Can I integrate koin in compose multiplatform with koin ViewModel??

[shohrab-swl]

val viewmodel: MyViewModel= getViewModel(
    key = MyViewModel::class.getFullName(),
    factory = viewModelFactory { MyViewModel(userDataRepository) }

Is it possible to koinInject??

[NikhilBhutani]

@shohrab-swl Yes, you can.
Inject ViewModelFactory and access it an Koin Object.

And in your composable use your above code snippet and instead of declaring
viewModelFactory { MyViewModel(userDataRepository) }
Instead get your koin generated viewmodelfactory object.

I have created an example here - https://github.com/NikhilBhutani/ComposeMultiplatformNewsAppDemo/blob/main/shared/src/commonMain/kotlin/com/niko/kmm/newsappdemocomposemultiplatform/di/PresentationModule.kt

[NikhilBhutani]

Hi @Alex009 , Can we please mark this as resolved ?

[shohrab-swl]

That code doesn't work when I create a new ViewModel.

[NikhilBhutani]

@shohrab-swl Can you please share your repo so that I can check whats not working for you? Or maybe you can clone my repo above and add api key to inspect how it's working. ? Let me know, glad to help out in any way.

[shohrab-swl]

NewsAppDemoComposeMultiplatform.zip

fun presentationModule() = module {
single {
viewModelFactory { NewsHomeViewModel(get()) }
}
single {
viewModelFactory { NewsDetailsViewModel(get()) }
}
}

object ViewModelsFac : KoinComponent {
fun getNewsHomeViewModelFactory() = get<ViewModelFactory>()
fun getNewsDetailsViewModelFactory() = get<ViewModelFactory>()
}

I just changed a few lines.

and i get this error

java.lang.ClassCastException: com.niko.kmm.newsappdemocomposemultiplatform.presentation.details.NewsDetailsViewModel cannot be cast to com.niko.kmm.newsappdemocomposemultiplatform.presentation.NewsHomeViewModel

[NikhilBhutani]

Thanks for sharing this @shohrab-swl , Can you please also add an issue in the original repo, I'll fix this.

[NikhilBhutani]

@shohrab-swl You can do this.

object ViewModelsFac : KoinComponent { fun getNewsHomeViewModelFactory() = viewModelFactory { NewsHomeViewModel(get()) } fun getNewsDetailViewModelFactory() = viewModelFactory { NewsDetailsViewModel() } }

and access it with getViewModel in your composable.

[slikasgiedrius]

It's hard to understand the concept, but I made it work based on this conversation. I suggest you to add this case to the instructions