Sorting Array Of two different object using NSSortDescriptor

I have an array which have two types of Objects i.e (Object1 , Object2). Object1 has attribute named as "title" and Object2 has attribute named as "name".

Now i want to sort the array alphabetically. So is there any way so that i sort the array containing the objects with different AttributesName using NSSortDescriptor (or any other thing)?

You can use following code to compare your array containing objects of different type and value.

    arraySortedValues = [[arrayValues sortedArrayUsingComparator:^NSComparisonResult(id obj1, id obj2) {
        NSString *string1 = @"";
        NSString *string2 = @"";
        if ([obj1 isKindOfClass:[Object1 class]]) {
            string1 = [obj1 valueForKey:@"title"];
        }
        if ([obj2 isKindOfClass:[Object1 class]]) {
            string2 = [obj2 valueForKey:@"title"];
        }
        if ([obj1 isKindOfClass:[Object2 class]]) {
            string1 = [obj1 valueForKey:@"name"];
        }
        if ([obj2 isKindOfClass:[Object2 class]]) {
            string2 = [obj2 valueForKey:@"name"];
        }
        return [string1 compare:string2];
    }] mutableCopy];

Hope this helps and let me know.. :)