fix

lib/fluent/app.dart

@@ -1,8 +1,11 @@
 import 'package:fluent_ui/fluent_ui.dart';
+
+// import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:momo/fluent/login.dart';
 import 'package:momo/fluent/router.dart';
 import 'package:momo/provider/token.dart';
+import 'package:shared_preferences/shared_preferences.dart';
 
 class MyFluentApp extends ConsumerWidget {
   const MyFluentApp({Key? key}) : super(key: key);
@@ -10,16 +13,31 @@ class MyFluentApp extends ConsumerWidget {
   @override
   Widget build(BuildContext context, WidgetRef ref) {
     final String token = ref.watch(tokenProvider);
-    return token.isNotEmpty
-        ? FluentApp.router(
-            routeInformationParser:
-                MyFluentRouterConfig.router.routeInformationParser,
-            routerDelegate: MyFluentRouterConfig.router.routerDelegate,
-            color: Colors.blue,
-          )
-        : FluentApp(
-            color: Colors.blue,
-            home: LoginPage(),
-          );
+    Future<String?> loadToken() async {
+      final prefs = await SharedPreferences.getInstance();
+      String? tk = await prefs.getString("token");
+      return tk;
+    }
+
+    return FutureBuilder(
+        future: loadToken(),
+        builder: (BuildContext context, AsyncSnapshot<String?> snapshot) {
+          if (snapshot.connectionState == ConnectionState.done) {
+            MyFluentRouterConfig myFluentRouterConfig =
+                MyFluentRouterConfig(snapshot.data);
+            return FluentApp.router(
+              routeInformationParser:
+                  myFluentRouterConfig.router.routeInformationParser,
+              routerDelegate: myFluentRouterConfig.router.routerDelegate,
+              color: Colors.blue,
+            );
+          } else {
+            return const FluentApp(
+              home: ScaffoldPage(
+                content: Placeholder(),
+              ),
+            );
+          }
+        });
   }
 }