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Asked: 2026-06-14T03:06:54+00:00

I can’t understand what this code does: AppDelegate *appDelegate = [[UIApplication sharedApplication] delegate]; can

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I can’t understand what this code does:

AppDelegate *appDelegate =
 [[UIApplication sharedApplication] delegate];

can somebody explain it to me please??

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1 Answer

  1. Editorial Team

    You are getting a pointer to the Application Delegate.

    [UIApplication sharedApplication]

    returns you a pointer to your application instance (singleton instance, only one instance of that object is permitted, and it’s returned by the “sharedApplication” method).

    Then, “delegate” returns the delegate of this UIApplication instance, that usually is implemented in the AppDelegate.m and AppDelegate.h files of your application and it’s of AppDelegate Class.

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