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feat(scanner): polish detection feedback and main collection behavior

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- Replace noisy no-id snackbars with in-screen red status feedback
- Keep success state green and reduce interruption during scan flow
- Make scan-tab collection switching session-only (does not overwrite main)
- Keep main collection preselected from collections tab preference
- Apply recent UX text/layout polish for scan and detail actions
This commit is contained in:
Lukas Müllner 2026-03-04 13:44:55 +01:00
parent 4fbea2c1e4
commit 1be830b16f
7 changed files with 82 additions and 50 deletions
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20
lib/main.dart
View file

@ -19,6 +19,9 @@ Future<void> main() async {
await Supabase.initialize(
url: _supabaseUrl,
anonKey: _supabaseAnonKey,
authOptions: const FlutterAuthClientOptions(
authFlowType: AuthFlowType.implicit,
),
);
runApp(const Car64App());
@ -33,10 +36,18 @@ final scaffoldMessengerKey = GlobalKey<ScaffoldMessengerState>();
/// Show a snackbar safely through the global key.
void showGlobalSnackBar(String message, {bool isError = false}) {
scaffoldMessengerKey.currentState?.showSnackBar(
final messenger = scaffoldMessengerKey.currentState;
if (messenger == null) return;
messenger
..hideCurrentSnackBar()
..showSnackBar(
SnackBar(
content: Text(message),
backgroundColor: isError ? Colors.red : null,
behavior: SnackBarBehavior.floating,
margin: const EdgeInsets.fromLTRB(16, 0, 16, 96),
duration: const Duration(seconds: 3),
),
);
}
@ -78,6 +89,7 @@ class AuthGate extends StatefulWidget {
class _AuthGateState extends State<AuthGate> {
bool _isLoading = true;
bool _isInPasswordRecoveryFlow = false;
Session? _session;
String? _lastEnsuredUserId;
@ -103,6 +115,7 @@ class _AuthGateState extends State<AuthGate> {
_ensureDefaultCollectionIfNeeded();
if (authState.event == AuthChangeEvent.passwordRecovery) {
setState(() => _isInPasswordRecoveryFlow = true);
_showResetPasswordDialog();
}
},
@ -132,6 +145,10 @@ class _AuthGateState extends State<AuthGate> {
barrierDismissible: false,
builder: (_) => const _ResetPasswordDialog(),
);
if (mounted) {
setState(() => _isInPasswordRecoveryFlow = false);
}
}
@override
@ -141,6 +158,7 @@ class _AuthGateState extends State<AuthGate> {
body: Center(child: CircularProgressIndicator()),
);
}
if (_isInPasswordRecoveryFlow) return const LoginScreen();
return _session != null ? const HomeShell() : const LoginScreen();
}
}

38
lib/scanner_screen.dart
View file

@ -37,6 +37,7 @@ class _ScannerScreenState extends State<ScannerScreen> {
bool _cameraReady = false;
String? _lastDetected;
bool _scanAccepted = false;
bool _scanNotFound = false;
String _statusText = 'Ready to scan';
String? _activeCollectionId;
bool _autoScanEnabled = false;
@ -96,6 +97,7 @@ class _ScannerScreenState extends State<ScannerScreen> {
void _toggleAutoScan() {
setState(() {
_autoScanEnabled = !_autoScanEnabled;
_scanNotFound = false;
_statusText = _autoScanEnabled ? 'Auto scan enabled' : 'Auto scan paused';
});
}
@ -106,6 +108,7 @@ class _ScannerScreenState extends State<ScannerScreen> {
setState(() {
_isBusy = true;
_scanNotFound = false;
_statusText = 'Scanning…';
});
@ -133,18 +136,11 @@ class _ScannerScreenState extends State<ScannerScreen> {
await _submitDetected(found);
}
} else {
// Show all detected text so user knows what was seen.
final allText = recognized.blocks.map((b) => b.text).join('\n');
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(
content: Text(
allText.isEmpty
? 'No text detected — try again closer.'
: 'No HW ID found. Detected:\n$allText',
),
duration: const Duration(seconds: 4),
),
);
setState(() {
_scanAccepted = false;
_scanNotFound = true;
_statusText = 'No HW ID found';
});
}
} catch (e) {
if (!mounted) return;
@ -178,11 +174,17 @@ class _ScannerScreenState extends State<ScannerScreen> {
setState(() {
_lastDetected = null;
_scanAccepted = true;
_scanNotFound = false;
_statusText = 'Saved. Ready for next scan';
});
Future<void>.delayed(const Duration(milliseconds: 650), () {
if (!mounted) return;
setState(() => _scanAccepted = false);
setState(() {
_scanAccepted = false;
if (_statusText == 'Saved. Ready for next scan') {
_statusText = 'Ready to scan';
}
});
});
} else {
Navigator.of(context).pop();
@ -253,6 +255,8 @@ class _ScannerScreenState extends State<ScannerScreen> {
padding: const EdgeInsets.symmetric(horizontal: 14, vertical: 8),
color: _scanAccepted
? AppColors.success.withValues(alpha: 0.12)
: _scanNotFound
? AppColors.error.withValues(alpha: 0.14)
: Colors.black.withValues(alpha: 0.55),
child: Row(
children: [
@ -261,7 +265,11 @@ class _ScannerScreenState extends State<ScannerScreen> {
_statusText,
textAlign: TextAlign.center,
style: TextStyle(
color: _scanAccepted ? AppColors.success : Colors.white,
color: _scanAccepted
? AppColors.success
: _scanNotFound
? AppColors.error
: Colors.white,
fontSize: 12,
fontWeight: FontWeight.w600,
),
@ -308,6 +316,8 @@ class _ScannerScreenState extends State<ScannerScreen> {
border: Border.all(
color: (_scanAccepted
? AppColors.success
: _scanNotFound
? AppColors.error
: AppColors.orange)
.withValues(alpha: 0.9),
width: 2.5,

8
lib/screens/collections_screen.dart
View file

@ -172,7 +172,7 @@ class CollectionsScreenState extends State<CollectionsScreen> {
await prefs.setString(_activeCollectionPrefKey, collectionId);
if (!mounted) return;
setState(() => _activeCollectionId = collectionId);
showGlobalSnackBar('Active scan collection set.');
showGlobalSnackBar('Main collection set for scanning.');
}
@override
@ -419,7 +419,7 @@ class _CollectionCard extends StatelessWidget {
borderRadius: BorderRadius.circular(6),
),
child: const Text(
'Active',
'Main',
style: TextStyle(
fontSize: 11,
fontWeight: FontWeight.w600,
@ -436,7 +436,9 @@ class _CollectionCard extends StatelessWidget {
Column(
children: [
IconButton(
tooltip: isActive ? 'Already active for scan' : 'Set active for scan',
tooltip: isActive
? 'Already main collection'
: 'Make main collection',
icon: Icon(
isActive ? Icons.my_location : Icons.location_searching,
color: isActive ? AppColors.success : AppColors.textHint,

17
lib/screens/garage_screen.dart
View file

@ -655,16 +655,21 @@ class GarageScreenState extends State<GarageScreen> {
child: ElevatedButton.icon(
onPressed: () => _editCar(car, context),
icon: const Icon(Icons.edit, size: 18),
label: const Text('Edit Details'),
label: const Text('Edit'),
),
),
const SizedBox(width: 8),
Expanded(
],
),
const SizedBox(height: 8),
SizedBox(
width: double.infinity,
child: OutlinedButton.icon(
onPressed: () => _deleteCar(car, context),
icon: const Icon(Icons.delete_outline, color: AppColors.error),
label: const Text('Remove',
style: TextStyle(color: AppColors.error)),
label: const Text(
'Remove',
style: TextStyle(color: AppColors.error),
),
style: OutlinedButton.styleFrom(
side: const BorderSide(color: AppColors.error),
),
@ -672,8 +677,6 @@ class GarageScreenState extends State<GarageScreen> {
),
],
),
],
),
),
);
}

7
lib/screens/home_shell.dart
View file

@ -15,8 +15,6 @@ class _HomeShellState extends State<HomeShell> {
int _currentIndex = 0;
final _collectionsKey = GlobalKey<CollectionsScreenState>();
final _scanKey = GlobalKey<ScanTabState>();
final Map<int, DateTime> _lastRefreshed = {};
static const _refreshDebounce = Duration(seconds: 30);
late final List<Widget> _pages = <Widget>[
CollectionsScreen(key: _collectionsKey),
@ -26,10 +24,7 @@ class _HomeShellState extends State<HomeShell> {
void _onTabSelected(int i) {
setState(() => _currentIndex = i);
final now = DateTime.now();
final last = _lastRefreshed[i];
if (last != null && now.difference(last) < _refreshDebounce) return;
_lastRefreshed[i] = now;
if (i == 0) {
_collectionsKey.currentState?.refresh();
} else if (i == 1) {

11
lib/screens/login_screen.dart
View file

@ -76,7 +76,7 @@ class _LoginScreenState extends State<LoginScreen>
try {
await supabase.auth.resetPasswordForEmail(
email,
redirectTo: 'hwcollector://login',
redirectTo: 'hwcollector://login/recovery',
);
showGlobalSnackBar('Password reset email sent! Check your inbox.');
} on AuthException catch (e) {
@ -134,12 +134,19 @@ class _LoginScreenState extends State<LoginScreen>
width: 2,
),
),
child: const Icon(
child: Padding(
padding: const EdgeInsets.all(14),
child: Image.asset(
'assets/img/icon_bg_removed.png',
fit: BoxFit.contain,
errorBuilder: (context, error, stackTrace) => const Icon(
Icons.directions_car_filled,
size: 44,
color: Colors.white,
),
),
),
),
const SizedBox(height: 16),
const Text(
'CAR64',

9
lib/screens/scan_tab.dart
View file

@ -156,7 +156,7 @@ class ScanTabState extends State<ScanTab> {
))
.toList(),
onChanged: (id) {
_setActiveCollection(id);
_setSelectedCollection(id);
},
),
),
@ -227,15 +227,12 @@ class ScanTabState extends State<ScanTab> {
);
}
Future<void> _setActiveCollection(String? id) async {
void _setSelectedCollection(String? id) {
if (id == null) return;
final matching = _collections.where((c) => c.id == id);
if (matching.isEmpty) return;
setState(() => _selectedCollection = matching.first);
final prefs = await SharedPreferences.getInstance();
await prefs.setString(_activeCollectionPrefKey, id);
}
Future<void> _openScanner() async {
@ -244,7 +241,7 @@ class ScanTabState extends State<ScanTab> {
builder: (_) => ScannerScreen(
collections: _collections,
activeCollectionId: _selectedCollection?.id,
onCollectionChanged: _setActiveCollection,
onCollectionChanged: _setSelectedCollection,
onDetected: (hwId) => _processHwId(hwId),
),
),