v6
This commit is contained in:
toly
154
lib/v6/app/navigation/router/app_router_delegate.dart
Normal file
154
lib/v6/app/navigation/router/app_router_delegate.dart
Normal file
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import 'dart:async';
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import 'package:flutter/material.dart';
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import 'iroute.dart';
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const List<String> kDestinationsPaths = [
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'/color',
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'/counter',
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'/user',
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'/settings',
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];
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AppRouterDelegate router = AppRouterDelegate();
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class AppRouterDelegate extends RouterDelegate<Object> with ChangeNotifier {
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String _path = '/color';
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String get path => _path;
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AppRouterDelegate() {
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// keepAlivePath.add('/color');
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}
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int? get activeIndex {
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if (path.startsWith('/color')) return 0;
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if (path.startsWith('/counter')) return 1;
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if (path.startsWith('/user')) return 2;
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if (path.startsWith('/settings')) return 3;
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return null;
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}
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final Map<String, Completer<dynamic>> _completerMap = {};
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Completer<dynamic>? completer;
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final Map<String, dynamic> _pathExtraMap = {};
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final List<String> keepAlivePath = [];
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FutureOr<dynamic> changePath(String value,
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{bool forResult = false, Object? extra, bool keepAlive = false}) {
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if (forResult) {
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_completerMap[value] = Completer();
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}
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if (keepAlive) {
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if (keepAlivePath.contains(value)) {
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keepAlivePath.remove(value);
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}
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keepAlivePath.add(value);
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}
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if (extra != null) {
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_pathExtraMap[value] = extra;
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}
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path = value;
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if (forResult) {
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return _completerMap[value]!.future;
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}
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}
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set path(String value) {
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if (_path == value) return;
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_path = value;
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notifyListeners();
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}
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@override
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Widget build(BuildContext context) {
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return Navigator(
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onPopPage: _onPopPage,
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pages: _buildPages(context, path),
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);
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}
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List<Page> _buildPages(BuildContext context,String path) {
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List<Page> pages = [];
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List<Page> topPages = _buildPageByPath(context,path);
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if (keepAlivePath.isNotEmpty) {
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for (String alivePath in keepAlivePath) {
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if (alivePath != path) {
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pages.addAll(_buildPageByPath(context,alivePath));
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}
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}
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/// 去除和 topPages 中重复的界面
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pages.removeWhere(
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(element) => topPages.map((e) => e.key).contains(element.key));
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}
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pages.addAll(topPages);
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return pages;
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}
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Page? _buildPageByPathFromTree(BuildContext context, String path) {
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// 1. 根据 path 在 iroute 树中查询节点
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IRoute? iroute = root.match(path);
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Object? extra = _pathExtraMap[path];
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bool keepAlive = keepAlivePath.contains(path);
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bool forResult = _completerMap.containsKey(path);
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Page? page;
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if (iroute != null) {
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page = iroute.builder?.call(
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context,
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IRouteData(
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uri: Uri.parse(path),
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extra: extra,
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keepAlive: keepAlive,
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forResult: forResult,
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),
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);
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}
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return page;
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}
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List<Page> _buildPageByPath(BuildContext context,String path) {
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List<Page> result = [];
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Uri uri = Uri.parse(path);
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String dist = '';
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for (String segment in uri.pathSegments) {
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dist += '/$segment';
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Page? page = _buildPageByPathFromTree(context,dist);
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if(page!=null){
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result.add(page);
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}
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}
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return result;
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}
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@override
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Future<bool> popRoute() async {
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print('=======popRoute=========');
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return true;
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}
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bool _onPopPage(Route route, result) {
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if (_completerMap.containsKey(path)) {
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_completerMap[path]?.complete(result);
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_completerMap.remove(path);
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}
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path = backPath(path);
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return route.didPop(result);
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}
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String backPath(String path) {
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Uri uri = Uri.parse(path);
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if (uri.pathSegments.length == 1) return path;
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List<String> parts = List.of(uri.pathSegments)..removeLast();
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return '/${parts.join('/')}';
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}
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@override
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Future<void> setNewRoutePath(configuration) async {}
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}
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131
lib/v6/app/navigation/router/iroute.dart
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131
lib/v6/app/navigation/router/iroute.dart
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@@ -0,0 +1,131 @@
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import 'package:flutter/material.dart';
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import '../../../pages/color/color_add_page.dart';
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import '../../../pages/color/color_detail_page.dart';
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import '../../../pages/color/color_page.dart';
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import '../../../pages/counter/counter_page.dart';
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import '../../../pages/user/user_page.dart';
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import '../../../pages/settings/settings_page.dart';
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import '../transition/fade_transition_page.dart';
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class IRoute {
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final String path;
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final IRoutePageBuilder? builder;
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final List<IRoute> children;
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const IRoute({
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required this.path,
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this.children = const [],
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this.builder,
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});
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@override
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String toString() {
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return 'IRoute{path: $path, children: $children}';
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}
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IRoute? match(String path) {
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return matchRoute(this, path);
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}
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IRoute? matchRoute(IRoute route, String path) {
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if (route.path == path) {
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return route;
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} else {
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if (route.children.isNotEmpty) {
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for (int i = 0; i < route.children.length; i++) {
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IRoute current = route.children[i];
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IRoute? target = matchRoute(current, path);
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if (target != null) {
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return target;
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}
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}
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} else {
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return null;
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}
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}
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return null;
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}
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}
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typedef IRoutePageBuilder = Page? Function(
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BuildContext context, IRouteData data);
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class IRouteData {
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final Object? extra;
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final bool forResult;
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final Uri uri;
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final bool keepAlive;
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IRouteData({
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this.extra,
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required this.uri,
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this.forResult = false,
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this.keepAlive = false,
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});
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}
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IRoute root = IRoute(path: '/', children: kDestinationsIRoutes);
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List<IRoute> kDestinationsIRoutes = [
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IRoute(
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path: '/color',
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builder: (ctx, data) {
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return const FadeTransitionPage(
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key: ValueKey('/color'),
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child: ColorPage(),
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);
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},
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children: [
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IRoute(
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path: '/color/detail',
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builder: (ctx, data) {
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final Map<String, String> queryParams = data.uri.queryParameters;
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String? selectedColor = queryParams['color'];
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Color color = Colors.black;
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if (selectedColor != null) {
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color = Color(int.parse(selectedColor, radix: 16));
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} else if (data.extra is Color) {
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color = data.extra as Color;
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}
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return FadeTransitionPage(
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key: const ValueKey('/color/detail'),
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child: ColorDetailPage(color: color),
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);
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},
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),
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IRoute(
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path: '/color/add',
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builder: (ctx, data) {
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return const FadeTransitionPage(
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key: ValueKey('/color/add'),
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child: ColorAddPage(),
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);
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}),
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],
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),
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IRoute(
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path: '/counter',
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builder: (ctx, data) {
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return const FadeTransitionPage(
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key: ValueKey('/counter'),
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child: CounterPage(),
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);
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}),
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IRoute(
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path: '/user',
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builder: (ctx, data) {
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return const FadeTransitionPage(
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key: ValueKey('/user'),
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child: UserPage(),
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);
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}),
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IRoute(
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path: '/settings',
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builder: (ctx, data) {
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return const FadeTransitionPage(
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key: ValueKey('/settings'),
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child: SettingPage(),
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);
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}),
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];
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