How to Create an Objective-C Bridging Header to Use Code in Swift

When you want to start using your Objective-C code in Swift, you need to add import lines to a bridging header file. This allows your Swift code to work with your Objective-C code seamlessly. In this article, we will show you how to create an Objective-C bridging header and use it in your Swift project.

You can add as many import lines as you want to the bridging header file, which makes it easy to import all the Objective-C code you want to use in Swift. To start using your Objective-C code in Swift, simply add the following line to the bridging header file: `#import 'YourFile.h'`.

In addition to importing Objective-C code, Xcode also allows you to type text into its console when it prompts you for input, such as your Apple ID or 2FA code. This makes it easy to interact with your project and test different scenarios.

Using Xcode

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Although Xcode is a command-line app, all of the normal functionality works in Xcode, including building, running, and running tests. To create an Objective-C bridging header file, you simply need to drag some Objective-C code into your Swift project. Xcode will then prompt you with the message 'Would you like to configure an Objective-C bridging header?' Clicking on this option will create a new file called `YourProjectName-Bridging-Header.h` in your project.

However, creating the bridging header is only half the problem. Xcode has created the bridging header and modified your build settings so that it gets used, but it hasn't actually put anything into it. To add code to the bridging header, you need to manually edit the file and add import lines for each Objective-C file you want to use in Swift.

Creating a New Project

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To create a new project with an Objective-C bridging header, follow these steps:

1. Go to the File menu and select 'New' > 'Project'.

2. Select the 'Framework & Library' template and click on the 'Next' button.

3. Enter a name for your project (e.g., 'InfColorPicker') and click on the 'Next' button.

4. Select a location to save the project and click on the 'OK' button.

Requirements

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To create an Objective-C bridging header, you need Xcode 13 or later. If you don't have Xcode installed, you can download it from the Apple Developer website.

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In this article, we showed you how to create an Objective-C bridging header and use it in your Swift project. This allows you to import Objective-C code into your Swift app and use it seamlessly. By following these steps, you can easily integrate your existing Objective-C code with your new Swift project.

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