A: 8 - ui/example_3/Example3ActivityModule.java

Example3ActivityModule.java

@Module(includes = BaseActivityModule.class,
        subcomponents = Example3ParentFragmentSubcomponent.class)
abstract class Example3ActivityModule {

    // TODO (ContributesAndroidInjector) remove this in favor of @ContributesAndroidInjector
    @Binds
    @IntoMap
    @FragmentKey(Example3ParentFragment.class)
    abstract AndroidInjector.Factory<? extends Fragment>
    example3ParentFragmentInjectorFactory(Example3ParentFragmentSubcomponent.Builder builder);
}