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lib/02/03/router1/router1.dart

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+import 'package:flutter/material.dart';
+
+import '../../../common/pages/stl_color_page.dart';
+import '../pages/color_add_page.dart';
+import '../pages/empty_page.dart';
+import '../pages/home_page.dart';
+
+class Router1 {
+
+  /// 主页面 [HomePage]
+  static const String kHome = '/';
+
+  /// 颜色详情页 [StlColorPage]
+  static const String kColorDetail = '${kHome}color_detail';
+
+  /// 添加颜色页 [ColorAddPage]
+  static const String kAddColor = '${kHome}add_color';
+
+
+  static String get initialRoute => kHome;
+
+  static final GlobalKey<NavigatorState> globalNavKey = GlobalKey();
+
+  static NavigatorState get nav => globalNavKey.currentState!;
+
+  /// 路由映射 [字符串 --> 组件构造器]
+  static Map<String, WidgetBuilder> get routeMap => {
+        kHome: (ctx) => const HomePage(),
+        kAddColor: (ctx) => const ColorAddPage(),
+  };
+
+  /// 根据路由配置 [settings] 创建路由
+  static Route? onGenerateRoute(RouteSettings settings) {
+    String? name = settings.name;
+    Widget? child;
+    if (name == kColorDetail) {
+      Color color = settings.arguments as Color;
+      child = StlColorPage(color: color);
+    }
+
+    if (child != null) {
+      return MaterialPageRoute(
+        builder: (ctx) => child!,
+        settings: settings,
+      );
+    }
+    return null;
+  }
+
+  static Route? onUnknownRoute(RouteSettings settings) {
+    return MaterialPageRoute(
+      builder: (ctx) => const EmptyPage(),
+      settings: settings,
+    );
+  }
+}