swiper.dart

 Container(
      height: 550,
      padding: EdgeInsets.only(left: 32.0),
      child: Swiper(
        // autoplay: true,
        itemCount: characters.length,
        itemWidth: MediaQuery.of(context).size.width - 2 * 64,
        layout: SwiperLayout.STACK,
        pagination: SwiperPagination(
          builder: DotSwiperPaginationBuilder(
            activeSize: 15.0,
            color: Colors.white24,
            activeColor: Colors.white,
          ),
        ),
        itemBuilder: (context, index) {
          return InkWell(
            onTap: () {
              Navigator.push(
                context,
                PageRouteBuilder(
                  pageBuilder: (context, a, b) => DetailPage(
                    charInfo: characters[index],
                  ),
                ),
              );
            },
          ),
        ),