add mix carton

lib/pages/package/package_info.dart

@@ -62,6 +62,9 @@ class _PackageInfoState extends State<PackageInfo> {
   Widget build(BuildContext context) {
     String id = Provider.of<MainModel>(context).user.id;
     bool owner = _package.userID == id;
+    bool canChangeDeliveryAddress =
+        _package.status == package_received_status ||
+            _package.status == package_processed_status;
 
     final trackingIdBox = DisplayText(
       text: _package.trackingID,
@@ -106,7 +109,7 @@ class _PackageInfoState extends State<PackageInfo> {
     final deliveryAddressBox = DefaultDeliveryAddress(
       deliveryAddress: _package.deliveryAddress,
       labelKey: "package.delivery.address",
-      onTap: owner
+      onTap: owner && canChangeDeliveryAddress
           ? () async {
               DeliveryAddress d = await Navigator.push<DeliveryAddress>(
                 context,