fix carton

lib/pages/carton/carton_info.dart

@@ -51,7 +51,6 @@ class _CartonInfoState extends State<CartonInfo> {
   double volumetricRatio = 0;
   double shipmentWeight = 0;
   String selectMixBoxType;
-  List<Carton> _mixCartons = [];
 
   bool isMixBox;
   bool isFromShipments;
@@ -76,6 +75,7 @@ class _CartonInfoState extends State<CartonInfo> {
 
     _updateBoxData();
     _loadPackages();
+    _loadMixCartons();
   }
 
   _updateBoxData() {
@@ -93,7 +93,6 @@ class _CartonInfoState extends State<CartonInfo> {
     isEdiable = (isFromPackages || isMixBox || isFromCartons) &&
         _box.status == carton_packed_status;
     selectMixBoxType = _box.mixBoxType ?? "";
-    _mixCartons = _box.mixCartons == null ? [] : _box.mixCartons;
     getCartonSize();
   }
 
@@ -132,6 +131,20 @@ class _CartonInfoState extends State<CartonInfo> {
     });
   }
 
+  _loadMixCartons() async {
+    if (_box.cartonType != carton_mix_box) return;
+    CartonModel cartonModel = Provider.of<CartonModel>(context, listen: false);
+    List<Carton> catons = [];
+    for (var id in _box.mixCartonIDs) {
+      Carton c = await cartonModel.getCarton(id);
+      catons.add(c);
+    }
+
+    setState(() {
+      _box.mixCartons = catons;
+    });
+  }
+
   _calShipmentWeight() {
     double l = double.parse(_lengthController.text, (s) => 0);
     double w = double.parse(_widthController.text, (s) => 0);
@@ -356,7 +369,7 @@ class _CartonInfoState extends State<CartonInfo> {
             isMixBox ? mixTypeBox : Container(),
             isMixBox ? LocalTitle(textKey: "box.mix_caton_title") : Container(),
             isMixBox
-                ? Column(children: _getCartons(context, this._mixCartons))
+                ? Column(children: _getCartons(context, _box.mixCartons))
                 : Container(),
             isFromPackages || isSmallBag
                 ? CartonPackageTable(
@@ -397,6 +410,7 @@ class _CartonInfoState extends State<CartonInfo> {
   }
 
   _gotoEditor() async {
+    widget.box.mixCartons=_box.mixCartons;
     bool updated = await Navigator.push<bool>(
       context,
       CupertinoPageRoute(builder: (context) => CartonEditor(box: widget.box)),
@@ -406,9 +420,10 @@ class _CartonInfoState extends State<CartonInfo> {
       var c = await cartonModel.getCarton(widget.box.id);
       setState(() {
         _box = c;
+        _loadPackages();
+        _loadMixCartons();
         _updateBoxData();
       });
-      _loadPackages();
     }
   }