@Override
 protected void onCreate(Bundle savedInstanceState) {
   super.onCreate(savedInstanceState);
   setContentView(R.layout.activity_event_create);
   ButterKnife.bind(this);
   presenter = FactoryHelper.getEventCreatePresenter(this);
   initFragments();
   presenter.onCreate();
 }
 @OnClick(R.id.btnBack)
 protected void onBack() {
   presenter.onBack();
 }
 @OnClick(R.id.btnNext)
 protected void onNext() {
   presenter.onNext();
 }
 @Override
 public void onInputSelected(Object input) {
   Toast.makeText(EventCreateActivity.this, ((Sensor) input).getName(), Toast.LENGTH_SHORT).show();
   presenter.onNext();
 }