iPhone interview questions with answers part- II

This is continuation for  iOS interview questions with answers.  *Q: What is Controller Object? A: A controller object acts as a coordinator or as an intermediary between one or more view objects and one or more model objects. In the Model-View-Controller design pattern, a controller object (or, simply, a controller) interprets user actions and intentions…

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Acquiring Foundational Programming Skills in Objective-c

The Foundation framework, as its name suggests, is the foundational toolkit for all programming for both iOS and OS X. You need to become familiar with this toolkit to be a successful developer for these platforms. Foundation defines dozens of classes and protocols for a variety of purposes, but three categories of classes and protocols…

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Introduction to Objective-C code

  Objective-C is an elegant object-oriented language that powers all iOS apps. You write Objective-C code to create your app, and you need to understand this language in order to use most application frameworks. Although you can use other languages for development, you can’t build an iOS app without Objective-C. Objective-C is a simple language…

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