探秘React Native的全能传感器管理库：react-native-sensor-manager

import React from 'react';
import { Text, View } from 'react-native';
import { SensorManager } from 'react-native-sensor-manager';
 
export default class App extends React.Component {
  constructor(props) {
    super(props);
    this.state = {
      accelerometerData: 'Waiting for data...',
    };
  }
 
  componentDidMount() {
    SensorManager.startAccelerometer(SensorManager.SENSOR_INTERVAL_FASTEST).then(subscription => {
      this._accelerometerSubscription = subscription;
      this._accelerometerSubscription.onActivate(() => {
        console.log('Accelerometer activated');
      });
      this._accelerometerSubscription.onDeactivate(() => {
        console.log('Accelerometer deactivated');
      });
      this._accelerometerSubscription.onData((data) => {
        this.setState({
          accelerometerData: `x: ${data.x}, y: ${data.y}, z: ${data.z}`,
        });
      });
    }).catch(error => {
      console.error('Accelerometer error:', error);
    });
  }
 
  componentWillUnmount() {
    if (this._accelerometerSubscription) {
      this._accelerometerSubscription.remove();
      this._accelerometerSubscription = null;
    }
  }
 
  render() {
    return (
      <View style={{ flex: 1, justifyContent: 'center', alignItems: 'center' }}>
        <Text>{this.state.accelerometerData}</Text>
      </View>
    );
  }
}

这段代码展示了如何在React Native应用中使用react-native-sensor-manager库来监听加速度计数据。代码中使用了生命周期函数componentDidMount和componentWillUnmount来处理订阅的创建和清理，以及使用了函数组件而非类组件来简化代码结构。