galli_motion_sensors 是一个 Flutter 插件，用于访问设备的运动传感器数据，如加速度计、陀螺仪、磁力计等。它提供了一个简单易用的 API，使开发者能够轻松地获取设备的运动数据。

安装

首先，你需要在 pubspec.yaml 文件中添加 galli_motion_sensors 依赖：

dependencies:
  flutter:
    sdk: flutter
  galli_motion_sensors: ^0.1.0  # 请检查最新版本

然后运行 flutter pub get 来安装依赖。

使用

1. 导入包

import 'package:galli_motion_sensors/galli_motion_sensors.dart';

2. 初始化传感器

在使用传感器之前，你需要初始化它们。通常，你可以在 initState 方法中进行初始化。

[@override](/user/override)
void initState() {
  super.initState();
  galli_motion_sensors.initialize();
}

3. 监听传感器数据

你可以通过 galli_motion_sensors 提供的流来监听传感器数据。例如，监听加速度计数据：

StreamSubscription<AccelerometerEvent>? _accelerometerSubscription;

[@override](/user/override)
void initState() {
  super.initState();
  galli_motion_sensors.initialize();

  _accelerometerSubscription = galli_motion_sensors.accelerometer.listen((AccelerometerEvent event) {
    print('Accelerometer: x=${event.x}, y=${event.y}, z=${event.z}');
  });
}

[@override](/user/override)
void dispose() {
  _accelerometerSubscription?.cancel();
  super.dispose();
}

4. 其他传感器

类似地，你可以监听其他传感器的数据，如陀螺仪、磁力计等：

StreamSubscription<GyroscopeEvent>? _gyroscopeSubscription;
StreamSubscription<MagnetometerEvent>? _magnetometerSubscription;

[@override](/user/override)
void initState() {
  super.initState();
  galli_motion_sensors.initialize();

  _gyroscopeSubscription = galli_motion_sensors.gyroscope.listen((GyroscopeEvent event) {
    print('Gyroscope: x=${event.x}, y=${event.y}, z=${event.z}');
  });

  _magnetometerSubscription = galli_motion_sensors.magnetometer.listen((MagnetometerEvent event) {
    print('Magnetometer: x=${event.x}, y=${event.y}, z=${event.z}');
  });
}

[@override](/user/override)
void dispose() {
  _gyroscopeSubscription?.cancel();
  _magnetometerSubscription?.cancel();
  super.dispose();
}

5. 获取传感器可用性

你还可以检查设备是否支持某些传感器：

bool isAccelerometerAvailable = await galli_motion_sensors.isAccelerometerAvailable();
bool isGyroscopeAvailable = await galli_motion_sensors.isGyroscopeAvailable();
bool isMagnetometerAvailable = await galli_motion_sensors.isMagnetometerAvailable();

print('Accelerometer available: $isAccelerometerAvailable');
print('Gyroscope available: $isGyroscopeAvailable');
print('Magnetometer available: $isMagnetometerAvailable');

示例

以下是一个完整的示例，展示如何使用 galli_motion_sensors 插件来获取并显示加速度计、陀螺仪和磁力计的数据：

import 'package:flutter/material.dart';
import 'package:galli_motion_sensors/galli_motion_sensors.dart';

class SensorPage extends StatefulWidget {
  [@override](/user/override)
  _SensorPageState createState() => _SensorPageState();
}

class _SensorPageState extends State<SensorPage> {
  StreamSubscription<AccelerometerEvent>? _accelerometerSubscription;
  StreamSubscription<GyroscopeEvent>? _gyroscopeSubscription;
  StreamSubscription<MagnetometerEvent>? _magnetometerSubscription;

  String accelerometerData = 'Accelerometer: No data';
  String gyroscopeData = 'Gyroscope: No data';
  String magnetometerData = 'Magnetometer: No data';

  [@override](/user/override)
  void initState() {
    super.initState();
    galli_motion_sensors.initialize();

    _accelerometerSubscription = galli_motion_sensors.accelerometer.listen((AccelerometerEvent event) {
      setState(() {
        accelerometerData = 'Accelerometer: x=${event.x.toStringAsFixed(2)}, y=${event.y.toStringAsFixed(2)}, z=${event.z.toStringAsFixed(2)}';
      });
    });

    _gyroscopeSubscription = galli_motion_sensors.gyroscope.listen((GyroscopeEvent event) {
      setState(() {
        gyroscopeData = 'Gyroscope: x=${event.x.toStringAsFixed(2)}, y=${event.y.toStringAsFixed(2)}, z=${event.z.toStringAsFixed(2)}';
      });
    });

    _magnetometerSubscription = galli_motion_sensors.magnetometer.listen((MagnetometerEvent event) {
      setState(() {
        magnetometerData = 'Magnetometer: x=${event.x.toStringAsFixed(2)}, y=${event.y.toStringAsFixed(2)}, z=${event.z.toStringAsFixed(2)}';
      });
    });
  }

  [@override](/user/override)
  void dispose() {
    _accelerometerSubscription?.cancel();
    _gyroscopeSubscription?.cancel();
    _magnetometerSubscription?.cancel();
    super.dispose();
  }

  [@override](/user/override)
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Sensor Data'),
      ),
      body: Padding(
        padding: const EdgeInsets.all(16.0),
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.start,
          children: [
            Text(accelerometerData),
            Text(gyroscopeData),
            Text(magnetometerData),
          ],
        ),
      ),
    );
  }
}

void main() {
  runApp(MaterialApp(
    home: SensorPage(),
  ));
}