gridview_image_picker.dart

GridView.builder(
        itemCount: fileList.length,
      
        gridDelegate:
            const SliverGridDelegateWithFixedCrossAxisCount(crossAxisCount: 3),
        itemBuilder: (BuildContext context, int i) {
          return Container(
            padding: const EdgeInsets.all(10),
            child: Stack(
              children: <Widget>[
                SizedBox(
                  height: 100,
                  width: 100,
                  child: Image.file(File(fileList[i]!.path),fit: BoxFit.cover,),
                ),
                Positioned(
                    right: 1,
                    child: GestureDetector(
                      onTap: () {
                        setState(() {
                          dltImages(fileList[i]);
                        });
                      },
                      child: const Icon(Icons.cancel, color: Colors.red),
                    ))
              ],
            ),
          );
        },
      ),