update

lib/pages/delivery/delivery_list_row.dart

@@ -3,14 +3,13 @@ import 'package:fcs/helpers/theme.dart';
 import 'package:fcs/pages/main/util.dart';
 import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
-import 'package:flutter_icons/flutter_icons.dart';
 import 'package:intl/intl.dart';
 
 import 'delivery_info.dart';
 
 class DeliveryListRow extends StatelessWidget {
-  final Carton box;
-  DeliveryListRow({Key key, this.box}) : super(key: key);
+  final Carton? box;
+  DeliveryListRow({Key? key, this.box}) : super(key: key);
 
   final double dotSize = 15.0;
   final DateFormat dateFormat = new DateFormat("dd MMM yyyy");
@@ -19,10 +18,11 @@ class DeliveryListRow extends StatelessWidget {
   Widget build(BuildContext context) {
     return InkWell(
       onTap: () {
-        Navigator.push(
-          context,
-          CupertinoPageRoute(builder: (context) => DeliveryInfo(box: box)),
-        );
+        if (box != null)
+          Navigator.push(
+            context,
+            CupertinoPageRoute(builder: (context) => DeliveryInfo(box: box!)),
+          );
       },
       child: Container(
         padding: EdgeInsets.only(left: 15, right: 15),
@@ -48,7 +48,7 @@ class DeliveryListRow extends StatelessWidget {
                           Padding(
                             padding: const EdgeInsets.only(left: 8.0),
                             child: new Text(
-                              box.cartonNumber ?? "",
+                              box?.cartonNumber ?? "",
                               style: new TextStyle(
                                   fontSize: 15.0, color: Colors.black),
                             ),
@@ -56,7 +56,7 @@ class DeliveryListRow extends StatelessWidget {
                           Padding(
                             padding: const EdgeInsets.only(left: 10.0, top: 10),
                             child: new Text(
-                              box.userName ?? "",
+                              box?.userName ?? "",
                               style: new TextStyle(
                                   fontSize: 15.0, color: Colors.grey),
                             ),
@@ -72,14 +72,14 @@ class DeliveryListRow extends StatelessWidget {
               children: <Widget>[
                 Padding(
                   padding: const EdgeInsets.all(0),
-                  child: getStatus(box.status == null ? "" : box.status),
+                  child: getStatus(box?.status ?? ''),
                 ),
                 Padding(
                   padding: const EdgeInsets.only(left: 8.0, top: 5, bottom: 5),
                   child: Row(
                     children: <Widget>[
                       new Text(
-                        "${box.actualWeight?.toString() ?? ''} lb",
+                        "${box?.actualWeight.toString() ?? ''} lb",
                         style:
                             new TextStyle(fontSize: 15.0, color: Colors.grey),
                       ),