swipperController.next() and swipperController.previous() does not change the selected card

[JoaoSaran]

I'm doing some tests and I'm calling swipperController.previous inside the onIndexChanged method of the swipper. Both next() and previous() have no effect whatsoever. Here is the code Im using:

_listPerguntas.isNotEmpty 
         ?  Swiper(
              itemCount: _listPerguntas.length,
              controller: _swiperController,
              loop: false,
              layout: SwiperLayout.TINDER,
              itemWidth: MediaQuery.of(context).size.width * 0.8,
              itemHeight: MediaQuery.of(context).size.width * 0.5,
              itemBuilder: (BuildContext context, int index) {
                return _listPerguntas[index];
              },
              onIndexChanged: (index) {
               print('index changed');
                _swiperController.previous();
              },
            )
         :  Container(),
            

is the implementation wrong or is this a legit issue?