Can't inject into Application class

[forntoh]

I am trying to inject a WorkManagerFactory into my Application class, I get the following error for the dependencies needed

[Dagger/MissingBinding] retrofit2.Retrofit.Builder cannot be provided without an @Inject constructor or an @Provides-annotated method.

The app builds successfully when I just remove the field in the Application class but I need it to inject dependencies into my WorkManager

Application class

@HiltAndroidApp
class App : Application(), Configuration.Provider {

    @Inject
    lateinit var refreshTokenSchedulerFactory: RefreshTokenSchedulerFactory

    override fun onCreate() {
        super.onCreate()
        FirebaseCrashlytics.getInstance().sendUnsentReports()
    }

    override fun getWorkManagerConfiguration(): Configuration =
            Configuration.Builder()
                    .setMinimumLoggingLevel(android.util.Log.DEBUG)
                    .setWorkerFactory(refreshTokenSchedulerFactory)
                    .build()
}

Work Manager factory

class RefreshTokenSchedulerFactory @Inject constructor(
        val preferencesHelper: PreferencesHelper,
        val dataManagerAuth: DataManagerAuth
) : WorkerFactory() {

    override fun createWorker(appContext: Context, workerClassName: String, workerParameters: WorkerParameters): ListenableWorker? =
            RefreshTokenScheduler(appContext, workerParameters, preferencesHelper, dataManagerAuth)
}

NetworkModule

@Module
@InstallIn(ActivityComponent::class)
object NetworkModule {

    @Provides
    fun provideBaseOkHttpClient(
            ikorInterceptor: IkorInterceptor,
            httpLoggingInterceptor: HttpLoggingInterceptor,
            connectivityInterceptor: ConnectivityInterceptor,
            receivedCookiesInterceptor: ReceivedCookiesInterceptor,
            sslSocketFactory: SSLSocketFactory,
            trustManager: TrustManager
    ): OkHttpClient = OkHttpClient.Builder()
            .sslSocketFactory(sslSocketFactory, trustManager as X509TrustManager)
            .hostnameVerifier(HostnameVerifier { _, _ -> true })
            .connectTimeout(60, TimeUnit.SECONDS)
            .readTimeout(60, TimeUnit.SECONDS)
            .addInterceptor(httpLoggingInterceptor)
            .addInterceptor(connectivityInterceptor)
            .addInterceptor(ikorInterceptor)
            .addInterceptor(receivedCookiesInterceptor)
            .build()

    @Provides
    fun provideHttpLoggingInterceptor(): HttpLoggingInterceptor = HttpLoggingInterceptor()
            .setLevel(HttpLoggingInterceptor.Level.BODY)

    @Provides
    fun provideIkorInterceptor(preferencesHelper: PreferencesHelper): IkorInterceptor = IkorInterceptor(preferencesHelper)

    @Provides
    fun provideConnectivityInterceptor(@ApplicationContext context: Context): ConnectivityInterceptor = ConnectivityInterceptor(context)

    @Provides
    fun provideReceivedCookiesInterceptor(preferencesHelper: PreferencesHelper): ReceivedCookiesInterceptor = ReceivedCookiesInterceptor(preferencesHelper)

    @Provides
    fun provideRetrofitBuilder(): Retrofit.Builder = Retrofit.Builder()
            .baseUrl(BaseUrl.defaultBaseUrl)
            .addConverterFactory(NullOnEmptyConverterFactory())
            .addConverterFactory(ScalarsConverterFactory.create())
            .addConverterFactory(GsonConverterFactory.create())
            .addCallAdapterFactory(RxJava2CallAdapterFactory.create())
}

BaseApiManager

class BaseApiManager @Inject constructor(
        retrofitBuilder: Retrofit.Builder,
        baseOkHttpClient: OkHttpClient
) {
...
}

DataManagerModule

@Module
@InstallIn(ActivityComponent::class)
object DataManagerModule {

    @Provides
    fun provideDataManagerAuth(
            baseApiManager: BaseApiManager
    ): DataManagerAuth = DataManagerAuth(baseApiManager)
    ...
}

DataManagerAuth

@Singleton
class DataManagerAuth @Inject constructor(
        private val baseApiManager: BaseApiManager
) {
...
}

[manuelvicnt]

Hi! Have you removed the default initialiser from the AndroidManifest.xml file? The Hilt docs mention it.

See this other link to the WorkManager docs to do that.

[manuelvicnt]

Also, your modules are installed in the ActivityComponent instead of the ApplicationComponent or SingletonComponent. If you're trying to inject that info in an Application, those bindings should be available there

[forntoh]

Thanks a lot, I made the module to be installed in ApplicationComponent, and have started using hilt's work manager factory.