completed the mobile app for he boss to review the stock report

boss_app2/lib/page/before_login.dart

@@ -0,0 +1,74 @@
+// ignore_for_file: avoid_void_async
+
+// import 'package:boss_app/page/boss/index.dart';
+// import 'package:boss_app/page/login.dart';
+// import 'package:boss_app/page/superadmin/index.dart';
+import 'package:boss_app2/page/boss/index.dart';
+import 'package:boss_app2/page/login.dart';
+import 'package:boss_app2/page/superadmin/index.dart';
+import 'package:flutter/material.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+
+class BeforeLogin extends StatefulWidget {
+  const BeforeLogin({Key? key}) : super(key: key);
+
+  @override
+  _BeforeLoginState createState() => _BeforeLoginState();
+}
+
+class _BeforeLoginState extends State<BeforeLogin> {
+  //shared prefs
+  late SharedPreferences sharedPreferences;
+  int _loading = 0;
+
+  @override
+  void didChangeDependencies() async {
+    super.didChangeDependencies();
+    sharedPreferences = await SharedPreferences.getInstance();
+    final level = sharedPreferences.getString('level');
+
+    if (level == null) {
+      sharedPreferences.remove('level');
+      sharedPreferences.remove('data');
+      setState(() {
+        _loading = 3;
+      });
+    }
+    if (level == 'Superadmin') {
+      setState(() {
+        _loading = 1;
+      });
+    }
+    if (level == 'Boss') {
+      setState(() {
+        _loading = 2;
+      });
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    late Widget retVal;
+    switch (_loading) {
+      case 0:
+        retVal = Scaffold(
+          appBar: AppBar(
+            title: const Text("Loading"),
+          ),
+          body: const Center(child: CircularProgressIndicator()),
+        );
+        break;
+      case 1:
+        retVal = const SuperadminIndex();
+        break;
+      case 2:
+        retVal = BossIndex();
+        break;
+      case 3:
+        retVal = Login();
+        break;
+    }
+
+    return retVal;
+  }
+}