We Will Create A Blank Screen Called UserProfile

import 'package:flutter/cupertino.dart';

class UserProfile extends StatefulWidget {
  const UserProfile({super.key});

  @override
  State<UserProfile> createState() => _UserProfileState();
}

class _UserProfileState extends State<UserProfile> {
  @override
  Widget build(BuildContext context) {
    return const Placeholder();
  }
}

We will go to Home Screen And Create A Navigation Link From the Drawer

Container(
              child: GestureDetector(
                onTap: () {
                  Navigator.push(context,
                      MaterialPageRoute(builder: (context) => UserProfile()));
                },
                child: Container(
                  alignment: Alignment.centerLeft,
                  margin: EdgeInsets.only(left: 20, top: 30),
                  child: Text(
                    '> My profile',
                    style: TextStyle(color: Colors.white, fontSize: 20),
                  ),
                ),
              ),
            ),

Now we will go to the Register Screen and copy the necessary codes & Paste it in Our Profile Screen

//For the UI
 return Scaffold(
      body: SingleChildScrollView(
        child: Column(
            children: [
              SizedBox(height: 200,),
              Container(
                alignment: Alignment.center,
                child: Text('Register For Free', style: TextStyle(fontSize: 25),),
              ),
              SizedBox(height: 20,),
              Padding(
                padding: const EdgeInsets.all(8.0),
                child: TextFormField(
                  controller: _userNameController,
                  decoration: InputDecoration(
                    labelText: 'Username',
                    border: OutlineInputBorder(),
                  ),
                ),
              ),

              Padding(
                padding: const EdgeInsets.all(8.0),
                child: TextFormField(
                  controller: _userEmailController,
                  decoration: InputDecoration(
                    labelText: 'Email',
                    border: OutlineInputBorder(),
                  ),
                ),
              ),
              Padding(
                padding: const EdgeInsets.all(8.0),
                child: TextFormField(
                  controller: _userMobileController,
                  decoration: InputDecoration(
                    labelText: 'Mobile',
                    border: OutlineInputBorder(),
                  ),
                ),
              ),
              Padding(
                padding: const EdgeInsets.all(8.0),
                child: TextFormField(
                  controller: _userPasswordController,
                  obscureText: true,
                  decoration: InputDecoration(
                    labelText: 'Password',
                    border: OutlineInputBorder(),
                  ),
                ),
              ),
              SizedBox(height: 20),
              ElevatedButton(
                onPressed: _registerUser,
                child: Text('Register'),
              ),
            ],
        ),
      ),

    );

//Create the controllers and functions
TextEditingController _userNameController = TextEditingController();
  TextEditingController _userEmailController = TextEditingController();
  TextEditingController _userMobileController = TextEditingController();
  TextEditingController _userPasswordController = TextEditingController();


  Future<void> _registerUser() async {
    String apiUrl = 'https://aboutassam.in/flutter_app/api/register.php';
    try {
      var response = await http.post(Uri.parse(apiUrl), body: {
        'user_name': _userNameController.text,
        'user_email': _userEmailController.text,
        'user_mobile': _userMobileController.text,
        'user_password': _userPasswordController.text,
      });

      var responseData = json.decode(response.body);
      if (responseData['success']) {
        // Registration successful, handle navigation or any other action
        print('Registration successful');
      } else {
        // Registration failed, show error message
        print('Registration failed: ${responseData['message']}');
      }
    } catch (e) {
      print('Error registering user: $e');
    }
  }

We will next go to the Checkout Screen, copy relevant codes, and paste them in our User Profile Screen

 

  @override
  void initState() {
    super.initState();

    _getUserInfo();
  }
  Future<void> _getUserInfo() async {
    try {
      SharedPreferences prefs = await SharedPreferences.getInstance();
      String usermobile = prefs.getString('userMobile') ?? ''; // Get user email

      if (usermobile.isEmpty) {
        Navigator.push(
          context,
          MaterialPageRoute(
            builder: (context) => LoginScreen(),
          ),
        );
      } else {
        setState(() {
          userMobile = usermobile;
        });
      }
      ;
    } catch (error) {
      print('Error retrieving user info: $error');
    }
  }

//We will slightly modify the codes to the following
Future<void> _getUserInfo() async {
    try {

      SharedPreferences prefs = await SharedPreferences.getInstance();

      String userMobile = prefs.getString('userMobile') ?? ''; // Get user mobile

      setState(() {
        _userMobileController.text = userMobile;


      });

    } catch (error) {
      print('Error retrieving user info: $error');
    }
  }