Note The iOS part of Compose Multiplatform is in Alpha. It may change incompatibly and require manual migration in the future. If you have any issues, please report them on GitHub.

PS This template is a fork from Jetbrains' compose multiplatform template

Warning You need a Mac with macOS to write and run iOS-specific code on simulated or real devices. This is an Apple requirement.

To work with this project, you need the following:

• A machine running a recent version of macOS
• JDK 17
• Xcode
• Android Studio
• The Kotlin Multiplatform Mobile plugin
• The CocoaPods dependency manager

Before you start, use the KDoctor tool to ensure that your development environment is configured correctly:

1. Install KDoctor with Homebrew:

   brew install kdoctor
   

2. Run KDoctor in your terminal:

   kdoctor
   

   If everything is set up correctly, you'll see valid output:

   Environment diagnose (to see all details, use -v option):
   [✓] Operation System
   [✓] Java
   [✓] Android Studio
   [✓] Xcode
   [✓] Cocoapods
   
   Conclusion:
     ✓ Your system is ready for Kotlin Multiplatform Mobile development!
   

Otherwise, KDoctor will highlight which parts of your setup still need to be configured and will suggest a way to fix them.

Open the project in Android Studio and switch the view from Android to Project to see all the files and targets belonging to the project:

Your Compose Multiplatform project includes 4 modules:

This is a Kotlin module that contains the logic common for desktop, Android, and iOS applications, that is, the code you share between platforms.

This shared module is also where you'll write your Compose Multiplatform code. In shared/src/commonMain/kotlin/App.kt, you can find the shared root @Composable function for your app.

It uses Gradle as the build system. You can add dependencies and change settings in shared/build.gradle.kts. The shared module builds into a Java library, an Android library, and an iOS framework.

This is a Kotlin module that builds into a desktop application. It uses Gradle as the build system. The desktopApp module depends on and uses the shared module as a regular library.

This is a Kotlin module that builds into an Android application. It uses Gradle as the build system. The androidApp module depends on and uses the shared module as a regular Android library.

This is an Xcode project that builds into an iOS application. It depends on and uses the shared module as a CocoaPods dependency.

To run your desktop application in Android Studio, select desktopApp in the list of run configurations and click Run:

You can also run Gradle tasks in the terminal:

• ./gradlew run to run application
• ./gradlew package to store native distribution into build/compose/binaries

To run your application on an Android emulator:

1. Ensure you have an Android virtual device available. Otherwise, create one.

2. In the list of run configurations, select androidApp.

3. Choose your virtual device and click Run:

   
   

To run your application on an iOS simulator in Android Studio, modify the iosApp run configuration:

1. In the list of run configurations, select Edit Configurations:

   

2. Navigate to iOS Application | iosApp.

3. In the Execution target list, select your target device. Click OK:

   

4. The iosApp run configuration is now available. Click Run next to your virtual device:

You can run your Compose Multiplatform application on a real iOS device for free. To do so, you'll need the following:

• The TEAM_ID associated with your Apple ID
• The iOS device registered in Xcode

Note Before you continue, we suggest creating a simple "Hello, world!" project in Xcode to ensure you can successfully run apps on your device. You can follow the instructions below or watch this Stanford CS193P lecture recording.

In the terminal, run kdoctor --team-ids to find your Team ID. KDoctor will list all Team IDs currently configured on your system, for example:

3ABC246XYZ (Max Sample)
ZABCW6SXYZ (SampleTech Inc.)

To run the application, set the TEAM_ID:

1. In the template, navigate to the iosApp/Configuration/Config.xcconfig file.
2. Set your TEAM_ID.
3. Re-open the project in Android Studio. It should show the registered iOS device in the iosApp run configuration.

To get a better understanding of this project's setup and learn how to configure the basic properties of your iOS app without Xcode, open the iosApp/Configuration/Config.xcconfig file in Android Studio. The configuration file contains:

• APP_NAME, a target executable and an application bundle name.
• BUNDLE_ID, which uniquely identifies the app throughout the system.
• TEAM_ID, a unique identifier generated by Apple that's assigned to your team.

To configure the APP_NAME option, open Config.xcconfig in any text editor before opening the project in Android Studio, and then set the desired name.

If you need to change this option after you open the project in Android Studio, do the following:

1. Close the project in Android Studio.
2. Run ./cleanup.sh in your terminal.
3. Change the setting.
4. Open the project in Android Studio again.

To configure advanced settings, use Xcode. After opening the project in Android Studio, open the iosApp/iosApp.xcworkspace file in Xcode and make changes there.

Now you are ready to fly ✈️, this project was configured, built and made with ❤️ by Ahmed Nassar, for any questions, enhancements, new feature enquiries or bug fixes please head to Issues Section and don't hesitate to share with me your thoughts 👀.

Happy coding 💻.