Zhuinden

@ActivityRetainedScoped
class NavigationDispatcher @Inject constructor() {
    private val navigationEmitter: EventEmitter<NavigationCommand> = EventEmitter()
    val navigationCommands: EventSource<NavigationCommand> = navigationEmitter

    fun emit(navigationCommand: NavigationCommand) {
        navigationEmitter.emit(navigationCommand)
    }
}

Zhuinden

typealias NavigationCommand = (NavController) -> Unit

Zhuinden

inline fun <reified T : ViewModel> Fragment.hiltNavGraphViewModels(@IdRes navGraphIdRes: Int) =
    viewModels<T>(
        ownerProducer = { findNavController().getBackStackEntry(navGraphIdRes) },
        factoryProducer = { defaultViewModelProviderFactory } // TODO: FIX THIS. THIS ISN'T SUFFICIENT!!!
    )

Zhuinden

@AndroidEntryPoint
class LoginFragment : Fragment(R.layout.login_fragment) {
    private val viewModel by viewModels<LoginViewModel>()

Zhuinden

// dagger
implementation 'com.google.dagger:dagger:2.28'
kapt 'com.google.dagger:dagger-compiler:2.28'

// hilt
implementation 'com.google.dagger:hilt-android:2.28-alpha'
kapt 'com.google.dagger:hilt-android-compiler:2.28-alpha'
kaptAndroidTest 'com.google.dagger:hilt-android-compiler:2.28-alpha'
kaptTest 'com.google.dagger:hilt-android-compiler:2.28-alpha'
implementation 'androidx.hilt:hilt-lifecycle-viewmodel:1.0.0-alpha01'

Zhuinden

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/root"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <androidx.fragment.app.FragmentContainerView
        android:id="@+id/nav_host"
        android:name="androidx.navigation.fragment.NavHostFragment"

Zhuinden

class CreateLoginCredentialsFragment : KeyedFragment(R.layout.create_login_credentials_fragment) {
    private val viewModel by lazy { lookup<RegistrationViewModel>() }

    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
        super.onViewCreated(view, savedInstanceState)

        val binding = CreateLoginCredentialsFragmentBinding.bind(view)
        // ...
    }
}

Zhuinden

@Singleton 
class MyClass @Inject constructor(private val factory: D.Factory)

Zhuinden

@Singleton
@Component(modules = [
  AppModule::class,
  AssistedInjectionModule::class
])
interface SingletonComponent {
}

Zhuinden

@AssistedModule
@Module(includes = {AssistedInject_AssistedInjectionModule.class})
public class AssistedInjectionModule {}