class]]) {
   <handle NSArray>
}
else if ([jsonResult isKindOfClass:[NSDictionary class]]) {
   <handle NSDictionary>
}
else if ([jsonResult isKindOfClass:[NSNumber class]]) {
   <handle NSNumber>
}
else if ([jsonResult isKindOfClass:[NSString class]]) {
   <handle NSString>
}
else if (jsonResult == [NSNull null]) {
   <handle null>
}