https://medium.com/@andrzejchm/presentation-model-and-passive-view-in-mvp-the-android-way-fdba56a35b1e

GoodPresenter.java

public class GoodPresenter extends SimpleDroidMVPPresenter<GoodView,GoodPresentationModel> {

    public void onShowUsersButtonClicked() {
        getMvpView().showProgress();
        repository.getUsers(new Callback() {
            public void onSuccess(List<Users> users) {
                usersListFetched(users);
            }

            public void onFailure(Exception e) {
                usersListFetchError(e);
            }
        })
    }

    private void usersListFetched(List<Users> users) {
        PresentationModel model = getPresentationModel();
        model.setUsers(users);
        if (getMvpView() == null) {
            return;
        }
        if (model.shouldDisplayEmptyState()) {
            getMvpView().showEmptyState();
        } else {
            getMvpView().showUsersList(model.getAllUsers());
        }
        if(model.hasAnyUserBirthdayToday()) {
            getMvpView().showBirthdayAlert(model.getUsersWithBirthday());
        }
    }

    private void usersListFetchError(Exception e) {
        getPresentationModel().setUsersListFetchError(e);
        if (getMvpView() != null) {
            getMvpView().showUsersListFetchError();
        }
    }
}