TasksFragment.kt

// Definition of the provided dependencies of the MainActivity 
class MainActivityDependencies(private val activity: FragmentActivity) : Dependencies {

    override fun taskRepository(): TasksRepository {
        return TasksRepository.getInstance(TasksRemoteDataSource.instance, TasksLocalDataSource.getInstance(activity))
    }

    fun mainViewModel(): MainViewModel = ViewModelProviders.of(activity).get(MainViewModel::class.java)

    fun tasksActions(): TasksActions = mainViewModel()

    fun addEditActions(): AddEditActions = mainViewModel()
}


// TasksFragment when creating the view model,
// method will be called when the ViewModelFactory needs a ViewModel in the BaseReactFragment
override fun createViewModel() : TasksViewModel {
        val dependencies = (activity as DependencyProvider<MainActivityDependencies>).dependencies
        return TasksViewModel(dependencies.taskRepository(), dependencies.tasksActions())
}