更新

lib/base/base_page_view_item_state.dart

 import 'package:flutter/material.dart';
 import 'base_route_widget_state.dart';
 import 'dart:math' as math;
-import 'package:extended_nested_scroll_view/extended_nested_scroll_view.dart'
-    as extended;
 import './base_tab_bar_view_item_state.dart';
 
 /// PageView 子项抽象状态,仅支持直接使用PageView()构造

lib/base/base_tab_bar_view_item_state.dart

 import 'package:flutter/material.dart';
 import 'base_route_widget_state.dart';
 import './base_page_view_item_state.dart';
-import 'package:extended_nested_scroll_view/extended_nested_scroll_view.dart'
-    as extended;
-
 /// PageView 子项抽象状态
 /// 提供了生命周期监听
 /// 需要在MaterialApp.navigatorObservers中注册BaseRouteState.baseRouteStateObserver

lib/components/i_app_bar.dart

@@ -43,7 +43,7 @@ class IAppBar extends StatelessWidget implements PreferredSizeWidget {
       leading: leadingWidget,
       toolbarHeight: _height,
       actions: actions,
-      brightness: style,
+      systemOverlayStyle: SystemUiOverlayStyle(statusBarBrightness:style),
       automaticallyImplyLeading: false,
       flexibleSpace: SafeArea(
         bottom: false,

lib/components/i_empty_status.dart

@@ -90,7 +90,7 @@ class _IEmptyStatusState extends State<IEmptyStatus> {
               ),
             ),
           ),
-          FlatButton(
+          TextButton(
             onPressed: () async {
               if (widget.onTap != null) {
                 var connectivityResult =