Simple ViewModel Dagger Injection

SomeFragment.kt

import androidx.fragment.app.viewModels
import dagger.android.support.DaggerFragment

class SomeFragment : DaggerFragment() {

    @Inject
    lateinit var viewModelFactory: ViewModelFactory<SomeViewModel>

    private val viewModel: SomeViewModel by viewModels { viewModelFactory }

    @Inject
    lateinit var parentViewModelFactory: ViewModelFactory<ParentViewModel>
  
    private val parentViewModel: ParentViewModel by viewModels(
        { requireActivity() },
        { parentViewModelFactory }
    )
}

ViewModelFactory.kt

import androidx.lifecycle.ViewModel
import androidx.lifecycle.ViewModelProvider
import javax.inject.Inject
import javax.inject.Provider

class ViewModelFactory<T : ViewModel>
@Inject constructor(
    private val provider: Provider<T>
) : ViewModelProvider.Factory {

    @Suppress("UNCHECKED_CAST")
    override fun <T : ViewModel> create(modelClass: Class<T>): T {
        return provider.get() as T
    }
}