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@Module(includes = {
        BaseFragmentModule.class
},
        subcomponents = Example3ChildFragmentSubcomponent.class)
abstract class Example3ParentFragmentModule {

    // TODO (ContributesAndroidInjector) remove this in favor of @ContributesAndroidInjector
    @Binds
    @IntoMap
    @FragmentKey(Example3ChildFragment.class)

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public final class Example3ParentFragment extends BaseFragment implements View.OnClickListener {

    ...
      
    @Override
    public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);

        if (savedInstanceState == null) {
            addChildFragment(R.id.child_fragment_container, new Example3ChildFragment());

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@Module(includes = AndroidInjectionModule.class,
        subcomponents = {
                MainActivitySubcomponent.class,
                Example1ActivitySubcomponent.class,
                Example2ActivitySubcomponent.class
        })
abstract class AppModule {

    ...

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@Module(includes = BaseActivityModule.class,
        subcomponents = {
                Example2AFragmentSubcomponent.class,
                Example2BFragmentSubcomponent.class
        })
abstract class Example2ActivityModule {

    // TODO (ContributesAndroidInjector) remove this in favor of @ContributesAndroidInjector
    @Binds
    @IntoMap

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public final class Example2Activity extends BaseActivity {

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.example_2_activity);

        if (savedInstanceState == null) {
            addFragment(R.id.fragment_a_container, new Example2AFragment());
            addFragment(R.id.fragment_b_container, new Example2BFragment());

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@Module(includes = AndroidInjectionModule.class,
        subcomponents = {
                MainActivitySubcomponent.class,
                Example1ActivitySubcomponent.class
        })
abstract class AppModule {

    ...
      
    // TODO (ContributesAndroidInjector) remove this in favor of @ContributesAndroidInjector

vestrel00

@Module(includes = AndroidInjectionModule.class,
        subcomponents = MainActivitySubcomponent.class)
abstract class AppModule {

    // TODO (ContributesAndroidInjector) remove this in favor of @ContributesAndroidInjector
    @Binds
    @IntoMap
    @ActivityKey(MainActivity.class)
    abstract AndroidInjector.Factory<? extends Activity>
    mainActivityInjectorFactory(MainActivitySubcomponent.Builder builder);

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public final class Example1Activity extends BaseActivity {

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.example_1_activity);

        if (savedInstanceState == null) {
            addFragment(R.id.fragment_container, new Example1Fragment());
        }

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public final class Example1Fragment extends BaseFragment implements View.OnClickListener {

    @Inject
    SingletonUtil singletonUtil;

    @Inject
    PerActivityUtil perActivityUtil;

    @Inject
    PerFragmentUtil perFragmentUtil;

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// TODO (ContributesAndroidInjector) remove this in favor of @ContributesAndroidInjector
@PerActivity
@Subcomponent(modules = MainActivityModule.class)
public interface MainActivitySubcomponent extends AndroidInjector<MainActivity> {

    @Subcomponent.Builder
    abstract class Builder extends AndroidInjector.Builder<MainActivity> {
    }
}