Objective-C to Swift Migrating

Objective-C to Swift Migrating

In June 2014, Apple launched a new programming language called Swift with an aim to create a better programming environment by tools that make the coding a lot easier for beginners as well as experienced developers.

It was introduced as “Objective-C without C” with the goal to speed up the development of iOS Development by covering the inadequacies of Objective-C. Before we migrate to Swift for our remaining iOS development tutorials there are a few doubts that must be going through every developer’s mind that need to be sorted out now.

I’m iOS Development beginner now, do I need to learn Objective-C first?

Objective-C is an established language and it’s there for 30 years. Moreover, most of the frameworks are written in Objective-C. The majority of apps on the App Store are developed in Objective-C. So, in the future, if you get a task to migrate the code to Swift for any of those apps, it’s better to be well versed with Objective-C first.

Besides, if you’re using a native library that’s in C++ or C and are using a lot of C functions, that’s when knowing Objective-C is a must. Last but not the least the open source communities have been talking in Objective-C all this while. Most of the code snippets available on these open source forums are written in Objective-C. These reasons are enough to justify why a good look at Objective-C is important. 

Why developers are Migrating to Swift when Objective-C is easier to learn?

True. Objective-C being an extension of C is easier to learn and it requires the developer to be more explicit in their code. Other than this Swift has it’s set of advantages over Objective-C. A few of them are listed below.

  • Swift isn’t built on C hence it’s syntax is simpler. We can remove the @ from the numerous strings in Objective-C.
  • There’s no need for semicolons/parentheses in conditional statements
  • Swift is type-safe which means the language helps us to be clear about the types of values
  • With Swift, we get Automatic Reference Counting which eases our task by removing the overhead of explicit memory management that had to be specified in Objective-C
  • Swift is faster. Libraries handle most of the OSX and iOS user references. According to Apple, development in Swift is 73 percent faster than in Objective-C
  • Finally, Swift is made in such a way that it’s compatible with Objective-C. Swift codes can be written inside Objective-C and vice-versa

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