How can I import Swift code to Objective-C?

importing swift into objective-c
import swift framework in objective-c
call swift viewcontroller from objective-c
initialize swift class in objective-c
swift class not visible in objective-c
swift.h file not found
use swift struct in objective-c
use swift protocol in objective-c

I have written a library in Swift and I wasn't able to import it to my current project, written in Objective-C.

Are there any ways to import it?

#import "SCLAlertView.swift" - 'SCLAlertView.swift' file not found

Importing Swift into Objective-C, You can work with types declared in Swift from within the Objective-C code in your project by importing an Xcode-generated header file. This file is an  Create a new Project in Objective-C. Create a new .swift file. A popup window will appear and ask "Would You like to configure an Objective-C bridging Header". Choose Yes. Click on your Xcode Project file. Click on Build Settings. Find the Search bar and search for Defines Module. Change value to Yes.


Instructions from the Apple website:

To import Swift code into Objective-C from the same framework

Under Build Settings, in Packaging, make sure the Defines Module setting for that framework target is set to Yes. Import the Swift code from that framework target into any Objective-C .m file within that framework target using this syntax and substituting the appropriate names:

#import "ProductName-Swift.h"

Revision:

You can only import "ProductName-Swift.h" in .m files.

The Swift files in your target will be visible in Objective-C .m files containing this import statement.

To avoid cyclical references, don’t import Swift into an Objective-C header file. Instead, you can forward declare a Swift class to use it in an Objective-C header. Note that you cannot subclass a Swift class in Objective-C.

How can I import Swift code to Objective-C?, Here's what to do: Create a new Project in Objective-C. Create a new .swift file. Click on your Xcode Project file. Click on Build Settings. Find the Search bar and search for Defines Module. Change value to Yes. Search Product Module Name. Change the value to the name of your project. Import Swift code into Objective-C within the same framework: Under Build Settings, in Packaging, make sure the Defines Module setting for that framework target is set to Yes. Import the Swift code from that framework target into any Objective-C .m file within that target using this syntax and substituting the appropriate names:


Importing Objective-C into Swift, How do you call a swift method in Objective C? You can only import “ProductName-Swift.h” in .m files. The Swift files in your target will be visible in Objective-C .m files containing this import statement. To avoid cyclical references, don’t import Swift into an Objective-C header file. Instead, you can forward declare a Swift class to use it in an Objective-C header.


If you're using Cocoapods and trying to use a Swift pod in an ObjC project you can simply do the following:

@import <FrameworkName>;

Welcm Software Blog, originally. This makes creating mixed-language app and framework targets as straightforward as creating an app or framework target written in a single language. To import a set of Objective-C files into Swift code within the same app target, you rely on an Objective-C bridging header file to expose those files to Swift. Xcode offers to create this header when you add a Swift file to an existing Objective-C app, or an Objective-C file to an existing Swift app.


Go to build settings in your project file and search for "Objective-C Generated Interface Header Name. The value of that property is the name that you should include.

If your "Product Module Name" property (the one that the above property depends on by default) varies depending on whether you compile for test/debug/release/etc (like it does in my case), then make this property independent of that variation by setting a custom name.

Objective-C: Forward Class Declaration, are mainly to avoid circular imports, where one file imports another file which imports the first file etc. Basically when you import a file, contents of the file are substituted at the point of import when you build your project, which is then fed to the compiler. To import a set of Swift files in the same framework target as your Objective-C code, you don’t need to import anything into the umbrella header for the framework. Instead, import the Xcode-generated header file for your Swift code into any Objective-C .m file you want to use your Swift code from.


import swift class in objective-c, <myModule>-Swift.h file not found , I want to import Swift class in objective-c code. In xcode, target -> Build Settings--​> Swift Compiler section, I see Objective-C Generated Interface  The most effective approach for migrating code to Swift is on a per-file basis—that is, one class at a time. Because you can’t subclass Swift classes in Objective-C, it’s best to choose a class in your app that doesn’t have any subclasses.


Import code between Swift and Objective-C, To import a set of Objective-C files in the same app target as your Swift code, you rely on an Objective-C bridging header to expose those files  To import a set of Objective-C files into Swift code within the same app target, you rely on an Objective-C bridging header file to expose those files to Swift. Xcode offers to create this header when you add a Swift file to an existing Objective-C app, or an Objective-C file to an existing Swift app.


How to use Swift classes in Objective-C, It is possible to use Swift classes from Objective-C code (and vice to import a magically generated Swift Header into our Objective-C class,  To import a set of Objective-C files in the same app target as your Swift code, you rely on an Objective-C bridging header to expose those files to Swift. Xcode offers to create this header file when you add a Swift file to an existing Objective-C app, or an Objective-C file to an existing Swift app. In case your