Cocoa Touch is a user interface (UI) framework that provides an abstraction layer of the operating system (iOS) of iPhone, iPod touch, and iPad. Cocoa touch is primarily written in an Objective-C language and is used for building software applications for Apple products like iPhone, iPad and iPod Touch. It is based on Mac OS X and the high-level application programming interfaces help in making animations, networking and adding the appearance of the native platform to the developed applications.
If you’re in search of cocoa jobs, then you’re at right place. We’ve listed the most sought-after cocoa touch interview questions that are sure to help you out. If you’re planning to sit for an interview, then look no further and delve straight into the below-furnished question and answers.
Foundation framework provides a set of useful object classes and also introduces several paradigms that are not covered by Objective-C language. The foundation framework defines the base for Objective-C classes. It aids the task of software development by facilitating consistent conventions for deallocation. To enhance portability, Foundation framework provides a layer of OS independence. The foundation framework is grouped into value objects, collections, notifications, spotlight queries, predicates, and expressions, etc.
Some of the notable features of foundation framework are as follows:
Cocoas touch is an application framework for Apple products like iPad, iPhone and iPod Touch. It is basically a combination of Foundation Framework and UIKit Framework.
|In Objective-C, the method and the variable have to be of exactly the same name.||In C++, the name of the method and the variable has to be different.|
|The message overloading is faked by naming a parameter and we have to mangle the names manually.||C++ does the same work but instead of doing it manually, the compiler does the name mangling for us.|
|Object-C doesn’t have references.||C++ enjoys an advantage over Objective-C when it comes to references.|
|in Objective-C, templates are not available.||Templates are available in C++ because C++ has strong typing and static bidding.|
|For differentiating between class methods, Objective-C uses + and -.||For differentiating between class methods, C++ uses static to specify the factory method.|
Cocoa supports the following-
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