增加获取数据源的方法

lib/widget/my_refresh_list_public.dart

@@ -92,6 +92,8 @@ class _MyListViewPublicState extends State<MyListViewPublic> {
     _defaultRefresh();
   }
 
+  List get dataList => _dataList;
+
   // 移除数据
   void removeItem(index) {
     _dataList.removeAt(index);
@@ -241,6 +243,9 @@ class MyListController {
   void notifySingleItem(index, beanJson) {
     return _deerListViewState?.notifySingleItem(index, beanJson);
   }
+
+  /// 获取数据源
+  List get dataList => _deerListViewState?._dataList ?? [];
 }
 
 class MoreWidget extends StatelessWidget {