xcode - How to Properly Initialize Koin in a KMM Application on the iOS Side? - Stack Overflow

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I’m working on a Kotlin Multiplatform Mobile (KMM) application and trying to set up dependency injection using Koin. The Android side works fine, but I’m running into issues when initializing Koin on the iOS side.

Here’s what I’ve done:

In iosMain, I created a KoinHelper object to handle Koin initialization:

object KoinHelper {
    fun doInitKoin() {
        IosModule.initKoin()
    }
}

object IosModule {
    fun initKoin() {
        CommonModule.initKoin(iosPlatformModule())
    }
}

Where CommonModule.initKoin() is a shared initialization function from the shared module, and iosPlatformModule() is an iOS-specific module.

On the Swift side, in iOSApp, I’m trying to call the initialization like this:

extension KoinHelper {
    func initKoin() {
        KoinHelperKt.doInitKoin()
    }
}

@main
struct iOSApp: App {
    @State private var isOnboardingCompleted = false
    private let viewModelHelper = OnboardingViewModelHelper()
    
    init() {
        // Initialize Koin when the app starts
        KoinHelper().doInitKoin()
        print("DEBUG: iOSApp - Koin initialized")
    }
    
    var body: some Scene {
        WindowGroup {
            ContentView()
        }
    }
}

Problem: When building in Xcode, I get the following error: Cannot find 'KoinHelperKt' in scope

I’m working on a Kotlin Multiplatform Mobile (KMM) application and trying to set up dependency injection using Koin. The Android side works fine, but I’m running into issues when initializing Koin on the iOS side.

Here’s what I’ve done:

In iosMain, I created a KoinHelper object to handle Koin initialization:

object KoinHelper {
    fun doInitKoin() {
        IosModule.initKoin()
    }
}

object IosModule {
    fun initKoin() {
        CommonModule.initKoin(iosPlatformModule())
    }
}

Where CommonModule.initKoin() is a shared initialization function from the shared module, and iosPlatformModule() is an iOS-specific module.

On the Swift side, in iOSApp, I’m trying to call the initialization like this:

extension KoinHelper {
    func initKoin() {
        KoinHelperKt.doInitKoin()
    }
}

@main
struct iOSApp: App {
    @State private var isOnboardingCompleted = false
    private let viewModelHelper = OnboardingViewModelHelper()
    
    init() {
        // Initialize Koin when the app starts
        KoinHelper().doInitKoin()
        print("DEBUG: iOSApp - Koin initialized")
    }
    
    var body: some Scene {
        WindowGroup {
            ContentView()
        }
    }
}

Problem: When building in Xcode, I get the following error: Cannot find 'KoinHelperKt' in scope

• ios
• xcode
• kotlin
• kotlin-multiplatform
• koin

Share Improve this question Follow edited Mar 16 at 22:10 Morozov asked Mar 16 at 21:58 MorozovMorozov 5,26066 gold badges4545 silver badges7777 bronze badges

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1 Answer 1

Sorted by: Reset to default 0

I solved this problem with next solution:

extension KoinHelper {
    func doInitKoin() {
        KoinHelper.shared.doInitKoinFromSwift()
    }
}

And modified code in iosMain:

object KoinHelper {
    fun initKoin() {
        IosModule.initKoin()
    }
    
    @OptIn(ExperimentalObjCName::class)
    @ObjCName("doInitKoinFromSwift")
    fun doInitKoinFromSwift() {
        initKoin()
    }
}

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