修复借还管理接口调用错误

lib/model/manager/article_return_list_model.dart

@@ -37,6 +37,9 @@ class ArticleReturnListModel {
     }
   }
 
+  factory ArticleReturnListModel.fail() => ArticleReturnListModel(
+      id: -1, name: '', code: '', beginDate: '', borrowTime: 0, imgList: []);
+
   Map<String, dynamic> toJson() {
     final Map<String, dynamic> data = new Map<String, dynamic>();
     data['id'] = this.id;
@@ -50,31 +53,3 @@ class ArticleReturnListModel {
     return data;
   }
 }
-
-class ImgList {
-  String? url;
-  String? size;
-  int? longs;
-  int? paragraph;
-  int? sort;
-
-  ImgList({this.url, this.size, this.longs, this.paragraph, this.sort});
-
-  ImgList.fromJson(Map<String, dynamic> json) {
-    url = json['url'];
-    size = json['size'];
-    longs = json['longs'];
-    paragraph = json['paragraph'];
-    sort = json['sort'];
-  }
-
-  Map<String, dynamic> toJson() {
-    final Map<String, dynamic> data = new Map<String, dynamic>();
-    data['url'] = this.url;
-    data['size'] = this.size;
-    data['longs'] = this.longs;
-    data['paragraph'] = this.paragraph;
-    data['sort'] = this.sort;
-    return data;
-  }
-}

lib/pages/goods_manage_page/retrun/return_goods_detail_page.dart

@@ -24,7 +24,7 @@ class ReturnGoodsDetailPage extends StatefulWidget {
 }
 
 class _ReturnGoodsDetailPageState extends State<ReturnGoodsDetailPage> {
-  EasyRefreshController? _easyRefreshController;
+  late EasyRefreshController _easyRefreshController;
   late List<ArticleReturnListModel> _models;
   bool _onload = true;
   List<int?> _selectItems = [];
@@ -37,7 +37,7 @@ class _ReturnGoodsDetailPageState extends State<ReturnGoodsDetailPage> {
 
   @override
   void dispose() {
-    _easyRefreshController?.dispose();
+    _easyRefreshController.dispose();
     super.dispose();
   }
 
@@ -48,10 +48,9 @@ class _ReturnGoodsDetailPageState extends State<ReturnGoodsDetailPage> {
       body: EasyRefresh(
         firstRefresh: true,
         header: MaterialHeader(),
+        controller: _easyRefreshController,
         onRefresh: () async {
-          List models = await (getModels());
-          _models =
-              models.map((e) => ArticleReturnListModel.fromJson(e)).toList();
+          _models = await (getModels());
           _onload = false;
           setState(() {});
         },
@@ -162,7 +161,12 @@ class _ReturnGoodsDetailPageState extends State<ReturnGoodsDetailPage> {
 
   Future getModels() async {
     BaseModel baseModel = await NetUtil().get(API.manager.articleReturnList);
-    return baseModel.data as List?;
+    if (baseModel.status! && baseModel.data != null) {
+      return (baseModel.data as List)
+          .map((e) => ArticleReturnListModel.fromJson(e))
+          .toList();
+    }
+    return [ArticleReturnListModel.fail()];
   }
 
   Widget _goodsCard(ArticleReturnListModel model) {