sc-android-app/lib/screens/change_password_screen.dart
2024-09-29 22:09:36 +05:30

192 lines
10 KiB
Dart

import 'package:cheminova/provider/change_password_provider.dart';
import 'package:cheminova/provider/login_provider.dart';
import 'package:cheminova/screens/password_change_screen.dart';
import 'package:cheminova/widgets/common_app_bar.dart';
import 'package:cheminova/widgets/common_background.dart';
import 'package:cheminova/widgets/common_elevated_button.dart';
import 'package:cheminova/widgets/common_text_form_field.dart';
import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
import '../widgets/common_drawer.dart';
import 'home_screen.dart';
class ChangePasswordPage extends StatefulWidget {
const ChangePasswordPage({super.key});
@override
State<ChangePasswordPage> createState() => _ChangePasswordPageState();
}
class _ChangePasswordPageState extends State<ChangePasswordPage> {
late ChangePasswordProvider changePasswordProvider; // Provider to manage state and logic
final _formKey = GlobalKey<FormState>(); // Form key to manage form validation
@override
void initState() {
changePasswordProvider = ChangePasswordProvider(); // Initialize the provider
super.initState();
}
@override
Widget build(BuildContext context) {
// Use ChangeNotifierProvider to listen to ChangePasswordProvider updates
return ChangeNotifierProvider<ChangePasswordProvider>(
create: (_) => changePasswordProvider,
builder: (context, child) {
return Stack( // Stack to manage overlay loading indicator
children: [
CommonBackground( // Custom background widget
isFullWidth: true,
child: Scaffold(
drawer: const CommonDrawer(), // Custom drawer widget
backgroundColor: Colors.transparent,
appBar: CommonAppBar(
title: const Text(''),
backgroundColor: Colors.transparent, // Transparent AppBar
elevation: 0,
actions: [
IconButton(
onPressed: () {
Navigator.pop(context); // Back button action
},
icon: Image.asset('assets/Back_attendance.png'),
padding: const EdgeInsets.only(right: 20),
),
],
),
body: SingleChildScrollView( // Scrollable form
child: Column(
children: [
Container(
padding: const EdgeInsets.all(20.0).copyWith(top: 15, bottom: 30),
margin: const EdgeInsets.symmetric(horizontal: 30.0),
decoration: BoxDecoration( // Styling for the form container
border: Border.all(color: Colors.white),
color: const Color(0xffB4D1E5).withOpacity(0.9),
borderRadius: BorderRadius.circular(26.0)),
child: Form( // Form widget to validate input fields
key: _formKey, // Reference to form state
child: Column(
mainAxisSize: MainAxisSize.min,
crossAxisAlignment: CrossAxisAlignment.start,
mainAxisAlignment: MainAxisAlignment.start,
children: <Widget>[
const SizedBox(height: 20),
const Text(
'Change Password',
style: TextStyle(
fontSize: 30,
color: Colors.black,
fontWeight: FontWeight.w500,
fontFamily: 'Roboto',
),
),
const SizedBox(height: 20),
// Old Password Field
Consumer<ChangePasswordProvider>(
builder: (context, value, child) =>
CommonTextFormField(
controller: value.oldPasswordController, // Old password controller
validator: (val) {
if (val == null || val.isEmpty) {
return 'Please enter your password'; // Validation for empty input
}
return null;
},
title: 'Old Password'),
),
const SizedBox(height: 20),
// New Password Field
Consumer<ChangePasswordProvider>(
builder: (context, value, child) =>
CommonTextFormField(
controller: value.newPasswordController, // New password controller
validator: (val) {
if (val == null || val.isEmpty) {
return 'Please enter your password'; // Validation for empty input
}
return null;
},
title: 'New Password'),
),
const SizedBox(height: 20),
// Confirm Password Field
Consumer<ChangePasswordProvider>(
builder: (context, value, child) =>
CommonTextFormField(
controller: value.confirmPasswordController, // Confirm password controller
validator: (val) {
if (val == null || val.isEmpty) {
return 'Please enter your password'; // Validation for empty input
} else if (val !=
value.newPasswordController.text) {
return 'Password does not match'; // Validation for mismatched password
}
return null;
},
title: 'Confirm Password'),
),
const SizedBox(height: 15),
// Submit button
Align(
alignment: Alignment.center,
child: Consumer<ChangePasswordProvider>(
builder: (context, value, child) =>
CommonElevatedButton(
backgroundColor: const Color(0xff004791), // Button styling
borderRadius: 30,
width: double.infinity,
height: kToolbarHeight - 10,
text: 'SIGN IN', // Button text
isLoading: false,
onPressed: value.isLoading
? null
: () async {
if (_formKey.currentState!.validate()) {
// If form is valid, proceed with password change
value.changePassword().then((result) {
var (status, message) = result;
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text(message))
); // Show success or error message
if (status) {
// Navigate to HomePage if password change is successful
Navigator.pushReplacement(
context,
MaterialPageRoute(
builder: (context) =>
const HomePage()));
}
});
}
},
),
),
)
],
),
),
),
],
),
)),
),
// Overlay loading indicator when processing
Consumer<ChangePasswordProvider>(
builder: (context, value, child) => value.isLoading
? Container(
color: Colors.black.withOpacity(0.5), // Overlay background
child: const Center(child: CircularProgressIndicator())) // Show loading indicator
: Container(),
)
],
);
});
}
}