C: 4 - ui/example_1/presenter/Example1PresenterImpl.java

Example1PresenterImpl.java

@PerFragment
final class Example1PresenterImpl extends BasePresenter<Example1View> implements Example1Presenter {

    private final SingletonUtil singletonUtil;
    private final PerActivityUtil perActivityUtil;
    private final PerFragmentUtil perFragmentUtil;

    @Inject
    Example1PresenterImpl(Example1View view, SingletonUtil singletonUtil,
                          PerActivityUtil perActivityUtil, PerFragmentUtil perFragmentUtil) {
        super(view);
        this.singletonUtil = singletonUtil;
        this.perActivityUtil = perActivityUtil;
        this.perFragmentUtil = perFragmentUtil;
    }

    @Override
    public void onDoSomething() {
        // Do something here. Maybe make an asynchronous call to fetch data...
        String something = singletonUtil.doSomething();
        something += "\n" + perActivityUtil.doSomething();
        something += "\n" + perFragmentUtil.doSomething();
        view.showSomething(something);
    }
}