Inject ViewModel using Dagger 2 + Kotlin + ViewModel

Question

class SlideshowViewModel : ViewModel() {

@Inject lateinit var mediaItemRepository : MediaItemRepository

fun init() {
    What goes here?
}

So I\'m tr

Answer 1

No. You create a component where you are declaring (using) your viewModel. It is normally an activity/fragment. The viewModel has dependencies (mediaitemrepository), so you need a factory. Something like this:

    class MainViewModelFactory (
            val repository: IExerciseRepository): ViewModelProvider.Factory {

        @Suppress("UNCHECKED_CAST")
        override fun  create(p0: Class?): T {
            return MainViewModel(repository) as T
        }
    }

Then the dagger part (activity module)

    @Provides
    @ActivityScope
    fun providesViewModelFactory(
            exerciseRepos: IExerciseRepository
    ) = MainViewModelFactory(exerciseRepos)

    @Provides
    @ActivityScope
    fun provideViewModel(
            viewModelFactory: MainViewModelFactory
    ): MainViewModel {
        return ViewModelProviders
                .of(act, viewModelFactory)
                .get(MainViewModel::class.java)
    }