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Vidhijain20Vidhijain20
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feat: added Accelerometer screen (fossasia#2709)
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‎assets/images/phone_x_axis.png

23.1 KB
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‎assets/images/phone_y_axis.png

17.9 KB
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‎assets/images/phone_z_axis.png

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‎lib/constants.dart

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@@ -133,3 +133,11 @@ List<String> connectWithUs = [
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'Developers'
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];
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String softwareLicenses = 'Software Licenses';
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String accelerometer = 'Accelerometer';
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String xAxis = 'x';
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String yAxis = 'y';
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String zAxis = 'z';
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String timeAxisLabel = 'Time(s)';
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String accelerationAxisLabel = 'm/s²';
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String minValue = 'Min: ';
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String maxValue = 'Max: ';

‎lib/main.dart

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@@ -2,6 +2,7 @@ import 'package:flutter/material.dart';
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import 'package:provider/provider.dart';
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import 'package:pslab/providers/board_state_provider.dart';
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import 'package:pslab/providers/locator.dart';
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import 'package:pslab/view/accelerometer_screen.dart';
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import 'package:pslab/view/connect_device_screen.dart';
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import 'package:pslab/view/faq_screen.dart';
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import 'package:pslab/view/instruments_screen.dart';
@@ -49,6 +50,7 @@ class MyApp extends StatelessWidget {
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'/settings': (context) => const SettingsScreen(),
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'/aboutUs': (context) => const AboutUsScreen(),
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'/softwareLicenses': (context) => const SoftwareLicensesScreen(),
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'/accelerometer': (context) => const AccelerometerScreen(),
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},
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);
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}

‎lib/providers/accelerometer_state_provider.dart

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import 'dart:async';
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import 'dart:math';
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import 'package:fl_chart/fl_chart.dart';
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import 'package:flutter/material.dart';
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import 'package:pslab/others/logger_service.dart';
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import 'package:sensors_plus/sensors_plus.dart';
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import 'package:flutter/foundation.dart';
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class AccelerometerStateProvider extends ChangeNotifier {
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AccelerometerEvent _accelerometerEvent =
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AccelerometerEvent(0, 0, 0, DateTime.now());
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StreamSubscription? _accelerometerSubscription;
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final List<double> _xData = [];
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final List<double> _yData = [];
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final List<double> _zData = [];
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final List<FlSpot> xData = [];
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final List<FlSpot> yData = [];
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final List<FlSpot> zData = [];
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final int _maxLength = 50;
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double _xMin = 0, _xMax = 0;
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double _yMin = 0, _yMax = 0;
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double _zMin = 0, _zMax = 0;
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void initializeSensors() {
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_accelerometerSubscription = accelerometerEventStream().listen(
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(event) {
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_accelerometerEvent = event;
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_updateData();
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notifyListeners();
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},
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onError: (error) {
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logger.e(
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"Accelerometer error: $error",
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);
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},
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cancelOnError: true,
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);
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}
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void disposeSensors() {
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_accelerometerSubscription?.cancel();
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}
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@override
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void dispose() {
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disposeSensors();
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super.dispose();
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}
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void _updateData() {
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final x = _accelerometerEvent.x;
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final y = _accelerometerEvent.y;
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final z = _accelerometerEvent.z;
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_xData.add(x);
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_yData.add(y);
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_zData.add(z);
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if (_xData.length > _maxLength) _xData.removeAt(0);
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if (_yData.length > _maxLength) _yData.removeAt(0);
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if (_zData.length > _maxLength) _zData.removeAt(0);
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_xMin = _xData.reduce(min);
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_xMax = _xData.reduce(max);
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_yMin = _yData.reduce(min);
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_yMax = _yData.reduce(max);
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_zMin = _zData.reduce(min);
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_zMax = _zData.reduce(max);
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xData.clear();
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yData.clear();
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zData.clear();
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for (int i = 0; i < _xData.length; i++) {
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xData.add(FlSpot(i.toDouble(), _xData[i]));
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yData.add(FlSpot(i.toDouble(), _yData[i]));
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zData.add(FlSpot(i.toDouble(), _zData[i]));
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}
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notifyListeners();
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}
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List<FlSpot> getAxisData(String axis) {
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switch (axis) {
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case 'x':
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return xData;
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case 'y':
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return yData;
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case 'z':
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return zData;
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default:
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return [];
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}
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}
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double getMin(String axis) {
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switch (axis) {
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case 'x':
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return _xMin;
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case 'y':
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return _yMin;
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case 'z':
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return _zMin;
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default:
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return 0.0;
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}
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}
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double getMax(String axis) {
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switch (axis) {
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case 'x':
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return _xMax;
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case 'y':
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return _yMax;
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case 'z':
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return _zMax;
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default:
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return 0.0;
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}
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}
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double getCurrent(String axis) {
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switch (axis) {
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case 'x':
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return _accelerometerEvent.x;
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case 'y':
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return _accelerometerEvent.y;
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case 'z':
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return _accelerometerEvent.z;
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default:
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return 0.0;
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}
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}
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int getDataLength(String axis) {
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switch (axis) {
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case 'x':
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return xData.length;
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case 'y':
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return yData.length;
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case 'z':
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return zData.length;
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default:
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return 0;
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}
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}
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}

‎lib/view/accelerometer_screen.dart

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import 'package:flutter/material.dart';
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import 'package:provider/provider.dart';
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import 'package:pslab/constants.dart';
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import 'package:pslab/providers/accelerometer_state_provider.dart';
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import 'package:pslab/view/widgets/common_scaffold_widget.dart';
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import 'package:pslab/view/widgets/accelerometer_card.dart';
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class AccelerometerScreen extends StatefulWidget {
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const AccelerometerScreen({super.key});
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@override
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State<StatefulWidget> createState() => _AccelerometerScreenState();
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}
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class _AccelerometerScreenState extends State<AccelerometerScreen> {
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@override
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Widget build(BuildContext context) {
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return MultiProvider(
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providers: [
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ChangeNotifierProvider<AccelerometerStateProvider>(
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create: (_) => AccelerometerStateProvider()..initializeSensors(),
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),
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],
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child: CommonScaffold(
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title: accelerometer,
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body: SafeArea(
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child: Column(
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children: [
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Expanded(
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child: AccelerometerCard(color: Colors.yellow, axis: xAxis)),
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Expanded(
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child: AccelerometerCard(color: Colors.purple, axis: yAxis)),
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Expanded(
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child: AccelerometerCard(color: Colors.green, axis: zAxis)),
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],
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))),
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);
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}
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}

‎lib/view/instruments_screen.dart

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@@ -26,6 +26,17 @@ class _InstrumentsScreenState extends State<InstrumentsScreen> {
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(route) => route.isFirst,
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);
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}
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case 7:
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if (Navigator.canPop(context) &&
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ModalRoute.of(context)?.settings.name == '/accelerometer') {
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Navigator.popUntil(context, ModalRoute.withName('/accelerometer'));
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} else {
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Navigator.pushNamedAndRemoveUntil(
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context,
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'/accelerometer',
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(route) => route.isFirst,
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);
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}
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break;
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default:
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break;

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