diff --git a/lib/pages/live/live_stream/live_sku_widget.dart b/lib/pages/live/live_stream/live_sku_widget.dart
new file mode 100644
index 0000000..c51bd41
--- /dev/null
+++ b/lib/pages/live/live_stream/live_sku_widget.dart
@@ -0,0 +1,115 @@
+import 'package:flutter/material.dart';
+import 'package:recook/constants/header.dart';
+import 'package:recook/models/goods_detail_model.dart'
+    show Attributes, Children, Sku;
+
+class LiveSKUWidget extends StatefulWidget {
+  final List<Attributes> attributes;
+  final List<Sku> skus;
+  final Function(List<Children> children) onPick;
+  LiveSKUWidget(
+      {Key key,
+      @required this.attributes,
+      @required this.skus,
+      @required this.onPick})
+      : super(key: key);
+
+  @override
+  _LiveSKUWidgetState createState() => _LiveSKUWidgetState();
+}
+
+class _LiveSKUWidgetState extends State<LiveSKUWidget> {
+  List<Children> attrs = [];
+
+  @override
+  void initState() {
+    super.initState();
+    attrs = widget.attributes.map((e) => e.children.first).toList();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Column(
+      mainAxisSize: MainAxisSize.min,
+      crossAxisAlignment: CrossAxisAlignment.start,
+      children: widget.attributes
+          .map((attr) => Column(
+                crossAxisAlignment: CrossAxisAlignment.start,
+                mainAxisSize: MainAxisSize.min,
+                children: [
+                  Text(
+                    attr.name,
+                    style: TextStyle(
+                      color: Color(0xFF141414),
+                      fontSize: rSP(14),
+                      fontWeight: FontWeight.bold,
+                    ),
+                  ),
+                  _AttrPicker(
+                    attr: attr,
+                    onPick: (Children oldAttr, Children pickedAttr) {
+                      int index = attrs
+                          .indexWhere((element) => element.id == oldAttr.id);
+                      attrs[index] = pickedAttr;
+                      widget.onPick(attrs);
+                    },
+                  ),
+                ],
+              ))
+          .toList(),
+    );
+  }
+}
+
+class _AttrPicker extends StatefulWidget {
+  final Attributes attr;
+  final Function(Children oldAttr, Children pickedAttr) onPick;
+  _AttrPicker({Key key, @required this.attr, @required this.onPick})
+      : super(key: key);
+
+  @override
+  __AttrPickerState createState() => __AttrPickerState();
+}
+
+class __AttrPickerState extends State<_AttrPicker> {
+  Children pickedChild;
+  @override
+  void initState() {
+    pickedChild = widget.attr.children.first;
+    super.initState();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Wrap(
+      children: widget.attr.children
+          .map((e) => MaterialButton(
+                padding: EdgeInsets.symmetric(horizontal: rSize(5)),
+                shape: RoundedRectangleBorder(
+                  side: BorderSide(
+                    color: pickedChild.id == e.id
+                        ? Color(0xFFC92219)
+                        : Color(0xFF999999),
+                  ),
+                  borderRadius: BorderRadius.circular(rSize(2)),
+                ),
+                minWidth: 0,
+                height: rSize(22),
+                child: Text(
+                  e.value,
+                  style: TextStyle(
+                    color: pickedChild.id == e.id
+                        ? Color(0xFFC92219)
+                        : Color(0xFF999999),
+                  ),
+                ),
+                onPressed: () {
+                  widget.onPick(pickedChild, e);
+                  pickedChild = e;
+                  setState(() {});
+                },
+              ))
+          .toList(),
+    );
+  }
+}
diff --git a/lib/pages/live/live_stream/show_goods_list.dart b/lib/pages/live/live_stream/show_goods_list.dart
index bc8ca1b..02e9690 100644
--- a/lib/pages/live/live_stream/show_goods_list.dart
+++ b/lib/pages/live/live_stream/show_goods_list.dart
@@ -1,4 +1,5 @@
 import 'package:flutter/material.dart';
+import 'package:oktoast/oktoast.dart';
 import 'package:recook/constants/api.dart';
 import 'package:recook/constants/header.dart';
 import 'package:recook/manager/http_manager.dart';
@@ -10,6 +11,7 @@ import 'package:recook/pages/home/classify/commodity_detail_page.dart';
 import 'package:recook/pages/home/classify/mvp/goods_detail_model_impl.dart';
 import 'package:recook/pages/home/classify/order_preview_page.dart';
 import 'package:recook/pages/home/widget/plus_minus_view.dart';
+import 'package:recook/pages/live/live_stream/live_sku_widget.dart';
 import 'package:recook/pages/live/models/live_stream_info_model.dart'
     show GoodsLists;
 
@@ -540,44 +542,24 @@ class _InternalGoodsDetailState extends State<InternalGoodsDetail> {
                       thickness: rSize(1),
                     ),
                     rHBox(15),
-                    Text(
-                      '尺寸',
-                      style: TextStyle(
-                        color: Color(0xFF141414),
-                        fontSize: rSP(14),
-                        fontWeight: FontWeight.bold,
-                      ),
-                    ),
-                    Wrap(
-                      children: goodsModel.data.sku
-                          .map((e) => MaterialButton(
-                                padding:
-                                    EdgeInsets.symmetric(horizontal: rSize(5)),
-                                shape: RoundedRectangleBorder(
-                                  side: BorderSide(
-                                    color: sku.id == e.id
-                                        ? Color(0xFFC92219)
-                                        : Color(0xFF999999),
-                                  ),
-                                  borderRadius: BorderRadius.circular(rSize(2)),
-                                ),
-                                minWidth: 0,
-                                height: rSize(22),
-                                onPressed: () {
-                                  setState(() {
-                                    sku = e;
-                                  });
-                                },
-                                child: Text(
-                                  e.name,
-                                  style: TextStyle(
-                                    color: sku.id == e.id
-                                        ? Color(0xFFC92219)
-                                        : Color(0xFF999999),
-                                  ),
-                                ),
-                              ))
-                          .toList(),
+                    LiveSKUWidget(
+                      attributes: goodsModel.data.attributes,
+                      skus: goodsModel.data.sku,
+                      onPick: (children) {
+                        List<int> selected = children.map((e) => e.id).toList()
+                          ..sort((itemA, itemB) => itemA.compareTo(itemB));
+                        String tempSku = '';
+                        selected.forEach((element) {
+                          tempSku += ',$element';
+                        });
+                        int index = goodsModel.data.sku.indexWhere(
+                            (element) => (element.combineId) == tempSku.substring(1));
+                        if (index == -1) {
+                          showToast('没有该物品');
+                        } else {
+                          sku = goodsModel.data.sku[index];
+                        }
+                      },
                     ),
                     rHBox(15),
                     Row(
diff --git a/pubspec.yaml b/pubspec.yaml
index a69d633..2125e1c 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -4,8 +4,10 @@ publish_to: "none"
 
 version: 1.2.10-dev+173
 
+# sdk min version to 2.2.2
+# to support ... feature
 environment:
-  sdk: ">=2.1.0 <3.0.0"
+  sdk: ">=2.2.2 <3.0.0"
 
 module:
   androidX: true