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lib/13/go_color/main.dart

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

lib/13/go_color/pages/app.dart

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+import 'package:flutter/material.dart';
+import 'package:go_router/go_router.dart';
+import 'package:iroute/common/pages/stl_color_page.dart';
+import '../route/parser.dart';
+import 'home_page.dart';
+import 'color_add_page.dart';
+
+class App extends StatefulWidget {
+  const App({super.key});
+
+  @override
+  State<App> createState() => _AppState();
+}
+
+class _AppState extends State<App> {
+
+  GoRouter router = GoRouter(
+      initialLocation: '/color',
+      routes: <GoRoute>[
+        GoRoute(path: '/color',builder: (ctx,state)=>HomePage()),
+        GoRoute(path: '/color/detail',builder: (ctx,state) {
+          String selectedColor = state.uri.queryParameters['color']??'';
+          return StlColorPage(
+          color: Color(int.parse(selectedColor,radix: 16)),
+        );
+        }),
+        GoRoute(path: '/color/add',builder: (ctx,state)=>ColorAddPage()),
+      ]
+
+  );
+
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp.router(
+      routerConfig: router,
+      // 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/go_color/pages/color_add_page.dart

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+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/go_color/pages/home_page.dart

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+import 'package:flutter/material.dart';
+import 'package:go_router/go_router.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
+  void dispose() {
+    print('_HomePageState#dispose');
+    super.dispose();
+  }
+
+  @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);
+    context.push('/color/detail?color=$value');
+    context.go('/color/detail?color=$value');
+    // routerDelegate.go('/color/detail?color=$value');
+  }
+
+  void _toAddPage() async {
+    Color? color = await context.push<Color?>('/color/add');
+    if (color != null) {
+      setState(() {
+        _colors.add(color);
+      });
+    }
+  }
+}

lib/13/go_color/route/parsed_route.dart

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+// // 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/go_color/route/parser.dart

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+// 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));
+//   }
+// }
+//
+// ValueNotifier<List<String>> router = ValueNotifier(['/']);
+//
+// class AppRouterDelegate extends RouterDelegate<ParsedRoute>
+//     with ChangeNotifier, PopNavigatorRouterDelegateMixin {
+//
+//
+//   AppRouterDelegate({String initial='/'}) : _route = ParsedRoute(initial,{});
+//
+//   late ParsedRoute _route;
+//
+//   @override
+//   final GlobalKey<NavigatorState> navigatorKey = GlobalKey<NavigatorState>();
+//
+//   @override
+//   ParsedRoute get currentConfiguration {
+//     return _route;
+//   }
+//
+//   Future<void> go(String route) async {
+//     _route = await parser.parseRouteInformation(RouteInformation(uri: Uri.parse(route)));
+//     notifyListeners();
+//   }
+//
+//   @override
+//   void dispose() {
+//     super.dispose();
+//   }
+//
+//   final _addColorKey = const ValueKey('addColor');
+//
+//   @override
+//   Widget build(BuildContext context) {
+//
+//     List<Page> pages =[];
+//     final String path = _route.path;
+//
+//     pages.add(MaterialPage(child: HomePage()));
+//
+//     String? selectedColor;
+//     if (path.startsWith('/color/detail') ) {
+//       selectedColor = _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) {
+//           go('/');
+//         }
+//
+//         if(selectedColor!=null){
+//           selectedColor = null;
+//           go('/');
+//         }
+//         return route.didPop(result);
+//       },
+//     );
+//   }
+//
+//   @override
+//   Future<void> setNewRoutePath(ParsedRoute configuration) async {
+//     print("===setNewRoutePath===${configuration}=================");
+//     _route = configuration;
+//   }
+//
+// }

lib/13/go_color/route/route_state.dart

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+// // 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!;
+// // }