pd-android-app/lib/widgets/my_drawer.dart

import 'package:cheminova/controller/home_controller.dart';
import 'package:cheminova/models/user_model.dart';
import 'package:cheminova/screens/authentication/change_password_screen.dart';
import 'package:cheminova/screens/authentication/login_screen.dart';
import 'package:cheminova/screens/authentication/profile_screen.dart';
import 'package:cheminova/screens/home_screen.dart';
import 'package:flutter/material.dart';
import 'package:get/get.dart';

class MyDrawer extends StatefulWidget {
  final UserModel? userModel;

  MyDrawer({super.key, this.userModel});

  @override
  State<MyDrawer> createState() => _MyDrawerState();
}

class _MyDrawerState extends State<MyDrawer> {
  final homecontroller = Get.put(HomeController());
  @override
  Widget build(BuildContext context) {
    final user = homecontroller.user;
    return Drawer(
      child: ListView(
        padding: EdgeInsets.zero,
        children: <Widget>[
          SizedBox(
            height: 150,
            child: DrawerHeader(
              decoration: const BoxDecoration(
                color: Colors.black87,
              ),
              child: Column(
                crossAxisAlignment: CrossAxisAlignment.start,
                mainAxisAlignment: MainAxisAlignment.start,
                children: [
                  Text(
                    user!.name ?? "username",
                    style: const TextStyle(
                      color: Colors.white,
                      fontSize: 18,
                    ),
                  ),
                  Text(
                    user!.uniqueId ?? 'Employee ID',
                    style: const TextStyle(
                      color: Colors.white,
                      fontSize: 20,
                    ),
                  ),
                ],
              ),
            ),
          ),
          ListTile(
            leading: const Icon(Icons.home),
            title: const Text('Home'),
            onTap: () {
              Navigator.pushAndRemoveUntil(
                context,
                MaterialPageRoute(builder: (context) => const HomeScreen()),
                    (route) => false,
              );
            },
          ),
          ListTile(
            leading: const Icon(Icons.account_circle),
            title: const Text('Profile'),
            onTap: () {
              Navigator.push(
                context,
                MaterialPageRoute(builder: (context) => ProfileScreen()),
              );
            },
          ),
          ListTile(
            leading: const Icon(Icons.settings),
            title: const Text('Change Password'),
            onTap: () {
              Navigator.push(
                context,
                MaterialPageRoute(builder: (context) => ChangePasswordScreen()),
              );
            },
          ),
          ListTile(
            leading: const Icon(Icons.exit_to_app),
            title: const Text('Logout'),
            onTap: () {
              logoutBox(context);
            },
          ),
        ],
      ),
    );
  }
}

Future logoutBox(BuildContext context) {
  Size size = MediaQuery.of(context).size;
  return showDialog(
    context: context,
    builder: (BuildContext context) {
      return AlertDialog(
        shape: RoundedRectangleBorder(
          borderRadius: BorderRadius.circular(6.0),
        ),
        backgroundColor: Colors.white,
        alignment: Alignment.center,
        title: const Text('Are you sure you want to log out?'),
        titleTextStyle: const TextStyle(
            fontSize: 20, fontWeight: FontWeight.w400, color: Colors.black),
        actionsAlignment: MainAxisAlignment.center,
        actionsPadding: const EdgeInsets.only(left: 10, right: 10, bottom: 20),
        actions: [
          Row(
            children: [
              Expanded(
                child: SizedBox(
                  height: (size.height / 50.52) * 2,
                  child: ElevatedButton(
                    style: ButtonStyle(
                      elevation: MaterialStateProperty.all(0),
                      backgroundColor: MaterialStateProperty.all<Color>(
                          Colors.black),
                      shape: MaterialStateProperty.all<RoundedRectangleBorder>(
                          RoundedRectangleBorder(
                            borderRadius: BorderRadius.circular(6.0),
                          )),
                    ),
                    onPressed: () async {
                      Navigator.pop(context);
                    },
                    child: const Text(
                      "No",
                      style: TextStyle(
                          fontSize: 17,
                          color: Colors.white,
                          fontWeight: FontWeight.w500),
                    ),
                  ),
                ),
              ),
              const SizedBox(width: 5),
              Expanded(
                child: SizedBox(
                  height: (size.height / 50.52) * 2,
                  child: ElevatedButton(
                    style: ButtonStyle(
                      elevation: MaterialStateProperty.all(0),
                      backgroundColor:
                      MaterialStateProperty.all<Color>(Colors.white),
                      shape:
                      MaterialStateProperty.all<RoundedRectangleBorder>(
                          RoundedRectangleBorder(
                              borderRadius: BorderRadius.circular(6.0),
                              side: const BorderSide(
                                  color: Colors.purple, width: 1))),
                    ),
                    onPressed: () async {
                      Navigator.pushAndRemoveUntil(
                        context,
                        MaterialPageRoute(
                            builder: (context) => LoginScreen()),
                            (route) => false,
                      );
                    },
                    child: const Text(
                      "Yes",
                      style: TextStyle(
                          fontSize: 17,
                          color: Colors.purple,
                          fontWeight: FontWeight.w500),
                    ),
                  ),
                ),
              ),
            ],
          )
        ],
      );
    },
  );
}