hive_homeview_get.dart

ListView.builder(
     itemCount: model.inventoryList.length,
     itemBuilder: (context, index) {
       Inventory inv = model.inventoryList[index];
       return Container(
          margin: EdgeInsets.symmetric(
          vertical: 2.height,
          horizontal: 4.5.width,
         ),
          height: 13.height,
          decoration: BoxDecoration(
          color: Colors.white,
          ),
          child: Row(
            children: <Widget>[
              Container(
                margin: EdgeInsets.only(left: 2.width),
                width: 16.width,
                decoration: BoxDecoration(
                color: Colors.green[600],
                shape: BoxShape.circle,
                ),
                child: Center(
                  child: Icon(
                     Icons.home,
                     color: Colors.white,
                        ),
                      ),
                    ),
                    Padding(
                     padding: EdgeInsets.symmetric(
                     vertical: 3.height,
                     horizontal: 3.width,
                     ),
                      child: Column(
                        crossAxisAlignment: CrossAxisAlignment.start,
                         children: <Widget>[
                            Text(
                             inv.name,
                              style: TextStyle(
                               color: Colors.green[600],
                               fontWeight: FontWeight.w600,
                               fontSize: 4.5.text,
                                 ),
                               ),
                               SizedBox(
                                height: 1.height,
                               ),
                                  Text(
                                    inv.description,
                                    style: TextStyle(
                                      color: Colors.grey,
                                      fontSize: 4.text,
                                    ),
                                  ),
                                ],
                              ),
                            ),
                            Padding(
                              padding: EdgeInsets.only(left: 8.width),
                              child: PopupMenuButton(
                                onSelected: (item) {
                                  switch (item) {
                                    case 'update':
                                      nameController.text = inv.name;
                                      descriptionController.text =
                                          inv.description;

                                      inputItemDialog(context, 'update', index);
                                      break;
                                    case 'delete':
                                      model.deleteAt(index);
                                  }
                                },
                                itemBuilder: (context) {
                                  return [
                                    PopupMenuItem(
                                      value: 'update',
                                      child: Text('Update'),
                                    ),
                                    PopupMenuItem(
                                      value: 'delete',
                                      child: Text('Delete'),
                                    ),
                                  ];
                                },
                              ),
                            ),
                          ],
                        ),
                      );
                    },
                  )

@a-oboh what is the <number>.width extension?

https://gist.github.com/a-oboh/4aa4121b0106724102133b117237fb4c#file-hive_homeview_get-dart-L8