If you are interested in creating iOS applications, the first thing you have to ask yourself is which programming language to choose: the latest Swift or the time-tested Objective-C? It is very important to understand what you will do and what your goals are before choosing the programming language that suits you.
Objective-C is an object-oriented extension of the C language, which is based on Smalltalk paradigms. Besides, visit https://litslink.com/technologies/objective-c-development to learn more about Objective-C services. As reported by Statista, more smartphones run Apple iOS than any other operating system as of May 2020. The vast majority of apps in the App Store are written in this language, and it is fundamental to learning programming for iOS or macOS. Thus, knowledge of this programming language is a necessary minimum for an Apple developer career. The entire language model is based on sending messages to objects.
The creator of Objective-C, Brandon Cox, has set himself the task of solving the problem of code reuse. This greatly reduced the system resource requirements and allowed not only to improve code quality but also to improve performance.
So, we created a list of advantages of using Objective-C Objective-C as it offers users the ease of writing and understanding the code
Message-Oriented Language
Another feature of the language is that it is message-oriented, while C ++ is function-oriented. This means that it does not interpret method calls as a function call, but as sending a message (with a name and arguments) to an object, similar to what happens in Smalltalk. So, any object can be sent any message. Instead of processing a message, an object can simply send it to another object for processing (so-called delegation), in particular, this is how distributed objects can be easily implemented (that is, objects located in different address spaces and even on different computers). The binding of a message to the corresponding function occurs directly at the runtime.
Object-Oriented Programming Paradigm
One of the main roles in Objective-C is played by the main OOP paradigms. Being a superset of the C language, Objective-C itself inherited from the latter the syntax, the principles of work of data types and added from the no less important functions to the OPP – the description of methods and classes.
Another unique feature of the language is that it is weakly typed and has a dynamic data type system, which allows checking the type of an object before the compilation process is complete. Posting messages in Objective-C is a whole philosophy. When requesting an object through a message, the object itself may not respond. If a request is sent for a null pointer, then nothing terrible will happen, you simply will not receive a message in response.
Dynamic Typing
Dynamic typing of the language makes it easier for novice developers to create programs, which is a great advantage. A large amount of documentation, technical literature and a huge community will help you in mastering Objective-C, thereby saving you a lot of time and effort.
If you have studied one of the languages of the C family for some time, then the transition will take a small amount of time, it will be enough to get used to the Objective-C syntax. On the plus side, Apple has allowed Objective-C interoperability within Swift projects, allowing you to apply specific key points in the new programming language.
Stability
Since Swift is still evolving as a language, it has regular version updates, and applications written in Swift need to be migrated to the newest version. Logically, it takes time and money. When the application is written in Objective-C, these operations are unnecessary.
Easier Usage of Private APIs
In cases where a product requires a specific custom solution (such as a specific colour change or integration), Objective-C is easier to connect to private APIs. Since Swift is constantly evolving, it is unstable and this fact can lead to crashes due to this kind of connections.
Support for Older Versions
Objective-C effectively works with earlier versions of iOS and macOS, making it easier to create generic projects. Young Swift cannot boast of such an ability. Moreover, Objective-C is seamlessly compatible with C languages.
Long-Lasting Experience
All frameworks provided by Apple are based on Objective-C. The community of developers is constantly creating and making all the best for free access to a huge number of libraries that will simplify your application development. An iOS developer has at his or her disposal such useful frameworks and libraries as UI components, modern frameworks, libraries for networking, audio, video, graphics, animation, and files. You can also add game engines available for free to this list if you see yourself as a game developer and you like this direction. Thus, you can see that there are a lot of related materials that facilitate development. What to use when developing, and what not – depends only on you.
So, Objective-C has been proven over the years and there are over 1.2 million applications written in this programming language in the App Store. Most large companies use it in their projects and knowledge of this language will be an accompanying plus when applying for a job in one or another company. The transition to Swift does not go by leaps and bounds, and knowledge of Objective-C is a mandatory criterion in the resume.
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