//Component
@Singleton
@Component(modules = [AppModule::class, InjectorBuilderModule::class])
interface AppComponent : AndroidInjector<App>

//Module
@Module
class MainModule {

    @Provides
    internal fun provideViewModelFactory(): MainVMFactory {
        return MainVMFactory()
    }
}

//Application
class App : DaggerApplication() {

    override fun applicationInjector(): AndroidInjector<out DaggerApplication> {
        return DaggerAppComponent.builder().build()//.appModule(AppModule(this)).build()
    }
}

//in onCreate Activity
AndroidInjector.inject(this)