ARC is a compiler-level feature that simplifies the process of managing the lifetimes of Objective-C objects. Instead of you having to remember when to retain or release an object, ARC evaluates the lifetime requirements of your objects and automatically inserts the appropriate method calls at compile time.
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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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NSURLConnection is deprecated in OS X 10.11 and iOS 9.0 Advantage: NSURLSession also provides support for background downloads, ...
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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...
