Why? Step 3: Import Background Swift FileGenerated in Xcode to Allow Swift Objects in Objective-C At this stage, we can create objects of Objective-C classes in Swift, however, if we try to create Swift classes objects in Objective-C classes it will show an error. This bridge header file allows us to create Objective-C objects in Swift classes. Step 2: Import All Header Files Into a Bridge FileĪfter the bridge header file is setup, we will move all of our project header files from the Objective C classes that we want to use in Swift into this bridge-header file. So, the project is configured to work in mixed mode where the code can live as an Objective-C file or as a Swift file. The bridging header file allows your project to communicate with both Objective-C classes and Swift classes. Xcode automatically creates a file called 'bridging header' and another file in the background which we will talk about in a minute.

Now you will see the bridging header pop up in Xcode (see Figure 2). Write the name of the file and click the Create button. To create a Swift file, go to New File menu in Xcode and then select iOS source and then pick Swift file from the iOS Source menu. The first step is easy and as simple as creating a Swift file in the Objective-C app. Another guide for Swift () is there to help you get going. Here is a quick getting started to Swift article. To understand this article, you should be familiar with both Swift and Objective-C.

In this article, we will discuss how to convert a legacy iOS app written in Objective-C language to Swift without rewriting all the code from scratch. Apple promised that it is a lot faster and simpler than Objective-C. Apple launched its new native language called 'Swift' back in June 2014 for creating apps for iPhone, iPod, Apple Watch and other apple devices.

Swift to objective c converter