Bridging Swift to Objective-C
Learn to make Swift code accessible from Objective-C through the auto-generated Objective-C generated header.
Swift to Obj-C: The Bridge
Welcome! In mixed-language projects, you often need Swift code to talk to Objective-C code. This lesson focuses on making your modern Swift classes and methods accessible to older Objective-C files.
This "bridging" allows you to gradually introduce Swift into an existing Objective-C codebase or have parts of your app written in different languages.
The Auto-Generated Header
When you add Swift files to an Objective-C project, Xcode automatically generates a special header file for you. It's named ProductModuleName-Swift.h.
This header acts as a translator, exposing your Swift code to the Objective-C world. You don't create it; Xcode does all the work! You just need to import it.
All lessons in this course
- Bridging Objective-C to Swift
- Bridging Swift to Objective-C
- Creating Objective-C Frameworks
- Handling Nullability and Type Mapping Across the Bridge