优惠券使用，未设置适用门店新增说明

lib/view_widget/selector_store_dialog.dart

@@ -8,6 +8,8 @@ import 'package:huixiang/view_widget/border_text.dart';
 import 'package:huixiang/view_widget/custom_image.dart';
 import 'package:huixiang/view_widget/round_button.dart';
 
+import 'no_data_view.dart';
+
 class SelectorStoreWidget extends StatefulWidget {
   final List<Store> stores;
 
@@ -91,7 +93,18 @@ class _SelectorStoreWidget extends State<SelectorStoreWidget> {
                 ? (widget.stores.length > 4 ? 4 : widget.stores.length)
                 : 0) *
                 60.h,
-            child: ListView.builder(
+            child: (widget.stores == null || widget.stores.length == 0)
+                ? Padding(padding:EdgeInsets.symmetric(horizontal: 16.w),
+            child: Text(
+              "该优惠券未设置适用门店，适用情况请查看使用详情",
+              textAlign: TextAlign.center,
+              style: TextStyle(
+                fontWeight: MyFontWeight.regular,
+                fontSize: 14.sp,
+                color: Colors.black,
+              ),
+            ),)
+                : ListView.builder(
               physics: BouncingScrollPhysics(),
               itemBuilder: (context, position) {
                 return GestureDetector(