提交：新增基类；

lib/widget/my_scaffold.dart

 import 'package:flutter/material.dart';
 import 'package:keyboard_actions/keyboard_actions.dart';
-
 import 'my_app_bar.dart';
 import 'my_scroll_view.dart';
 

lib/widget/my_subclass_list_public.dart

+import 'package:flutter/cupertino.dart';
+import 'package:flutter_clx_base/widget/my_refresh_list_public.dart';
+
+class MySubListViewPublic extends StatelessWidget {
+  final bool canLoadMore; //是否允许上拉
+  final ItemBuilder itemBuilder;
+  final MyListController? controller;
+  final bool firstRefresh;
+  final String? emptyText;
+  // 数据为空时，缺省图
+  final String? emptyImg;
+  // (page, pageSize,_requestSuccess,_requestError){}
+  final RequestDataCallback requestData;
+  // 一页的数量，默认为10
+  final int pageSize;
+  // padding属性使用时注意会破坏原有的SafeArea，需要自行计算bottom大小
+  final EdgeInsetsGeometry? padding;
+  final double? itemExtent;
+  final Function? onRefresh;
+
+  const MySubListViewPublic({
+    Key? key,
+    required this.itemBuilder,
+    required this.requestData,
+    this.pageSize = 10,
+    this.padding,
+    this.itemExtent,
+    this.controller,
+    this.onRefresh,
+    this.canLoadMore = true,
+    this.firstRefresh = true,
+    this.emptyText,
+    this.emptyImg,
+  }) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    return MyListViewPublic(
+      itemBuilder: itemBuilder,
+      requestData: requestData,
+      pageSize: pageSize,
+      padding: padding,
+      itemExtent: itemExtent,
+      controller: controller,
+      onRefresh: onRefresh,
+      canLoadMore: canLoadMore,
+      firstRefresh: firstRefresh,
+      emptyText: emptyText,
+      emptyImg: 'default_drawing_1',
+    );
+  }
+}
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