增加开屏广告界面和逻辑，更改抽屉设置界面的颜色

lib/bloc/adv_cubit.dart

+import 'dart:async';
+
+import 'package:appframe/config/routes.dart';
+import 'package:equatable/equatable.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+
+class AdvState extends Equatable {
+  final int countdown;
+
+  const AdvState({this.countdown = 5});
+
+  AdvState copyWith({
+    int? countdown,
+  }) {
+    return AdvState(
+      countdown: countdown ?? this.countdown,
+    );
+  }
+
+  @override
+  List<Object?> get props => [countdown];
+}
+
+class AdvCubit extends Cubit<AdvState> {
+  Timer? _timer;
+
+  AdvCubit() : super(AdvState()) {
+    _startCountdown();
+  }
+
+  void _startCountdown() {
+    var count = state.countdown;
+    _timer = Timer.periodic(Duration(seconds: 1), (timer) {
+      count--;
+      if (count <= 0) {
+        _timer?.cancel();
+        router.go('/web');
+      } else {
+        emit(state.copyWith(countdown: count));
+      }
+    });
+  }
+
+  @override
+  Future<void> close() {
+    try {
+      _timer?.cancel();
+    } catch (e) {
+      print(e);
+    }
+    return super.close();
+  }
+}

lib/config/routes.dart

+import 'package:appframe/ui/pages/adv_page.dart';
 import 'package:appframe/ui/pages/link_page.dart';
 import 'package:appframe/ui/pages/login_main_page.dart';
 import 'package:appframe/ui/pages/login_phone_page.dart';
@@ -8,7 +9,7 @@ import 'package:flutter/material.dart';
 import 'package:go_router/go_router.dart';
 
 final GoRouter router = GoRouter(
-  initialLocation: '/web',
+  initialLocation: '/adv',
   routes: <RouteBase>[
     GoRoute(
       path: '/web',
@@ -46,5 +47,11 @@ final GoRouter router = GoRouter(
         return const LoginPhonePage();
       },
     ),
+    GoRoute(
+      path: '/adv',
+      builder: (BuildContext context, GoRouterState state) {
+        return const AdvPage();
+      },
+    ),
   ],
 );

lib/ui/pages/adv_page.dart

+import 'package:appframe/bloc/adv_cubit.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+
+class AdvPage extends StatelessWidget {
+  const AdvPage({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return BlocProvider(
+      create: (context) => AdvCubit(),
+      child: BlocConsumer<AdvCubit, AdvState>(
+          builder: (context, state) {
+            return Scaffold(
+              appBar: AppBar(
+                title: Text(''),
+              ),
+              // body: Center(
+              //   child: Text(
+              //     '${state.countdown}',
+              //     style: TextStyle(fontSize: 50),
+              //   ),
+              // ),
+              body: Stack(children: [
+                Center(
+                  child: GestureDetector(
+                      onTap: () {
+                        ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text('点击了开屏广告')));
+                      },
+                      child: Text(
+                        '开屏广告',
+                        style: TextStyle(fontSize: 50),
+                      )),
+                ),
+                Positioned(
+                  bottom: 30,
+                  right: 30,
+                  child: Container(
+                    width: 36,
+                    height: 36,
+                    decoration: BoxDecoration(
+                      shape: BoxShape.circle,
+                      color: Color(0xFF7691FA),
+                    ),
+                    child: Center(
+                      child: Text(
+                        '${state.countdown}',
+                        style: TextStyle(fontSize: 20, color: Colors.white),
+                      ),
+                    ),
+                  ),
+                ),
+              ]),
+            );
+          },
+          listener: (context, state) {}),
+    );
+  }
+}

lib/ui/pages/web_page.dart

@@ -139,7 +139,7 @@ class WebPage extends StatelessWidget {
                     //           fontSize: 24,
                     //         ))),
                     ListTile(
-                      tileColor: Theme.of(ctx).colorScheme.primary,
+                      tileColor: Color(0xFF7691FA),
                       title: Text('设置',
                           style: TextStyle(
                             color: Theme.of(ctx).colorScheme.onPrimary,