Main point of Application Delegate class

Posted by ahmet732 on Stack Overflow See other posts from Stack Overflow or by ahmet732
Published on 2010-04-14T13:33:02Z Indexed on 2010/04/14 14:03 UTC
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What's the main point behind putting variables and method signatures inside ApplicationDelegate.h in Objective-C ? By doing this, all those methods and variables are seen by another view controller classes? Is that the point?

And also: is there only one application delegate class inside each project?

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