sensor_flutter 1.0.5

A Flutter Project to access all android.hardware sensors

example/lib/main.dart

import 'package:flutter/material.dart';
import 'package:vector_math/vector_math_64.dart' hide Colors;
import 'package:sensor_flutter/sensor_flutter.dart';
import 'package:permission_handler/permission_handler.dart';

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

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

  @override
  _MyAppState createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  final Vector3 _accelerometer = Vector3.zero();
  final Vector3 _gyroscope = Vector3.zero();
  final Vector3 _uncalibratedGyroscope = Vector3.zero();
  final Vector3 _gravity = Vector3.zero();
  final Vector3 _magnetometer = Vector3.zero();
  final Vector3 _uncalibratedMagnetometer = Vector3.zero();
  double _pressure = 0.0;
  List<double> _gameRotation = [0, 0, 0, 0, 0, 0, 0, 0, 0];
  List<double> _rotation = [0, 0, 0, 0, 0, 0, 0, 0, 0];
  final Vector3 _linearAcceleration = Vector3.zero();
  LocationEvent _location = LocationEvent(0.0, 0.0, 0.0, 0.0);

  int? _groupValue = 0;

  @override
  void initState() {
    super.initState();
    hardwareSensors.gyroscope.listen((GyroscopeEvent event) {
      setState(() {
        _gyroscope.setValues(event.x, event.y, event.z);
      });
    });
    hardwareSensors.uncalibratedGyroscope
        .listen((UncalibratedGyroscopeEvent event) {
      setState(() {
        _uncalibratedGyroscope.setValues(event.x, event.y, event.z);
      });
    });
    hardwareSensors.accelerometer.listen((AccelerometerEvent event) {
      setState(() {
        _accelerometer.setValues(event.x, event.y, event.z);
      });
    });
    hardwareSensors.gravity.listen((GravityEvent event) {
      setState(() {
        _gravity.setValues(event.x, event.y, event.z);
      });
    });
    hardwareSensors.magnetometer.listen((MagnetometerEvent event) {
      setState(() {
        _magnetometer.setValues(event.x, event.y, event.z);
      });
    });
    hardwareSensors.uncalibratedMagnetometer
        .listen((UncalibratedMagnetometerEvent event) {
      setState(() {
        _uncalibratedMagnetometer.setValues(event.x, event.y, event.z);
      });
    });
    hardwareSensors.pressure.listen((PressureEvent event) {
      setState(() {
        _pressure = event.x;
      });
    });
    hardwareSensors.isGameRotationAvailable().then((available) {
      if (available) {
        hardwareSensors.gameRotaion.listen((GameRotationEvent event) {
          setState(() {
            _gameRotation = event.matrix;
          });
        });
      }
    });
    hardwareSensors.rotation.listen((RotationEvent event) {
      setState(() {
        _rotation = event.matrix;
      });
    });
    hardwareSensors.linearAcceleration.listen((LinearAccelerationEvent event) {
      setState(() {
        _linearAcceleration.setValues(event.x, event.y, event.z);
      });
    });

    asynInitState(); //set up location stream after async permission check
  }

  void asynInitState() async {
    bool locationServiceEnabled =
        await Permission.location.serviceStatus.isEnabled;
    if (!locationServiceEnabled) {
      print("App init: no location service found on this device");
      return;
    }

    var locationPermissionStatus = await Permission.location.status;
    var granted = locationPermissionStatus.isGranted;
    if (!granted) {
      granted = await Permission.location.request().isGranted;
      if (!granted) {
        print("User has chosen not to permit use of location service");
        return;
      }
    }

    hardwareSensors.location.listen((LocationEvent event) {
      // hardwareSensors.location.listen((LocationEvent event) {
      setState(() {
        _location = event;
      });
    });
  }

  void setUpdateInterval(int? groupValue, int interval) {
    hardwareSensors.accelerometerUpdateInterval = interval;
    hardwareSensors.gyroscopeUpdateInterval = interval;
    hardwareSensors.uncalibratedGyroscopeUpdateInterval = interval;
    hardwareSensors.gravityUpdateInterval = interval;
    hardwareSensors.magnetometerUpdateInterval = interval;
    hardwareSensors.uncalibratedMagnetometerUpdateInterval = interval;
    hardwareSensors.pressureUpdateInterval = interval;
    hardwareSensors.gameRotationUpdateInterval = interval;
    hardwareSensors.rotationUpdateInterval = interval;
    hardwareSensors.linearAccelerationUpdateInterval = interval;

    setState(() {
      _groupValue = groupValue;
    });
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: const Text('Motion Sensors'),
        ),
        body: SingleChildScrollView(
          child: Column(
            mainAxisAlignment: MainAxisAlignment.center,
            children: <Widget>[
              const Text('Location'),
              Row(
                mainAxisAlignment: MainAxisAlignment.spaceEvenly,
                children: <Widget>[
                  Text(_location.lat.toStringAsFixed(5)),
                  Text(_location.long.toStringAsFixed(5)),
                ],
              ),
              Row(
                mainAxisAlignment: MainAxisAlignment.spaceEvenly,
                children: <Widget>[
                  Text(_location.elev.toStringAsFixed(5)),
                  Text(_location.acc.toStringAsFixed(5)),
                ],
              ),
              const Text('Linear Acceleration'),
              Row(
                mainAxisAlignment: MainAxisAlignment.spaceEvenly,
                children: <Widget>[
                  Text(_linearAcceleration.x.toStringAsFixed(4)),
                  Text(_linearAcceleration.y.toStringAsFixed(4)),
                  Text(_linearAcceleration.z.toStringAsFixed(4)),
                ],
              ),
              const Text('Game Rotaion'),
              Row(
                mainAxisAlignment: MainAxisAlignment.spaceEvenly,
                children: <Widget>[
                  Text(_gameRotation[0].toStringAsFixed(4)),
                  Text(_gameRotation[1].toStringAsFixed(4)),
                  Text(_gameRotation[2].toStringAsFixed(4)),
                ],
              ),
              const Text('Rotation'),
              Row(
                mainAxisAlignment: MainAxisAlignment.spaceEvenly,
                children: <Widget>[
                  Text(_rotation[0].toStringAsFixed(4)),
                  Text(_rotation[1].toStringAsFixed(4)),
                  Text(_rotation[2].toStringAsFixed(4)),
                ],
              ),
              const Text('Pressure'),
              Row(
                mainAxisAlignment: MainAxisAlignment.spaceEvenly,
                children: <Widget>[Text('$_pressure')],
              ),
              const Text('Accelerometer'),
              Row(
                mainAxisAlignment: MainAxisAlignment.spaceEvenly,
                children: <Widget>[
                  Text(_accelerometer.x.toStringAsFixed(4)),
                  Text(_accelerometer.y.toStringAsFixed(4)),
                  Text(_accelerometer.z.toStringAsFixed(4)),
                ],
              ),
              const Text('Gravity'),
              Row(
                mainAxisAlignment: MainAxisAlignment.spaceEvenly,
                children: <Widget>[
                  Text(_gravity.x.toStringAsFixed(4)),
                  Text(_gravity.y.toStringAsFixed(4)),
                  Text(_gravity.z.toStringAsFixed(4)),
                ],
              ),
              const Text('Gyroscope'),
              Row(
                mainAxisAlignment: MainAxisAlignment.spaceEvenly,
                children: <Widget>[
                  Text(_gyroscope.x.toStringAsFixed(4)),
                  Text(_gyroscope.y.toStringAsFixed(4)),
                  Text(_gyroscope.z.toStringAsFixed(4)),
                ],
              ),
              const Text('Uncalibrated Gyroscope'),
              Row(
                mainAxisAlignment: MainAxisAlignment.spaceEvenly,
                children: <Widget>[
                  Text(_uncalibratedGyroscope.x.toStringAsFixed(4)),
                  Text(_uncalibratedGyroscope.y.toStringAsFixed(4)),
                  Text(_uncalibratedGyroscope.z.toStringAsFixed(4)),
                ],
              ),
              const Text('Magnetometer'),
              Row(
                mainAxisAlignment: MainAxisAlignment.spaceEvenly,
                children: <Widget>[
                  Text(_magnetometer.x.toStringAsFixed(4)),
                  Text(_magnetometer.y.toStringAsFixed(4)),
                  Text(_magnetometer.z.toStringAsFixed(4)),
                ],
              ),
              const Text('Uncalibrated Magnetometer'),
              Row(
                mainAxisAlignment: MainAxisAlignment.spaceEvenly,
                children: <Widget>[
                  Text(_uncalibratedMagnetometer.x.toStringAsFixed(4)),
                  Text(_uncalibratedMagnetometer.y.toStringAsFixed(4)),
                  Text(_uncalibratedMagnetometer.z.toStringAsFixed(4)),
                ],
              ),
            ],
          ),
        ),
      ),
    );
  }
}