ext

lib/07/节点介绍.txt

@@ -1,4 +1,2 @@
 01: 分析 push 方法。
-    A、B、C 三个界面跳转。
-
-02: replace
+    A、B、C 三个界面跳转。

lib/08/02/main.dart

@@ -23,7 +23,7 @@ class MyApp extends StatelessWidget {
           titleTextStyle: TextStyle(color: Colors.black,fontSize: 18,fontWeight: FontWeight.bold)
         )
       ),
-      home:  const PageA(),
+      home:  const HomePage(),
       onUnknownRoute: _onUnknownRoute,
     );
   }
@@ -46,3 +46,28 @@ class MyApp extends StatelessWidget {
     return null;
   }
 }
+
+class HomePage extends StatelessWidget {
+  const HomePage({super.key});
+  @override
+  Widget build(BuildContext context) {
+    const Color bgColor = Color(0xffCCFFFF);
+
+    return Scaffold(
+      backgroundColor: bgColor,
+      appBar: AppBar(title: const Text('主页'),
+        backgroundColor: bgColor,
+      ),
+      body: Center(
+        child: ElevatedButton(
+          onPressed: ()=>toPageA(context),
+          child: const Text('Push A'),
+        ),
+      ),
+    );
+  }
+
+  void toPageA(BuildContext context){
+    Navigator.of(context).pushNamed('/a');
+  }
+}

lib/09/节点介绍.txt

@@ -0,0 +1,4 @@
+01: 分析 pop 方法。
+    A、B、C 三个界面跳转。
+
+02: 分析 popUntil 方法。

lib/10/app_info.dart

@@ -0,0 +1,46 @@
+import 'package:flutter/material.dart';
+
+class AppInfo extends StatelessWidget {
+  const AppInfo({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    const String msg = 'FlutterUnit 是一个辅助开发者,了解 Flutter 组件和编程技术的开源项目。 ';
+    const String msg2 = '由张风捷特烈维护，开源地址:\n https://github.com/toly1994328/FlutterUnit ';
+
+    double height = MediaQuery.of(context).size.height;
+    return SizedBox(
+      height: height*(1-0.618),
+      child: Column(
+        children: [
+          AppBar(
+            backgroundColor: Colors.transparent,
+            automaticallyImplyLeading: false,
+            centerTitle: true,
+            leading: Align(child: FlutterLogo()),
+            actions: [
+              CloseButton()
+            ],
+            title: Column(
+              children: [
+                Text('FlutterUnit',style: TextStyle(fontSize: 16,fontWeight: FontWeight.bold)),
+                Text('v2.9.3',style: TextStyle(fontSize: 12,),),
+              ],
+            ),),
+          const Padding(
+            padding: EdgeInsets.symmetric(horizontal: 20.0,vertical: 10),
+            child: Column(
+              crossAxisAlignment: CrossAxisAlignment.start,
+              // direction: Axis.vertical,
+              children: [
+                Text(msg,style: TextStyle(color: Colors.grey),),
+                const SizedBox(height: 8,),
+                Text(msg2,style: TextStyle(color: Colors.grey),),
+              ],
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+}

lib/10/cupertino_context_menu_demo.dart

@@ -0,0 +1,107 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:flutter/cupertino.dart';
+import 'package:flutter/material.dart';
+
+/// Flutter code sample for [CupertinoContextMenu].
+
+final DecorationTween _tween = DecorationTween(
+  begin: BoxDecoration(
+    color: CupertinoColors.systemPurple,
+    boxShadow: const <BoxShadow>[],
+    borderRadius: BorderRadius.circular(20.0),
+  ),
+  end: BoxDecoration(
+    color: CupertinoColors.systemPurple,
+    boxShadow: CupertinoContextMenu.kEndBoxShadow,
+    borderRadius: BorderRadius.circular(20.0),
+  ),
+);
+
+class CupertinoContextMenuDemo extends StatelessWidget {
+  const CupertinoContextMenuDemo({super.key});
+
+  // Or just do this inline in the builder below?
+  static Animation<Decoration> _boxDecorationAnimation(
+      Animation<double> animation) {
+    return _tween.animate(
+      CurvedAnimation(
+        parent: animation,
+        curve: Interval(
+          0.0,
+          CupertinoContextMenu.animationOpensAt,
+        ),
+      ),
+    );
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return CupertinoPageScaffold(
+      navigationBar: const CupertinoNavigationBar(
+        middle: Text('CupertinoContextMenu 案例'),
+      ),
+      child: Center(
+        child: SizedBox(
+          width: 100,
+          height: 100,
+          child: CupertinoContextMenu.builder(
+            actions: <Widget>[
+              CupertinoContextMenuAction(
+                onPressed: () {
+                  Navigator.pop(context);
+                },
+                isDefaultAction: true,
+                trailingIcon: CupertinoIcons.doc_on_clipboard_fill,
+                child: const Text('Copy'),
+              ),
+              CupertinoContextMenuAction(
+                onPressed: () {
+                  Navigator.pop(context);
+                },
+                trailingIcon: CupertinoIcons.share,
+                child: const Text('Share'),
+              ),
+              CupertinoContextMenuAction(
+                onPressed: () {
+                  Navigator.pop(context);
+                },
+                trailingIcon: CupertinoIcons.heart,
+                child: const Text('Favorite'),
+              ),
+              CupertinoContextMenuAction(
+                onPressed: () {
+                  Navigator.pop(context);
+                },
+                isDestructiveAction: true,
+                trailingIcon: CupertinoIcons.delete,
+                child: const Text('Delete'),
+              ),
+            ],
+            builder: (BuildContext context, Animation<double> animation) {
+              final Animation<Decoration> boxDecorationAnimation =
+                  _boxDecorationAnimation(animation);
+
+              return Container(
+                decoration:
+                    animation.value < CupertinoContextMenu.animationOpensAt
+                        ? boxDecorationAnimation.value
+                        : null,
+                child: Container(
+                  padding: EdgeInsets.all(20),
+                  decoration: BoxDecoration(
+                    color: CupertinoColors.systemPurple,
+                    borderRadius: BorderRadius.circular(20.0),
+                  ),
+                  child: const FlutterLogo(size: 250.0),
+                ),
+              );
+            },
+          ),
+        ),
+      ),
+    );
+  }
+}

lib/10/dropdown_button_color.dart

@@ -0,0 +1,83 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:flutter/material.dart';
+
+/// Flutter code sample for [DropdownButton.selectedItemBuilder].
+
+const Map<String, Color> kColors = <String, Color>{
+  '红色': Colors.red,
+  '黄色': Colors.yellowAccent,
+  '蓝色': Colors.blue,
+  '绿色': Colors.greenAccent,
+  '橙色': Colors.orange,
+  '紫色': Colors.purple,
+};
+
+class DropdownButtonColor extends StatefulWidget {
+  const DropdownButtonColor({super.key});
+
+  @override
+  State<DropdownButtonColor> createState() => _DropdownButtonColorState();
+}
+
+class _DropdownButtonColorState extends State<DropdownButtonColor> {
+  String selectedItem = kColors.keys.first;
+
+  @override
+  Widget build(BuildContext context) {
+    return Row(
+      mainAxisAlignment: MainAxisAlignment.center,
+      children: <Widget>[
+        Text('选择颜色:', style: Theme.of(context).textTheme.bodyLarge),
+        Padding(
+          padding: const EdgeInsets.symmetric(horizontal: 8.0),
+          child: DropdownButton<String>(
+            value: selectedItem,
+            onChanged: (String? value) {
+              setState(() => selectedItem = value!);
+            },
+            selectedItemBuilder: _buildSelectItem,
+            items: _buildItems(),
+          ),
+        ),
+      ],
+    );
+  }
+
+  List<DropdownMenuItem<String>> _buildItems(){
+   return kColors.keys.map<DropdownMenuItem<String>>((String key) {
+      return DropdownMenuItem<String>(
+        value: key,
+        child: Wrap(
+          spacing: 4,
+          crossAxisAlignment: WrapCrossAlignment.center,
+          children: [
+            Container(
+              width: 14,
+              height: 14,
+              decoration: BoxDecoration(
+                  color: kColors[key],
+                  borderRadius: BorderRadius.circular(2)),
+            ),
+            Text(key),
+          ],
+        ),
+      );
+    }).toList();
+  }
+
+  List<Widget> _buildSelectItem(BuildContext context) {
+      return kColors.values.map<Widget>((Color color) {
+        return Align(
+          child: Container(
+            decoration: BoxDecoration(
+                color: color,
+                borderRadius: BorderRadius.circular(2)),
+            constraints: const BoxConstraints(minWidth: 24,maxHeight: 24),
+          ),
+        );
+      }).toList();
+  }
+}

lib/10/main.dart

@@ -0,0 +1,137 @@
+import 'package:flutter/cupertino.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_localizations/flutter_localizations.dart';
+
+import 'app_info.dart';
+import 'cupertino_context_menu_demo.dart';
+import 'dropdown_button_color.dart';
+import 'more_pop_icon.dart';
+import 'search_anchor_demo.dart';
+
+void main() {
+  runApp(const MyApp());
+}
+
+class MyApp extends StatelessWidget {
+  const MyApp({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      title: 'Flutter Demo',
+      localizationsDelegates: GlobalMaterialLocalizations.delegates,
+      supportedLocales: const [
+         Locale('zh', 'CN'),
+      ],
+      locale: const Locale('zh', 'CN'),
+      debugShowCheckedModeBanner: false,
+      theme: ThemeData(
+        colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
+        useMaterial3: true,
+      ),
+      home:  const HomePage(),
+    );
+  }
+}
+
+
+class HomePage extends StatefulWidget {
+  const HomePage({super.key});
+
+  @override
+  State<HomePage> createState() => _HomePageState();
+}
+
+class _HomePageState extends State<HomePage> {
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: Text("弹出层测试"),
+        actions: [
+          MorePopIcon(onTapItem: _onTapItem,)
+        ],
+      ),
+      body: Center(
+        child: Column(
+          mainAxisSize: MainAxisSize.min,
+          children: [
+            ElevatedButton(
+              onPressed: showConformDialog,
+              child: Text('关于应用'),
+            ),
+            DropdownButtonColor(),
+            ElevatedButton(
+              onPressed: _showModalBottomSheet,
+              child: Text('showModalBottomSheet'),
+            ),
+            ElevatedButton(
+              onPressed: _showCupertinoModalPopup,
+              child: Text('showCupertinoModalPopup'),
+            ),
+            ElevatedButton(
+              onPressed: _toSearchAnchor,
+              child: Text('SearchAnchor 案例'),
+            ),        ElevatedButton(
+              onPressed: _toCupertinoContextMenu,
+              child: Text('CupertinoContextMenu 案例'),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+
+  void showConformDialog(){
+    showDialog(context: context, builder: _buildAbout);
+    // showCupertinoModalPopup(context: context, builder: builder)
+    // showCupertinoDialog(context: context, builder: _buildAbout);
+  }
+
+  void _showModalBottomSheet(){
+    showModalBottomSheet(
+        shape: RoundedRectangleBorder(
+          borderRadius: BorderRadius.circular(8)
+        ),
+        context: context, builder: (_)=>AppInfo());
+  }
+
+  void _showCupertinoModalPopup(){
+    showCupertinoModalPopup(
+        context: context, builder: (_)=>Material(child: const AppInfo()));
+  }
+
+  Widget _buildAbout(BuildContext context){
+    const String msg = 'FlutterUnit 是一个辅助开发者,了解 Flutter 组件和编程技术的开源项目。';
+    return const AboutDialog(
+      applicationName: "FlutterUnit",
+      applicationVersion: "v2.9.3",
+      applicationIcon: FlutterLogo(),
+      children: [
+        Text(msg,style: TextStyle(color: Colors.grey),)
+      ],
+    );
+  }
+
+  void _onTapItem(MenuAction value) {
+    print(value.label);
+    switch(value){
+      case MenuAction.setting:
+        break;
+      case MenuAction.about:
+        showConformDialog();
+        break;
+      case MenuAction.help:
+        break;
+    }
+  }
+
+  void _toSearchAnchor() {
+    Navigator.of(context).push(MaterialPageRoute(builder: (_)=>SearchAnchorDemo()));
+
+  }
+
+  void _toCupertinoContextMenu() {
+    Navigator.of(context).push(MaterialPageRoute(builder: (_)=>CupertinoContextMenuDemo()));
+  }
+}

lib/10/more_pop_icon.dart

@@ -0,0 +1,58 @@
+import 'package:flutter/material.dart';
+
+enum MenuAction implements Comparable<MenuAction> {
+  setting(label: '应用设置', iconData: Icons.settings),
+  about(label: '关于应用', iconData: Icons.info),
+  help(label: '帮助中心', iconData: Icons.help);
+
+  final String label;
+  final IconData iconData;
+
+  const MenuAction({
+    required this.label,
+    required this.iconData,
+  });
+
+  @override
+  int compareTo(MenuAction other) => label.compareTo(other.label);
+
+  bool operator >(MenuAction other) {
+    return compareTo(other) > 0;
+  }
+}
+
+class MorePopIcon extends StatelessWidget {
+  final ValueChanged<MenuAction> onTapItem;
+  const MorePopIcon({super.key, required this.onTapItem});
+
+  @override
+  Widget build(BuildContext context) {
+    return PopupMenuButton<MenuAction>(
+      itemBuilder: _buildItem,
+      onSelected: onTapItem,
+      icon: const Icon(Icons.more_vert_outlined),
+      position: PopupMenuPosition.under,
+      shape: const RoundedRectangleBorder(
+        borderRadius: BorderRadius.all(Radius.circular(10)),
+      ),
+    );
+  }
+
+  List<PopupMenuEntry<MenuAction>> _buildItem(BuildContext context) {
+    return MenuAction.values
+        .map((MenuAction action) => PopupMenuItem<MenuAction>(
+              height: 35,
+              value: action,
+              child: Center(
+                  child: Wrap(
+                crossAxisAlignment: WrapCrossAlignment.center,
+                spacing: 6,
+                children: [
+                  Text(action.label),
+                  Icon(action.iconData, size: 18),
+                ],
+              )),
+            ))
+        .toList();
+  }
+}

lib/10/search_anchor_demo.dart

@@ -0,0 +1,162 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:flutter/material.dart';
+
+class SearchAnchorDemo extends StatefulWidget {
+  const SearchAnchorDemo({super.key});
+
+  @override
+  State<SearchAnchorDemo> createState() => _SearchAnchorDemoState();
+}
+
+class _SearchAnchorDemoState extends State<SearchAnchorDemo> {
+  Color? selectedColorSeed;
+  List<ColorLabel> searchHistory = <ColorLabel>[];
+
+  Iterable<Widget> getHistoryList(SearchController controller) {
+    return searchHistory.map(
+      (ColorLabel color) => ListTile(
+        leading: const Icon(Icons.history),
+        title: Text(color.label),
+        trailing: IconButton(
+          icon: const Icon(Icons.call_missed),
+          onPressed: () {
+            controller.text = color.label;
+            controller.selection = TextSelection.collapsed(offset: controller.text.length);
+          },
+        ),
+      ),
+    );
+  }
+
+  Iterable<Widget> getSuggestions(SearchController controller) {
+    final String input = controller.value.text;
+    return ColorLabel.values.where((ColorLabel color) => color.label.contains(input)).map(
+          (ColorLabel filteredColor) => ListTile(
+            leading: CircleAvatar(backgroundColor: filteredColor.color),
+            title: Text(filteredColor.label),
+            trailing: IconButton(
+              icon: const Icon(Icons.call_missed),
+              onPressed: () {
+                controller.text = filteredColor.label;
+                controller.selection = TextSelection.collapsed(offset: controller.text.length);
+              },
+            ),
+            onTap: () {
+              controller.closeView(filteredColor.label);
+              handleSelection(filteredColor);
+            },
+          ),
+        );
+  }
+
+  void handleSelection(ColorLabel selectedColor) {
+    setState(() {
+      selectedColorSeed = selectedColor.color;
+      if (searchHistory.length >= 5) {
+        searchHistory.removeLast();
+      }
+      searchHistory.insert(0, selectedColor);
+    });
+  }
+
+  Map<String,Color> colorMaps(ColorScheme colors) => {
+    'primary':colors.primary ,
+    'secondary':colors.secondary ,
+    'inverseSurface':colors.inverseSurface ,
+    'background':colors.background ,
+
+
+    'onPrimaryContainer':colors.onPrimaryContainer ,
+    'onErrorContainer':colors.onErrorContainer ,
+    'onBackground':colors.onBackground ,
+    'onTertiaryContainer':colors.onTertiaryContainer ,
+
+
+    'error':colors.error ,
+    'inversePrimary':colors.inversePrimary ,
+    'primaryContainer':colors.primaryContainer ,
+    'errorContainer':colors.errorContainer ,
+
+    'onPrimary':colors.onPrimary ,
+    'onSecondary':colors.onSecondary ,
+    'onError':colors.onError ,
+    'onTertiary':colors.onTertiary ,
+    'onSurfaceVariant':colors.onSurfaceVariant ,
+    'shadow':colors.shadow ,
+  };
+
+
+
+  @override
+  Widget build(BuildContext context) {
+    final ThemeData themeData = ThemeData(useMaterial3: true, colorSchemeSeed: selectedColorSeed);
+    final ColorScheme colors = themeData.colorScheme;
+    Map<String,Color> data = colorMaps(colors);
+    SizedBox cardSize = const SizedBox(
+      width: 80,
+      height: 30,
+      child: Text(''),
+    );
+
+    return Scaffold(
+      appBar: AppBar(title: const Text('搜索颜色')),
+      body: Align(
+        alignment: Alignment.topCenter,
+        child: Column(
+          children: <Widget>[
+            SearchAnchor.bar(
+              barHintText: '输入颜色',
+              suggestionsBuilder: (BuildContext context, SearchController controller) {
+                if (controller.text.isEmpty) {
+                  if (searchHistory.isNotEmpty) {
+                    return getHistoryList(controller);
+                  }
+                  return <Widget>[Center(child: Text('暂无历史记录.', style: TextStyle(color: colors.outline)))];
+                }
+                return getSuggestions(controller);
+              },
+            ),
+            cardSize,
+            Wrap(
+              children: data.keys.map((key) => Card(color: data[key], child: SizedBox(
+                width: 80,
+                height: 30,
+                child: Center(child: Text(key,style: TextStyle(fontSize: 8,color: Colors.white,shadows: [
+                  BoxShadow(color: Colors.black,offset: Offset(.1,.1),blurRadius: 2)
+                ]),)),
+              ))).toList(),
+            ),
+
+          ],
+        ),
+      ),
+    );
+  }
+}
+
+
+enum ColorLabel {
+  red('red', Colors.red),
+  orange('orange', Colors.orange),
+  yellow('yellow', Colors.yellow),
+  green('green', Colors.green),
+  blue('blue', Colors.blue),
+  indigo('indigo', Colors.indigo),
+  violet('violet', Color(0xFF8F00FF)),
+  purple('purple', Colors.purple),
+  pink('pink', Colors.pink),
+  silver('silver', Color(0xFF808080)),
+  gold('gold', Color(0xFFFFD700)),
+  beige('beige', Color(0xFFF5F5DC)),
+  brown('brown', Colors.brown),
+  grey('grey', Colors.grey),
+  black('black', Colors.black),
+  white('white', Colors.white);
+
+  const ColorLabel(this.label, this.color);
+  final String label;
+  final Color color;
+}

lib/10/节点介绍.txt

@@ -0,0 +1,5 @@
+app_info.dart: 弹出对话框界面
+cupertino_context_menu_demo.dart: 弹出 CupertinoContextMenu
+dropdown_button_color.dart: 弹出 DropdownButton
+more_pop_icon.dart: 弹出 PopupMenuButton
+search_anchor_demo.dart: 弹出 SearchAnchor

lib/11/color_detail.dart

@@ -0,0 +1,24 @@
+import 'package:flutter/material.dart';
+
+class ColorDetailPage extends StatelessWidget {
+  final Color color;
+  const ColorDetailPage({super.key, required this.color});
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      backgroundColor: color,
+      appBar: AppBar(
+        centerTitle: true,
+        iconTheme: IconThemeData(color: Colors.white),
+        titleTextStyle: TextStyle(color: Colors.white,fontSize: 16,fontWeight: FontWeight.bold),
+        backgroundColor: color,
+        title: Text('颜色详情页'),
+      ),
+      body: Center(
+        child: Text(   '#${color.value.toRadixString(16)}',style: TextStyle(color: Colors.white,fontSize: 26,fontWeight: FontWeight.bold),),
+      ),
+    );
+  }
+}
+

lib/11/color_page.dart

@@ -0,0 +1,66 @@
+import 'package:flutter/material.dart';
+import '../common/components/colors_panel.dart';
+import 'color_detail.dart';
+import 'transition.dart';
+
+class ColorPage extends StatefulWidget {
+  const ColorPage({super.key});
+
+  @override
+  State<ColorPage> createState() => _ColorPageState();
+}
+
+class _ColorPageState extends State<ColorPage> {
+  final List<Color> _colors = [
+    Colors.red,
+    Colors.black,
+    Colors.blue,
+    Colors.green,
+    Colors.orange,
+    Colors.pink,
+    Colors.purple,
+    Colors.indigo,
+    Colors.amber,
+    Colors.cyan,
+    Colors.redAccent,
+    Colors.grey,
+    Colors.blueAccent,
+    Colors.greenAccent,
+    Colors.orangeAccent,
+    Colors.pinkAccent,
+    Colors.purpleAccent,
+    Colors.indigoAccent,
+    Colors.amberAccent,
+    Colors.cyanAccent,
+  ];
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(title: const Text('颜色主页')),
+      floatingActionButton: FloatingActionButton(
+        onPressed: _toAddPage,
+        child: const Icon(Icons.add),
+      ),
+      body: ColorsPanel(
+        colors: _colors,
+        onSelect: _selectColor,
+      ),
+    );
+  }
+
+  void _selectColor(Color color) {
+    Route route = PageRouteBuilder<void>(
+      barrierColor: Colors.white,
+      pageBuilder: (_, __, ___) => ColorDetailPage(color:color),
+      transitionsBuilder: kSlideBottomToTopWithSecondary,
+    );
+    Navigator.push(context, route);
+    // Navigator.push(
+    //     context,
+    //     MaterialPageRoute(builder: (_)=>ColorDetailPage(color:color)));
+  }
+
+  void _toAddPage() {
+  }
+}

lib/11/main.dart

@@ -0,0 +1,72 @@
+import 'package:flutter/cupertino.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_localizations/flutter_localizations.dart';
+import 'package:iroute/11/transition.dart';
+
+import 'color_page.dart';
+
+void main() {
+  runApp(const MyApp());
+}
+
+class MyApp extends StatelessWidget {
+  const MyApp({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      title: 'Flutter Demo',
+      localizationsDelegates: GlobalMaterialLocalizations.delegates,
+      supportedLocales: const [
+        Locale('zh', 'CN'),
+      ],
+      locale: const Locale('zh', 'CN'),
+      debugShowCheckedModeBanner: false,
+      theme: ThemeData(
+        colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
+        useMaterial3: true,
+      ),
+      home: const HomePage(),
+    );
+  }
+}
+
+class HomePage extends StatefulWidget {
+  const HomePage({super.key});
+
+  @override
+  State<HomePage> createState() => _HomePageState();
+}
+
+class _HomePageState extends State<HomePage> {
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: Text("Cose 酷色"),
+      ),
+      body: Center(
+        child: Column(
+          mainAxisSize: MainAxisSize.min,
+          children: [
+            ElevatedButton(
+              onPressed: _toColorHome,
+              child: Text('打开颜色界面'),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+
+  void _toColorHome() {
+    Route route = PageRouteBuilder<void>(
+      barrierColor: Colors.white,
+      pageBuilder: (_, __, ___) => const ColorPage(),
+      transitionsBuilder: kSlideBottomToTopWithSecondary,
+    );
+    Navigator.push(context, route);
+    // Navigator.pushReplacement(context, route);
+
+  }
+}

lib/11/transition.dart

@@ -0,0 +1,22 @@
+import 'package:flutter/material.dart';
+
+RouteTransitionsBuilder kSlideBottomToTopWithSecondary = (
+  BuildContext context,
+  Animation<double> animation,
+  Animation<double> secondaryAnimation,
+  Widget child,
+) {
+  return SlideTransition(
+    position: Tween<Offset>(
+      begin: const Offset(0.0, 1.0),
+      end: Offset.zero,
+    ).animate(animation),
+    child: SlideTransition(
+      position: Tween<Offset>(
+        begin: Offset.zero,
+        end: const Offset(0.0, 1.0),
+      ).animate(secondaryAnimation),
+      child: child,
+    ),
+  );
+};

lib/11/节点介绍.txt

@@ -0,0 +1 @@
+路由第二动画控制器效果演示

lib/12/01/main.dart

@@ -1,11 +0,0 @@
-import 'package:flutter/material.dart';
-import 'pages/app/app.dart';
-
-
-void main() {
-  runApp(const App());
-}
-
-
-
-

lib/13/01_/main.dart

@@ -1,15 +0,0 @@
-import 'package:flutter/material.dart';
-import 'package:url_strategy/url_strategy.dart';
-
-import 'pages/app.dart';
-
-
-
-void main() {
-  setHashUrlStrategy();
-  runApp(const App());
-}
-
-
-
-

lib/13/01_/pages/app.dart

@@ -1,50 +0,0 @@
-import 'package:flutter/material.dart';
-import '../route/parser.dart';
-import '../route/route_state.dart';
-
-class App extends StatefulWidget {
-  const App({super.key});
-
-  @override
-  State<App> createState() => _AppState();
-}
-
-class _AppState extends State<App> {
-  late final RootRouterDelegate _delegate;
-  late final AppRouteParser _parser;
-  late final RouteState _routeState;
-
-  @override
-  void initState() {
-    super.initState();
-    _parser = AppRouteParser(initialRoute: '/color', allowPaths: [
-      '/color',
-      '/color/add',
-      '/color/detail/:colorHex',
-    ]);
-    _routeState = RouteState(_parser);
-    _delegate = RootRouterDelegate(_routeState);
-  }
-
-  @override
-  Widget build(BuildContext context) {
-    return RouteStateScope(
-      notifier: _routeState,
-      child: MaterialApp.router(
-        routerDelegate: _delegate,
-        routeInformationParser: _parser,
-        theme: ThemeData(
-            useMaterial3: true,
-            appBarTheme: const AppBarTheme(
-                elevation: 0,
-                iconTheme: IconThemeData(color: Colors.black),
-                titleTextStyle: TextStyle(
-                  color: Colors.black,
-                  fontSize: 18,
-                  fontWeight: FontWeight.bold,
-                ))),
-        debugShowCheckedModeBanner: false,
-      ),
-    );
-  }
-}

lib/13/01_/pages/color_add_page.dart

@@ -1,67 +0,0 @@
-import 'dart:math';
-
-import 'package:flutter/material.dart';
-
-class ColorAddPage extends StatefulWidget {
-  const ColorAddPage({super.key});
-
-  @override
-  State<ColorAddPage> createState() => _ColorAddPageState();
-}
-
-class _ColorAddPageState extends State<ColorAddPage> {
-  late Color _color;
-
-  @override
-  void initState() {
-    super.initState();
-    _color = randomColor;
-  }
-
-  @override
-  Widget build(BuildContext context) {
-    String text = '# ${_color.value.toRadixString(16)}';
-    return Scaffold(
-      appBar: AppBar(
-        title: Text('添加颜色'),
-        actions: [IconButton(onPressed: _selectColor, icon: Icon(Icons.check ))],
-      ),
-      body: Padding(
-        padding: const EdgeInsets.symmetric(horizontal: 16.0,vertical: 20),
-        child: Row(
-          children: [
-            Expanded(child: Text(text,style: TextStyle(color: _color,fontSize: 24,letterSpacing: 4),)),
-            Container(
-              margin: EdgeInsets.only(left: 10),
-              width: 40,
-              height: 40,
-              child: Icon(
-                Icons.sell_outlined,
-                color: Colors.white,
-              ),
-              decoration: BoxDecoration(
-                color: _color,
-                borderRadius: BorderRadius.circular(8),
-              ),
-            ),
-          ],
-        ),
-      ),
-    );
-  }
-
-  Random _random = Random();
-
-  Color get randomColor {
-    return Color.fromARGB(
-      255,
-      _random.nextInt(256),
-      _random.nextInt(256),
-      _random.nextInt(256),
-    );
-  }
-
-  void _selectColor() {
-    Navigator.of(context).pop(_color);
-  }
-}

lib/13/01_/pages/home_page.dart

@@ -1,46 +0,0 @@
-import 'package:flutter/material.dart';
-import '../route/route_state.dart';
-import 'color_add_page.dart';
-
-import '../../../common/components/colors_panel.dart';
-import '../../../common/pages/stl_color_page.dart';
-
-class HomePage extends StatefulWidget {
-  const HomePage({super.key});
-
-  @override
-  State<HomePage> createState() => _HomePageState();
-}
-
-class _HomePageState extends State<HomePage> {
-  final List<Color> _colors = [
-    Colors.red, Colors.black, Colors.blue, Colors.green, Colors.orange,
-    Colors.pink, Colors.purple, Colors.indigo, Colors.amber, Colors.cyan,
-    Colors.redAccent, Colors.grey, Colors.blueAccent, Colors.greenAccent, Colors.orangeAccent,
-    Colors.pinkAccent, Colors.purpleAccent, Colors.indigoAccent, Colors.amberAccent, Colors.cyanAccent,
-  ];
-
-  @override
-  Widget build(BuildContext context) {
-    return Scaffold(
-      appBar: AppBar(title:const Text('颜色主页')),
-      floatingActionButton: FloatingActionButton(
-        onPressed: _toAddPage,
-        child: const Icon(Icons.add),
-      ),
-      body: ColorsPanel(
-        colors: _colors,
-        onSelect: _selectColor,
-      ),
-    );
-  }
-
-  void _selectColor(Color color){
-    String value = '#${color.value.toRadixString(16)}';
-    RouteStateScope.of(context).go('/color/detail/$value');
-  }
-
-  void _toAddPage() async {
-    RouteStateScope.of(context).go('/color/add');
-  }
-}

lib/13/01_/route/parsed_route.dart

@@ -1,27 +0,0 @@
-// Copyright 2021, the Flutter project authors. Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:collection/collection.dart';
-import 'package:equatable/equatable.dart';
-import 'package:quiver/core.dart';
-
-/// A route path that has been parsed by [TemplateRouteParser].
-class ParsedRoute extends Equatable{
-  /// The current path location without query parameters. (/book/123)
-  final String path;
-
-  /// The path template (/book/:id)
-  final String pathTemplate;
-
-  /// The path parameters ({id: 123})
-  final Map<String, String> parameters;
-
-  /// The query parameters ({search: abc})
-  final Map<String, String> queryParameters;
-
-  const ParsedRoute(this.path, this.pathTemplate, this.parameters, this.queryParameters);
-
-  @override
-  List<Object?> get props => [path,pathTemplate,parameters,queryParameters];
-}

lib/13/01_/route/parser.dart

@@ -1,135 +0,0 @@
-import 'package:flutter/foundation.dart';
-import 'package:flutter/material.dart';
-import 'package:iroute/common/pages/stl_color_page.dart';
-import 'package:path_to_regexp/path_to_regexp.dart';
-import '../pages/home_page.dart';
-import '../pages/color_add_page.dart';
-import 'parsed_route.dart';
-import 'route_state.dart';
-
-class AppRouteParser extends RouteInformationParser<ParsedRoute> {
-  final List<String> allowPaths;
-  final ParsedRoute initialRoute;
-
-  AppRouteParser({
-    required this.allowPaths,
-    String initialRoute = '/',
-  }):initialRoute = ParsedRoute(initialRoute, initialRoute, {}, {});
-
-  @override
-  Future<ParsedRoute> parseRouteInformation(
-      RouteInformation routeInformation) async {
-    print("=======parseRouteInformation:${routeInformation.uri.path}===================");
-
-    final uri = routeInformation.uri;
-    final path = uri.toString();
-    final queryParams = uri.queryParameters;
-
-    ParsedRoute parsedRoute = initialRoute;
-
-    for (var pathTemplate in allowPaths) {
-      final parameters = <String>[];
-      var pathRegExp = pathToRegExp(pathTemplate, parameters: parameters);
-      if (pathRegExp.hasMatch(path)) {
-        final match = pathRegExp.matchAsPrefix(path);
-        if (match == null) continue;
-        final params = extract(parameters, match);
-        parsedRoute = ParsedRoute(path, pathTemplate, params, queryParams);
-      }
-    }
-    return parsedRoute;
-  }
-
-  @override
-  RouteInformation? restoreRouteInformation(ParsedRoute configuration) {
-    print("=======restoreRouteInformation:${configuration}===================");
-
-    return RouteInformation(uri: Uri.parse(configuration.path));
-  }
-}
-
-class RootRouterDelegate extends RouterDelegate<ParsedRoute>
-    with ChangeNotifier, PopNavigatorRouterDelegateMixin {
-
-  final RouteState routeState;
-
-
-  RootRouterDelegate(this.routeState) {
-    routeState.addListener(notifyListeners);
-  }
-
-  @override
-  final GlobalKey<NavigatorState> navigatorKey = GlobalKey<NavigatorState>();
-
-  @override
-  ParsedRoute get currentConfiguration {
-    print("=======currentConfiguration:${routeState.route.path}===================");
-
-    return routeState.route;
-  }
-
-  @override
-  void dispose() {
-    routeState.removeListener(notifyListeners);
-    routeState.dispose();
-    super.dispose();
-  }
-  final _addColorKey = const ValueKey('addColor');
-
-  @override
-  Widget build(BuildContext context) {
-    final routeState = RouteStateScope.of(context);
-    List<Page> pages =[];
-    final String pathTemplate = routeState.route.pathTemplate;
-
-    pages.add(MaterialPage(child: HomePage()));
-
-    String? selectedColor;
-    if (pathTemplate == '/color/detail/:colorHex') {
-      selectedColor = routeState.route.parameters['colorHex'];
-    }
-
-    if(selectedColor!=null){
-      pages.add(MaterialPage(child: StlColorPage(
-        color: Colors.redAccent,
-      )));
-    }
-
-    bool isAddPage = pathTemplate == '/color/add';
-    if(isAddPage){
-      pages.add(MaterialPage(
-          key: _addColorKey,
-          child: ColorAddPage()));
-    }
-    print("===build====================");
-    return Navigator(
-      key: navigatorKey,
-      pages: pages,
-      onPopPage: (route, result) {
-        print(result);
-        if (route.settings is Page &&
-            (route.settings as Page).key == _addColorKey) {
-          routeState.go('/color');
-        }
-        // appState.selectedBook = null;
-        // notifyListeners();
-        return route.didPop(result);
-      },
-    );
-  }
-
-  /// 格式: /a /b
-
-  @override
-  Future<void> setNewRoutePath(ParsedRoute configuration) async {
-    print("===setNewRoutePath===${configuration}=================");
-    routeState.route = configuration;
-    return;
-  }
-
-// @override
-// Future<void> setInitialRoutePath( configuration) async{
-//   _pages = [_pageMap['/']!];
-//   notifyListeners();
-// }
-}

lib/13/01_/route/route_state.dart

@@ -1,48 +0,0 @@
-// Copyright 2021, the Flutter project authors. Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:flutter/widgets.dart';
-
-import 'parsed_route.dart';
-import 'parser.dart';
-
-/// The current route state. To change the current route, call obtain the state
-/// using `RouteStateScope.of(context)` and call `go()`:
-///
-/// ```
-/// RouteStateScope.of(context).go('/book/2');
-/// ```
-class RouteState extends ChangeNotifier {
-  final AppRouteParser _parser;
-  ParsedRoute _route;
-
-  RouteState(this._parser) : _route = _parser.initialRoute;
-
-  ParsedRoute get route => _route;
-
-  set route(ParsedRoute route) {
-    // Don't notify listeners if the path hasn't changed.
-    if (_route == route) return;
-
-    _route = route;
-    notifyListeners();
-  }
-
-  Future<void> go(String route) async {
-    this.route = await _parser
-        .parseRouteInformation(RouteInformation(uri: Uri.parse(route)));
-  }
-}
-
-/// Provides the current [RouteState] to descendant widgets in the tree.
-class RouteStateScope extends InheritedNotifier<RouteState> {
-  const RouteStateScope({
-    required super.notifier,
-    required super.child,
-    super.key,
-  });
-
-  static RouteState of(BuildContext context) =>
-      context.dependOnInheritedWidgetOfExactType<RouteStateScope>()!.notifier!;
-}

lib/13/01__/main.dart

@@ -1,15 +0,0 @@
-import 'package:flutter/material.dart';
-import 'package:url_strategy/url_strategy.dart';
-
-import 'pages/app.dart';
-
-
-
-void main() {
-  setHashUrlStrategy();
-  runApp(const App());
-}
-
-
-
-

lib/13/01__/pages/app.dart

@@ -1,46 +0,0 @@
-import 'package:flutter/material.dart';
-import '../route/parser.dart';
-import '../route/route_state.dart';
-
-class App extends StatefulWidget {
-  const App({super.key});
-
-  @override
-  State<App> createState() => _AppState();
-}
-
-class _AppState extends State<App> {
-  late final RootRouterDelegate _delegate;
-  late final AppRouteParser _parser;
-  late final RouteState _routeState;
-
-  @override
-  void initState() {
-    super.initState();
-    _parser = AppRouteParser();
-    _routeState = RouteState(_parser,initial: '/color');
-    _delegate = RootRouterDelegate(_routeState);
-  }
-
-  @override
-  Widget build(BuildContext context) {
-    return RouteStateScope(
-      notifier: _routeState,
-      child: MaterialApp.router(
-        routerDelegate: _delegate,
-        routeInformationParser: _parser,
-        theme: ThemeData(
-            useMaterial3: true,
-            appBarTheme: const AppBarTheme(
-                elevation: 0,
-                iconTheme: IconThemeData(color: Colors.black),
-                titleTextStyle: TextStyle(
-                  color: Colors.black,
-                  fontSize: 18,
-                  fontWeight: FontWeight.bold,
-                ))),
-        debugShowCheckedModeBanner: false,
-      ),
-    );
-  }
-}

lib/13/01__/pages/color_add_page.dart

@@ -1,67 +0,0 @@
-import 'dart:math';
-
-import 'package:flutter/material.dart';
-
-class ColorAddPage extends StatefulWidget {
-  const ColorAddPage({super.key});
-
-  @override
-  State<ColorAddPage> createState() => _ColorAddPageState();
-}
-
-class _ColorAddPageState extends State<ColorAddPage> {
-  late Color _color;
-
-  @override
-  void initState() {
-    super.initState();
-    _color = randomColor;
-  }
-
-  @override
-  Widget build(BuildContext context) {
-    String text = '# ${_color.value.toRadixString(16)}';
-    return Scaffold(
-      appBar: AppBar(
-        title: Text('添加颜色'),
-        actions: [IconButton(onPressed: _selectColor, icon: Icon(Icons.check ))],
-      ),
-      body: Padding(
-        padding: const EdgeInsets.symmetric(horizontal: 16.0,vertical: 20),
-        child: Row(
-          children: [
-            Expanded(child: Text(text,style: TextStyle(color: _color,fontSize: 24,letterSpacing: 4),)),
-            Container(
-              margin: EdgeInsets.only(left: 10),
-              width: 40,
-              height: 40,
-              child: Icon(
-                Icons.sell_outlined,
-                color: Colors.white,
-              ),
-              decoration: BoxDecoration(
-                color: _color,
-                borderRadius: BorderRadius.circular(8),
-              ),
-            ),
-          ],
-        ),
-      ),
-    );
-  }
-
-  Random _random = Random();
-
-  Color get randomColor {
-    return Color.fromARGB(
-      255,
-      _random.nextInt(256),
-      _random.nextInt(256),
-      _random.nextInt(256),
-    );
-  }
-
-  void _selectColor() {
-    Navigator.of(context).pop(_color);
-  }
-}

lib/13/01__/pages/home_page.dart

@@ -1,46 +0,0 @@
-import 'package:flutter/material.dart';
-import '../route/route_state.dart';
-import 'color_add_page.dart';
-
-import '../../../common/components/colors_panel.dart';
-import '../../../common/pages/stl_color_page.dart';
-
-class HomePage extends StatefulWidget {
-  const HomePage({super.key});
-
-  @override
-  State<HomePage> createState() => _HomePageState();
-}
-
-class _HomePageState extends State<HomePage> {
-  final List<Color> _colors = [
-    Colors.red, Colors.black, Colors.blue, Colors.green, Colors.orange,
-    Colors.pink, Colors.purple, Colors.indigo, Colors.amber, Colors.cyan,
-    Colors.redAccent, Colors.grey, Colors.blueAccent, Colors.greenAccent, Colors.orangeAccent,
-    Colors.pinkAccent, Colors.purpleAccent, Colors.indigoAccent, Colors.amberAccent, Colors.cyanAccent,
-  ];
-
-  @override
-  Widget build(BuildContext context) {
-    return Scaffold(
-      appBar: AppBar(title:const Text('颜色主页')),
-      floatingActionButton: FloatingActionButton(
-        onPressed: _toAddPage,
-        child: const Icon(Icons.add),
-      ),
-      body: ColorsPanel(
-        colors: _colors,
-        onSelect: _selectColor,
-      ),
-    );
-  }
-
-  void _selectColor(Color color){
-    String value = color.value.toRadixString(16);
-    RouteStateScope.of(context).go('/color/detail?color=$value');
-  }
-
-  void _toAddPage() async {
-    RouteStateScope.of(context).go('/color/add');
-  }
-}

lib/13/01__/route/parsed_route.dart

@@ -1,21 +0,0 @@
-// Copyright 2021, the Flutter project authors. Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:collection/collection.dart';
-import 'package:equatable/equatable.dart';
-import 'package:quiver/core.dart';
-
-/// A route path that has been parsed by [TemplateRouteParser].
-class ParsedRoute extends Equatable{
-  /// The current path location without query parameters. (/book/123)
-  final String path;
-
-  /// The query parameters ({search: abc})
-  final Map<String, String> queryParameters;
-
-  const ParsedRoute(this.path,  this.queryParameters);
-
-  @override
-  List<Object?> get props => [path,queryParameters];
-}

lib/13/01__/route/parser.dart

@@ -1,119 +0,0 @@
-import 'package:flutter/foundation.dart';
-import 'package:flutter/material.dart';
-import 'package:iroute/common/pages/stl_color_page.dart';
-import 'package:path_to_regexp/path_to_regexp.dart';
-import '../pages/home_page.dart';
-import '../pages/color_add_page.dart';
-import 'parsed_route.dart';
-import 'route_state.dart';
-
-class AppRouteParser extends RouteInformationParser<ParsedRoute> {
-
-  @override
-  Future<ParsedRoute> parseRouteInformation(
-      RouteInformation routeInformation) async {
-    print("=======parseRouteInformation:${routeInformation.uri.path}===================");
-
-    final uri = routeInformation.uri;
-    final path = uri.toString();
-    final queryParams = uri.queryParameters;
-
-    return ParsedRoute(path, queryParams);
-  }
-
-  @override
-  RouteInformation? restoreRouteInformation(ParsedRoute configuration) {
-    print("=======restoreRouteInformation:${configuration}===================");
-
-    return RouteInformation(uri: Uri.parse(configuration.path));
-  }
-}
-
-class RootRouterDelegate extends RouterDelegate<ParsedRoute>
-    with ChangeNotifier, PopNavigatorRouterDelegateMixin {
-
-  final RouteState routeState;
-
-
-  RootRouterDelegate(this.routeState) {
-    routeState.addListener(notifyListeners);
-  }
-
-  @override
-  final GlobalKey<NavigatorState> navigatorKey = GlobalKey<NavigatorState>();
-
-  @override
-  ParsedRoute get currentConfiguration {
-    print("=======currentConfiguration:${routeState.route.path}===================");
-
-    return routeState.route;
-  }
-
-  @override
-  void dispose() {
-    routeState.removeListener(notifyListeners);
-    routeState.dispose();
-    super.dispose();
-  }
-
-  final _addColorKey = const ValueKey('addColor');
-
-  @override
-  Widget build(BuildContext context) {
-    final routeState = RouteStateScope.of(context);
-    List<Page> pages =[];
-    final String path = routeState.route.path;
-
-    pages.add(MaterialPage(child: HomePage()));
-
-    String? selectedColor;
-    if (path.startsWith('/color/detail') ) {
-      selectedColor = routeState.route.queryParameters['color'];
-    }
-
-    if(selectedColor!=null){
-      pages.add(MaterialPage(child: StlColorPage(
-        color: Color(int.parse(selectedColor,radix: 16)),
-      )));
-    }
-
-    bool isAddPage = path == '/color/add';
-    if(isAddPage){
-      pages.add(MaterialPage(
-          key: _addColorKey,
-          child: ColorAddPage()));
-    }
-
-    return Navigator(
-      key: navigatorKey,
-      pages: pages,
-      onPopPage: (route, result) {
-        if (route.settings is Page && (route.settings as Page).key == _addColorKey) {
-          routeState.go('/color');
-        }
-
-        if(selectedColor!=null){
-          selectedColor = null;
-          routeState.go('/color');
-        }
-
-        return route.didPop(result);
-      },
-    );
-  }
-
-  /// 格式: /a /b
-
-  @override
-  Future<void> setNewRoutePath(ParsedRoute configuration) async {
-    print("===setNewRoutePath===${configuration}=================");
-    routeState.route = configuration;
-    return;
-  }
-
-// @override
-// Future<void> setInitialRoutePath( configuration) async{
-//   _pages = [_pageMap['/']!];
-//   notifyListeners();
-// }
-}

lib/13/01__/route/route_state.dart

@@ -1,48 +0,0 @@
-// Copyright 2021, the Flutter project authors. Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:flutter/widgets.dart';
-
-import 'parsed_route.dart';
-import 'parser.dart';
-
-/// The current route state. To change the current route, call obtain the state
-/// using `RouteStateScope.of(context)` and call `go()`:
-///
-/// ```
-/// RouteStateScope.of(context).go('/book/2');
-/// ```
-class RouteState extends ChangeNotifier {
-  final AppRouteParser _parser;
-  ParsedRoute _route;
-
-  RouteState(this._parser,{String initial=''}) : _route = ParsedRoute(initial,{});
-
-  ParsedRoute get route => _route;
-
-  set route(ParsedRoute route) {
-    // Don't notify listeners if the path hasn't changed.
-    if (_route == route) return;
-
-    _route = route;
-    notifyListeners();
-  }
-
-  Future<void> go(String route) async {
-    this.route = await _parser
-        .parseRouteInformation(RouteInformation(uri: Uri.parse(route)));
-  }
-}
-
-/// Provides the current [RouteState] to descendant widgets in the tree.
-class RouteStateScope extends InheritedNotifier<RouteState> {
-  const RouteStateScope({
-    required super.notifier,
-    required super.child,
-    super.key,
-  });
-
-  static RouteState of(BuildContext context) =>
-      context.dependOnInheritedWidgetOfExactType<RouteStateScope>()!.notifier!;
-}

lib/13/01___/main.dart

@@ -1,15 +0,0 @@
-import 'package:flutter/material.dart';
-import 'package:url_strategy/url_strategy.dart';
-
-import 'pages/app.dart';
-
-
-
-void main() {
-  setHashUrlStrategy();
-  runApp(const App());
-}
-
-
-
-

lib/13/01___/pages/app.dart

@@ -1,36 +0,0 @@
-import 'package:flutter/material.dart';
-import '../route/parser.dart';
-import '../route/route_state.dart';
-
-class App extends StatefulWidget {
-  const App({super.key});
-
-  @override
-  State<App> createState() => _AppState();
-}
-
-AppRouteParser parser = AppRouteParser();
-AppRouterDelegate routerDelegate = AppRouterDelegate();
-
-class _AppState extends State<App> {
-
-  @override
-  Widget build(BuildContext context) {
-    return MaterialApp.router(
-      routerDelegate: routerDelegate,
-      routeInformationParser: parser,
-      // backButtonDispatcher: RootBackButtonDispatcher(),
-      theme: ThemeData(
-          useMaterial3: true,
-          appBarTheme: const AppBarTheme(
-              elevation: 0,
-              iconTheme: IconThemeData(color: Colors.black),
-              titleTextStyle: TextStyle(
-                color: Colors.black,
-                fontSize: 18,
-                fontWeight: FontWeight.bold,
-              ))),
-      debugShowCheckedModeBanner: false,
-    );
-  }
-}

lib/13/01___/pages/color_add_page.dart

@@ -1,67 +0,0 @@
-import 'dart:math';
-
-import 'package:flutter/material.dart';
-
-class ColorAddPage extends StatefulWidget {
-  const ColorAddPage({super.key});
-
-  @override
-  State<ColorAddPage> createState() => _ColorAddPageState();
-}
-
-class _ColorAddPageState extends State<ColorAddPage> {
-  late Color _color;
-
-  @override
-  void initState() {
-    super.initState();
-    _color = randomColor;
-  }
-
-  @override
-  Widget build(BuildContext context) {
-    String text = '# ${_color.value.toRadixString(16)}';
-    return Scaffold(
-      appBar: AppBar(
-        title: Text('添加颜色'),
-        actions: [IconButton(onPressed: _selectColor, icon: Icon(Icons.check ))],
-      ),
-      body: Padding(
-        padding: const EdgeInsets.symmetric(horizontal: 16.0,vertical: 20),
-        child: Row(
-          children: [
-            Expanded(child: Text(text,style: TextStyle(color: _color,fontSize: 24,letterSpacing: 4),)),
-            Container(
-              margin: EdgeInsets.only(left: 10),
-              width: 40,
-              height: 40,
-              child: Icon(
-                Icons.sell_outlined,
-                color: Colors.white,
-              ),
-              decoration: BoxDecoration(
-                color: _color,
-                borderRadius: BorderRadius.circular(8),
-              ),
-            ),
-          ],
-        ),
-      ),
-    );
-  }
-
-  Random _random = Random();
-
-  Color get randomColor {
-    return Color.fromARGB(
-      255,
-      _random.nextInt(256),
-      _random.nextInt(256),
-      _random.nextInt(256),
-    );
-  }
-
-  void _selectColor() {
-    Navigator.of(context).pop(_color);
-  }
-}

lib/13/01___/pages/home_page.dart

@@ -1,47 +0,0 @@
-import 'package:flutter/material.dart';
-import '../route/route_state.dart';
-import 'app.dart';
-import 'color_add_page.dart';
-
-import '../../../common/components/colors_panel.dart';
-import '../../../common/pages/stl_color_page.dart';
-
-class HomePage extends StatefulWidget {
-  const HomePage({super.key});
-
-  @override
-  State<HomePage> createState() => _HomePageState();
-}
-
-class _HomePageState extends State<HomePage> {
-  final List<Color> _colors = [
-    Colors.red, Colors.black, Colors.blue, Colors.green, Colors.orange,
-    Colors.pink, Colors.purple, Colors.indigo, Colors.amber, Colors.cyan,
-    Colors.redAccent, Colors.grey, Colors.blueAccent, Colors.greenAccent, Colors.orangeAccent,
-    Colors.pinkAccent, Colors.purpleAccent, Colors.indigoAccent, Colors.amberAccent, Colors.cyanAccent,
-  ];
-
-  @override
-  Widget build(BuildContext context) {
-    return Scaffold(
-      appBar: AppBar(title:const Text('颜色主页')),
-      floatingActionButton: FloatingActionButton(
-        onPressed: _toAddPage,
-        child: const Icon(Icons.add),
-      ),
-      body: ColorsPanel(
-        colors: _colors,
-        onSelect: _selectColor,
-      ),
-    );
-  }
-
-  void _selectColor(Color color){
-    String value = color.value.toRadixString(16);
-    routerDelegate.go('/color/detail?color=$value');
-  }
-
-  void _toAddPage() async {
-    routerDelegate.go('/color/add');
-  }
-}

lib/13/01___/route/parsed_route.dart

@@ -1,21 +0,0 @@
-// Copyright 2021, the Flutter project authors. Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:collection/collection.dart';
-import 'package:equatable/equatable.dart';
-import 'package:quiver/core.dart';
-
-/// A route path that has been parsed by [TemplateRouteParser].
-class ParsedRoute extends Equatable{
-  /// The current path location without query parameters. (/book/123)
-  final String path;
-
-  /// The query parameters ({search: abc})
-  final Map<String, String> queryParameters;
-
-  const ParsedRoute(this.path,  this.queryParameters);
-
-  @override
-  List<Object?> get props => [path,queryParameters];
-}

lib/13/01___/route/parser.dart

@@ -1,122 +0,0 @@
-import 'package:flutter/foundation.dart';
-import 'package:flutter/material.dart';
-import 'package:iroute/common/pages/stl_color_page.dart';
-import 'package:path_to_regexp/path_to_regexp.dart';
-import '../pages/app.dart';
-import '../pages/home_page.dart';
-import '../pages/color_add_page.dart';
-import 'parsed_route.dart';
-import 'route_state.dart';
-
-class AppRouteParser extends RouteInformationParser<ParsedRoute> {
-  @override
-  Future<ParsedRoute> parseRouteInformation(
-      RouteInformation routeInformation) async {
-    print("=======parseRouteInformation:${routeInformation.uri.path}===================");
-
-    final uri = routeInformation.uri;
-    final path = uri.toString();
-    final queryParams = uri.queryParameters;
-
-    return ParsedRoute(path, queryParams);
-  }
-
-  @override
-  RouteInformation? restoreRouteInformation(ParsedRoute configuration) {
-    print("=======restoreRouteInformation:${configuration}===================");
-    return RouteInformation(uri: Uri.parse(configuration.path));
-  }
-}
-
-class AppRouterDelegate extends RouterDelegate<ParsedRoute>
-    with ChangeNotifier, PopNavigatorRouterDelegateMixin {
-
-  AppRouterDelegate({String initial = '/'}) {
-    _routes.add(ParsedRoute(initial, {}));
-  }
-
-   final List<ParsedRoute> _routes = [];
-
-  @override
-  final GlobalKey<NavigatorState> navigatorKey = GlobalKey<NavigatorState>();
-
-  @override
-  ParsedRoute get currentConfiguration {
-    return _routes.last;
-  }
-
-  Future<void> go(String route) async {
-    ParsedRoute _route = await parser.parseRouteInformation(RouteInformation(uri: Uri.parse(route)));
-    if(_route!=_routes.last){
-      _routes.add(_route);
-    }
-    notifyListeners();
-  }
-
-  final _addColorKey = const ValueKey('addColor');
-  final _colorDetailKey = const ValueKey('ColorDetail');
-
-  @override
-  Widget build(BuildContext context) {
-    List<Page> pages = [];
-
-    for (ParsedRoute route in _routes) {
-      Page? page = _buildPageByPath(route);
-      if(page!=null){
-        pages.add(page);
-      }
-    }
-
-    return Navigator(
-      key: navigatorKey,
-      pages: pages,
-      onPopPage: _onPagePop,
-    );
-  }
-
-  Page? _buildPageByPath(ParsedRoute route) {
-    if(route.path == '/'){
-      return MaterialPage(child: HomePage());
-    }
-
-    if(route.path.startsWith('/color/detail')){
-      String? selectedColor = route.queryParameters['color'];
-
-      if (selectedColor != null) {
-        Color color = Color(int.parse(selectedColor, radix: 16));
-        return MaterialPage(key: _colorDetailKey, child: StlColorPage(color: color));
-      }
-    }
-
-    if (route.path == '/color/add') {
-     return MaterialPage(key: _addColorKey, child: ColorAddPage());
-    }
-
-    return null;
-  }
-
-  @override
-  Future<void> setNewRoutePath(ParsedRoute configuration) async {
-    print("===setNewRoutePath===${configuration}=================");
-    if(configuration!=_routes.last){
-      _routes.add(configuration);
-    }
-  }
-
-  bool _onPagePop(Route route, result) {
-    RouteSettings settings = route.settings;
-    if(settings is Page){
-      if(settings.key==_addColorKey){
-        _routes.removeLast();
-        notifyListeners();
-      }
-      if(settings.key==_colorDetailKey){
-        _routes.removeLast();
-        notifyListeners();
-      }
-    }
-    return route.didPop(result);
-  }
-
-
-}

lib/13/01___/route/route_state.dart

@@ -1,48 +0,0 @@
-// Copyright 2021, the Flutter project authors. Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:flutter/widgets.dart';
-
-import 'parsed_route.dart';
-import 'parser.dart';
-
-/// The current route state. To change the current route, call obtain the state
-/// using `RouteStateScope.of(context)` and call `go()`:
-///
-/// ```
-/// RouteStateScope.of(context).go('/book/2');
-/// ```
-class RouteState extends ChangeNotifier {
-  final AppRouteParser _parser;
-  ParsedRoute _route;
-
-  RouteState(this._parser,{String initial=''}) : _route = ParsedRoute(initial,{});
-
-  ParsedRoute get route => _route;
-
-  set route(ParsedRoute route) {
-    // Don't notify listeners if the path hasn't changed.
-    if (_route == route) return;
-
-    _route = route;
-    notifyListeners();
-  }
-
-  Future<void> go(String route) async {
-    this.route = await _parser
-        .parseRouteInformation(RouteInformation(uri: Uri.parse(route)));
-  }
-}
-
-// /// Provides the current [RouteState] to descendant widgets in the tree.
-// class RouteStateScope extends InheritedNotifier<RouteState> {
-//   const RouteStateScope({
-//     required super.notifier,
-//     required super.child,
-//     super.key,
-//   });
-//
-//   static RouteState of(BuildContext context) =>
-//       context.dependOnInheritedWidgetOfExactType<RouteStateScope>()!.notifier!;
-// }

lib/13/01____/pages/app/app.dart

@@ -1,29 +0,0 @@
-import 'package:flutter/material.dart';
-
-
-import '../../main.dart';
-import 'app_tool_bar.dart';
-
-class App extends StatelessWidget {
-  const App({super.key});
-
-  @override
-  Widget build(BuildContext context) {
-    return MaterialApp(
-        theme: ThemeData(
-            appBarTheme: const AppBarTheme(
-                elevation: 0,
-                iconTheme: IconThemeData(color: Colors.black),
-                titleTextStyle: TextStyle(
-                  color: Colors.black,
-                  fontSize: 18,
-                  fontWeight: FontWeight.bold,
-                ))),
-        debugShowCheckedModeBanner: false,
-        home:  Scaffold(
-          appBar: AppToolBar(),
-          body: Router(routerDelegate: router),
-        ));
-  }
-}
-

lib/13/01____/pages/app/app_router_delegate.dart

@@ -1,73 +0,0 @@
-import 'package:flutter/material.dart';
-import '../page_a.dart';
-import '../page_b.dart';
-import '../page_c.dart';
-import '../home_page.dart';
-
-class AppRouterDelegate extends RouterDelegate<String> with ChangeNotifier, PopNavigatorRouterDelegateMixin {
-
-  AppRouterDelegate({String initial = '/'}):_path=initial;
-
-  String _path;
-
-  String get path=>  _path;
-
-  void go(String path){
-    _path = path;
-    notifyListeners();
-  }
-
-  @override
-  Widget build(BuildContext context) {
-    return Navigator(
-      onPopPage: _onPopPage,
-      pages: parserConfig(_path).map((e) => _pageMap[e]!).toList(),
-    );
-  }
-
-  final Map<String, Page> _pageMap = const {
-    '/': MaterialPage(child: HomePage()),
-    'a': MaterialPage(child: PageA()),
-    'b': MaterialPage(child: PageB()),
-    'c': MaterialPage(child: PageC()),
-  };
-
-  Widget buildNavigatorByConfig(String path) {
-    return Navigator(
-      onPopPage: _onPopPage,
-      pages: parserConfig(path).map((e) => _pageMap[e]!).toList(),
-    );
-  }
-
-  bool _onPopPage(Route route, result) {
-    if(path.length>1){
-      int last = path.lastIndexOf('/');
-      _path = path.substring(0,last);
-      if(_path.isEmpty) _path = '/';
-      notifyListeners();
-    }
-    return route.didPop(result);
-  }
-
-  @override
-  GlobalKey<NavigatorState>? navigatorKey = GlobalKey<NavigatorState>();
-
-
-  @override
-  Future<void> setNewRoutePath(String configuration) async{
-    _path = configuration;
-  }
-
-  List<String> parserConfig(String path){
-    /// 例: /a/b/c  进栈 /,a,b,c 界面
-    List<String> result = ['/'];
-    if(path.startsWith('/')){
-      path = path.substring(1);
-      if(path.isNotEmpty){
-        List<String> parts = path.split('/');
-        result.addAll(parts);
-      }
-    }
-    return result;
-  }
-}

lib/13/01____/pages/app/app_tool_bar.dart

@@ -1,64 +0,0 @@
-import 'package:flutter/material.dart';
-import '../../main.dart';
-
-class AppToolBar extends StatefulWidget implements PreferredSizeWidget{
-  const AppToolBar({super.key});
-
-  @override
-  State<AppToolBar> createState() => _AppToolBarState();
-
-  @override
-  Size get preferredSize => const Size.fromHeight(kToolbarHeight);
-}
-
-class _AppToolBarState extends State<AppToolBar> {
-
-  TextEditingController _ctrl = TextEditingController();
-
-  @override
-  void initState() {
-    super.initState();
-    _changRoute();
-    router.addListener(_changRoute);
-  }
-
-  @override
-  void dispose() {
-    router.removeListener(_changRoute);
-    _ctrl.dispose();
-    super.dispose();
-  }
-
-  void _changRoute() {
-    _ctrl.text=router.path;
-  }
-
-  @override
-  Widget build(BuildContext context) {
-
-    return AppBar(
-      backgroundColor: Colors.white,
-      elevation: 0,
-      title : TextField(
-        controller: _ctrl,
-        onSubmitted: _onSubmitted,
-        decoration: InputDecoration( //装饰
-            filled: true, //填充
-            fillColor: Color(0xffF3F6F9), //填充颜色
-            constraints: BoxConstraints(maxHeight: 34), //约束信息
-            contentPadding: EdgeInsets.only(top: -14,left: 10),
-            border: UnderlineInputBorder( //边线信息
-              borderSide: BorderSide.none,
-              borderRadius: BorderRadius.all(Radius.circular(6)),
-            ),
-            hintText: "请输入路由", //提示字
-            hintStyle: TextStyle(fontSize: 14) //提示字样式
-        ),
-      ),
-    );
-  }
-
-  void _onSubmitted(String value) {
-    router.go(value);
-  }
-}

lib/13/01____/pages/home_page.dart

@@ -1,30 +0,0 @@
-
-import 'package:flutter/material.dart';
-
-import '../main.dart';
-
-
-class HomePage extends StatelessWidget {
-  const HomePage({super.key});
-
-  @override
-  Widget build(BuildContext context) {
-    const Color bgColor = Color(0xffCCFFCC);
-
-    return Scaffold(
-      backgroundColor: bgColor,
-        appBar: AppBar(
-          title: const Text('主页起点'),
-          backgroundColor: bgColor,
-        ),
-      body: Center(child: ElevatedButton(
-        onPressed: () => toPageA(context),
-        child: const Text('Push A'),
-      ),
-    ));
-  }
-
-  void toPageA(BuildContext context) {
-    router.go('/a');
-  }
-}

lib/13/01____/pages/page_a.dart

@@ -1,30 +0,0 @@
-import 'package:flutter/material.dart';
-import '../main.dart';
-
-class PageA extends StatelessWidget {
-  const PageA({super.key});
-
-  @override
-  Widget build(BuildContext context) {
-    const Color bgColor = Color(0xffCCFFFF);
-
-    return Scaffold(
-        backgroundColor: bgColor,
-        appBar: AppBar(
-          title: const Text('A 界面'),
-          backgroundColor: bgColor,
-        ),
-        body: Center(
-          child: ElevatedButton(
-            onPressed: () => toPageB(context),
-            child: const Text('Push B'),
-          ),
-        ));
-  }
-
-  void toPageB(BuildContext context) {
-    // router.value = ['/', 'a', 'b'];
-    router.go('/a/b');
-  }
-
-}

lib/13/01____/pages/page_b.dart

@@ -1,32 +0,0 @@
-import 'package:flutter/material.dart';
-
-import '../main.dart';
-
-class PageB extends StatelessWidget {
-  const PageB({super.key});
-
-
-  @override
-  Widget build(BuildContext context) {
-    const Color bgColor = Color(0xffCCE5FF);
-
-    return Scaffold(
-        backgroundColor: bgColor,
-        appBar: AppBar(
-          title: const Text('B 界面'),
-          backgroundColor: bgColor,
-
-        ),
-        body: Center(
-          child: ElevatedButton(
-            onPressed: () => toPageC(context),
-            child: const Text('Push C'),
-          ),
-        ));
-  }
-
-  void toPageC(BuildContext context){
-    router.go('/a/b/c');
-  }
-
-}

lib/13/01____/pages/page_c.dart

@@ -1,24 +0,0 @@
-import 'package:flutter/material.dart';
-
-import '../main.dart';
-
-class PageC extends StatelessWidget {
-  const PageC({super.key});
-
-  @override
-  Widget build(BuildContext context) {
-    const Color bgColor = Color(0xffFFE6CC);
-
-    return Scaffold(
-        backgroundColor: bgColor,
-        appBar: AppBar(
-          title: const Text('C 界面'),
-          backgroundColor: bgColor,
-        ),
-        body: Center(
-          child: Text('到达终点'),
-        ));
-  }
-
-
-}

lib/13/02/main.dart

@@ -1,14 +0,0 @@
-import 'package:flutter/material.dart';
-import 'package:window_manager/window_manager.dart';
-import 'pages/app/app.dart';
-import 'pages/app/app_router_delegate.dart';
-
-
-AppRouterDelegate router = AppRouterDelegate();
-
-void main() {
-  runApp(const App());
-}
-
-
-

lib/13/02_/main.dart

@@ -1,13 +0,0 @@
-import 'package:flutter/material.dart';
-
-import 'pages/app/app.dart';
-
-
-
-void main() {
-  runApp(const App());
-}
-
-
-
-

lib/13/02_/menus.dart

@@ -1,83 +0,0 @@
-import 'package:toly_menu/toly_menu.dart';
-
-List<MenuData> menus = [
-  MenuData(path: '/dashboard', label: '总览面板', children: [
-    MenuData(path: '/dashboard/data_analyse', label: '数据分析', deep: 1),
-    MenuData(path: '/dashboard/work_board', label: '工作台', deep: 1, children: [
-      MenuData(path: '/dashboard/work_board/a', label: '第一工作区', deep: 2),
-      MenuData(path: '/dashboard/work_board/b', label: '第二工作区', deep: 2),
-      MenuData(path: '/dashboard/work_board/c', label: '第三工作区', deep: 2),
-    ]),
-  ]),
-  MenuData(path: '/cases', label: '案例演示', children: [
-    MenuData(path: '/cases/counter', label: '计数器项目', deep: 1),
-    MenuData(path: '/cases/guess', label: '猜数字项目', deep: 1),
-    MenuData(path: '/cases/muyu', label: '电子木鱼项目', deep: 1),
-    MenuData(path: '/cases/canvas', label: '白板绘制项目', deep: 1),
-    MenuData(path: '/cases/timer', label: '计时器项目', deep: 1),
-  ]),
-  MenuData(path: '/manager', label: '系统管理', children: [
-    MenuData(path: '/manager/account', label: '账号管理', deep: 1),
-    MenuData(path: '/manager/role', label: '角色管理', deep: 1),
-    MenuData(path: '/manager/menu', label: '菜单管理', deep: 1),
-  ]),
-  MenuData(path: '/knowledge', label: '知识库管理', children: [
-    MenuData(path: '/knowledge/a', label: '语文知识', deep: 1, children: [
-      MenuData(
-        path: '/knowledge/a/1',
-        label: '诗词歌赋',
-        deep: 2,
-      ),
-      MenuData(
-        path: '/knowledge/a/2',
-        label: '人物故事',
-        deep: 2,
-      ),
-      MenuData(
-        path: '/knowledge/a/3',
-        label: '名著推荐',
-        deep: 2,
-      )
-    ]),
-    MenuData(
-        path: '/knowledge/b',
-        label: '数学知识',
-        children: [
-          MenuData(
-            path: '/knowledge/b/1',
-            label: '人物故事',
-            deep: 2,
-          ),
-          MenuData(
-            path: '/knowledge/b/2',
-            label: '数学定理',
-            deep: 2,
-          ),
-          MenuData(
-            path: '/knowledge/b/3',
-            label: '几何知识',
-            deep: 2,
-          ),
-          MenuData(
-            path: '/knowledge/b/4',
-            label: '代数知识',
-            deep: 2,
-          )
-        ],
-        deep: 1),
-    MenuData(
-      path: '/knowledge/c',
-      label: '英语知识',
-      deep: 1,
-    ),
-  ]),
-  MenuData(path: '/widgets', label: '组件集录', children: [
-    MenuData(path: '/widgets/stateless', label: '无状态组件', deep: 1),
-    MenuData(path: '/widgets/stateful', label: '有状态组件', deep: 1),
-    MenuData(path: '/widgets/single_child', label: '单子渲染组件', deep: 1),
-    MenuData(path: '/widgets/mutli_child', label: '多子渲染组件', deep: 1),
-    MenuData(path: '/widgets/sliver', label: '滑片组件', deep: 1),
-    MenuData(path: '/widgets/proxy', label: '代理组件', deep: 1),
-    MenuData(path: '/widgets/other', label: '其他组件', deep: 1),
-  ])
-];

lib/13/02_/pages/app/app.dart

@@ -1,107 +0,0 @@
-import 'package:flutter/material.dart';
-import 'package:go_router/go_router.dart';
-import 'package:toly_menu/toly_menu.dart';
-
-import '../../menus.dart';
-import '../../transition/fade_transition.dart';
-import 'root_content.dart';
-
-class App extends StatelessWidget {
-  const App({super.key});
-
-  @override
-  Widget build(BuildContext context) {
-    return MaterialApp(
-        theme: ThemeData(
-          pageTransitionsTheme: PageTransitionsTheme(
-            builders: {
-              TargetPlatform.android: FadeUpwardsPageTransitionsBuilder(),
-              TargetPlatform.iOS: CupertinoPageTransitionsBuilder(),
-              TargetPlatform.macOS: FadeUpwardsPageTransitionsBuilder(),
-              TargetPlatform.windows: FadeTransitionsBuilder(),
-            }
-          ),
-
-            appBarTheme: const AppBarTheme(
-                elevation: 0,
-                iconTheme: IconThemeData(color: Colors.black),
-                backgroundColor: Colors.white,
-                titleTextStyle: TextStyle(
-                  color: Colors.black,
-                  fontSize: 18,
-                  fontWeight: FontWeight.bold,
-                ))),
-        debugShowCheckedModeBanner: false,
-        home: AppLayout());
-  }
-}
-
-class AppLayout extends StatelessWidget {
-  const AppLayout({super.key});
-
-  @override
-  Widget build(BuildContext context) {
-    return  Scaffold(
-      body: Row(
-        children: [
-          SizedBox(
-            width: 210,
-            child: MenuPanel(),
-          ),
-          // Container()
-          Expanded(child: RootContent())
-        ],
-      ),
-      // appBar: AppToolBar(),
-      // body: AppNavigation(),
-    );
-  }
-}
-
-class MenuPanel extends StatefulWidget {
-  const MenuPanel({super.key});
-
-  @override
-  State<MenuPanel> createState() => _MenuPanelState();
-}
-
-class _MenuPanelState extends State<MenuPanel> {
-  MenuState state = MenuState(expandMenus: ['/dashboard'], activeMenu: '/dashboard/data_analyse', items: menus);
-
-  @override
-  Widget build(BuildContext context) {
-    return TolyMenu(state: state, onSelect: _onSelect);
-  }
-
-  void _onSelect(MenuData menu) {
-
-
-    if(menu.isLeaf){
-      state = state.copyWith(activeMenu: menu.path);
-      print("menu.path：${menu.path}");
-      goRouter.go(menu.path);
-    }else{
-      List<String> menus = [];
-      String path = menu.path.substring(1);
-      List<String> parts = path.split('/');
-
-      if(parts.isNotEmpty){
-        String path = '';
-        for (String part in parts) {
-          path+='/$part';
-          menus.add(path);
-        }
-      }
-
-      if(state.expandMenus.contains(menu.path)){
-        menus.remove(menu.path);
-      }
-
-      state = state.copyWith(expandMenus: menus);
-
-    }
-    setState(() {
-
-    });
-  }
-}

lib/13/02_/pages/app/root_content.dart

@@ -1,140 +0,0 @@
-import 'package:flutter/material.dart';
-import 'package:go_router/go_router.dart';
-import 'package:iroute/cases/cases.dart';
-
-import '../color_page.dart';
-
-// GoRouter configuration
-final goRouter = GoRouter(
-  initialLocation: '/manager',
-  routes: [
-    GoRoute(
-        path: '/dashboard',
-        builder: (_,__)=>SizedBox(),
-        routes: [
-          GoRoute(
-            path: 'data_analyse',
-            // builder: (context, state) => ColorPage(title: 'data_analyse',),
-            pageBuilder: (context, state) {
-              return CustomTransitionPage(
-                key: state.pageKey,
-                child: ColorPage(title: 'data_analyse',),
-                transitionsBuilder: (context, animation, secondaryAnimation, child) {
-                  // Change the opacity of the screen using a Curve based on the the animation's
-                  // value
-                  return FadeTransition(
-                    opacity:
-                    CurveTween(curve: Curves.easeInOutCirc).animate(animation),
-                    child: child,
-                  );
-                },
-              );
-            },
-          ),
-
-          GoRoute(
-            path: 'work_board',
-              builder: (_,__)=>SizedBox(),
-            routes: [
-              GoRoute(
-                path: 'a',
-                builder: (context, state) => ColorPage(title: '第一工作区',),
-              ),
-              GoRoute(
-                path: 'b',
-                builder: (context, state) => ColorPage(title: '第二工作区',),
-              ),
-              GoRoute(
-                path: 'c',
-                builder: (context, state) => ColorPage(title: '第三工作区',),
-              ),
-            ]
-          ),
-
-        ]
-    ),
-
-    GoRoute(
-        path: '/cases',
-        builder: (_,__)=>SizedBox(),
-        routes: [
-          GoRoute(
-            path: 'counter',
-            builder: (context, state) => CounterPage(),
-          ),
-          GoRoute(
-            path: 'guess',
-            builder: (context, state) => GuessPage(),
-          ),
-          GoRoute(
-            path: 'muyu',
-            builder: (context, state) => ColorPage(title: '第三工作区',),
-          ),       GoRoute(
-            path: 'canvas',
-            builder: (context, state) => Paper(),
-          ),       GoRoute(
-            path: 'muyu',
-            builder: (context, state) => ColorPage(title: '第三工作区',),
-          ),
-        ]
-    ),
-    GoRoute(
-        path: '/manager', builder: (_,__)=>SizedBox(),
-        routes: [
-          GoRoute(
-            path: 'account',
-            builder: (context, state) => ColorPage(title: 'account',),
-          ),
-          GoRoute(
-            path: 'role',
-            builder: (context, state) => ColorPage(title: 'role',),
-          ),
-        ]
-    ),
-  ],
-);
-
-
-class RootContent extends StatelessWidget {
-  const RootContent({super.key});
-
-  @override
-  Widget build(BuildContext context) {
-
-
-    return Router.withConfig(config: goRouter);
-  }
-}
-
-class RootContentDelegate extends RouterDelegate with ChangeNotifier,PopNavigatorRouterDelegateMixin{
-
-
-  @override
-  final GlobalKey<NavigatorState> navigatorKey = GlobalKey<NavigatorState>();
-
-
-  @override
-  Widget build(BuildContext context) {
-    return Navigator(
-      key: navigatorKey,
-      pages: [
-
-      ],
-      onPopPage: (route, result) {
-        // appState.selectedBook = null;
-        // notifyListeners();
-        return route.didPop(result);
-      },
-    );
-  }
-
-
-  @override
-  Future<void> setNewRoutePath(configuration) {
-    // TODO: implement setNewRoutePath
-    throw UnimplementedError();
-  }
-
-
-
-}

lib/13/02_/pages/color_page.dart

@@ -1,11 +0,0 @@
-import 'package:flutter/material.dart';
-
-class ColorPage extends StatelessWidget {
-  final String title;
-  const ColorPage({super.key, required this.title});
-
-  @override
-  Widget build(BuildContext context) {
-    return Scaffold(body: Center(child: Text(title)));
-  }
-}

lib/13/02_/transition/fade_transition.dart

@@ -1,58 +0,0 @@
-
-
-
-
-import 'package:flutter/material.dart';
-
-
-class FadeTransitionsBuilder extends PageTransitionsBuilder {
-  /// Constructs a page transition animation that slides the page up.
-  const FadeTransitionsBuilder();
-
-  @override
-  Widget buildTransitions<T>(
-      PageRoute<T>? route,
-      BuildContext? context,
-      Animation<double> animation,
-      Animation<double>? secondaryAnimation,
-      Widget child,
-      ) {
-    return _FadeUpwardsPageTransition(routeAnimation: animation, child: child);
-  }
-}
-
-class _FadeUpwardsPageTransition extends StatelessWidget {
-  _FadeUpwardsPageTransition({
-    required Animation<double> routeAnimation, // The route's linear 0.0 - 1.0 animation.
-    required this.child,
-  }) : _positionAnimation = routeAnimation.drive(_bottomUpTween.chain(_fastOutSlowInTween)),
-        _opacityAnimation = routeAnimation.drive(_easeInTween);
-
-  // Fractional offset from 1/4 screen below the top to fully on screen.
-  static final Tween<Offset> _bottomUpTween = Tween<Offset>(
-    begin: const Offset(0.25,0),
-    end: Offset.zero,
-  );
-  static final Animatable<double> _fastOutSlowInTween = CurveTween(curve: Curves.fastOutSlowIn);
-  static final Animatable<double> _easeInTween = CurveTween(curve: Curves.easeIn);
-
-  final Animation<Offset> _positionAnimation;
-  final Animation<double> _opacityAnimation;
-  final Widget child;
-
-  @override
-  Widget build(BuildContext context) {
-    // return FadeTransition(
-    //   opacity: _opacityAnimation,
-    //   child: child,
-    // );
-
-    return SlideTransition(
-      position: _positionAnimation,
-      child: FadeTransition(
-        opacity: _opacityAnimation,
-        child: child,
-      ),
-    );
-  }
-}

lib/13/02__/main.dart

@@ -1,15 +0,0 @@
-import 'package:flutter/material.dart';
-import 'package:url_strategy/url_strategy.dart';
-
-import 'pages/app.dart';
-
-
-
-void main() {
-  setHashUrlStrategy();
-  runApp(const App());
-}
-
-
-
-

lib/13/02__/pages/app.dart

@@ -1,56 +0,0 @@
-import 'package:flutter/material.dart';
-import '../store/app_state.dart';
-import '../route/parser.dart';
-import '../route/route_state.dart';
-
-class App extends StatefulWidget {
-  const App({super.key});
-
-  @override
-  State<App> createState() => _AppState();
-}
-
-class _AppState extends State<App> {
-  late final RootRouterDelegate _delegate;
-  late final AppRouteParser _parser;
-  late final AppState _appState;
-  late final RouteState _routeState;
-
-  @override
-  void initState() {
-    super.initState();
-    _parser = AppRouteParser(initialRoute: '/color', allowPaths: [
-      '/color',
-      '/color/add',
-      '/color/detail/:colorHex',
-    ]);
-    _appState = AppState.initial();
-    _routeState = RouteState(_parser);
-    _delegate = RootRouterDelegate(_routeState);
-  }
-
-  @override
-  Widget build(BuildContext context) {
-    return AppStateScope(
-      notifier: _appState,
-      child: RouteStateScope(
-        notifier: _routeState,
-        child: MaterialApp.router(
-          routerDelegate: _delegate,
-          routeInformationParser: _parser,
-          theme: ThemeData(
-              useMaterial3: true,
-              appBarTheme: const AppBarTheme(
-                  elevation: 0,
-                  iconTheme: IconThemeData(color: Colors.black),
-                  titleTextStyle: TextStyle(
-                    color: Colors.black,
-                    fontSize: 18,
-                    fontWeight: FontWeight.bold,
-                  ))),
-          debugShowCheckedModeBanner: false,
-        ),
-      ),
-    );
-  }
-}

lib/13/02__/pages/color_add_page.dart

@@ -1,67 +0,0 @@
-import 'dart:math';
-
-import 'package:flutter/material.dart';
-
-class ColorAddPage extends StatefulWidget {
-  const ColorAddPage({super.key});
-
-  @override
-  State<ColorAddPage> createState() => _ColorAddPageState();
-}
-
-class _ColorAddPageState extends State<ColorAddPage> {
-  late Color _color;
-
-  @override
-  void initState() {
-    super.initState();
-    _color = randomColor;
-  }
-
-  @override
-  Widget build(BuildContext context) {
-    String text = '# ${_color.value.toRadixString(16)}';
-    return Scaffold(
-      appBar: AppBar(
-        title: Text('添加颜色'),
-        actions: [IconButton(onPressed: _selectColor, icon: Icon(Icons.check ))],
-      ),
-      body: Padding(
-        padding: const EdgeInsets.symmetric(horizontal: 16.0,vertical: 20),
-        child: Row(
-          children: [
-            Expanded(child: Text(text,style: TextStyle(color: _color,fontSize: 24,letterSpacing: 4),)),
-            Container(
-              margin: EdgeInsets.only(left: 10),
-              width: 40,
-              height: 40,
-              child: Icon(
-                Icons.sell_outlined,
-                color: Colors.white,
-              ),
-              decoration: BoxDecoration(
-                color: _color,
-                borderRadius: BorderRadius.circular(8),
-              ),
-            ),
-          ],
-        ),
-      ),
-    );
-  }
-
-  Random _random = Random();
-
-  Color get randomColor {
-    return Color.fromARGB(
-      255,
-      _random.nextInt(256),
-      _random.nextInt(256),
-      _random.nextInt(256),
-    );
-  }
-
-  void _selectColor() {
-    Navigator.of(context).pop(_color);
-  }
-}

lib/13/02__/pages/home_page.dart

@@ -1,43 +0,0 @@
-import 'package:flutter/material.dart';
-import '../store/app_state.dart';
-import '../route/route_state.dart';
-import 'color_add_page.dart';
-
-import '../../../common/components/colors_panel.dart';
-import '../../../common/pages/stl_color_page.dart';
-
-class HomePage extends StatefulWidget {
-  const HomePage({super.key});
-
-  @override
-  State<HomePage> createState() => _HomePageState();
-}
-
-class _HomePageState extends State<HomePage> {
-
-
-  @override
-  Widget build(BuildContext context) {
-    AppState state = AppStateScope.of(context);
-    return Scaffold(
-      appBar: AppBar(title:const Text('颜色主页')),
-      floatingActionButton: FloatingActionButton(
-        onPressed: _toAddPage,
-        child: const Icon(Icons.add),
-      ),
-      body: ColorsPanel(
-        colors: state.colors,
-        onSelect: _selectColor,
-      ),
-    );
-  }
-
-  void _selectColor(Color color){
-    String value = '#${color.value.toRadixString(16)}';
-    RouteStateScope.of(context).update('/color/detail/$value');
-  }
-
-  void _toAddPage() async {
-    RouteStateScope.of(context).update('/color/add');
-  }
-}

lib/13/02__/route/parsed_route.dart

@@ -1,49 +0,0 @@
-// Copyright 2021, the Flutter project authors. Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:collection/collection.dart';
-import 'package:quiver/core.dart';
-
-/// A route path that has been parsed by [TemplateRouteParser].
-class ParsedRoute {
-  /// The current path location without query parameters. (/book/123)
-  final String path;
-
-  /// The path template (/book/:id)
-  final String pathTemplate;
-
-  /// The path parameters ({id: 123})
-  final Map<String, String> parameters;
-
-  /// The query parameters ({search: abc})
-  final Map<String, String> queryParameters;
-
-  static const _mapEquality = MapEquality<String, String>();
-
-  ParsedRoute(
-      this.path, this.pathTemplate, this.parameters, this.queryParameters);
-
-  @override
-  bool operator ==(Object other) =>
-      other is ParsedRoute &&
-      other.pathTemplate == pathTemplate &&
-      other.path == path &&
-      _mapEquality.equals(parameters, other.parameters) &&
-      _mapEquality.equals(queryParameters, other.queryParameters);
-
-  @override
-  int get hashCode => hash4(
-        path,
-        pathTemplate,
-        _mapEquality.hash(parameters),
-        _mapEquality.hash(queryParameters),
-      );
-
-  @override
-  String toString() => '<ParsedRoute '
-      'template: $pathTemplate '
-      'path: $path '
-      'parameters: $parameters '
-      'query parameters: $queryParameters>';
-}

lib/13/02__/route/parser.dart

@@ -1,153 +0,0 @@
-import 'package:flutter/foundation.dart';
-import 'package:flutter/material.dart';
-import 'package:iroute/common/pages/stl_color_page.dart';
-import 'package:path_to_regexp/path_to_regexp.dart';
-import '../pages/home_page.dart';
-import '../pages/color_add_page.dart';
-import '../store/app_state.dart';
-import 'parsed_route.dart';
-import 'route_state.dart';
-
-class AppRouteParser extends RouteInformationParser<ParsedRoute> {
-  final List<String> allowPaths;
-  final ParsedRoute initialRoute;
-
-  AppRouteParser({
-    required this.allowPaths,
-    String initialRoute = '/',
-  }) : initialRoute = ParsedRoute(initialRoute, initialRoute, {}, {});
-
-  @override
-  Future<ParsedRoute> parseRouteInformation(
-      RouteInformation routeInformation) async {
-    print(
-        "=======parseRouteInformation:${routeInformation.uri.path}===================");
-
-    final uri = routeInformation.uri;
-    final path = uri.toString();
-    final queryParams = uri.queryParameters;
-
-    ParsedRoute parsedRoute = initialRoute;
-
-    for (var pathTemplate in allowPaths) {
-      final parameters = <String>[];
-      var pathRegExp = pathToRegExp(pathTemplate, parameters: parameters);
-      if (pathRegExp.hasMatch(path)) {
-        final match = pathRegExp.matchAsPrefix(path);
-        if (match == null) continue;
-        final params = extract(parameters, match);
-        parsedRoute = ParsedRoute(path, pathTemplate, params, queryParams);
-      }
-    }
-    return parsedRoute;
-  }
-
-  @override
-  RouteInformation? restoreRouteInformation(ParsedRoute configuration) {
-    print("=======restoreRouteInformation:${configuration}===================");
-
-    return RouteInformation(uri: Uri.parse(configuration.path));
-  }
-}
-
-class RootRouterDelegate extends RouterDelegate<ParsedRoute>
-    with ChangeNotifier, PopNavigatorRouterDelegateMixin {
-  final RouteState routeState;
-
-  RootRouterDelegate(this.routeState) {
-    routeState.addListener(notifyListeners);
-  }
-
-  @override
-  final GlobalKey<NavigatorState> navigatorKey = GlobalKey<NavigatorState>();
-
-  @override
-  ParsedRoute get currentConfiguration {
-    print("=======currentConfiguration:${routeState.route.path}===================");
-
-    return routeState.route;
-  }
-
-  @override
-  void dispose() {
-    routeState.removeListener(notifyListeners);
-    routeState.dispose();
-    super.dispose();
-  }
-
-  final _addColorKey = const ValueKey('addColor');
-  final _detailColorKey = const ValueKey('detailColor');
-
-  @override
-  Widget build(BuildContext context) {
-    final routeState = RouteStateScope.of(context);
-    List<Page> pages = [];
-    final String pathTemplate = routeState.route.pathTemplate;
-
-    pages.add(MaterialPage(child: HomePage()));
-
-    String? selectedColor;
-
-    if (pathTemplate == '/color/detail/:colorHex') {
-      selectedColor = routeState.route.parameters['colorHex'];
-    }
-
-    if (selectedColor != null) {
-      int value = int.parse(
-          selectedColor.substring(
-            1,
-          ),
-          radix: 16);
-      pages.add(MaterialPage(
-        key: _detailColorKey,
-          child: StlColorPage(
-        color: Color(value),
-      )));
-    }
-
-    bool isAddPage = pathTemplate == '/color/add';
-    if (isAddPage) {
-      pages.add(
-        MaterialPage(key: _addColorKey, child: ColorAddPage()),
-      );
-    }
-    print("===build====================");
-    return Navigator(
-      key: navigatorKey,
-      pages: pages,
-      onPopPage: (route, result) {
-        print(result);
-        if (route.settings is Page &&
-            (route.settings as Page).key == _addColorKey) {
-          if(result is Color){
-            AppStateScope.of(context).addColor(result);
-          }
-          routeState.update('/color');
-        }
-
-        if (route.settings is Page &&
-            (route.settings as Page).key == _detailColorKey) {
-          routeState.update('/color');
-        }
-        // appState.selectedBook = null;
-        // notifyListeners();
-        return route.didPop(result);
-      },
-    );
-  }
-
-  /// 格式: /a /b
-
-  @override
-  Future<void> setNewRoutePath(ParsedRoute configuration) async {
-    print("===setNewRoutePath===${configuration}=================");
-    routeState.route = configuration;
-    return;
-  }
-
-// @override
-// Future<void> setInitialRoutePath( configuration) async{
-//   _pages = [_pageMap['/']!];
-//   notifyListeners();
-// }
-}

lib/13/02__/route/route_state.dart

@@ -1,48 +0,0 @@
-// Copyright 2021, the Flutter project authors. Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:flutter/widgets.dart';
-
-import 'parsed_route.dart';
-import 'parser.dart';
-
-/// The current route state. To change the current route, call obtain the state
-/// using `RouteStateScope.of(context)` and call `go()`:
-///
-/// ```
-/// RouteStateScope.of(context).go('/book/2');
-/// ```
-class RouteState extends ChangeNotifier {
-  final AppRouteParser _parser;
-  ParsedRoute _route;
-
-  RouteState(this._parser) : _route = _parser.initialRoute;
-
-  ParsedRoute get route => _route;
-
-  set route(ParsedRoute route) {
-    // Don't notify listeners if the path hasn't changed.
-    if (_route == route) return;
-
-    _route = route;
-    notifyListeners();
-  }
-
-  Future<void> update(String route) async {
-    this.route = await _parser
-        .parseRouteInformation(RouteInformation(uri: Uri.parse(route)));
-  }
-}
-
-/// Provides the current [RouteState] to descendant widgets in the tree.
-class RouteStateScope extends InheritedNotifier<RouteState> {
-  const RouteStateScope({
-    required super.notifier,
-    required super.child,
-    super.key,
-  });
-
-  static RouteState of(BuildContext context) =>
-      context.dependOnInheritedWidgetOfExactType<RouteStateScope>()!.notifier!;
-}

lib/13/02__/store/app_state.dart

@@ -1,32 +0,0 @@
-
-import 'package:flutter/cupertino.dart';
-import 'package:flutter/material.dart';
-
-class AppState extends ChangeNotifier{
-  final List<Color> colors;
-
-  AppState({required this.colors,});
-
-  AppState.initial():colors=[
-    Colors.red, Colors.black, Colors.blue, Colors.green, Colors.orange,
-    Colors.pink, Colors.purple, Colors.indigo, Colors.amber, Colors.cyan,
-    Colors.redAccent, Colors.grey, Colors.blueAccent, Colors.greenAccent, Colors.orangeAccent,
-    Colors.pinkAccent, Colors.purpleAccent, Colors.indigoAccent, Colors.amberAccent, Colors.cyanAccent,
-  ];
-
-  void addColor(Color color){
-    colors.add(color);
-    notifyListeners();
-  }
-
-}
-
-/// Provides the current [RouteState] to descendant widgets in the tree.
-class AppStateScope extends InheritedNotifier<AppState> {
-  const AppStateScope({super.key, required super.child,  required super.notifier,});
-
-
-
-  static AppState of(BuildContext context) =>
-      context.dependOnInheritedWidgetOfExactType<AppStateScope>()!.notifier!;
-}

lib/13/03_/main.dart

@@ -1,13 +0,0 @@
-import 'package:flutter/material.dart';
-
-import 'pages/app/app.dart';
-
-
-
-void main() {
-  runApp(const App());
-}
-
-
-
-

lib/13/03_/menus.dart

@@ -1,76 +0,0 @@
-import 'package:toly_menu/toly_menu.dart';
-
-List<MenuData> menus = [
-  MenuData(path: '/dashboard', label: '总览面板', children: [
-    MenuData(path: '/dashboard/data_analyse', label: '数据分析', deep: 1),
-    MenuData(path: '/dashboard/work_board', label: '工作台', deep: 1, children: [
-      MenuData(path: '/dashboard/work_board/a', label: '第一工作区', deep: 2),
-      MenuData(path: '/dashboard/work_board/b', label: '第二工作区', deep: 2),
-      MenuData(path: '/dashboard/work_board/c', label: '第三工作区', deep: 2),
-    ]),
-  ]),
-  MenuData(path: '/manager', label: '系统管理', children: [
-    MenuData(path: '/manager/account', label: '账号管理', deep: 1),
-    MenuData(path: '/manager/role', label: '角色管理', deep: 1),
-    MenuData(path: '/manager/menu', label: '菜单管理', deep: 1),
-  ]),
-  MenuData(path: '/knowledge', label: '知识库管理', children: [
-    MenuData(path: '/knowledge/a', label: '语文知识', deep: 1, children: [
-      MenuData(
-        path: '/knowledge/a/1',
-        label: '诗词歌赋',
-        deep: 2,
-      ),
-      MenuData(
-        path: '/knowledge/a/2',
-        label: '人物故事',
-        deep: 2,
-      ),
-      MenuData(
-        path: '/knowledge/a/3',
-        label: '名著推荐',
-        deep: 2,
-      )
-    ]),
-    MenuData(
-        path: '/knowledge/b',
-        label: '数学知识',
-        children: [
-          MenuData(
-            path: '/knowledge/b/1',
-            label: '人物故事',
-            deep: 2,
-          ),
-          MenuData(
-            path: '/knowledge/b/2',
-            label: '数学定理',
-            deep: 2,
-          ),
-          MenuData(
-            path: '/knowledge/b/3',
-            label: '几何知识',
-            deep: 2,
-          ),
-          MenuData(
-            path: '/knowledge/b/4',
-            label: '代数知识',
-            deep: 2,
-          )
-        ],
-        deep: 1),
-    MenuData(
-      path: '/knowledge/c',
-      label: '英语知识',
-      deep: 1,
-    ),
-  ]),
-  MenuData(path: '/widgets', label: '组件集录', children: [
-    MenuData(path: '/widgets/stateless', label: '无状态组件', deep: 1),
-    MenuData(path: '/widgets/stateful', label: '有状态组件', deep: 1),
-    MenuData(path: '/widgets/single_child', label: '单子渲染组件', deep: 1),
-    MenuData(path: '/widgets/mutli_child', label: '多子渲染组件', deep: 1),
-    MenuData(path: '/widgets/sliver', label: '滑片组件', deep: 1),
-    MenuData(path: '/widgets/proxy', label: '代理组件', deep: 1),
-    MenuData(path: '/widgets/other', label: '其他组件', deep: 1),
-  ])
-];

lib/13/03_/pages/app/app.dart

@@ -1,89 +0,0 @@
-import 'package:flutter/material.dart';
-import 'package:toly_menu/toly_menu.dart';
-
-import '../../menus.dart';
-
-class App extends StatelessWidget {
-  const App({super.key});
-
-  @override
-  Widget build(BuildContext context) {
-    return MaterialApp(
-        theme: ThemeData(
-            appBarTheme: const AppBarTheme(
-                elevation: 0,
-                iconTheme: IconThemeData(color: Colors.black),
-                titleTextStyle: TextStyle(
-                  color: Colors.black,
-                  fontSize: 18,
-                  fontWeight: FontWeight.bold,
-                ))),
-        debugShowCheckedModeBanner: false,
-        home: AppLayout());
-  }
-}
-
-class AppLayout extends StatelessWidget {
-  const AppLayout({super.key});
-
-  @override
-  Widget build(BuildContext context) {
-    return  Scaffold(
-      body: Row(
-        children: [
-          SizedBox(
-            width: 210,
-            child: MenuPanel(),
-          ),
-          // Container()
-        ],
-      ),
-      // appBar: AppToolBar(),
-      // body: AppNavigation(),
-    );
-  }
-}
-
-class MenuPanel extends StatefulWidget {
-  const MenuPanel({super.key});
-
-  @override
-  State<MenuPanel> createState() => _MenuPanelState();
-}
-
-class _MenuPanelState extends State<MenuPanel> {
-  MenuState state = MenuState(expandMenus: ['/dashboard'], activeMenu: '/dashboard/data_analyse', items: menus);
-
-  @override
-  Widget build(BuildContext context) {
-    return TolyMenu(state: state, onSelect: _onSelect);
-  }
-
-  void _onSelect(MenuData menu) {
-    if(menu.isLeaf){
-      state = state.copyWith(activeMenu: menu.path);
-    }else{
-      List<String> menus = [];
-      String path = menu.path.substring(1);
-      List<String> parts = path.split('/');
-
-      if(parts.isNotEmpty){
-        String path = '';
-        for (String part in parts) {
-          path+='/$part';
-          menus.add(path);
-        }
-      }
-
-      if(state.expandMenus.contains(menu.path)){
-        menus.remove(menu.path);
-      }
-
-      state = state.copyWith(expandMenus: menus);
-
-    }
-    setState(() {
-
-    });
-  }
-}

lib/13/03_/pages/app/root_content.dart

@@ -1,43 +0,0 @@
-import 'package:flutter/material.dart';
-
-class RootContent extends StatelessWidget {
-  const RootContent({super.key});
-
-  @override
-  Widget build(BuildContext context) {
-    return Router(routerDelegate: RootContentDelegate());
-  }
-}
-
-class RootContentDelegate extends RouterDelegate with ChangeNotifier,PopNavigatorRouterDelegateMixin{
-
-
-  @override
-  final GlobalKey<NavigatorState> navigatorKey = GlobalKey<NavigatorState>();
-
-
-  @override
-  Widget build(BuildContext context) {
-    return Navigator(
-      key: navigatorKey,
-      pages: [
-
-      ],
-      onPopPage: (route, result) {
-        // appState.selectedBook = null;
-        // notifyListeners();
-        return route.didPop(result);
-      },
-    );
-  }
-
-
-  @override
-  Future<void> setNewRoutePath(configuration) {
-    // TODO: implement setNewRoutePath
-    throw UnimplementedError();
-  }
-
-
-
-}

lib/13/04/app/navigation/app_router_delegate.dart

@@ -1,208 +0,0 @@
-import 'dart:async';
-import 'dart:io';
-
-import 'package:flutter/material.dart';
-import 'package:iroute/13/04/app/navigation/router/iroute.dart';
-import 'package:iroute/common/pages/stl_color_page.dart';
-
-import '../../pages/color/color_page.dart';
-import '../../pages/empty/empty_page.dart';
-import '../../pages/settings/settings_page.dart';
-import '../../pages/counter/counter_page.dart';
-import '../../pages/user/user_page.dart';
-import '../../transition/fade_transition_page.dart';
-import '../../pages/color/color_add_page.dart';
-
-const List<String> kDestinationsPaths = [
-  '/color',
-  '/counter',
-  '/user',
-  '/settings',
-];
-
-AppRouterDelegate router = AppRouterDelegate();
-
-class AppRouterDelegate extends RouterDelegate<Object> with ChangeNotifier {
-  String _path = '/color';
-
-  String get path => _path;
-
-  int? get activeIndex {
-    if(path.startsWith('/color')) return 0;
-    if(path.startsWith('/counter')) return 1;
-    if(path.startsWith('/user')) return 2;
-    if(path.startsWith('/settings')) return 3;
-    return null;
-  }
-
-  final Map<String,Completer<dynamic>> _completerMap = {};
-
-  Completer<dynamic>? completer;
-
-  Future<dynamic> changePathForResult(String value) async{
-    Completer<dynamic> completer = Completer();
-    _completerMap[value] = completer;
-    path = value;
-    return completer.future;
-  }
-
-  set path(String value) {
-    if (_path == value) return;
-    _path = value;
-    notifyListeners();
-  }
-
-  // IRoute? parserPath(String path){
-  //
-  //   List<String> parts = path.split('/');
-  //   String lever1 = '/${parts[1]}';
-  //   List<IRoute> iRoutes = kDestinationsIRoutes.where((e) => e.path == lever1).toList();
-  //
-  //   int counter = 2;
-  //
-  //   IRoute? result;
-  //   String check = lever1;
-  //   for(int i = 0;i<iRoutes.length;i++){
-  //     check = check +"/" + parts[counter];
-  //     String path = iRoutes[i].path;
-  //     if(path == check){
-  //       result = iRoutes[i];
-  //       break;
-  //     }
-  //     // String path =
-  //     // result.children.add(IRoute(path: parts[i]);
-  //   }
-  // }
-
-  @override
-  Widget build(BuildContext context) {
-    return Navigator(
-      onPopPage: _onPopPage,
-      pages: _buildPageByPath(path),
-    );
-  }
-
-  List<Page> _buildPageByPath(String path) {
-    if(path.startsWith('/color')){
-      return buildColorPages(path);
-    }
-
-    Widget? child;
-    if (path == kDestinationsPaths[1]) {
-      child = const CounterPage();
-    }
-    if (path == kDestinationsPaths[2]) {
-      child = const UserPage();
-    }
-    if (path == kDestinationsPaths[3]) {
-      child = const SettingPage();
-    }
-    return [
-      FadeTransitionPage(
-        // key: ValueKey(path),
-        child: child ?? const EmptyPage(),
-      )
-    ];
-  }
-
-  List<Page> buildColorPages(String path){
-    List<Page> result = [];
-    Uri uri = Uri.parse(path);
-    for (String segment in uri.pathSegments) {
-      if(segment == 'color'){
-        result.add( const FadeTransitionPage(
-          key: ValueKey('/color'),
-          child:ColorPage(),
-        ));
-      }
-      if(segment =='detail'){
-        final Map<String, String> queryParams = uri.queryParameters;
-        String? selectedColor = queryParams['color'];
-        if (selectedColor != null) {
-          Color color = Color(int.parse(selectedColor, radix: 16));
-          result.add( FadeTransitionPage(
-            key: const ValueKey('/color/detail'),
-            child:StlColorPage(color: color),
-          ));
-        }
-      }
-      if(segment == 'add'){
-        result.add( const FadeTransitionPage(
-          key: ValueKey('/color/add'),
-          child:ColorAddPage(),
-        ));
-      }
-
-    }
-    return result;
-  }
-
-  @override
-  Future<bool> popRoute() async {
-    print('=======popRoute=========');
-    return true;
-  }
-
-  bool _onPopPage(Route route, result) {
-    if(_completerMap.containsKey(path)){
-      _completerMap[path]?.complete(result);
-      _completerMap.remove(path);
-    }
-
-    path = backPath(path);
-    return route.didPop(result);
-  }
-
-  String backPath(String path){
-    Uri uri = Uri.parse(path);
-    if(uri.pathSegments.length==1) return path;
-    List<String> parts = List.of(uri.pathSegments)..removeLast();
-    return '/${parts.join('/')}';
-  }
-
-  @override
-  Future<void> setNewRoutePath(configuration) async {}
-}
-
-
-
-// class AppRouterDelegate extends RouterDelegate<String> with ChangeNotifier, PopNavigatorRouterDelegateMixin {
-//
-//   List<String> _value = ['/'];
-//
-//
-//   List<String> get value => _value;
-//
-//   set value(List<String> value){
-//     _value = value;
-//     notifyListeners();
-//   }
-//
-//   @override
-//   Widget build(BuildContext context) {
-//     return Navigator(
-//       onPopPage: _onPopPage,
-//       pages: _value.map((e) => _pageMap[e]!).toList(),
-//     );
-//   }
-//
-//   final Map<String, Page> _pageMap = const {
-//     '/': MaterialPage(child: HomePage()),
-//     'a': MaterialPage(child: PageA()),
-//     'b': MaterialPage(child: PageB()),
-//     'c': MaterialPage(child: PageC()),
-//   };
-//
-//   bool _onPopPage(Route route, result) {
-//     _value = List.of(_value)..removeLast();
-//     notifyListeners();
-//     return route.didPop(result);
-//   }
-//
-//   @override
-//   GlobalKey<NavigatorState>? navigatorKey = GlobalKey<NavigatorState>();
-//
-//   @override
-//   Future<void> setNewRoutePath(String configuration) async{
-//   }
-// }

lib/13/04/app/unit_app.dart

@@ -1,38 +0,0 @@
-import 'package:flutter/material.dart';
-import 'navigation/app_router_delegate.dart';
-import 'navigation/views/app_navigation_rail.dart';
-
-class UnitApp extends StatelessWidget {
-  const UnitApp({super.key});
-
-  @override
-  Widget build(BuildContext context) {
-
-    return MaterialApp(
-        theme: ThemeData(
-            appBarTheme: const AppBarTheme(
-                elevation: 0,
-                iconTheme: IconThemeData(color: Colors.black),
-                titleTextStyle: TextStyle(
-                  color: Colors.black,
-                  fontSize: 18,
-                  fontWeight: FontWeight.bold,
-                ))),
-        debugShowCheckedModeBanner: false,
-        home: Scaffold(
-          body: Row(
-            children: [
-              const AppNavigationRail(),
-              Expanded(
-                child: Router(
-                  routerDelegate: router,
-                  backButtonDispatcher: RootBackButtonDispatcher(),
-                ),
-              ),
-            ],
-          ),
-        ));
-  }
-}
-
-

lib/13/go/async_redirection.dart

@@ -1,244 +0,0 @@
-// Copyright 2013 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-import 'dart:async';
-
-import 'package:flutter/material.dart';
-import 'package:go_router/go_router.dart';
-
-// This scenario demonstrates how to use redirect to handle a asynchronous
-// sign-in flow.
-//
-// The `StreamAuth` is a mock of google_sign_in. This example wraps it with an
-// InheritedNotifier, StreamAuthScope, and relies on
-// `dependOnInheritedWidgetOfExactType` to create a dependency between the
-// notifier and go_router's parsing pipeline. When StreamAuth broadcasts new
-// event, the dependency will cause the go_router to reparse the current url
-// which will also trigger the redirect.
-
-void main() => runApp(StreamAuthScope(child: App()));
-
-/// The main app.
-class App extends StatelessWidget {
-  /// Creates an [App].
-  App({super.key});
-
-  /// The title of the app.
-  static const String title = 'GoRouter Example: Redirection';
-
-  // add the login info into the tree as app state that can change over time
-  @override
-  Widget build(BuildContext context) => MaterialApp.router(
-        routerConfig: _router,
-        title: title,
-        debugShowCheckedModeBanner: false,
-      );
-
-  late final GoRouter _router = GoRouter(
-    routes: <GoRoute>[
-      GoRoute(
-        path: '/',
-        builder: (BuildContext context, GoRouterState state) =>
-            const HomeScreen(),
-      ),
-      GoRoute(
-        path: '/login',
-        builder: (BuildContext context, GoRouterState state) =>
-            const LoginScreen(),
-      ),
-    ],
-
-    // redirect to the login page if the user is not logged in
-    redirect: (BuildContext context, GoRouterState state) async {
-      // Using `of` method creates a dependency of StreamAuthScope. It will
-      // cause go_router to reparse current route if StreamAuth has new sign-in
-      // information.
-      final bool loggedIn = await StreamAuthScope.of(context).isSignedIn();
-      final bool loggingIn = state.matchedLocation == '/login';
-      if (!loggedIn) {
-        return '/login';
-      }
-
-      // if the user is logged in but still on the login page, send them to
-      // the home page
-      if (loggingIn) {
-        return '/';
-      }
-
-      // no need to redirect at all
-      return null;
-    },
-  );
-}
-
-/// The login screen.
-class LoginScreen extends StatefulWidget {
-  /// Creates a [LoginScreen].
-  const LoginScreen({super.key});
-
-  @override
-  State<LoginScreen> createState() => _LoginScreenState();
-}
-
-class _LoginScreenState extends State<LoginScreen>
-    with TickerProviderStateMixin {
-  bool loggingIn = false;
-  late final AnimationController controller;
-
-  @override
-  void initState() {
-    super.initState();
-    controller = AnimationController(
-      vsync: this,
-      duration: const Duration(seconds: 1),
-    )..addListener(() {
-        setState(() {});
-      });
-    controller.repeat();
-  }
-
-  @override
-  void dispose() {
-    controller.dispose();
-    super.dispose();
-  }
-
-  @override
-  Widget build(BuildContext context) => Scaffold(
-        appBar: AppBar(title: const Text(App.title)),
-        body: Center(
-          child: Column(
-            mainAxisAlignment: MainAxisAlignment.center,
-            children: <Widget>[
-              if (loggingIn) CircularProgressIndicator(value: controller.value),
-              if (!loggingIn)
-                ElevatedButton(
-                  onPressed: () {
-                    StreamAuthScope.of(context).signIn('test-user');
-                    setState(() {
-                      loggingIn = true;
-                    });
-                  },
-                  child: const Text('Login'),
-                ),
-            ],
-          ),
-        ),
-      );
-}
-
-/// The home screen.
-class HomeScreen extends StatelessWidget {
-  /// Creates a [HomeScreen].
-  const HomeScreen({super.key});
-
-  @override
-  Widget build(BuildContext context) {
-    final StreamAuth info = StreamAuthScope.of(context);
-
-    return Scaffold(
-      appBar: AppBar(
-        title: const Text(App.title),
-        actions: <Widget>[
-          IconButton(
-            onPressed: () => info.signOut(),
-            tooltip: 'Logout: ${info.currentUser}',
-            icon: const Icon(Icons.logout),
-          )
-        ],
-      ),
-      body: const Center(
-        child: Text('HomeScreen'),
-      ),
-    );
-  }
-}
-
-/// A scope that provides [StreamAuth] for the subtree.
-class StreamAuthScope extends InheritedNotifier<StreamAuthNotifier> {
-  /// Creates a [StreamAuthScope] sign in scope.
-  StreamAuthScope({
-    super.key,
-    required super.child,
-  }) : super(
-          notifier: StreamAuthNotifier(),
-        );
-
-  /// Gets the [StreamAuth].
-  static StreamAuth of(BuildContext context) {
-    return context
-        .dependOnInheritedWidgetOfExactType<StreamAuthScope>()!
-        .notifier!
-        .streamAuth;
-  }
-}
-
-/// A class that converts [StreamAuth] into a [ChangeNotifier].
-class StreamAuthNotifier extends ChangeNotifier {
-  /// Creates a [StreamAuthNotifier].
-  StreamAuthNotifier() : streamAuth = StreamAuth() {
-    streamAuth.onCurrentUserChanged.listen((String? string) {
-      notifyListeners();
-    });
-  }
-
-  /// The stream auth client.
-  final StreamAuth streamAuth;
-}
-
-/// An asynchronous log in services mock with stream similar to google_sign_in.
-///
-/// This class adds an artificial delay of 3 second when logging in an user, and
-/// will automatically clear the login session after [refreshInterval].
-class StreamAuth {
-  /// Creates an [StreamAuth] that clear the current user session in
-  /// [refeshInterval] second.
-  StreamAuth({this.refreshInterval = 20})
-      : _userStreamController = StreamController<String?>.broadcast() {
-    _userStreamController.stream.listen((String? currentUser) {
-      _currentUser = currentUser;
-    });
-  }
-
-  /// The current user.
-  String? get currentUser => _currentUser;
-  String? _currentUser;
-
-  /// Checks whether current user is signed in with an artificial delay to mimic
-  /// async operation.
-  Future<bool> isSignedIn() async {
-    await Future<void>.delayed(const Duration(seconds: 1));
-    return _currentUser != null;
-  }
-
-  /// A stream that notifies when current user has changed.
-  Stream<String?> get onCurrentUserChanged => _userStreamController.stream;
-  final StreamController<String?> _userStreamController;
-
-  /// The interval that automatically signs out the user.
-  final int refreshInterval;
-
-  Timer? _timer;
-  Timer _createRefreshTimer() {
-    return Timer(Duration(seconds: refreshInterval), () {
-      _userStreamController.add(null);
-      _timer = null;
-    });
-  }
-
-  /// Signs in a user with an artificial delay to mimic async operation.
-  Future<void> signIn(String newUserName) async {
-    await Future<void>.delayed(const Duration(seconds: 3));
-    _userStreamController.add(newUserName);
-    _timer?.cancel();
-    _timer = _createRefreshTimer();
-  }
-
-  /// Signs out the current user.
-  Future<void> signOut() async {
-    _timer?.cancel();
-    _timer = null;
-    _userStreamController.add(null);
-  }
-}

lib/13/go/books/main.dart

@@ -1,171 +0,0 @@
-// Copyright 2013 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-import 'package:collection/collection.dart';
-import 'package:flutter/material.dart';
-import 'package:go_router/go_router.dart';
-
-import 'src/auth.dart';
-import 'src/data/author.dart';
-import 'src/data/book.dart';
-import 'src/data/library.dart';
-import 'src/screens/author_details.dart';
-import 'src/screens/authors.dart';
-import 'src/screens/book_details.dart';
-import 'src/screens/books.dart';
-import 'src/screens/scaffold.dart';
-import 'src/screens/settings.dart';
-import 'src/screens/sign_in.dart';
-
-void main() => runApp(Bookstore());
-
-/// The book store view.
-class Bookstore extends StatelessWidget {
-  /// Creates a [Bookstore].
-  Bookstore({super.key});
-
-  final ValueKey<String> _scaffoldKey = const ValueKey<String>('App scaffold');
-
-  @override
-  Widget build(BuildContext context) => BookstoreAuthScope(
-        notifier: _auth,
-        child: MaterialApp.router(
-          routerConfig: _router,
-        ),
-      );
-
-  final BookstoreAuth _auth = BookstoreAuth();
-
-  late final GoRouter _router = GoRouter(
-    routes: <GoRoute>[
-      GoRoute(
-        path: '/',
-        redirect: (_, __) => '/books',
-      ),
-      GoRoute(
-        path: '/signin',
-        pageBuilder: (BuildContext context, GoRouterState state) =>
-            FadeTransitionPage(
-          key: state.pageKey,
-          child: SignInScreen(
-            onSignIn: (Credentials credentials) {
-              BookstoreAuthScope.of(context)
-                  .signIn(credentials.username, credentials.password);
-            },
-          ),
-        ),
-      ),
-      GoRoute(
-        path: '/books',
-        redirect: (_, __) => '/books/popular',
-      ),
-      GoRoute(
-        path: '/book/:bookId',
-        redirect: (BuildContext context, GoRouterState state) =>
-            '/books/all/${state.pathParameters['bookId']}',
-      ),
-      GoRoute(
-        path: '/books/:kind(new|all|popular)',
-        pageBuilder: (BuildContext context, GoRouterState state) =>
-            FadeTransitionPage(
-          key: _scaffoldKey,
-          child: BookstoreScaffold(
-            selectedTab: ScaffoldTab.books,
-            child: BooksScreen(state.pathParameters['kind']!),
-          ),
-        ),
-        routes: <GoRoute>[
-          GoRoute(
-            path: ':bookId',
-            builder: (BuildContext context, GoRouterState state) {
-              final String bookId = state.pathParameters['bookId']!;
-              final Book? selectedBook = libraryInstance.allBooks
-                  .firstWhereOrNull((Book b) => b.id.toString() == bookId);
-
-              return BookDetailsScreen(book: selectedBook);
-            },
-          ),
-        ],
-      ),
-      GoRoute(
-        path: '/author/:authorId',
-        redirect: (BuildContext context, GoRouterState state) =>
-            '/authors/${state.pathParameters['authorId']}',
-      ),
-      GoRoute(
-        path: '/authors',
-        pageBuilder: (BuildContext context, GoRouterState state) =>
-            FadeTransitionPage(
-          key: _scaffoldKey,
-          child: const BookstoreScaffold(
-            selectedTab: ScaffoldTab.authors,
-            child: AuthorsScreen(),
-          ),
-        ),
-        routes: <GoRoute>[
-          GoRoute(
-            path: ':authorId',
-            builder: (BuildContext context, GoRouterState state) {
-              final int authorId = int.parse(state.pathParameters['authorId']!);
-              final Author? selectedAuthor = libraryInstance.allAuthors
-                  .firstWhereOrNull((Author a) => a.id == authorId);
-
-              return AuthorDetailsScreen(author: selectedAuthor);
-            },
-          ),
-        ],
-      ),
-      GoRoute(
-        path: '/settings',
-        pageBuilder: (BuildContext context, GoRouterState state) =>
-            FadeTransitionPage(
-          key: _scaffoldKey,
-          child: const BookstoreScaffold(
-            selectedTab: ScaffoldTab.settings,
-            child: SettingsScreen(),
-          ),
-        ),
-      ),
-    ],
-    redirect: _guard,
-    refreshListenable: _auth,
-    debugLogDiagnostics: true,
-  );
-
-  String? _guard(BuildContext context, GoRouterState state) {
-    final bool signedIn = _auth.signedIn;
-    final bool signingIn = state.matchedLocation == '/signin';
-
-    // Go to /signin if the user is not signed in
-    if (!signedIn && !signingIn) {
-      return '/signin';
-    }
-    // Go to /books if the user is signed in and tries to go to /signin.
-    else if (signedIn && signingIn) {
-      return '/books';
-    }
-
-    // no redirect
-    return null;
-  }
-}
-
-/// A page that fades in an out.
-class FadeTransitionPage extends CustomTransitionPage<void> {
-  /// Creates a [FadeTransitionPage].
-  FadeTransitionPage({
-    required LocalKey super.key,
-    required super.child,
-  }) : super(
-            transitionsBuilder: (BuildContext context,
-                    Animation<double> animation,
-                    Animation<double> secondaryAnimation,
-                    Widget child) =>
-                FadeTransition(
-                  opacity: animation.drive(_curveTween),
-                  child: child,
-                ));
-
-  static final CurveTween _curveTween = CurveTween(curve: Curves.easeIn);
-}

lib/13/go/books/src/auth.dart

@@ -1,46 +0,0 @@
-// Copyright 2013 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-import 'package:flutter/widgets.dart';
-
-/// A mock authentication service.
-class BookstoreAuth extends ChangeNotifier {
-  bool _signedIn = false;
-
-  /// Whether user has signed in.
-  bool get signedIn => _signedIn;
-
-  /// Signs out the current user.
-  Future<void> signOut() async {
-    await Future<void>.delayed(const Duration(milliseconds: 200));
-    // Sign out.
-    _signedIn = false;
-    notifyListeners();
-  }
-
-  /// Signs in a user.
-  Future<bool> signIn(String username, String password) async {
-    await Future<void>.delayed(const Duration(milliseconds: 200));
-
-    // Sign in. Allow any password.
-    _signedIn = true;
-    notifyListeners();
-    return _signedIn;
-  }
-}
-
-/// An inherited notifier to host [BookstoreAuth] for the subtree.
-class BookstoreAuthScope extends InheritedNotifier<BookstoreAuth> {
-  /// Creates a [BookstoreAuthScope].
-  const BookstoreAuthScope({
-    required BookstoreAuth super.notifier,
-    required super.child,
-    super.key,
-  });
-
-  /// Gets the [BookstoreAuth] above the context.
-  static BookstoreAuth of(BuildContext context) => context
-      .dependOnInheritedWidgetOfExactType<BookstoreAuthScope>()!
-      .notifier!;
-}

lib/13/go/books/src/data.dart

@@ -1,7 +0,0 @@
-// Copyright 2013 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-export 'data/author.dart';
-export 'data/book.dart';
-export 'data/library.dart';

lib/13/go/books/src/data/author.dart

@@ -1,23 +0,0 @@
-// Copyright 2013 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-import 'book.dart';
-
-/// Author data class.
-class Author {
-  /// Creates an author data object.
-  Author({
-    required this.id,
-    required this.name,
-  });
-
-  /// The id of the author.
-  final int id;
-
-  /// The name of the author.
-  final String name;
-
-  /// The books of the author.
-  final List<Book> books = <Book>[];
-}

lib/13/go/books/src/data/book.dart

@@ -1,32 +0,0 @@
-// Copyright 2013 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-import 'author.dart';
-
-/// Book data class.
-class Book {
-  /// Creates a book data object.
-  Book({
-    required this.id,
-    required this.title,
-    required this.isPopular,
-    required this.isNew,
-    required this.author,
-  });
-
-  /// The id of the book.
-  final int id;
-
-  /// The title of the book.
-  final String title;
-
-  /// The author of the book.
-  final Author author;
-
-  /// Whether the book is popular.
-  final bool isPopular;
-
-  /// Whether the book is new.
-  final bool isNew;
-}

lib/13/go/books/src/data/library.dart

@@ -1,76 +0,0 @@
-// Copyright 2013 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-import 'author.dart';
-import 'book.dart';
-
-/// Library data mock.
-final Library libraryInstance = Library()
-  ..addBook(
-      title: 'Left Hand of Darkness',
-      authorName: 'Ursula K. Le Guin',
-      isPopular: true,
-      isNew: true)
-  ..addBook(
-      title: 'Too Like the Lightning',
-      authorName: 'Ada Palmer',
-      isPopular: false,
-      isNew: true)
-  ..addBook(
-      title: 'Kindred',
-      authorName: 'Octavia E. Butler',
-      isPopular: true,
-      isNew: false)
-  ..addBook(
-      title: 'The Lathe of Heaven',
-      authorName: 'Ursula K. Le Guin',
-      isPopular: false,
-      isNew: false);
-
-/// A library that contains books and authors.
-class Library {
-  /// The books in the library.
-  final List<Book> allBooks = <Book>[];
-
-  /// The authors in the library.
-  final List<Author> allAuthors = <Author>[];
-
-  /// Adds a book into the library.
-  void addBook({
-    required String title,
-    required String authorName,
-    required bool isPopular,
-    required bool isNew,
-  }) {
-    final Author author = allAuthors.firstWhere(
-      (Author author) => author.name == authorName,
-      orElse: () {
-        final Author value = Author(id: allAuthors.length, name: authorName);
-        allAuthors.add(value);
-        return value;
-      },
-    );
-
-    final Book book = Book(
-      id: allBooks.length,
-      title: title,
-      isPopular: isPopular,
-      isNew: isNew,
-      author: author,
-    );
-
-    author.books.add(book);
-    allBooks.add(book);
-  }
-
-  /// The list of popular books in the library.
-  List<Book> get popularBooks => <Book>[
-        ...allBooks.where((Book book) => book.isPopular),
-      ];
-
-  /// The list of new books in the library.
-  List<Book> get newBooks => <Book>[
-        ...allBooks.where((Book book) => book.isNew),
-      ];
-}

lib/13/go/books/src/screens/author_details.dart

@@ -1,49 +0,0 @@
-// Copyright 2013 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-import 'package:flutter/material.dart';
-import 'package:go_router/go_router.dart';
-
-import '../data.dart';
-import '../widgets/book_list.dart';
-
-/// The author detail screen.
-class AuthorDetailsScreen extends StatelessWidget {
-  /// Creates an author detail screen.
-  const AuthorDetailsScreen({
-    required this.author,
-    super.key,
-  });
-
-  /// The author to be displayed.
-  final Author? author;
-
-  @override
-  Widget build(BuildContext context) {
-    if (author == null) {
-      return const Scaffold(
-        body: Center(
-          child: Text('No author found.'),
-        ),
-      );
-    }
-    return Scaffold(
-      appBar: AppBar(
-        title: Text(author!.name),
-      ),
-      body: Center(
-        child: Column(
-          children: <Widget>[
-            Expanded(
-              child: BookList(
-                books: author!.books,
-                onTap: (Book book) => context.go('/book/${book.id}'),
-              ),
-            ),
-          ],
-        ),
-      ),
-    );
-  }
-}

lib/13/go/books/src/screens/authors.dart

@@ -1,31 +0,0 @@
-// Copyright 2013 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-import 'package:flutter/material.dart';
-import 'package:go_router/go_router.dart';
-
-import '../data.dart';
-import '../widgets/author_list.dart';
-
-/// A screen that displays a list of authors.
-class AuthorsScreen extends StatelessWidget {
-  /// Creates an [AuthorsScreen].
-  const AuthorsScreen({super.key});
-
-  /// The title of the screen.
-  static const String title = 'Authors';
-
-  @override
-  Widget build(BuildContext context) => Scaffold(
-        appBar: AppBar(
-          title: const Text(title),
-        ),
-        body: AuthorList(
-          authors: libraryInstance.allAuthors,
-          onTap: (Author author) {
-            context.go('/author/${author.id}');
-          },
-        ),
-      );
-}

lib/13/go/books/src/screens/book_details.dart

@@ -1,77 +0,0 @@
-// Copyright 2013 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-import 'package:flutter/material.dart';
-import 'package:go_router/go_router.dart';
-import 'package:url_launcher/link.dart';
-
-import '../data.dart';
-import 'author_details.dart';
-
-/// A screen to display book details.
-class BookDetailsScreen extends StatelessWidget {
-  /// Creates a [BookDetailsScreen].
-  const BookDetailsScreen({
-    super.key,
-    this.book,
-  });
-
-  /// The book to be displayed.
-  final Book? book;
-
-  @override
-  Widget build(BuildContext context) {
-    if (book == null) {
-      return const Scaffold(
-        body: Center(
-          child: Text('No book found.'),
-        ),
-      );
-    }
-    return Scaffold(
-      appBar: AppBar(
-        title: Text(book!.title),
-      ),
-      body: Center(
-        child: Column(
-          children: <Widget>[
-            Text(
-              book!.title,
-              style: Theme.of(context).textTheme.headlineMedium,
-            ),
-            Text(
-              book!.author.name,
-              style: Theme.of(context).textTheme.titleMedium,
-            ),
-            TextButton(
-              onPressed: () {
-                Navigator.of(context).push<void>(
-                  MaterialPageRoute<void>(
-                    builder: (BuildContext context) =>
-                        AuthorDetailsScreen(author: book!.author),
-                  ),
-                );
-              },
-              child: const Text('View author (navigator.push)'),
-            ),
-            Link(
-              uri: Uri.parse('/author/${book!.author.id}'),
-              builder: (BuildContext context, FollowLink? followLink) =>
-                  TextButton(
-                onPressed: followLink,
-                child: const Text('View author (Link)'),
-              ),
-            ),
-            TextButton(
-              onPressed: () {
-                context.push('/author/${book!.author.id}');
-              },
-              child: const Text('View author (GoRouter.push)'),
-            ),
-          ],
-        ),
-      ),
-    );
-  }
-}

lib/13/go/books/src/screens/books.dart

@@ -1,118 +0,0 @@
-// Copyright 2013 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-import 'package:flutter/material.dart';
-import 'package:go_router/go_router.dart';
-
-import '../data.dart';
-import '../widgets/book_list.dart';
-
-/// A screen that displays a list of books.
-class BooksScreen extends StatefulWidget {
-  /// Creates a [BooksScreen].
-  const BooksScreen(this.kind, {super.key});
-
-  /// Which tab to display.
-  final String kind;
-
-  @override
-  State<BooksScreen> createState() => _BooksScreenState();
-}
-
-class _BooksScreenState extends State<BooksScreen>
-    with SingleTickerProviderStateMixin {
-  late TabController _tabController;
-
-  @override
-  void initState() {
-    super.initState();
-    _tabController = TabController(length: 3, vsync: this);
-  }
-
-  @override
-  void didUpdateWidget(BooksScreen oldWidget) {
-    super.didUpdateWidget(oldWidget);
-
-    switch (widget.kind) {
-      case 'popular':
-        _tabController.index = 0;
-        break;
-
-      case 'new':
-        _tabController.index = 1;
-        break;
-
-      case 'all':
-        _tabController.index = 2;
-        break;
-    }
-  }
-
-  @override
-  void dispose() {
-    _tabController.dispose();
-    super.dispose();
-  }
-
-  @override
-  Widget build(BuildContext context) => Scaffold(
-        appBar: AppBar(
-          title: const Text('Books'),
-          bottom: TabBar(
-            controller: _tabController,
-            onTap: _handleTabTapped,
-            tabs: const <Tab>[
-              Tab(
-                text: 'Popular',
-                icon: Icon(Icons.people),
-              ),
-              Tab(
-                text: 'New',
-                icon: Icon(Icons.new_releases),
-              ),
-              Tab(
-                text: 'All',
-                icon: Icon(Icons.list),
-              ),
-            ],
-          ),
-        ),
-        body: TabBarView(
-          controller: _tabController,
-          children: <Widget>[
-            BookList(
-              books: libraryInstance.popularBooks,
-              onTap: _handleBookTapped,
-            ),
-            BookList(
-              books: libraryInstance.newBooks,
-              onTap: _handleBookTapped,
-            ),
-            BookList(
-              books: libraryInstance.allBooks,
-              onTap: _handleBookTapped,
-            ),
-          ],
-        ),
-      );
-
-  void _handleBookTapped(Book book) {
-    context.go('/book/${book.id}');
-  }
-
-  void _handleTabTapped(int index) {
-    switch (index) {
-      case 1:
-        context.go('/books/new');
-        break;
-      case 2:
-        context.go('/books/all');
-        break;
-      case 0:
-      default:
-        context.go('/books/popular');
-        break;
-    }
-  }
-}

lib/13/go/books/src/screens/scaffold.dart

@@ -1,71 +0,0 @@
-// Copyright 2013 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-import 'package:adaptive_navigation/adaptive_navigation.dart';
-import 'package:flutter/material.dart';
-
-import 'package:go_router/go_router.dart';
-
-/// The enum for scaffold tab.
-enum ScaffoldTab {
-  /// The books tab.
-  books,
-
-  /// The authors tab.
-  authors,
-
-  /// The settings tab.
-  settings
-}
-
-/// The scaffold for the book store.
-class BookstoreScaffold extends StatelessWidget {
-  /// Creates a [BookstoreScaffold].
-  const BookstoreScaffold({
-    required this.selectedTab,
-    required this.child,
-    super.key,
-  });
-
-  /// Which tab of the scaffold to display.
-  final ScaffoldTab selectedTab;
-
-  /// The scaffold body.
-  final Widget child;
-
-  @override
-  Widget build(BuildContext context) => Scaffold(
-        body: AdaptiveNavigationScaffold(
-          selectedIndex: selectedTab.index,
-          body: child,
-          onDestinationSelected: (int idx) {
-            switch (ScaffoldTab.values[idx]) {
-              case ScaffoldTab.books:
-                context.go('/books');
-                break;
-              case ScaffoldTab.authors:
-                context.go('/authors');
-                break;
-              case ScaffoldTab.settings:
-                context.go('/settings');
-                break;
-            }
-          },
-          destinations: const <AdaptiveScaffoldDestination>[
-            AdaptiveScaffoldDestination(
-              title: 'Books',
-              icon: Icons.book,
-            ),
-            AdaptiveScaffoldDestination(
-              title: 'Authors',
-              icon: Icons.person,
-            ),
-            AdaptiveScaffoldDestination(
-              title: 'Settings',
-              icon: Icons.settings,
-            ),
-          ],
-        ),
-      );
-}

lib/13/go/books/src/screens/settings.dart

@@ -1,101 +0,0 @@
-// Copyright 2013 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-import 'package:flutter/material.dart';
-import 'package:go_router/go_router.dart';
-import 'package:url_launcher/link.dart';
-
-import '../auth.dart';
-
-/// The settings screen.
-class SettingsScreen extends StatefulWidget {
-  /// Creates a [SettingsScreen].
-  const SettingsScreen({super.key});
-
-  @override
-  State<SettingsScreen> createState() => _SettingsScreenState();
-}
-
-class _SettingsScreenState extends State<SettingsScreen> {
-  @override
-  Widget build(BuildContext context) => Scaffold(
-        body: SafeArea(
-          child: SingleChildScrollView(
-            child: Align(
-              alignment: Alignment.topCenter,
-              child: ConstrainedBox(
-                constraints: const BoxConstraints(maxWidth: 400),
-                child: const Card(
-                  child: Padding(
-                    padding: EdgeInsets.symmetric(vertical: 18, horizontal: 12),
-                    child: SettingsContent(),
-                  ),
-                ),
-              ),
-            ),
-          ),
-        ),
-      );
-}
-
-/// The content of a [SettingsScreen].
-class SettingsContent extends StatelessWidget {
-  /// Creates a [SettingsContent].
-  const SettingsContent({
-    super.key,
-  });
-
-  @override
-  Widget build(BuildContext context) => Column(
-        children: <Widget>[
-          ...<Widget>[
-            Text(
-              'Settings',
-              style: Theme.of(context).textTheme.headlineMedium,
-            ),
-            ElevatedButton(
-              onPressed: () {
-                BookstoreAuthScope.of(context).signOut();
-              },
-              child: const Text('Sign out'),
-            ),
-            Link(
-              uri: Uri.parse('/book/0'),
-              builder: (BuildContext context, FollowLink? followLink) =>
-                  TextButton(
-                onPressed: followLink,
-                child: const Text('Go directly to /book/0 (Link)'),
-              ),
-            ),
-            TextButton(
-              onPressed: () {
-                context.go('/book/0');
-              },
-              child: const Text('Go directly to /book/0 (GoRouter)'),
-            ),
-          ].map<Widget>((Widget w) =>
-              Padding(padding: const EdgeInsets.all(8), child: w)),
-          TextButton(
-            onPressed: () => showDialog<String>(
-              context: context,
-              builder: (BuildContext context) => AlertDialog(
-                title: const Text('Alert!'),
-                content: const Text('The alert description goes here.'),
-                actions: <Widget>[
-                  TextButton(
-                    onPressed: () => Navigator.pop(context, 'Cancel'),
-                    child: const Text('Cancel'),
-                  ),
-                  TextButton(
-                    onPressed: () => Navigator.pop(context, 'OK'),
-                    child: const Text('OK'),
-                  ),
-                ],
-              ),
-            ),
-            child: const Text('Show Dialog'),
-          )
-        ],
-      );
-}

lib/13/go/books/src/screens/sign_in.dart

@@ -1,77 +0,0 @@
-// Copyright 2013 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-import 'package:flutter/material.dart';
-
-/// Credential data class.
-class Credentials {
-  /// Creates a credential data object.
-  Credentials(this.username, this.password);
-
-  /// The username of the credentials.
-  final String username;
-
-  /// The password of the credentials.
-  final String password;
-}
-
-/// The sign-in screen.
-class SignInScreen extends StatefulWidget {
-  /// Creates a sign-in screen.
-  const SignInScreen({
-    required this.onSignIn,
-    super.key,
-  });
-
-  /// Called when users sign in with [Credentials].
-  final ValueChanged<Credentials> onSignIn;
-
-  @override
-  State<SignInScreen> createState() => _SignInScreenState();
-}
-
-class _SignInScreenState extends State<SignInScreen> {
-  final TextEditingController _usernameController = TextEditingController();
-  final TextEditingController _passwordController = TextEditingController();
-
-  @override
-  Widget build(BuildContext context) => Scaffold(
-        body: Center(
-          child: Card(
-            child: Container(
-              constraints: BoxConstraints.loose(const Size(600, 600)),
-              padding: const EdgeInsets.all(8),
-              child: Column(
-                mainAxisAlignment: MainAxisAlignment.center,
-                mainAxisSize: MainAxisSize.min,
-                children: <Widget>[
-                  Text('Sign in',
-                      style: Theme.of(context).textTheme.headlineMedium),
-                  TextField(
-                    decoration: const InputDecoration(labelText: 'Username'),
-                    controller: _usernameController,
-                  ),
-                  TextField(
-                    decoration: const InputDecoration(labelText: 'Password'),
-                    obscureText: true,
-                    controller: _passwordController,
-                  ),
-                  Padding(
-                    padding: const EdgeInsets.all(16),
-                    child: TextButton(
-                      onPressed: () async {
-                        widget.onSignIn(Credentials(
-                            _usernameController.value.text,
-                            _passwordController.value.text));
-                      },
-                      child: const Text('Sign in'),
-                    ),
-                  ),
-                ],
-              ),
-            ),
-          ),
-        ),
-      );
-}

lib/13/go/books/src/widgets/author_list.dart

@@ -1,37 +0,0 @@
-// Copyright 2013 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-import 'package:flutter/material.dart';
-
-import '../data.dart';
-
-/// The author list view.
-class AuthorList extends StatelessWidget {
-  /// Creates an [AuthorList].
-  const AuthorList({
-    required this.authors,
-    this.onTap,
-    super.key,
-  });
-
-  /// The list of authors to be shown.
-  final List<Author> authors;
-
-  /// Called when the user taps an author.
-  final ValueChanged<Author>? onTap;
-
-  @override
-  Widget build(BuildContext context) => ListView.builder(
-        itemCount: authors.length,
-        itemBuilder: (BuildContext context, int index) => ListTile(
-          title: Text(
-            authors[index].name,
-          ),
-          subtitle: Text(
-            '${authors[index].books.length} books',
-          ),
-          onTap: onTap != null ? () => onTap!(authors[index]) : null,
-        ),
-      );
-}

lib/13/go/books/src/widgets/book_list.dart

@@ -1,37 +0,0 @@
-// Copyright 2013 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-import 'package:flutter/material.dart';
-
-import '../data.dart';
-
-/// The book list view.
-class BookList extends StatelessWidget {
-  /// Creates an [BookList].
-  const BookList({
-    required this.books,
-    this.onTap,
-    super.key,
-  });
-
-  /// The list of books to be displayed.
-  final List<Book> books;
-
-  /// Called when the user taps a book.
-  final ValueChanged<Book>? onTap;
-
-  @override
-  Widget build(BuildContext context) => ListView.builder(
-        itemCount: books.length,
-        itemBuilder: (BuildContext context, int index) => ListTile(
-          title: Text(
-            books[index].title,
-          ),
-          subtitle: Text(
-            books[index].author.name,
-          ),
-          onTap: onTap != null ? () => onTap!(books[index]) : null,
-        ),
-      );
-}

lib/13/go/exception_handling.dart

@@ -1,87 +0,0 @@
-// Copyright 2013 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-import 'package:flutter/material.dart';
-import 'package:go_router/go_router.dart';
-
-/// This sample app shows how to use `GoRouter.onException` to redirect on
-/// exception.
-///
-/// The first route '/' is mapped to [HomeScreen], and the second route
-/// '/404' is mapped to [NotFoundScreen].
-///
-/// Any other unknown route or exception is redirected to `/404`.
-void main() => runApp(const MyApp());
-
-/// The route configuration.
-final GoRouter _router = GoRouter(
-  onException: (_, GoRouterState state, GoRouter router) {
-    router.go('/404', extra: state.uri.toString());
-  },
-  routes: <RouteBase>[
-    GoRoute(
-      path: '/',
-      builder: (BuildContext context, GoRouterState state) {
-        return const HomeScreen();
-      },
-    ),
-    GoRoute(
-      path: '/404',
-      builder: (BuildContext context, GoRouterState state) {
-        return NotFoundScreen(uri: state.extra as String? ?? '');
-      },
-    ),
-  ],
-);
-
-/// The main app.
-class MyApp extends StatelessWidget {
-  /// Constructs a [MyApp]
-  const MyApp({super.key});
-
-  @override
-  Widget build(BuildContext context) {
-    return MaterialApp.router(
-      routerConfig: _router,
-    );
-  }
-}
-
-/// The home screen
-class HomeScreen extends StatelessWidget {
-  /// Constructs a [HomeScreen]
-  const HomeScreen({super.key});
-
-  @override
-  Widget build(BuildContext context) {
-    return Scaffold(
-      appBar: AppBar(title: const Text('Home Screen')),
-      body: Center(
-        child: ElevatedButton(
-          onPressed: () => context.go('/some-unknown-route'),
-          child: const Text('Simulates user entering unknown url'),
-        ),
-      ),
-    );
-  }
-}
-
-/// The not found screen
-class NotFoundScreen extends StatelessWidget {
-  /// Constructs a [HomeScreen]
-  const NotFoundScreen({super.key, required this.uri});
-
-  /// The uri that can not be found.
-  final String uri;
-
-  @override
-  Widget build(BuildContext context) {
-    return Scaffold(
-      appBar: AppBar(title: const Text('Page Not Found')),
-      body: Center(
-        child: Text("Can't find a page for: $uri"),
-      ),
-    );
-  }
-}

lib/13/go/main.dart

@@ -1,87 +0,0 @@
-// Copyright 2013 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-import 'package:flutter/material.dart';
-import 'package:go_router/go_router.dart';
-
-/// This sample app shows an app with two screens.
-///
-/// The first route '/' is mapped to [HomeScreen], and the second route
-/// '/details' is mapped to [DetailsScreen].
-///
-/// The buttons use context.go() to navigate to each destination. On mobile
-/// devices, each destination is deep-linkable and on the web, can be navigated
-/// to using the address bar.
-void main() => runApp(const MyApp());
-
-/// The route configuration.
-final GoRouter _router = GoRouter(
-  routes: <RouteBase>[
-    GoRoute(
-      path: '/',
-      builder: (BuildContext context, GoRouterState state) {
-        return const HomeScreen();
-      },
-      routes: <RouteBase>[
-        GoRoute(
-          path: 'details',
-          builder: (BuildContext context, GoRouterState state) {
-            return const DetailsScreen();
-          },
-        ),
-      ],
-    ),
-  ],
-);
-
-/// The main app.
-class MyApp extends StatelessWidget {
-  /// Constructs a [MyApp]
-  const MyApp({super.key});
-
-  @override
-  Widget build(BuildContext context) {
-    return MaterialApp.router(
-      routerConfig: _router,
-    );
-  }
-}
-
-/// The home screen
-class HomeScreen extends StatelessWidget {
-  /// Constructs a [HomeScreen]
-  const HomeScreen({super.key});
-
-  @override
-  Widget build(BuildContext context) {
-    return Scaffold(
-      appBar: AppBar(title: const Text('Home Screen')),
-      body: Center(
-        child: ElevatedButton(
-          onPressed: () => context.go('/details'),
-          child: const Text('Go to the Details screen'),
-        ),
-      ),
-    );
-  }
-}
-
-/// The details screen
-class DetailsScreen extends StatelessWidget {
-  /// Constructs a [DetailsScreen]
-  const DetailsScreen({super.key});
-
-  @override
-  Widget build(BuildContext context) {
-    return Scaffold(
-      appBar: AppBar(title: const Text('Details Screen')),
-      body: Center(
-        child: ElevatedButton(
-          onPressed: () => context.go('/'),
-          child: const Text('Go back to the Home screen'),
-        ),
-      ),
-    );
-  }
-}

lib/13/go/named_routes.dart

@@ -1,181 +0,0 @@
-// Copyright 2013 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-import 'package:flutter/material.dart';
-import 'package:go_router/go_router.dart';
-
-// This scenario demonstrates how to navigate using named locations instead of
-// URLs.
-//
-// Instead of hardcoding the URI locations , you can also use the named
-// locations. To use this API, give a unique name to each GoRoute. The name can
-// then be used in context.namedLocation to be translate back to the actual URL
-// location.
-
-/// Family data class.
-class Family {
-  /// Create a family.
-  const Family({required this.name, required this.people});
-
-  /// The last name of the family.
-  final String name;
-
-  /// The people in the family.
-  final Map<String, Person> people;
-}
-
-/// Person data class.
-class Person {
-  /// Creates a person.
-  const Person({required this.name, required this.age});
-
-  /// The first name of the person.
-  final String name;
-
-  /// The age of the person.
-  final int age;
-}
-
-const Map<String, Family> _families = <String, Family>{
-  'f1': Family(
-    name: 'Doe',
-    people: <String, Person>{
-      'p1': Person(name: 'Jane', age: 23),
-      'p2': Person(name: 'John', age: 6),
-    },
-  ),
-  'f2': Family(
-    name: 'Wong',
-    people: <String, Person>{
-      'p1': Person(name: 'June', age: 51),
-      'p2': Person(name: 'Xin', age: 44),
-    },
-  ),
-};
-
-void main() => runApp(App());
-
-/// The main app.
-class App extends StatelessWidget {
-  /// Creates an [App].
-  App({super.key});
-
-  /// The title of the app.
-  static const String title = 'GoRouter Example: Named Routes';
-
-  @override
-  Widget build(BuildContext context) => MaterialApp.router(
-        routerConfig: _router,
-        title: title,
-        debugShowCheckedModeBanner: false,
-      );
-
-  late final GoRouter _router = GoRouter(
-    debugLogDiagnostics: true,
-    routes: <GoRoute>[
-      GoRoute(
-        name: 'home',
-        path: '/',
-        builder: (BuildContext context, GoRouterState state) =>
-            const HomeScreen(),
-        routes: <GoRoute>[
-          GoRoute(
-            name: 'family',
-            path: 'family/:fid',
-            builder: (BuildContext context, GoRouterState state) =>
-                FamilyScreen(fid: state.pathParameters['fid']!),
-            routes: <GoRoute>[
-              GoRoute(
-                name: 'person',
-                path: 'person/:pid',
-                builder: (BuildContext context, GoRouterState state) {
-                  return PersonScreen(
-                      fid: state.pathParameters['fid']!,
-                      pid: state.pathParameters['pid']!);
-                },
-              ),
-            ],
-          ),
-        ],
-      ),
-    ],
-  );
-}
-
-/// The home screen that shows a list of families.
-class HomeScreen extends StatelessWidget {
-  /// Creates a [HomeScreen].
-  const HomeScreen({super.key});
-
-  @override
-  Widget build(BuildContext context) {
-    return Scaffold(
-      appBar: AppBar(
-        title: const Text(App.title),
-      ),
-      body: ListView(
-        children: <Widget>[
-          for (final MapEntry<String, Family> entry in _families.entries)
-            ListTile(
-              title: Text(entry.value.name),
-              onTap: () => context.go(context.namedLocation('family',
-                  pathParameters: <String, String>{'fid': entry.key})),
-            )
-        ],
-      ),
-    );
-  }
-}
-
-/// The screen that shows a list of persons in a family.
-class FamilyScreen extends StatelessWidget {
-  /// Creates a [FamilyScreen].
-  const FamilyScreen({required this.fid, super.key});
-
-  /// The id family to display.
-  final String fid;
-
-  @override
-  Widget build(BuildContext context) {
-    final Map<String, Person> people = _families[fid]!.people;
-    return Scaffold(
-      appBar: AppBar(title: Text(_families[fid]!.name)),
-      body: ListView(
-        children: <Widget>[
-          for (final MapEntry<String, Person> entry in people.entries)
-            ListTile(
-              title: Text(entry.value.name),
-              onTap: () => context.go(context.namedLocation(
-                'person',
-                pathParameters: <String, String>{'fid': fid, 'pid': entry.key},
-                queryParameters: <String, String>{'qid': 'quid'},
-              )),
-            ),
-        ],
-      ),
-    );
-  }
-}
-
-/// The person screen.
-class PersonScreen extends StatelessWidget {
-  /// Creates a [PersonScreen].
-  const PersonScreen({required this.fid, required this.pid, super.key});
-
-  /// The id of family this person belong to.
-  final String fid;
-
-  /// The id of the person to be displayed.
-  final String pid;
-
-  @override
-  Widget build(BuildContext context) {
-    final Family family = _families[fid]!;
-    final Person person = family.people[pid]!;
-    return Scaffold(
-      appBar: AppBar(title: Text(person.name)),
-      body: Text('${person.name} ${family.name} is ${person.age} years old'),
-    );
-  }
-}

lib/13/go/others/custom_stateful_shell_route.dart

@@ -1,460 +0,0 @@
-// Copyright 2013 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-import 'package:collection/collection.dart';
-import 'package:flutter/material.dart';
-import 'package:go_router/go_router.dart';
-
-final GlobalKey<NavigatorState> _rootNavigatorKey =
-    GlobalKey<NavigatorState>(debugLabel: 'root');
-final GlobalKey<NavigatorState> _tabANavigatorKey =
-    GlobalKey<NavigatorState>(debugLabel: 'tabANav');
-
-// This example demonstrates how to setup nested navigation using a
-// BottomNavigationBar, where each bar item uses its own persistent navigator,
-// i.e. navigation state is maintained separately for each item. This setup also
-// enables deep linking into nested pages.
-//
-// This example also demonstrates how build a nested shell with a custom
-// container for the branch Navigators (in this case a TabBarView).
-
-void main() {
-  runApp(NestedTabNavigationExampleApp());
-}
-
-/// An example demonstrating how to use nested navigators
-class NestedTabNavigationExampleApp extends StatelessWidget {
-  /// Creates a NestedTabNavigationExampleApp
-  NestedTabNavigationExampleApp({super.key});
-
-  final GoRouter _router = GoRouter(
-    navigatorKey: _rootNavigatorKey,
-    initialLocation: '/a',
-    routes: <RouteBase>[
-      StatefulShellRoute(
-        builder: (BuildContext context, GoRouterState state,
-            StatefulNavigationShell navigationShell) {
-          // This nested StatefulShellRoute demonstrates the use of a
-          // custom container for the branch Navigators. In this implementation,
-          // no customization is done in the builder function (navigationShell
-          // itself is simply used as the Widget for the route). Instead, the
-          // navigatorContainerBuilder function below is provided to
-          // customize the container for the branch Navigators.
-          return navigationShell;
-        },
-        navigatorContainerBuilder: (BuildContext context,
-            StatefulNavigationShell navigationShell, List<Widget> children) {
-          // Returning a customized container for the branch
-          // Navigators (i.e. the `List<Widget> children` argument).
-          //
-          // See ScaffoldWithNavBar for more details on how the children
-          // are managed (using AnimatedBranchContainer).
-          return ScaffoldWithNavBar(
-              navigationShell: navigationShell, children: children);
-        },
-        branches: <StatefulShellBranch>[
-          // The route branch for the first tab of the bottom navigation bar.
-          StatefulShellBranch(
-            navigatorKey: _tabANavigatorKey,
-            routes: <RouteBase>[
-              GoRoute(
-                // The screen to display as the root in the first tab of the
-                // bottom navigation bar.
-                path: '/a',
-                builder: (BuildContext context, GoRouterState state) =>
-                    const RootScreenA(),
-                routes: <RouteBase>[
-                  // The details screen to display stacked on navigator of the
-                  // first tab. This will cover screen A but not the application
-                  // shell (bottom navigation bar).
-                  GoRoute(
-                    path: 'details',
-                    builder: (BuildContext context, GoRouterState state) =>
-                        const DetailsScreen(label: 'A'),
-                  ),
-                ],
-              ),
-            ],
-          ),
-
-          // The route branch for the third tab of the bottom navigation bar.
-          StatefulShellBranch(
-            // StatefulShellBranch will automatically use the first descendant
-            // GoRoute as the initial location of the branch. If another route
-            // is desired, specify the location of it using the defaultLocation
-            // parameter.
-            // defaultLocation: '/c2',
-            routes: <RouteBase>[
-              StatefulShellRoute(
-                builder: (BuildContext context, GoRouterState state,
-                    StatefulNavigationShell navigationShell) {
-                  // Just like with the top level StatefulShellRoute, no
-                  // customization is done in the builder function.
-                  return navigationShell;
-                },
-                navigatorContainerBuilder: (BuildContext context,
-                    StatefulNavigationShell navigationShell,
-                    List<Widget> children) {
-                  // Returning a customized container for the branch
-                  // Navigators (i.e. the `List<Widget> children` argument).
-                  //
-                  // See TabbedRootScreen for more details on how the children
-                  // are managed (in a TabBarView).
-                  return TabbedRootScreen(
-                      navigationShell: navigationShell, children: children);
-                },
-                // This bottom tab uses a nested shell, wrapping sub routes in a
-                // top TabBar.
-                branches: <StatefulShellBranch>[
-                  StatefulShellBranch(routes: <GoRoute>[
-                    GoRoute(
-                      path: '/b1',
-                      builder: (BuildContext context, GoRouterState state) =>
-                          const TabScreen(
-                              label: 'B1', detailsPath: '/b1/details'),
-                      routes: <RouteBase>[
-                        GoRoute(
-                          path: 'details',
-                          builder:
-                              (BuildContext context, GoRouterState state) =>
-                                  const DetailsScreen(
-                            label: 'B1',
-                            withScaffold: false,
-                          ),
-                        ),
-                      ],
-                    ),
-                  ]),
-                  StatefulShellBranch(routes: <GoRoute>[
-                    GoRoute(
-                      path: '/b2',
-                      builder: (BuildContext context, GoRouterState state) =>
-                          const TabScreen(
-                              label: 'B2', detailsPath: '/b2/details'),
-                      routes: <RouteBase>[
-                        GoRoute(
-                          path: 'details',
-                          builder:
-                              (BuildContext context, GoRouterState state) =>
-                                  const DetailsScreen(
-                            label: 'B2',
-                            withScaffold: false,
-                          ),
-                        ),
-                      ],
-                    ),
-                  ]),
-                ],
-              ),
-            ],
-          ),
-        ],
-      ),
-    ],
-  );
-
-  @override
-  Widget build(BuildContext context) {
-    return MaterialApp.router(
-      title: 'Flutter Demo',
-      theme: ThemeData(
-        primarySwatch: Colors.blue,
-      ),
-      routerConfig: _router,
-    );
-  }
-}
-
-/// Builds the "shell" for the app by building a Scaffold with a
-/// BottomNavigationBar, where [child] is placed in the body of the Scaffold.
-class ScaffoldWithNavBar extends StatelessWidget {
-  /// Constructs an [ScaffoldWithNavBar].
-  const ScaffoldWithNavBar({
-    required this.navigationShell,
-    required this.children,
-    Key? key,
-  }) : super(key: key ?? const ValueKey<String>('ScaffoldWithNavBar'));
-
-  /// The navigation shell and container for the branch Navigators.
-  final StatefulNavigationShell navigationShell;
-
-  /// The children (branch Navigators) to display in a custom container
-  /// ([AnimatedBranchContainer]).
-  final List<Widget> children;
-
-  @override
-  Widget build(BuildContext context) {
-    return Scaffold(
-      body: AnimatedBranchContainer(
-        currentIndex: navigationShell.currentIndex,
-        children: children,
-      ),
-      bottomNavigationBar: BottomNavigationBar(
-        // Here, the items of BottomNavigationBar are hard coded. In a real
-        // world scenario, the items would most likely be generated from the
-        // branches of the shell route, which can be fetched using
-        // `navigationShell.route.branches`.
-        items: const <BottomNavigationBarItem>[
-          BottomNavigationBarItem(icon: Icon(Icons.home), label: 'Section A'),
-          BottomNavigationBarItem(icon: Icon(Icons.work), label: 'Section B'),
-        ],
-        currentIndex: navigationShell.currentIndex,
-        onTap: (int index) => _onTap(context, index),
-      ),
-    );
-  }
-
-  /// Navigate to the current location of the branch at the provided index when
-  /// tapping an item in the BottomNavigationBar.
-  void _onTap(BuildContext context, int index) {
-    // When navigating to a new branch, it's recommended to use the goBranch
-    // method, as doing so makes sure the last navigation state of the
-    // Navigator for the branch is restored.
-    navigationShell.goBranch(
-      index,
-      // A common pattern when using bottom navigation bars is to support
-      // navigating to the initial location when tapping the item that is
-      // already active. This example demonstrates how to support this behavior,
-      // using the initialLocation parameter of goBranch.
-      initialLocation: index == navigationShell.currentIndex,
-    );
-  }
-}
-
-/// Custom branch Navigator container that provides animated transitions
-/// when switching branches.
-class AnimatedBranchContainer extends StatelessWidget {
-  /// Creates a AnimatedBranchContainer
-  const AnimatedBranchContainer(
-      {super.key, required this.currentIndex, required this.children});
-
-  /// The index (in [children]) of the branch Navigator to display.
-  final int currentIndex;
-
-  /// The children (branch Navigators) to display in this container.
-  final List<Widget> children;
-
-  @override
-  Widget build(BuildContext context) {
-    return Stack(
-        children: children.mapIndexed(
-      (int index, Widget navigator) {
-        return AnimatedScale(
-          scale: index == currentIndex ? 1 : 1.5,
-          duration: const Duration(milliseconds: 400),
-          child: AnimatedOpacity(
-            opacity: index == currentIndex ? 1 : 0,
-            duration: const Duration(milliseconds: 400),
-            child: _branchNavigatorWrapper(index, navigator),
-          ),
-        );
-      },
-    ).toList());
-  }
-
-  Widget _branchNavigatorWrapper(int index, Widget navigator) => IgnorePointer(
-        ignoring: index != currentIndex,
-        child: TickerMode(
-          enabled: index == currentIndex,
-          child: navigator,
-        ),
-      );
-}
-
-/// Widget for the root page for the first section of the bottom navigation bar.
-class RootScreenA extends StatelessWidget {
-  /// Creates a RootScreenA
-  const RootScreenA({super.key});
-
-  @override
-  Widget build(BuildContext context) {
-    return Scaffold(
-      appBar: AppBar(
-        title: const Text('Root of section A'),
-      ),
-      body: Center(
-        child: Column(
-          mainAxisSize: MainAxisSize.min,
-          children: <Widget>[
-            Text('Screen A', style: Theme.of(context).textTheme.titleLarge),
-            const Padding(padding: EdgeInsets.all(4)),
-            TextButton(
-              onPressed: () {
-                GoRouter.of(context).go('/a/details');
-              },
-              child: const Text('View details'),
-            ),
-          ],
-        ),
-      ),
-    );
-  }
-}
-
-/// The details screen for either the A or B screen.
-class DetailsScreen extends StatefulWidget {
-  /// Constructs a [DetailsScreen].
-  const DetailsScreen({
-    required this.label,
-    this.param,
-    this.withScaffold = true,
-    super.key,
-  });
-
-  /// The label to display in the center of the screen.
-  final String label;
-
-  /// Optional param
-  final String? param;
-
-  /// Wrap in scaffold
-  final bool withScaffold;
-
-  @override
-  State<StatefulWidget> createState() => DetailsScreenState();
-}
-
-/// The state for DetailsScreen
-class DetailsScreenState extends State<DetailsScreen> {
-  int _counter = 0;
-
-  @override
-  Widget build(BuildContext context) {
-    if (widget.withScaffold) {
-      return Scaffold(
-        appBar: AppBar(
-          title: Text('Details Screen - ${widget.label}'),
-        ),
-        body: _build(context),
-      );
-    } else {
-      return Container(
-        color: Theme.of(context).scaffoldBackgroundColor,
-        child: _build(context),
-      );
-    }
-  }
-
-  Widget _build(BuildContext context) {
-    return Center(
-      child: Column(
-        mainAxisSize: MainAxisSize.min,
-        children: <Widget>[
-          Text('Details for ${widget.label} - Counter: $_counter',
-              style: Theme.of(context).textTheme.titleLarge),
-          const Padding(padding: EdgeInsets.all(4)),
-          TextButton(
-            onPressed: () {
-              setState(() {
-                _counter++;
-              });
-            },
-            child: const Text('Increment counter'),
-          ),
-          const Padding(padding: EdgeInsets.all(8)),
-          if (widget.param != null)
-            Text('Parameter: ${widget.param!}',
-                style: Theme.of(context).textTheme.titleMedium),
-          const Padding(padding: EdgeInsets.all(8)),
-          if (!widget.withScaffold) ...<Widget>[
-            const Padding(padding: EdgeInsets.all(16)),
-            TextButton(
-              onPressed: () {
-                GoRouter.of(context).pop();
-              },
-              child: const Text('< Back',
-                  style: TextStyle(fontWeight: FontWeight.bold, fontSize: 18)),
-            ),
-          ]
-        ],
-      ),
-    );
-  }
-}
-
-/// Builds a nested shell using a [TabBar] and [TabBarView].
-class TabbedRootScreen extends StatefulWidget {
-  /// Constructs a TabbedRootScreen
-  const TabbedRootScreen(
-      {required this.navigationShell, required this.children, super.key});
-
-  /// The current state of the parent StatefulShellRoute.
-  final StatefulNavigationShell navigationShell;
-
-  /// The children (branch Navigators) to display in the [TabBarView].
-  final List<Widget> children;
-
-  @override
-  State<StatefulWidget> createState() => _TabbedRootScreenState();
-}
-
-class _TabbedRootScreenState extends State<TabbedRootScreen>
-    with SingleTickerProviderStateMixin {
-  late final TabController _tabController = TabController(
-      length: widget.children.length,
-      vsync: this,
-      initialIndex: widget.navigationShell.currentIndex);
-
-  @override
-  void didUpdateWidget(covariant TabbedRootScreen oldWidget) {
-    super.didUpdateWidget(oldWidget);
-    _tabController.index = widget.navigationShell.currentIndex;
-  }
-
-  @override
-  Widget build(BuildContext context) {
-    final List<Tab> tabs = widget.children
-        .mapIndexed((int i, _) => Tab(text: 'Tab ${i + 1}'))
-        .toList();
-
-    return Scaffold(
-      appBar: AppBar(
-          title: const Text('Root of Section B (nested TabBar shell)'),
-          bottom: TabBar(
-            controller: _tabController,
-            tabs: tabs,
-            onTap: (int tappedIndex) => _onTabTap(context, tappedIndex),
-          )),
-      body: TabBarView(
-        controller: _tabController,
-        children: widget.children,
-      ),
-    );
-  }
-
-  void _onTabTap(BuildContext context, int index) {
-    widget.navigationShell.goBranch(index);
-  }
-}
-
-/// Widget for the pages in the top tab bar.
-class TabScreen extends StatelessWidget {
-  /// Creates a RootScreen
-  const TabScreen({required this.label, required this.detailsPath, super.key});
-
-  /// The label
-  final String label;
-
-  /// The path to the detail page
-  final String detailsPath;
-
-  @override
-  Widget build(BuildContext context) {
-    return Center(
-      child: Column(
-        mainAxisSize: MainAxisSize.min,
-        children: <Widget>[
-          Text('Screen $label', style: Theme.of(context).textTheme.titleLarge),
-          const Padding(padding: EdgeInsets.all(4)),
-          TextButton(
-            onPressed: () {
-              GoRouter.of(context).go(detailsPath);
-            },
-            child: const Text('View details'),
-          ),
-        ],
-      ),
-    );
-  }
-}

lib/13/go/others/error_screen.dart

@@ -1,110 +0,0 @@
-// Copyright 2013 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-import 'package:flutter/material.dart';
-import 'package:go_router/go_router.dart';
-
-void main() => runApp(App());
-
-/// The main app.
-class App extends StatelessWidget {
-  /// Creates an [App].
-  App({super.key});
-
-  /// The title of the app.
-  static const String title = 'GoRouter Example: Custom Error Screen';
-
-  @override
-  Widget build(BuildContext context) => MaterialApp.router(
-        routerConfig: _router,
-        title: title,
-      );
-
-  final GoRouter _router = GoRouter(
-    routes: <GoRoute>[
-      GoRoute(
-        path: '/',
-        builder: (BuildContext context, GoRouterState state) =>
-            const Page1Screen(),
-      ),
-      GoRoute(
-        path: '/page2',
-        builder: (BuildContext context, GoRouterState state) =>
-            const Page2Screen(),
-      ),
-    ],
-    errorBuilder: (BuildContext context, GoRouterState state) =>
-        ErrorScreen(state.error!),
-  );
-}
-
-/// The screen of the first page.
-class Page1Screen extends StatelessWidget {
-  /// Creates a [Page1Screen].
-  const Page1Screen({super.key});
-
-  @override
-  Widget build(BuildContext context) => Scaffold(
-        appBar: AppBar(title: const Text(App.title)),
-        body: Center(
-          child: Column(
-            mainAxisAlignment: MainAxisAlignment.center,
-            children: <Widget>[
-              ElevatedButton(
-                onPressed: () => context.go('/page2'),
-                child: const Text('Go to page 2'),
-              ),
-            ],
-          ),
-        ),
-      );
-}
-
-/// The screen of the second page.
-class Page2Screen extends StatelessWidget {
-  /// Creates a [Page2Screen].
-  const Page2Screen({super.key});
-
-  @override
-  Widget build(BuildContext context) => Scaffold(
-        appBar: AppBar(title: const Text(App.title)),
-        body: Center(
-          child: Column(
-            mainAxisAlignment: MainAxisAlignment.center,
-            children: <Widget>[
-              ElevatedButton(
-                onPressed: () => context.go('/'),
-                child: const Text('Go to home page'),
-              ),
-            ],
-          ),
-        ),
-      );
-}
-
-/// The screen of the error page.
-class ErrorScreen extends StatelessWidget {
-  /// Creates an [ErrorScreen].
-  const ErrorScreen(this.error, {super.key});
-
-  /// The error to display.
-  final Exception error;
-
-  @override
-  Widget build(BuildContext context) => Scaffold(
-        appBar: AppBar(title: const Text('My "Page Not Found" Screen')),
-        body: Center(
-          child: Column(
-            mainAxisAlignment: MainAxisAlignment.center,
-            children: <Widget>[
-              SelectableText(error.toString()),
-              TextButton(
-                onPressed: () => context.go('/'),
-                child: const Text('Home'),
-              ),
-            ],
-          ),
-        ),
-      );
-}

lib/13/go/others/extra_param.dart

@@ -1,133 +0,0 @@
-// Copyright 2013 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-import 'package:flutter/material.dart';
-import 'package:go_router/go_router.dart';
-
-/// Family data class.
-class Family {
-  /// Create a family.
-  const Family({required this.name, required this.people});
-
-  /// The last name of the family.
-  final String name;
-
-  /// The people in the family.
-  final Map<String, Person> people;
-}
-
-/// Person data class.
-class Person {
-  /// Creates a person.
-  const Person({required this.name, required this.age});
-
-  /// The first name of the person.
-  final String name;
-
-  /// The age of the person.
-  final int age;
-}
-
-const Map<String, Family> _families = <String, Family>{
-  'f1': Family(
-    name: 'Doe',
-    people: <String, Person>{
-      'p1': Person(name: 'Jane', age: 23),
-      'p2': Person(name: 'John', age: 6),
-    },
-  ),
-  'f2': Family(
-    name: 'Wong',
-    people: <String, Person>{
-      'p1': Person(name: 'June', age: 51),
-      'p2': Person(name: 'Xin', age: 44),
-    },
-  ),
-};
-
-void main() => runApp(App());
-
-/// The main app.
-class App extends StatelessWidget {
-  /// Creates an [App].
-  App({super.key});
-
-  /// The title of the app.
-  static const String title = 'GoRouter Example: Extra Parameter';
-
-  @override
-  Widget build(BuildContext context) => MaterialApp.router(
-        routerConfig: _router,
-        title: title,
-      );
-
-  late final GoRouter _router = GoRouter(
-    routes: <GoRoute>[
-      GoRoute(
-        name: 'home',
-        path: '/',
-        builder: (BuildContext context, GoRouterState state) =>
-            const HomeScreen(),
-        routes: <GoRoute>[
-          GoRoute(
-            name: 'family',
-            path: 'family',
-            builder: (BuildContext context, GoRouterState state) {
-              final Map<String, Object> params =
-                  state.extra! as Map<String, String>;
-              final String fid = params['fid']! as String;
-              return FamilyScreen(fid: fid);
-            },
-          ),
-        ],
-      ),
-    ],
-  );
-}
-
-/// The home screen that shows a list of families.
-class HomeScreen extends StatelessWidget {
-  /// Creates a [HomeScreen].
-  const HomeScreen({super.key});
-
-  @override
-  Widget build(BuildContext context) => Scaffold(
-        appBar: AppBar(title: const Text(App.title)),
-        body: ListView(
-          children: <Widget>[
-            for (final MapEntry<String, Family> entry in _families.entries)
-              ListTile(
-                title: Text(entry.value.name),
-                onTap: () => context.goNamed('family',
-                    extra: <String, String>{'fid': entry.key}),
-              )
-          ],
-        ),
-      );
-}
-
-/// The screen that shows a list of persons in a family.
-class FamilyScreen extends StatelessWidget {
-  /// Creates a [FamilyScreen].
-  const FamilyScreen({required this.fid, super.key});
-
-  /// The family to display.
-  final String fid;
-
-  @override
-  Widget build(BuildContext context) {
-    final Map<String, Person> people = _families[fid]!.people;
-    return Scaffold(
-      appBar: AppBar(title: Text(_families[fid]!.name)),
-      body: ListView(
-        children: <Widget>[
-          for (final Person p in people.values)
-            ListTile(
-              title: Text(p.name),
-            ),
-        ],
-      ),
-    );
-  }
-}

lib/13/go/others/init_loc.dart

@@ -1,110 +0,0 @@
-// Copyright 2013 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-import 'package:flutter/material.dart';
-import 'package:go_router/go_router.dart';
-
-void main() => runApp(App());
-
-/// The main app.
-class App extends StatelessWidget {
-  /// Creates an [App].
-  App({super.key});
-
-  /// The title of the app.
-  static const String title = 'GoRouter Example: Initial Location';
-
-  @override
-  Widget build(BuildContext context) => MaterialApp.router(
-        routerConfig: _router,
-        title: title,
-      );
-
-  final GoRouter _router = GoRouter(
-    initialLocation: '/page3',
-    routes: <GoRoute>[
-      GoRoute(
-        path: '/',
-        builder: (BuildContext context, GoRouterState state) =>
-            const Page1Screen(),
-      ),
-      GoRoute(
-        path: '/page2',
-        builder: (BuildContext context, GoRouterState state) =>
-            const Page2Screen(),
-      ),
-      GoRoute(
-        path: '/page3',
-        builder: (BuildContext context, GoRouterState state) =>
-            const Page3Screen(),
-      ),
-    ],
-  );
-}
-
-/// The screen of the first page.
-class Page1Screen extends StatelessWidget {
-  /// Creates a [Page1Screen].
-  const Page1Screen({super.key});
-
-  @override
-  Widget build(BuildContext context) => Scaffold(
-        appBar: AppBar(title: const Text(App.title)),
-        body: Center(
-          child: Column(
-            mainAxisAlignment: MainAxisAlignment.center,
-            children: <Widget>[
-              ElevatedButton(
-                onPressed: () => context.go('/page2'),
-                child: const Text('Go to page 2'),
-              ),
-            ],
-          ),
-        ),
-      );
-}
-
-/// The screen of the second page.
-class Page2Screen extends StatelessWidget {
-  /// Creates a [Page2Screen].
-  const Page2Screen({super.key});
-
-  @override
-  Widget build(BuildContext context) => Scaffold(
-        appBar: AppBar(title: const Text(App.title)),
-        body: Center(
-          child: Column(
-            mainAxisAlignment: MainAxisAlignment.center,
-            children: <Widget>[
-              ElevatedButton(
-                onPressed: () => context.go('/'),
-                child: const Text('Go to home page'),
-              ),
-            ],
-          ),
-        ),
-      );
-}
-
-/// The screen of the third page.
-class Page3Screen extends StatelessWidget {
-  /// Creates a [Page3Screen].
-  const Page3Screen({super.key});
-
-  @override
-  Widget build(BuildContext context) => Scaffold(
-        appBar: AppBar(title: const Text(App.title)),
-        body: Center(
-          child: Column(
-            mainAxisAlignment: MainAxisAlignment.center,
-            children: <Widget>[
-              ElevatedButton(
-                onPressed: () => context.go('/page2'),
-                child: const Text('Go to page 2'),
-              ),
-            ],
-          ),
-        ),
-      );
-}

lib/13/go/others/nav_observer.dart

@@ -1,167 +0,0 @@
-// Copyright 2013 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-import 'package:flutter/material.dart';
-import 'package:go_router/go_router.dart';
-import 'package:logging/logging.dart';
-
-void main() => runApp(App());
-
-/// The main app.
-class App extends StatelessWidget {
-  /// Creates an [App].
-  App({super.key});
-
-  /// The title of the app.
-  static const String title = 'GoRouter Example: Navigator Observer';
-
-  @override
-  Widget build(BuildContext context) => MaterialApp.router(
-        routerConfig: _router,
-        title: title,
-      );
-
-  final GoRouter _router = GoRouter(
-    observers: <NavigatorObserver>[MyNavObserver()],
-    routes: <GoRoute>[
-      GoRoute(
-        // if there's no name, path will be used as name for observers
-        path: '/',
-        builder: (BuildContext context, GoRouterState state) =>
-            const Page1Screen(),
-        routes: <GoRoute>[
-          GoRoute(
-            name: 'page2',
-            path: 'page2/:p1',
-            builder: (BuildContext context, GoRouterState state) =>
-                const Page2Screen(),
-            routes: <GoRoute>[
-              GoRoute(
-                name: 'page3',
-                path: 'page3',
-                builder: (BuildContext context, GoRouterState state) =>
-                    const Page3Screen(),
-              ),
-            ],
-          ),
-        ],
-      ),
-    ],
-  );
-}
-
-/// The Navigator observer.
-class MyNavObserver extends NavigatorObserver {
-  /// Creates a [MyNavObserver].
-  MyNavObserver() {
-    log.onRecord.listen((LogRecord e) => debugPrint('$e'));
-  }
-
-  /// The logged message.
-  final Logger log = Logger('MyNavObserver');
-
-  @override
-  void didPush(Route<dynamic> route, Route<dynamic>? previousRoute) =>
-      log.info('didPush: ${route.str}, previousRoute= ${previousRoute?.str}');
-
-  @override
-  void didPop(Route<dynamic> route, Route<dynamic>? previousRoute) =>
-      log.info('didPop: ${route.str}, previousRoute= ${previousRoute?.str}');
-
-  @override
-  void didRemove(Route<dynamic> route, Route<dynamic>? previousRoute) =>
-      log.info('didRemove: ${route.str}, previousRoute= ${previousRoute?.str}');
-
-  @override
-  void didReplace({Route<dynamic>? newRoute, Route<dynamic>? oldRoute}) =>
-      log.info('didReplace: new= ${newRoute?.str}, old= ${oldRoute?.str}');
-
-  @override
-  void didStartUserGesture(
-    Route<dynamic> route,
-    Route<dynamic>? previousRoute,
-  ) =>
-      log.info('didStartUserGesture: ${route.str}, '
-          'previousRoute= ${previousRoute?.str}');
-
-  @override
-  void didStopUserGesture() => log.info('didStopUserGesture');
-}
-
-extension on Route<dynamic> {
-  String get str => 'route(${settings.name}: ${settings.arguments})';
-}
-
-/// The screen of the first page.
-class Page1Screen extends StatelessWidget {
-  /// Creates a [Page1Screen].
-  const Page1Screen({super.key});
-
-  @override
-  Widget build(BuildContext context) => Scaffold(
-        appBar: AppBar(title: const Text(App.title)),
-        body: Center(
-          child: Column(
-            mainAxisAlignment: MainAxisAlignment.center,
-            children: <Widget>[
-              ElevatedButton(
-                onPressed: () => context.goNamed(
-                  'page2',
-                  pathParameters: <String, String>{'p1': 'pv1'},
-                  queryParameters: <String, String>{'q1': 'qv1'},
-                ),
-                child: const Text('Go to page 2'),
-              ),
-            ],
-          ),
-        ),
-      );
-}
-
-/// The screen of the second page.
-class Page2Screen extends StatelessWidget {
-  /// Creates a [Page2Screen].
-  const Page2Screen({super.key});
-
-  @override
-  Widget build(BuildContext context) => Scaffold(
-        appBar: AppBar(title: const Text(App.title)),
-        body: Center(
-          child: Column(
-            mainAxisAlignment: MainAxisAlignment.center,
-            children: <Widget>[
-              ElevatedButton(
-                onPressed: () => context.goNamed(
-                  'page3',
-                  pathParameters: <String, String>{'p1': 'pv2'},
-                ),
-                child: const Text('Go to page 3'),
-              ),
-            ],
-          ),
-        ),
-      );
-}
-
-/// The screen of the third page.
-class Page3Screen extends StatelessWidget {
-  /// Creates a [Page3Screen].
-  const Page3Screen({super.key});
-
-  @override
-  Widget build(BuildContext context) => Scaffold(
-        appBar: AppBar(title: const Text(App.title)),
-        body: Center(
-          child: Column(
-            mainAxisAlignment: MainAxisAlignment.center,
-            children: <Widget>[
-              ElevatedButton(
-                onPressed: () => context.go('/'),
-                child: const Text('Go to home page'),
-              ),
-            ],
-          ),
-        ),
-      );
-}

lib/13/go/others/push.dart

@@ -1,101 +0,0 @@
-// Copyright 2013 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-import 'package:flutter/material.dart';
-import 'package:go_router/go_router.dart';
-
-void main() => runApp(App());
-
-/// The main app.
-class App extends StatelessWidget {
-  /// Creates an [App].
-  App({super.key});
-
-  /// The title of the app.
-  static const String title = 'GoRouter Example: Push';
-
-  @override
-  Widget build(BuildContext context) => MaterialApp.router(
-        routerConfig: _router,
-        title: title,
-      );
-
-  late final GoRouter _router = GoRouter(
-    routes: <GoRoute>[
-      GoRoute(
-        path: '/',
-        builder: (BuildContext context, GoRouterState state) =>
-            const Page1ScreenWithPush(),
-      ),
-      GoRoute(
-        path: '/page2',
-        builder: (BuildContext context, GoRouterState state) =>
-            Page2ScreenWithPush(
-          int.parse(state.uri.queryParameters['push-count']!),
-        ),
-      ),
-    ],
-  );
-}
-
-/// The screen of the first page.
-class Page1ScreenWithPush extends StatelessWidget {
-  /// Creates a [Page1ScreenWithPush].
-  const Page1ScreenWithPush({super.key});
-
-  @override
-  Widget build(BuildContext context) => Scaffold(
-        appBar: AppBar(title: const Text('${App.title}: page 1')),
-        body: Center(
-          child: Column(
-            mainAxisAlignment: MainAxisAlignment.center,
-            children: <Widget>[
-              ElevatedButton(
-                onPressed: () => context.push('/page2?push-count=1'),
-                child: const Text('Push page 2'),
-              ),
-            ],
-          ),
-        ),
-      );
-}
-
-/// The screen of the second page.
-class Page2ScreenWithPush extends StatelessWidget {
-  /// Creates a [Page2ScreenWithPush].
-  const Page2ScreenWithPush(this.pushCount, {super.key});
-
-  /// The push count.
-  final int pushCount;
-
-  @override
-  Widget build(BuildContext context) => Scaffold(
-        appBar: AppBar(
-          title: Text('${App.title}: page 2 w/ push count $pushCount'),
-        ),
-        body: Center(
-          child: Column(
-            mainAxisAlignment: MainAxisAlignment.center,
-            children: <Widget>[
-              Padding(
-                padding: const EdgeInsets.all(8),
-                child: ElevatedButton(
-                  onPressed: () => context.go('/'),
-                  child: const Text('Go to home page'),
-                ),
-              ),
-              Padding(
-                padding: const EdgeInsets.all(8),
-                child: ElevatedButton(
-                  onPressed: () => context.push(
-                    '/page2?push-count=${pushCount + 1}',
-                  ),
-                  child: const Text('Push page 2 (again)'),
-                ),
-              ),
-            ],
-          ),
-        ),
-      );
-}

lib/13/go/others/router_neglect.dart

@@ -1,95 +0,0 @@
-// Copyright 2013 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-import 'package:flutter/material.dart';
-import 'package:go_router/go_router.dart';
-
-void main() => runApp(App());
-
-/// The main app.
-class App extends StatelessWidget {
-  /// Creates an [App].
-  App({super.key});
-
-  /// The title of the app.
-  static const String title = 'GoRouter Example: Router neglect';
-
-  @override
-  Widget build(BuildContext context) => MaterialApp.router(
-        routerConfig: _router,
-        title: title,
-      );
-
-  final GoRouter _router = GoRouter(
-    // turn off history tracking in the browser for this navigation
-    routerNeglect: true,
-    routes: <GoRoute>[
-      GoRoute(
-        path: '/',
-        builder: (BuildContext context, GoRouterState state) =>
-            const Page1Screen(),
-      ),
-      GoRoute(
-        path: '/page2',
-        builder: (BuildContext context, GoRouterState state) =>
-            const Page2Screen(),
-      ),
-    ],
-  );
-}
-
-/// The screen of the first page.
-class Page1Screen extends StatelessWidget {
-  /// Creates a [Page1Screen].
-  const Page1Screen({super.key});
-
-  @override
-  Widget build(BuildContext context) => Scaffold(
-        appBar: AppBar(title: const Text(App.title)),
-        body: Center(
-          child: Column(
-            mainAxisAlignment: MainAxisAlignment.center,
-            children: <Widget>[
-              ElevatedButton(
-                onPressed: () => context.go('/page2'),
-                child: const Text('Go to page 2'),
-              ),
-              const SizedBox(height: 8),
-              ElevatedButton(
-                // turn off history tracking in the browser for this navigation;
-                // note that this isn't necessary when you've set routerNeglect
-                // but it does illustrate the technique
-                onPressed: () => Router.neglect(
-                  context,
-                  () => context.push('/page2'),
-                ),
-                child: const Text('Push page 2'),
-              ),
-            ],
-          ),
-        ),
-      );
-}
-
-/// The screen of the second page.
-class Page2Screen extends StatelessWidget {
-  /// Creates a [Page2Screen].
-  const Page2Screen({super.key});
-
-  @override
-  Widget build(BuildContext context) => Scaffold(
-        appBar: AppBar(title: const Text(App.title)),
-        body: Center(
-          child: Column(
-            mainAxisAlignment: MainAxisAlignment.center,
-            children: <Widget>[
-              ElevatedButton(
-                onPressed: () => context.go('/'),
-                child: const Text('Go to home page'),
-              ),
-            ],
-          ),
-        ),
-      );
-}

lib/13/go/others/state_restoration.dart

@@ -1,102 +0,0 @@
-// Copyright 2013 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-import 'package:flutter/material.dart';
-import 'package:go_router/go_router.dart';
-
-void main() => runApp(
-      const RootRestorationScope(restorationId: 'root', child: App()),
-    );
-
-/// The main app.
-class App extends StatefulWidget {
-  /// Creates an [App].
-  const App({super.key});
-
-  /// The title of the app.
-  static const String title = 'GoRouter Example: State Restoration';
-
-  @override
-  State<App> createState() => _AppState();
-}
-
-class _AppState extends State<App> with RestorationMixin {
-  @override
-  String get restorationId => 'wrapper';
-
-  @override
-  void restoreState(RestorationBucket? oldBucket, bool initialRestore) {
-    // Implement restoreState for your app
-  }
-
-  @override
-  Widget build(BuildContext context) => MaterialApp.router(
-        routerConfig: _router,
-        title: App.title,
-        restorationScopeId: 'app',
-      );
-
-  final GoRouter _router = GoRouter(
-    routes: <GoRoute>[
-      // restorationId set for the route automatically
-      GoRoute(
-        path: '/',
-        builder: (BuildContext context, GoRouterState state) =>
-            const Page1Screen(),
-      ),
-
-      // restorationId set for the route automatically
-      GoRoute(
-        path: '/page2',
-        builder: (BuildContext context, GoRouterState state) =>
-            const Page2Screen(),
-      ),
-    ],
-    restorationScopeId: 'router',
-  );
-}
-
-/// The screen of the first page.
-class Page1Screen extends StatelessWidget {
-  /// Creates a [Page1Screen].
-  const Page1Screen({super.key});
-
-  @override
-  Widget build(BuildContext context) => Scaffold(
-        appBar: AppBar(title: const Text(App.title)),
-        body: Center(
-          child: Column(
-            mainAxisAlignment: MainAxisAlignment.center,
-            children: <Widget>[
-              ElevatedButton(
-                onPressed: () => context.go('/page2'),
-                child: const Text('Go to page 2'),
-              ),
-            ],
-          ),
-        ),
-      );
-}
-
-/// The screen of the second page.
-class Page2Screen extends StatelessWidget {
-  /// Creates a [Page2Screen].
-  const Page2Screen({super.key});
-
-  @override
-  Widget build(BuildContext context) => Scaffold(
-        appBar: AppBar(title: const Text(App.title)),
-        body: Center(
-          child: Column(
-            mainAxisAlignment: MainAxisAlignment.center,
-            children: <Widget>[
-              ElevatedButton(
-                onPressed: () => context.go('/'),
-                child: const Text('Go to home page'),
-              ),
-            ],
-          ),
-        ),
-      );
-}

lib/13/go/others/stateful_shell_state_restoration.dart

@@ -1,236 +0,0 @@
-// Copyright 2013 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-import 'package:flutter/material.dart';
-import 'package:go_router/go_router.dart';
-
-void main() => runApp(RestorableStatefulShellRouteExampleApp());
-
-/// An example demonstrating how to use StatefulShellRoute with state
-/// restoration.
-class RestorableStatefulShellRouteExampleApp extends StatelessWidget {
-  /// Creates a NestedTabNavigationExampleApp
-  RestorableStatefulShellRouteExampleApp({super.key});
-
-  final GoRouter _router = GoRouter(
-    initialLocation: '/a',
-    restorationScopeId: 'router',
-    routes: <RouteBase>[
-      StatefulShellRoute.indexedStack(
-        restorationScopeId: 'shell1',
-        pageBuilder: (BuildContext context, GoRouterState state,
-            StatefulNavigationShell navigationShell) {
-          return MaterialPage<void>(
-              restorationId: 'shellWidget1',
-              child: ScaffoldWithNavBar(navigationShell: navigationShell));
-        },
-        branches: <StatefulShellBranch>[
-          // The route branch for the first tab of the bottom navigation bar.
-          StatefulShellBranch(
-            restorationScopeId: 'branchA',
-            routes: <RouteBase>[
-              GoRoute(
-                // The screen to display as the root in the first tab of the
-                // bottom navigation bar.
-                path: '/a',
-                pageBuilder: (BuildContext context, GoRouterState state) =>
-                    const MaterialPage<void>(
-                        restorationId: 'screenA',
-                        child:
-                            RootScreen(label: 'A', detailsPath: '/a/details')),
-                routes: <RouteBase>[
-                  // The details screen to display stacked on navigator of the
-                  // first tab. This will cover screen A but not the application
-                  // shell (bottom navigation bar).
-                  GoRoute(
-                    path: 'details',
-                    pageBuilder: (BuildContext context, GoRouterState state) =>
-                        const MaterialPage<void>(
-                            restorationId: 'screenADetail',
-                            child: DetailsScreen(label: 'A')),
-                  ),
-                ],
-              ),
-            ],
-          ),
-          // The route branch for the second tab of the bottom navigation bar.
-          StatefulShellBranch(
-            restorationScopeId: 'branchB',
-            routes: <RouteBase>[
-              GoRoute(
-                // The screen to display as the root in the second tab of the
-                // bottom navigation bar.
-                path: '/b',
-                pageBuilder: (BuildContext context, GoRouterState state) =>
-                    const MaterialPage<void>(
-                        restorationId: 'screenB',
-                        child:
-                            RootScreen(label: 'B', detailsPath: '/b/details')),
-                routes: <RouteBase>[
-                  // The details screen to display stacked on navigator of the
-                  // first tab. This will cover screen A but not the application
-                  // shell (bottom navigation bar).
-                  GoRoute(
-                    path: 'details',
-                    pageBuilder: (BuildContext context, GoRouterState state) =>
-                        const MaterialPage<void>(
-                            restorationId: 'screenBDetail',
-                            child: DetailsScreen(label: 'B')),
-                  ),
-                ],
-              ),
-            ],
-          ),
-        ],
-      ),
-    ],
-  );
-
-  @override
-  Widget build(BuildContext context) {
-    return MaterialApp.router(
-      restorationScopeId: 'app',
-      title: 'Flutter Demo',
-      theme: ThemeData(
-        primarySwatch: Colors.blue,
-      ),
-      routerConfig: _router,
-    );
-  }
-}
-
-/// Builds the "shell" for the app by building a Scaffold with a
-/// BottomNavigationBar, where [child] is placed in the body of the Scaffold.
-class ScaffoldWithNavBar extends StatelessWidget {
-  /// Constructs an [ScaffoldWithNavBar].
-  const ScaffoldWithNavBar({
-    required this.navigationShell,
-    Key? key,
-  }) : super(key: key ?? const ValueKey<String>('ScaffoldWithNavBar'));
-
-  /// The navigation shell and container for the branch Navigators.
-  final StatefulNavigationShell navigationShell;
-
-  @override
-  Widget build(BuildContext context) {
-    return Scaffold(
-      body: navigationShell,
-      bottomNavigationBar: BottomNavigationBar(
-        items: const <BottomNavigationBarItem>[
-          BottomNavigationBarItem(icon: Icon(Icons.home), label: 'Section A'),
-          BottomNavigationBarItem(icon: Icon(Icons.work), label: 'Section B'),
-        ],
-        currentIndex: navigationShell.currentIndex,
-        onTap: (int tappedIndex) => navigationShell.goBranch(tappedIndex),
-      ),
-    );
-  }
-}
-
-/// Widget for the root/initial pages in the bottom navigation bar.
-class RootScreen extends StatelessWidget {
-  /// Creates a RootScreen
-  const RootScreen({
-    required this.label,
-    required this.detailsPath,
-    super.key,
-  });
-
-  /// The label
-  final String label;
-
-  /// The path to the detail page
-  final String detailsPath;
-
-  @override
-  Widget build(BuildContext context) {
-    return Scaffold(
-      appBar: AppBar(
-        title: Text('Root of section $label'),
-      ),
-      body: Center(
-        child: Column(
-          mainAxisSize: MainAxisSize.min,
-          children: <Widget>[
-            Text('Screen $label',
-                style: Theme.of(context).textTheme.titleLarge),
-            const Padding(padding: EdgeInsets.all(4)),
-            TextButton(
-              onPressed: () {
-                GoRouter.of(context).go(detailsPath);
-              },
-              child: const Text('View details'),
-            ),
-          ],
-        ),
-      ),
-    );
-  }
-}
-
-/// The details screen for either the A or B screen.
-class DetailsScreen extends StatefulWidget {
-  /// Constructs a [DetailsScreen].
-  const DetailsScreen({
-    required this.label,
-    super.key,
-  });
-
-  /// The label to display in the center of the screen.
-  final String label;
-
-  @override
-  State<StatefulWidget> createState() => DetailsScreenState();
-}
-
-/// The state for DetailsScreen
-class DetailsScreenState extends State<DetailsScreen> with RestorationMixin {
-  final RestorableInt _counter = RestorableInt(0);
-
-  @override
-  String? get restorationId => 'DetailsScreen-${widget.label}';
-
-  @override
-  void restoreState(RestorationBucket? oldBucket, bool initialRestore) {
-    registerForRestoration(_counter, 'counter');
-  }
-
-  @override
-  void dispose() {
-    super.dispose();
-    _counter.dispose();
-  }
-
-  @override
-  Widget build(BuildContext context) {
-    return Scaffold(
-      appBar: AppBar(
-        title: Text('Details Screen - ${widget.label}'),
-      ),
-      body: _build(context),
-    );
-  }
-
-  Widget _build(BuildContext context) {
-    return Center(
-      child: Column(
-        mainAxisSize: MainAxisSize.min,
-        children: <Widget>[
-          Text('Details for ${widget.label} - Counter: ${_counter.value}',
-              style: Theme.of(context).textTheme.titleLarge),
-          const Padding(padding: EdgeInsets.all(4)),
-          TextButton(
-            onPressed: () {
-              setState(() {
-                _counter.value++;
-              });
-            },
-            child: const Text('Increment counter'),
-          ),
-          const Padding(padding: EdgeInsets.all(8)),
-        ],
-      ),
-    );
-  }
-}

lib/13/go/others/transitions.dart

@@ -1,163 +0,0 @@
-// Copyright 2013 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-import 'package:flutter/material.dart';
-import 'package:go_router/go_router.dart';
-
-void main() => runApp(App());
-
-/// The main app.
-class App extends StatelessWidget {
-  /// Creates an [App].
-  App({super.key});
-
-  /// The title of the app.
-  static const String title = 'GoRouter Example: Custom Transitions';
-
-  @override
-  Widget build(BuildContext context) => MaterialApp.router(
-        routerConfig: _router,
-        title: title,
-      );
-
-  final GoRouter _router = GoRouter(
-    routes: <GoRoute>[
-      GoRoute(
-        path: '/',
-        redirect: (_, __) => '/none',
-      ),
-      GoRoute(
-        path: '/fade',
-        pageBuilder: (BuildContext context, GoRouterState state) =>
-            CustomTransitionPage<void>(
-          key: state.pageKey,
-          child: const ExampleTransitionsScreen(
-            kind: 'fade',
-            color: Colors.red,
-          ),
-          transitionsBuilder: (BuildContext context,
-                  Animation<double> animation,
-                  Animation<double> secondaryAnimation,
-                  Widget child) =>
-              FadeTransition(opacity: animation, child: child),
-        ),
-      ),
-      GoRoute(
-        path: '/scale',
-        pageBuilder: (BuildContext context, GoRouterState state) =>
-            CustomTransitionPage<void>(
-          key: state.pageKey,
-          child: const ExampleTransitionsScreen(
-            kind: 'scale',
-            color: Colors.green,
-          ),
-          transitionsBuilder: (BuildContext context,
-                  Animation<double> animation,
-                  Animation<double> secondaryAnimation,
-                  Widget child) =>
-              ScaleTransition(scale: animation, child: child),
-        ),
-      ),
-      GoRoute(
-        path: '/slide',
-        pageBuilder: (BuildContext context, GoRouterState state) =>
-            CustomTransitionPage<void>(
-          key: state.pageKey,
-          child: const ExampleTransitionsScreen(
-            kind: 'slide',
-            color: Colors.yellow,
-          ),
-          transitionsBuilder: (BuildContext context,
-                  Animation<double> animation,
-                  Animation<double> secondaryAnimation,
-                  Widget child) =>
-              SlideTransition(
-            position: animation.drive(
-              Tween<Offset>(
-                begin: const Offset(0.25, 0.25),
-                end: Offset.zero,
-              ).chain(CurveTween(curve: Curves.easeIn)),
-            ),
-            child: child,
-          ),
-        ),
-      ),
-      GoRoute(
-        path: '/rotation',
-        pageBuilder: (BuildContext context, GoRouterState state) =>
-            CustomTransitionPage<void>(
-          key: state.pageKey,
-          child: const ExampleTransitionsScreen(
-            kind: 'rotation',
-            color: Colors.purple,
-          ),
-          transitionsBuilder: (BuildContext context,
-                  Animation<double> animation,
-                  Animation<double> secondaryAnimation,
-                  Widget child) =>
-              RotationTransition(turns: animation, child: child),
-        ),
-      ),
-      GoRoute(
-        path: '/none',
-        pageBuilder: (BuildContext context, GoRouterState state) =>
-            NoTransitionPage<void>(
-          key: state.pageKey,
-          child: const ExampleTransitionsScreen(
-            kind: 'none',
-            color: Colors.white,
-          ),
-        ),
-      ),
-    ],
-  );
-}
-
-/// An Example transitions screen.
-class ExampleTransitionsScreen extends StatelessWidget {
-  /// Creates an [ExampleTransitionsScreen].
-  const ExampleTransitionsScreen({
-    required this.color,
-    required this.kind,
-    super.key,
-  });
-
-  /// The available transition kinds.
-  static final List<String> kinds = <String>[
-    'fade',
-    'scale',
-    'slide',
-    'rotation',
-    'none'
-  ];
-
-  /// The color of the container.
-  final Color color;
-
-  /// The transition kind.
-  final String kind;
-
-  @override
-  Widget build(BuildContext context) => Scaffold(
-        appBar: AppBar(title: Text('${App.title}: $kind')),
-        body: Container(
-          color: color,
-          child: Center(
-            child: Column(
-              mainAxisAlignment: MainAxisAlignment.center,
-              children: <Widget>[
-                for (final String kind in kinds)
-                  Padding(
-                    padding: const EdgeInsets.all(8),
-                    child: ElevatedButton(
-                      onPressed: () => context.go('/$kind'),
-                      child: Text('$kind transition'),
-                    ),
-                  )
-              ],
-            ),
-          ),
-        ),
-      );
-}

lib/13/go/path_and_query_parameters.dart

@@ -1,169 +0,0 @@
-// Copyright 2013 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-import 'package:flutter/material.dart';
-import 'package:go_router/go_router.dart';
-
-// This scenario demonstrates how to use path parameters and query parameters.
-//
-// The route segments that start with ':' are treated as path parameters when
-// defining GoRoute[s]. The parameter values can be accessed through
-// GoRouterState.pathParameters.
-//
-// The query parameters are automatically stored in GoRouterState.queryParameters.
-
-/// Family data class.
-class Family {
-  /// Create a family.
-  const Family({required this.name, required this.people});
-
-  /// The last name of the family.
-  final String name;
-
-  /// The people in the family.
-  final Map<String, Person> people;
-}
-
-/// Person data class.
-class Person {
-  /// Creates a person.
-  const Person({required this.name, required this.age});
-
-  /// The first name of the person.
-  final String name;
-
-  /// The age of the person.
-  final int age;
-}
-
-const Map<String, Family> _families = <String, Family>{
-  'f1': Family(
-    name: 'Doe',
-    people: <String, Person>{
-      'p1': Person(name: 'Jane', age: 23),
-      'p2': Person(name: 'John', age: 6),
-    },
-  ),
-  'f2': Family(
-    name: 'Wong',
-    people: <String, Person>{
-      'p1': Person(name: 'June', age: 51),
-      'p2': Person(name: 'Xin', age: 44),
-    },
-  ),
-};
-
-void main() => runApp(App());
-
-/// The main app.
-class App extends StatelessWidget {
-  /// Creates an [App].
-  App({super.key});
-
-  /// The title of the app.
-  static const String title = 'GoRouter Example: Query Parameters';
-
-  // add the login info into the tree as app state that can change over time
-  @override
-  Widget build(BuildContext context) => MaterialApp.router(
-        routerConfig: _router,
-        title: title,
-        debugShowCheckedModeBanner: false,
-      );
-
-  late final GoRouter _router = GoRouter(
-    routes: <GoRoute>[
-      GoRoute(
-        path: '/',
-        builder: (BuildContext context, GoRouterState state) =>
-            const HomeScreen(),
-        routes: <GoRoute>[
-          GoRoute(
-              name: 'family',
-              path: 'family/:fid',
-              builder: (BuildContext context, GoRouterState state) {
-                return FamilyScreen(
-                  fid: state.pathParameters['fid']!,
-                  asc: state.uri.queryParameters['sort'] == 'asc',
-                );
-              }),
-        ],
-      ),
-    ],
-  );
-}
-
-/// The home screen that shows a list of families.
-class HomeScreen extends StatelessWidget {
-  /// Creates a [HomeScreen].
-  const HomeScreen({super.key});
-
-  @override
-  Widget build(BuildContext context) {
-    return Scaffold(
-      appBar: AppBar(
-        title: const Text(App.title),
-      ),
-      body: ListView(
-        children: <Widget>[
-          for (final MapEntry<String, Family> entry in _families.entries)
-            ListTile(
-              title: Text(entry.value.name),
-              onTap: () => context.go('/family/${entry.key}'),
-            )
-        ],
-      ),
-    );
-  }
-}
-
-/// The screen that shows a list of persons in a family.
-class FamilyScreen extends StatelessWidget {
-  /// Creates a [FamilyScreen].
-  const FamilyScreen({required this.fid, required this.asc, super.key});
-
-  /// The family to display.
-  final String fid;
-
-  /// Whether to sort the name in ascending order.
-  final bool asc;
-
-  @override
-  Widget build(BuildContext context) {
-    final Map<String, String> newQueries;
-    final List<String> names = _families[fid]!
-        .people
-        .values
-        .map<String>((Person p) => p.name)
-        .toList();
-    names.sort();
-    if (asc) {
-      newQueries = const <String, String>{'sort': 'desc'};
-    } else {
-      newQueries = const <String, String>{'sort': 'asc'};
-    }
-    return Scaffold(
-      appBar: AppBar(
-        title: Text(_families[fid]!.name),
-        actions: <Widget>[
-          IconButton(
-            onPressed: () => context.goNamed('family',
-                pathParameters: <String, String>{'fid': fid},
-                queryParameters: newQueries),
-            tooltip: 'sort ascending or descending',
-            icon: const Icon(Icons.sort),
-          )
-        ],
-      ),
-      body: ListView(
-        children: <Widget>[
-          for (final String name in asc ? names : names.reversed)
-            ListTile(
-              title: Text(name),
-            ),
-        ],
-      ),
-    );
-  }
-}

lib/13/go/raw_book/main.dart

@@ -1,27 +0,0 @@
-// Copyright 2021, the Flutter project authors. Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'dart:io' show Platform;
-
-import 'package:flutter/foundation.dart' show kIsWeb;
-import 'package:flutter/material.dart';
-import 'package:url_strategy/url_strategy.dart';
-// import 'package:window_size/window_size.dart';
-
-import 'src/app.dart';
-
-void main() {
-  // Use package:url_strategy until this pull request is released:
-  // https://github.com/flutter/flutter/pull/77103
-
-  // Use to setHashUrlStrategy() to use "/#/" in the address bar (default). Use
-  // setPathUrlStrategy() to use the path. You may need to configure your web
-  // server to redirect all paths to index.html.
-  //
-  // On mobile platforms, both functions are no-ops.
-  setHashUrlStrategy();
-  // setPathUrlStrategy();
-  runApp(const Bookstore());
-}
-

lib/13/go/raw_book/src/app.dart

@@ -1,81 +0,0 @@
-// Copyright 2021, the Flutter project authors. Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:flutter/material.dart';
-
-import 'auth.dart';
-import 'routing.dart';
-import 'screens/navigator.dart';
-
-class Bookstore extends StatefulWidget {
-  const Bookstore({super.key});
-
-  @override
-  State<Bookstore> createState() => _BookstoreState();
-}
-
-class _BookstoreState extends State<Bookstore> {
-  late final RouteState _routeState;
-  late final SimpleRouterDelegate _routerDelegate;
-  late final TemplateRouteParser _routeParser;
-
-  @override
-  void initState() {
-    /// Configure the parser with all of the app's allowed path templates.
-    _routeParser = TemplateRouteParser(
-      allowedPaths: [
-        '/signin',
-        '/authors',
-        '/settings',
-        '/books/new',
-        '/books/all',
-        '/books/popular',
-        '/book/:bookId',
-        '/author/:authorId',
-      ],
-      initialRoute: '/signin',
-    );
-
-    _routeState = RouteState(_routeParser);
-
-    _routerDelegate = SimpleRouterDelegate(
-      routeState: _routeState,
-    );
-
-
-    super.initState();
-  }
-
-  @override
-  Widget build(BuildContext context) => RouteStateScope(
-        notifier: _routeState,
-        child: MaterialApp.router(
-            routerDelegate: _routerDelegate,
-            routeInformationParser: _routeParser,
-            // Revert back to pre-Flutter-2.5 transition behavior:
-            // https://github.com/flutter/flutter/issues/82053
-            theme: ThemeData(
-              useMaterial3: true,
-              pageTransitionsTheme: const PageTransitionsTheme(
-                builders: {
-                  TargetPlatform.android: FadeUpwardsPageTransitionsBuilder(),
-                  TargetPlatform.iOS: CupertinoPageTransitionsBuilder(),
-                  TargetPlatform.linux: FadeUpwardsPageTransitionsBuilder(),
-                  TargetPlatform.macOS: CupertinoPageTransitionsBuilder(),
-                  TargetPlatform.windows: FadeUpwardsPageTransitionsBuilder(),
-                },
-              ),
-            ),
-
-        ),
-      );
-
-
-  @override
-  void dispose() {
-    _routeState.dispose();
-    _routerDelegate.dispose();
-    super.dispose();
-  }
-}

lib/13/go/raw_book/src/auth.dart

@@ -1,47 +0,0 @@
-// // Copyright 2021, the Flutter project authors. Please see the AUTHORS file
-// // for details. All rights reserved. Use of this source code is governed by a
-// // BSD-style license that can be found in the LICENSE file.
-//
-// import 'package:flutter/widgets.dart';
-//
-// /// A mock authentication service
-// class BookstoreAuth extends ChangeNotifier {
-//   bool _signedIn = false;
-//
-//   bool get signedIn => _signedIn;
-//
-//   Future<void> signOut() async {
-//     await Future<void>.delayed(const Duration(milliseconds: 200));
-//     // Sign out.
-//     _signedIn = false;
-//     notifyListeners();
-//   }
-//
-//   Future<bool> signIn(String username, String password) async {
-//     await Future<void>.delayed(const Duration(milliseconds: 200));
-//
-//     // Sign in. Allow any password.
-//     _signedIn = true;
-//     notifyListeners();
-//     return _signedIn;
-//   }
-//
-//   @override
-//   bool operator ==(Object other) =>
-//       other is BookstoreAuth && other._signedIn == _signedIn;
-//
-//   @override
-//   int get hashCode => _signedIn.hashCode;
-// }
-//
-// class BookstoreAuthScope extends InheritedNotifier<BookstoreAuth> {
-//   const BookstoreAuthScope({
-//     required super.notifier,
-//     required super.child,
-//     super.key,
-//   });
-//
-//   static BookstoreAuth of(BuildContext context) => context
-//       .dependOnInheritedWidgetOfExactType<BookstoreAuthScope>()!
-//       .notifier!;
-// }

lib/13/go/raw_book/src/data.dart

@@ -1,7 +0,0 @@
-// Copyright 2021, the Flutter project authors. Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-export 'data/author.dart';
-export 'data/book.dart';
-export 'data/library.dart';

lib/13/go/raw_book/src/data/author.dart

@@ -1,13 +0,0 @@
-// Copyright 2021, the Flutter project authors. Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'book.dart';
-
-class Author {
-  final int id;
-  final String name;
-  final books = <Book>[];
-
-  Author(this.id, this.name);
-}