In objective-C when you sent a message to a nil object, it will return a zero value. It is a header file that got the default name form the target that you can easily modify as per need. Once the objective-C file is added to the Swift target Xcode develops a bridging header. As swif cannot have subclasses, you can use two files that contain an interface section in the header file & implementation section in another.

Instead of converting all the class at once, it’s better to convert one class at a time. Let’s dive into the process of converting your mobile app from objective-c to Swift: Converting one Class at a Time: Today many iPhone app development Agency are opting for this process as well. However, in the past few years, application developers are switching to Swift programming language over the object-c language.īecause of this, the migration process has also been increased for converting an objective-C app into a swift application.

Swift and Objective C are the two most popular programming languages that are used for iOS app development.

Objective c to swift migration