zeba_academy_secure_auth 0.0.1

A secure Flutter authentication package with local PIN/Pattern, biometrics, offline login, session management, and root/jailbreak detection.

example/lib/main.dart

import 'package:flutter/material.dart';
import 'package:pattern_lock/pattern_lock.dart';
import 'package:zeba_academy_secure_auth/zeba_academy_secure_auth.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      title: 'Secure Auth Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
        inputDecorationTheme: const InputDecorationTheme(
          border: OutlineInputBorder(),
        ),
      ),
      home: const LoginScreen(),
    );
  }
}

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

  @override
  State<LoginScreen> createState() => _LoginScreenState();
}

class _LoginScreenState extends State<LoginScreen> {
  final _auth = SecureAuthService();
  final _pinController = TextEditingController();

  void _showSnack(String message, {bool success = true}) {
    ScaffoldMessenger.of(context).showSnackBar(
      SnackBar(
        content: Text(message),
        backgroundColor: success ? Colors.green : Colors.red,
        duration: const Duration(seconds: 2),
      ),
    );
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('Secure Auth Demo'),
        centerTitle: true,
        elevation: 2,
      ),
      body: SingleChildScrollView(
        padding: const EdgeInsets.all(16),
        child: Column(
          children: [
            // PIN Login Card
            Card(
              elevation: 4,
              shape: RoundedRectangleBorder(
                  borderRadius: BorderRadius.circular(12)),
              child: Padding(
                padding: const EdgeInsets.all(16),
                child: Column(
                  children: [
                    const Text(
                      'Login with PIN',
                      style:
                      TextStyle(fontSize: 18, fontWeight: FontWeight.bold),
                    ),
                    const SizedBox(height: 12),
                    TextField(
                      controller: _pinController,
                      keyboardType: TextInputType.number,
                      obscureText: true,
                      decoration: const InputDecoration(
                        labelText: 'Enter PIN',
                        prefixIcon: Icon(Icons.lock),
                      ),
                    ),
                    const SizedBox(height: 12),
                    ElevatedButton.icon(
                      onPressed: () async {
                        final success = await _auth.verifyPin(_pinController.text);
                        if (success) {
                          await _auth.startSession();
                          _showSnack('PIN verified!');
                        } else {
                          _showSnack('Incorrect PIN', success: false);
                        }
                      },
                      icon: const Icon(Icons.login),
                      label: const Text('Login'),
                      style: ElevatedButton.styleFrom(
                          minimumSize: const Size.fromHeight(40)),
                    ),
                  ],
                ),
              ),
            ),

            const SizedBox(height: 24),

            // Pattern Login Card
            Card(
              elevation: 4,
              shape: RoundedRectangleBorder(
                  borderRadius: BorderRadius.circular(12)),
              child: Padding(
                padding: const EdgeInsets.all(16),
                child: Column(
                  children: [
                    const Text(
                      'Login with Pattern',
                      style:
                      TextStyle(fontSize: 18, fontWeight: FontWeight.bold),
                    ),
                    const SizedBox(height: 12),
                    SizedBox(
                      height: 200,
                      child: PatternLock(
                        selectedColor: Colors.blue,
                        notSelectedColor: Colors.grey[300]!,
                        dimension: 3,
                        showInput: true,
                        onInputComplete: (pattern) async {
                          final patternString = pattern.join();
                          final success = await _auth.verifyPattern(patternString);
                          if (success) {
                            await _auth.startSession();
                            _showSnack('Pattern verified!');
                          } else {
                            _showSnack('Incorrect Pattern', success: false);
                          }
                        },
                      ),
                    ),
                  ],
                ),
              ),
            ),

            const SizedBox(height: 24),

            // Biometric Login Card
            Card(
              elevation: 4,
              shape: RoundedRectangleBorder(
                  borderRadius: BorderRadius.circular(12)),
              child: Padding(
                padding: const EdgeInsets.all(16),
                child: Column(
                  children: [
                    const Text(
                      'Login with Biometrics',
                      style:
                      TextStyle(fontSize: 18, fontWeight: FontWeight.bold),
                    ),
                    const SizedBox(height: 12),
                    ElevatedButton.icon(
                      onPressed: () async {
                        final success = await _auth.authenticateBiometric();
                        if (success) {
                          await _auth.startSession();
                          _showSnack('Biometric verified!');
                        } else {
                          _showSnack('Biometric failed', success: false);
                        }
                      },
                      icon: const Icon(Icons.fingerprint),
                      label: const Text('Login'),
                      style: ElevatedButton.styleFrom(
                          minimumSize: const Size.fromHeight(40)),
                    ),
                  ],
                ),
              ),
            ),
          ],
        ),
      ),
    );
  }
}