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* Feature: Biometric lock for app resume User enables "Biometric Lock" in Settings → prompted to verify fingerprint/face first. User backgrounds the app → _isLocked = true. User returns → lock screen appears, auto-triggers biometric prompt. Success → app unlocks, state preserved underneath. Can retry or log out as fallback. Add USE_BIOMETRIC permission to AndroidManifest. * Fix: Remove duplicate local_auth entry in pubspec.lock and add NSFaceIDUsageDescription to iOS Info.plist * fix(mobile) : Remove duplicate local auth files first * fix(mobile): keep MainNavigationScreen in the Stack, let the lock screen float above, no unmounting * Updtae: Swap out Flutter Activity for FlutterFragmentActivity that extends the lock scan feature * fix(mobile): address biometric lock PR review feedback * fix(mobile): only require biometric auth when enabling lock, not disabling Prevents users from getting locked out if biometrics start failing — they can now disable the lock without needing to pass biometric auth. * fix(mobile): add missing closing brace in setBiometricEnabled --------- Signed-off-by: Tristan Katana <50181095+felixmuinde@users.noreply.github.com>
100 lines
2.9 KiB
Dart
100 lines
2.9 KiB
Dart
import 'package:flutter/material.dart';
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import '../services/biometric_service.dart';
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class BiometricLockScreen extends StatefulWidget {
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const BiometricLockScreen({
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super.key,
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required this.onUnlocked,
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this.onLogout,
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});
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final VoidCallback onUnlocked;
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final VoidCallback? onLogout;
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@override
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State<BiometricLockScreen> createState() => _BiometricLockScreenState();
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}
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class _BiometricLockScreenState extends State<BiometricLockScreen> {
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bool _isAuthenticating = false;
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@override
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void initState() {
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super.initState();
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// Auto-trigger biometric prompt on first show.
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WidgetsBinding.instance.addPostFrameCallback((_) => _authenticate());
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}
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Future<void> _authenticate() async {
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if (!mounted || _isAuthenticating) return;
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setState(() => _isAuthenticating = true);
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final success = await BiometricService.instance.authenticate();
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if (!mounted) return;
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setState(() => _isAuthenticating = false);
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if (success) {
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widget.onUnlocked();
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} else {
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ScaffoldMessenger.of(context).showSnackBar(
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const SnackBar(content: Text('Authentication failed. Tap Unlock to try again.')),
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);
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}
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}
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@override
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Widget build(BuildContext context) {
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final colorScheme = Theme.of(context).colorScheme;
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return Scaffold(
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body: Center(
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child: Padding(
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padding: const EdgeInsets.symmetric(horizontal: 32),
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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Icon(
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Icons.lock_outline,
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size: 72,
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color: colorScheme.primary,
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),
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const SizedBox(height: 24),
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Text(
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'App Locked',
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style: Theme.of(context).textTheme.headlineSmall?.copyWith(
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fontWeight: FontWeight.w600,
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),
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),
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const SizedBox(height: 8),
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Text(
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'Authenticate to continue',
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style: TextStyle(color: colorScheme.onSurfaceVariant),
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),
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const SizedBox(height: 40),
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FilledButton.icon(
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onPressed: _isAuthenticating ? null : _authenticate,
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icon: const Icon(Icons.fingerprint),
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label: Text(_isAuthenticating ? 'Authenticating…' : 'Unlock'),
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style: FilledButton.styleFrom(
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minimumSize: const Size(200, 50),
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(12),
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),
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),
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),
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if (widget.onLogout != null) ...[
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const SizedBox(height: 16),
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TextButton(
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onPressed: widget.onLogout,
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child: const Text('Log out'),
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),
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],
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],
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),
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),
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),
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);
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}
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}
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