If category is used, you can use same class, no need to remember a new class-name. Category created on a base class is available on sub classes.
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With Storyboards, all screens are stored in a single file. This gives you a conceptual overview of the visual representation for the app an...
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Objective C Step 1) //Add below code in AppDelegate.h @property (retain, nonatomic) UIWindow *window; @property (nonatomic,retain) UI...
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The Application Kit is a framework containing all the objects you need to implement your graphical, event-driven user interface: windows, p...