List<Widget> w = [];
//Prima era così
//w = widget.product.images.map(.....) con un return di GestureDetector e non un w.add()
widget.product.images.map(
      (item) {
        Widget z = GestureDetector(
            child: Padding(
              padding: const EdgeInsets.all(8.0),
              child: Column(
                children: [
                  Stack(
                    children: [
                      ImageNetwork(src: item.src),
                      Positioned(
                        child: wElevatedButton(
                            onPressed: () {}, icon: Icons.delete),
                        bottom: 10,
                        right: 10,
                      ),
                      Positioned(
                        child: Text("Id: ${item.iid}"),
                        bottom: 10,
                      ),
                    ],
                  ),
                ],
              ),
            ),
            onTap: () {
              index = widget.product.images.indexOf(item);
              Navigator.push(
                context,
                PageTransition(
                  type: PageTransitionType.rightToLeftWithFade,
                  alignment: Alignment.bottomCenter,
                  child: Slideshow(images: widget.product.images, page: index),
                ),
              );
            });
        w.add(z);
      },
    ).toList();