Find The Documents Directory

NSString* docPath = [NSHomeDirectory() stringByAppendingPathComponent:@"Documents"];

In App Advertisement SDK

Promote your app in other apps to increase downloads and get top ranked.

 

http://dev.pickzy.com/

Nil - NULL - NSNULL

There are 3 ways to represent a null value in Objective-C.

Nil            -> Absence of value with Objective-C object variables.

Null          -> Absence of value with C- style pointers.

NSNULL -> A nil boxed as an object for storage in a collection.