How to separate string by space using Objective-C?

Question

Assume that I have a String like this:

hello world       this may     have lots   of sp:ace or little      space

I would like to seperate this

Answer 1

NSString *aString = @"hello world       this may     have lots   of sp:ace or little      space";
NSArray *array = [aString componentsSeparatedByCharactersInSet:[NSCharacterSet whitespaceCharacterSet]];
array = [array filteredArrayUsingPredicate:[NSPredicate predicateWithFormat:@"SELF != ''"]];