Nimrodda

interface ViewModelAssistedFactory<T : ViewModel> {
    fun create(handle: SavedStateHandle): T
}

Nimrodda

class DetailViewModel @AssistedInject constructor(
    private val githubApi: GithubApi,
    @Assisted private val handle: SavedStateHandle
) : ViewModel() {
    fun loadData() {
        val id = handle["id"] ?: "default"
        viewModelScope.launch {
            val response = githubApi.getCommit(id)
            // Handle response
        }

Nimrodda

compileOnly("com.squareup.inject:assisted-inject-annotations-dagger2:0.3.3")
kapt("com.squareup.inject:assisted-inject-processor-dagger2:0.3.3")

Nimrodda

class DetailViewModel @Inject constructor(
    private val githubApi: GithubApi,
    private val handle: SavedStateHandle
) : ViewModel() {
    fun loadData() {
        val id = handle["id"] ?: "default"
        viewModelScope.launch {
            val response = githubApi.getCommit(id)
            // Handle response
        }

Nimrodda

@Module
abstract class DetailModule {
    @Binds
    @IntoMap
    @ViewModelKey(DetailViewModel::class)
    abstract fun bindViewModel(viewModel: DetailViewModel): ViewModel
}

Nimrodda

class ViewModelFactory @Inject constructor(
    private val creators: MutableMap<Class<out ViewModel>, Provider<ViewModel>>
) : ViewModelProvider.Factory {
    override fun <T : ViewModel> create(modelClass: Class<T>): T {
        return creators[modelClass]?.get() as? T 
            ?: throw IllegalArgumentException("The requested ViewModel isn't bound") 
    }
}

Nimrodda

class DetailActivity : AppCompatActivity() {
    private val githubApi = GithubApi()

    private val viewModel by viewModels { DetailViewModelFactory(githubApi, this) }

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        // Use viewModel here
        viewModel.loadData()
    }

Nimrodda

class DetailViewModelFactory(
    private val githubApi: GithubApi,
    owner: SavedStateRegistryOwner,
    defaultArgs: Bundle? = null
) : AbstractSavedStateViewModelFactory(owner, defaultArgs) {
    override fun <T : ViewModel> create(
        key: String,
        modelClass: Class<T>,
        handle: SavedStateHandle
    ): T {

Nimrodda

class DetailViewModel(
    private val githubApi: GithubApi,
    private val handle: SavedStateHandle
) : ViewModel() {
    fun loadData() {
        val id = handle["id"] ?: "default"
        viewModelScope.launch {
            val response = githubApi.getCommit(id)
            // Handle response
        }

Nimrodda

class DetailActivity : AppCompatActivity() {
    private val viewModel: DetailViewModel by viewModels()

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        // Use viewModel here
    }
}