after update qty I call get cart details but screen not showing updates in cart in flutter

Question

enter code here onChanged: (value) { setState(() { cartProduct_list[0].products![index].quantity = value.toString(); });

                                           isload = true;
                                           _cartController.updateQty(email.toString(),
                                               sessionData.toString(),
                                               cartProduct_list[0].products![index].productId.toString(),
                                               int.parse(cartProduct_list[0].products![index].quantity.toString())).then((value)  {
                                                   setState(() {
                                                     print("before"+cartProduct_list[0].totals![0].value.toString());
                                                     getCartDetails();

                                                     isload = false;

                                                   });
                                                 });