AppComponent.java

// AppComponent.java 

@Singleton
@Component(modules = {
        AppModule.class,
        GithubApiModule.class
})
public interface AppComponent {
    UserComponent.Builder userComponentBuilder();
}


// UserComponent.java 

@UserScope
@Subcomponent(modules = UserModule.class)
public interface UserComponent {
    
    @Subcomponent.Builder
    interface Builder {
        UserComponent.Builder sessionModule(UserModule userModule);
        UserComponent build();
    }

    UserDetailsActivityComponent plus(UserDetailsActivityComponent.UserDetailsActivityModule module);
}

// UserDetailsActivityComponent.java 

@ActivityScope
@Subcomponent(modules = UserDetailsActivityComponent.UserDetailsActivityModule.class)
public interface UserDetailsActivityComponent {
    UserDetailsActivity inject(UserDetailsActivity activity);
}