v3

lib/v1/app/navigation/app_router_delegate.dart

@@ -0,0 +1,114 @@
+import 'package:flutter/material.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 '../../transition/no_transition_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;
+
+  set path(String value) {
+    if (_path == value) return;
+    _path = value;
+    notifyListeners();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Navigator(
+      onPopPage: _onPopPage,
+      pages: _buildPageByPath(path),
+    );
+  }
+
+  List<Page> _buildPageByPath(String path) {
+    Widget? child;
+    if (path == kDestinationsPaths[0]) {
+      child = const ColorPage();
+    }
+    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(),
+      )
+    ];
+  }
+
+  @override
+  Future<bool> popRoute() async {
+    print('=======popRoute=========');
+    return true;
+  }
+
+  bool _onPopPage(Route route, result) {
+    return route.didPop(result);
+  }
+
+  @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{
+//   }
+// }