Question

I have a NSArray that is filled with different types of objects. Lets say one is a NSDictionary and another is NSData.
How would I randomly chose a object from this array and then check what kind of object it is.
So if it a NSDictionary, I will do method A.
Or if it is NSData, I will do method B.

How would I put this into code?

Thanks!

Answer 1

Translated to Objective-C

 id obj = [array methodThatReturnsARandomObject];
 if ([obj isKindOfClass:[NSDictionary class]]) {
    a();
 } else if ([obj isKindOfClass:[NSData class]]) {
    UIImage *image = [UIImage imageWithData:obj]
 }

Or you can do

 NSObject *obj = [array methodThatReturnsARandomObject];
 if ([obj isKindOfClass:[NSDictionary class]]) {
    a();
 } else if ([obj isKindOfClass:[NSData class]]) {
    UIImage *image = [UIImage imageWithData:(NSData *)obj]
 }

Does not really matter.