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feat: added csv functionalities in accelerometer screen. #2820

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Merged
merged 6 commits into from
Aug 16, 2025
Merged

feat: added csv functionalities in accelerometer screen. #2820

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a9ac266
accelerometer csv support
Yugesh-Kumar-S Aug 7, 2025
cfe46fb
removed hardcoded string
Yugesh-Kumar-S Aug 7, 2025
55a8e6f
fix
Yugesh-Kumar-S Aug 7, 2025
851d11b
Merge branch 'flutter' into accelerometer-csv
Yugesh-Kumar-S Aug 10, 2025
7c80840
formatted file
Yugesh-Kumar-S Aug 10, 2025
105266c
Merge branch 'flutter' into accelerometer-csv
marcnause Aug 16, 2025
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39 changes: 39 additions & 0 deletions lib/providers/accelerometer_state_provider.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,7 @@ import 'package:flutter/material.dart';
import 'package:pslab/others/logger_service.dart';
import 'package:sensors_plus/sensors_plus.dart';
import 'package:flutter/foundation.dart';
import 'package:intl/intl.dart';

class AccelerometerStateProvider extends ChangeNotifier {
AccelerometerEvent _accelerometerEvent =
Expand All @@ -22,6 +23,9 @@ class AccelerometerStateProvider extends ChangeNotifier {
double _xMin = 0, _xMax = 0;
double _yMin = 0, _yMax = 0;
double _zMin = 0, _zMax = 0;
bool _isRecording = false;
List<List<dynamic>> _recordedData = [];
bool get isRecording => _isRecording;

void initializeSensors() {
_accelerometerSubscription = accelerometerEventStream().listen(
Expand Down Expand Up @@ -53,6 +57,19 @@ class AccelerometerStateProvider extends ChangeNotifier {
final x = _accelerometerEvent.x;
final y = _accelerometerEvent.y;
final z = _accelerometerEvent.z;
if (_isRecording) {
final now = DateTime.now();
final dateFormat = DateFormat('yyyy-MM-dd HH:mm:ss.SSS');
_recordedData.add([
now.millisecondsSinceEpoch.toString(),
dateFormat.format(now),
x.toStringAsFixed(6),
y.toStringAsFixed(6),
z.toStringAsFixed(6),
0,
0
]);
}

_xData.add(x);
_yData.add(y);
Expand Down Expand Up @@ -82,6 +99,28 @@ class AccelerometerStateProvider extends ChangeNotifier {
notifyListeners();
}

void startRecording() {
_isRecording = true;
_recordedData = [
[
'Timestamp',
'DateTime',
'ReadingsX',
'ReadingsY',
'ReadingsZ',
'Latitude',
'Longitude'
]
];
notifyListeners();
}

List<List<dynamic>> stopRecording() {
_isRecording = false;
notifyListeners();
return _recordedData;
}

List<FlSpot> getAxisData(String axis) {
switch (axis) {
case 'x':
Expand Down
179 changes: 152 additions & 27 deletions lib/view/accelerometer_screen.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -6,9 +6,12 @@ import 'package:pslab/view/widgets/guide_widget.dart';
import 'package:pslab/providers/accelerometer_state_provider.dart';
import 'package:pslab/view/widgets/common_scaffold_widget.dart';
import 'package:pslab/view/widgets/accelerometer_card.dart';
import 'package:pslab/others/csv_service.dart';
import 'package:pslab/view/logged_data_screen.dart';

import '../providers/accelerometer_config_provider.dart';
import '../theme/colors.dart';
import '../constants.dart';
import 'accelerometer_config_screen.dart';

class AccelerometerScreen extends StatefulWidget {
Expand All @@ -22,6 +25,27 @@ class _AccelerometerScreenState extends State<AccelerometerScreen> {
AppLocalizations appLocalizations = getIt.get<AppLocalizations>();
bool _showGuide = false;
static const imagePath = 'assets/images/bh1750_schematic.png';
final CsvService _csvService = CsvService();
late AccelerometerStateProvider _provider;

@override
void initState() {
super.initState();
_provider = AccelerometerStateProvider();
WidgetsBinding.instance.addPostFrameCallback((_) {
if (mounted) {
_provider.initializeSensors();
}
});
}

@override
void dispose() {
_provider.disposeSensors();
_provider.dispose();
super.dispose();
}

void _showInstrumentGuide() {
setState(() {
_showGuide = true;
Expand Down Expand Up @@ -80,7 +104,7 @@ class _AccelerometerScreenState extends State<AccelerometerScreen> {
if (value != null) {
switch (value) {
case 'show_logged_data':
// TODO
_navigateToLoggedData();
break;
case 'accelerometer_config':
_navigateToConfig();
Expand All @@ -90,6 +114,19 @@ class _AccelerometerScreenState extends State<AccelerometerScreen> {
});
}

Future<void> _navigateToLoggedData() async {
await Navigator.push(
context,
MaterialPageRoute(
builder: (context) => LoggedDataScreen(
instrumentName: 'accelerometer',
appBarName: appLocalizations.accelerometer,
instrumentIcon: instrumentIcons[7],
),
),
);
}

void _navigateToConfig() {
Navigator.push(
context,
Expand All @@ -102,36 +139,124 @@ class _AccelerometerScreenState extends State<AccelerometerScreen> {
);
}

Future<void> _toggleRecording() async {
if (_provider.isRecording) {
final data = _provider.stopRecording();
await _showSaveFileDialog(data);
} else {
_provider.startRecording();
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(
content: Text(
'${appLocalizations.recordingStarted}...',
style: TextStyle(color: snackBarContentColor),
),
backgroundColor: snackBarBackgroundColor,
),
);
}
}

Future<void> _showSaveFileDialog(List<List<dynamic>> data) async {
final TextEditingController filenameController = TextEditingController();
final String defaultFilename = '';
filenameController.text = defaultFilename;

final String? fileName = await showDialog<String>(
context: context,
builder: (context) {
return AlertDialog(
title: Text(appLocalizations.saveRecording),
content: TextField(
controller: filenameController,
decoration: InputDecoration(
hintText: appLocalizations.enterFileName,
labelText: appLocalizations.fileName,
),
),
actions: [
TextButton(
onPressed: () => Navigator.pop(context),
child: Text(appLocalizations.cancel.toUpperCase()),
),
ElevatedButton(
onPressed: () {
Navigator.pop(context, filenameController.text);
},
child: Text(appLocalizations.save),
),
],
);
},
);

if (fileName != null) {
_csvService.writeMetaData('accelerometer', data);
final file =
await _csvService.saveCsvFile('accelerometer', fileName, data);
if (mounted) {
if (file != null) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(
content: Text(
'${appLocalizations.fileSaved}: ${file.path.split('/').last}',
style: TextStyle(color: snackBarContentColor),
),
backgroundColor: snackBarBackgroundColor,
),
);
} else {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(
content: Text(
appLocalizations.failedToSave,
style: TextStyle(color: snackBarContentColor),
),
backgroundColor: snackBarBackgroundColor,
),
);
}
}
}
}

@override
Widget build(BuildContext context) {
return MultiProvider(
providers: [
ChangeNotifierProvider<AccelerometerStateProvider>(
create: (_) => AccelerometerStateProvider()..initializeSensors(),
),
],
return ChangeNotifierProvider<AccelerometerStateProvider>.value(
value: _provider,
child: Stack(children: [
CommonScaffold(
title: appLocalizations.accelerometerTitle,
onGuidePressed: _showInstrumentGuide,
onOptionsPressed: _showOptionsMenu,
body: SafeArea(
Consumer<AccelerometerStateProvider>(
builder: (context, provider, child) {
return CommonScaffold(
title: appLocalizations.accelerometerTitle,
onGuidePressed: _showInstrumentGuide,
onOptionsPressed: _showOptionsMenu,
onRecordPressed: _toggleRecording,
isRecording: provider.isRecording,
body: SafeArea(
child: Column(
children: [
Expanded(
child: AccelerometerCard(
color: xOrientationChartLineColor,
axis: appLocalizations.xAxis)),
Expanded(
child: AccelerometerCard(
color: yOrientationChartLineColor,
axis: appLocalizations.yAxis)),
Expanded(
child: AccelerometerCard(
color: zOrientationChartLineColor,
axis: appLocalizations.zAxis)),
],
))),
children: [
Expanded(
child: AccelerometerCard(
color: xOrientationChartLineColor,
axis: appLocalizations.xAxis),
),
Expanded(
child: AccelerometerCard(
color: yOrientationChartLineColor,
axis: appLocalizations.yAxis),
),
Expanded(
child: AccelerometerCard(
color: zOrientationChartLineColor,
axis: appLocalizations.zAxis),
),
],
),
),
);
},
),
if (_showGuide)
InstrumentOverviewDrawer(
instrumentName: appLocalizations.accelerometer,
Expand Down
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