更新商品详情，推荐列表重用

lib/widgets/goods_details/recommend/goods_detail_commend_list.dart

@@ -72,7 +72,9 @@ class _GoodsDetailCommendListContainerState
     super.didChangeDependencies();
     print('didChangeDependencies');
     bool isNeedLoadMore =
-        Provider.of<GoodsDetailsPageNotifier>(context).scrollEnd;
+        Provider
+            .of<GoodsDetailsPageNotifier>(context)
+            .scrollEnd;
     if (isNeedLoadMore && _provider != '') {
       print('HomeGoods loadmore...');
       _bloc.loadMore(_provider);
@@ -81,52 +83,50 @@ class _GoodsDetailCommendListContainerState
 
   @override
   Widget build(BuildContext context) {
-    return Container(
+    return StreamBuilder<List<HomeGoodsModel>>(
-      width: double.infinity,
-      child: StreamBuilder<List<HomeGoodsModel>>(
         stream: _bloc.outData,
         builder: (BuildContext context, AsyncSnapshot snapshot) {
-          if (snapshot.data == null) {
+          // if (snapshot.data == null) {
-            return Container();
+          //   return Container();
-          }
+          // }
 
           List<HomeGoodsModel> goods = snapshot.data;
           int column = 2;
-          int count = (goods.length / column).ceil();
+          int count = ((goods?.length ?? 0) / column).ceil();
-          return ListView.builder(
+          return SliverList(
-              shrinkWrap: true,
+            delegate: SliverChildBuilderDelegate((context, index) {
-              physics: NeverScrollableScrollPhysics(),
+              if (column == 1) {
-              itemCount: count,
+                return HomeGoodsItemSingle(
-              itemBuilder: (context, index) {
+                  goods[index],
-                if (column == 1) {
+                  _style,
-                  return HomeGoodsItemSingle(
+                  data: widget.data,
-                    goods[index],
+                );
-                    _style,
+              } else {
-                    data: widget.data,
+                // return Container(color: Colors.red, height: 126,margin: EdgeInsets.all(10),);
-                  );
+                return Padding(
-                } else {
+                  padding: const EdgeInsets.only(left: 5, right: 5),
-                  // return Container(color: Colors.red, height: 126,margin: EdgeInsets.all(10),);
+                  child: Row(
-                  return Padding(
+                    children: List.generate(column, (c) {
-                    padding: const EdgeInsets.only(left: 5, right: 5),
+                      int i = index * column + c;
-                    child: Row(
+                      return Expanded(
-                      children: List.generate(column, (c) {
+                        child: i < goods.length
-                        int i = index * column + c;
+                            ? HomeGoodsItem(
-                        return Expanded(
+                          goods[i],
-                          child: i < goods.length
+                          _style,
-                              ? HomeGoodsItem(
+                          data: widget.data,
-                                  goods[i],
+                        )
-                                  _style,
+                            : Container(),
-                                  data: widget.data,
+                      );
-                                )
+                    }).toList(),
-                              : Container(),
+                  ),
-                        );
+                );
-                      }).toList(),
+              }
-                    ),
+            }, childCount
-                  );
+                :
-                }
+            count
-              });
+              ,
-        },
+            ),);
-      ),
+        }
     );
   }
 }