sensors 0.4.0+1
sensors: ^0.4.0+1 copied to clipboard
Flutter plugin for accessing the Android and iOS accelerometer and gyroscope sensors.
// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'dart:async';
import 'package:flutter/material.dart';
import 'package:sensors/sensors.dart';
import 'snake.dart';
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Sensors Demo',
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: MyHomePage(title: 'Flutter Demo Home Page'),
);
}
}
class MyHomePage extends StatefulWidget {
MyHomePage({Key key, this.title}) : super(key: key);
final String title;
@override
_MyHomePageState createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
static const int _snakeRows = 20;
static const int _snakeColumns = 20;
static const double _snakeCellSize = 10.0;
List<double> _accelerometerValues;
List<double> _userAccelerometerValues;
List<double> _gyroscopeValues;
List<StreamSubscription<dynamic>> _streamSubscriptions =
<StreamSubscription<dynamic>>[];
@override
Widget build(BuildContext context) {
final List<String> accelerometer =
_accelerometerValues?.map((double v) => v.toStringAsFixed(1))?.toList();
final List<String> gyroscope =
_gyroscopeValues?.map((double v) => v.toStringAsFixed(1))?.toList();
final List<String> userAccelerometer = _userAccelerometerValues
?.map((double v) => v.toStringAsFixed(1))
?.toList();
return Scaffold(
appBar: AppBar(
title: const Text('Sensor Example'),
),
body: Column(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: <Widget>[
Center(
child: DecoratedBox(
decoration: BoxDecoration(
border: Border.all(width: 1.0, color: Colors.black38),
),
child: SizedBox(
height: _snakeRows * _snakeCellSize,
width: _snakeColumns * _snakeCellSize,
child: Snake(
rows: _snakeRows,
columns: _snakeColumns,
cellSize: _snakeCellSize,
),
),
),
),
Padding(
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: <Widget>[
Text('Accelerometer: $accelerometer'),
],
),
padding: const EdgeInsets.all(16.0),
),
Padding(
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: <Widget>[
Text('UserAccelerometer: $userAccelerometer'),
],
),
padding: const EdgeInsets.all(16.0),
),
Padding(
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: <Widget>[
Text('Gyroscope: $gyroscope'),
],
),
padding: const EdgeInsets.all(16.0),
),
],
),
);
}
@override
void dispose() {
super.dispose();
for (StreamSubscription<dynamic> subscription in _streamSubscriptions) {
subscription.cancel();
}
}
@override
void initState() {
super.initState();
_streamSubscriptions
.add(accelerometerEvents.listen((AccelerometerEvent event) {
setState(() {
_accelerometerValues = <double>[event.x, event.y, event.z];
});
}));
_streamSubscriptions.add(gyroscopeEvents.listen((GyroscopeEvent event) {
setState(() {
_gyroscopeValues = <double>[event.x, event.y, event.z];
});
}));
_streamSubscriptions
.add(userAccelerometerEvents.listen((UserAccelerometerEvent event) {
setState(() {
_userAccelerometerValues = <double>[event.x, event.y, event.z];
});
}));
}
}