如何从渐进式web应用程序获取设备信息

const userAgent = navigator.userAgent;

navigator.mediaDevices.enumerateDevices()
  .then(devices => {
    const cameras = devices.filter(device => device.kind === 'videoinput');
    // cameras即为摄像头设备列表
  })
  .catch(error => {
    console.error('Error accessing media devices:', error);
  });

if ('Accelerometer' in window) {
  const sensor = new Accelerometer();
  sensor.addEventListener('reading', () => {
    console.log('Acceleration along X-axis: ', sensor.x);
    console.log('Acceleration along Y-axis: ', sensor.y);
    console.log('Acceleration along Z-axis: ', sensor.z);
  });
  sensor.start();
} else {
  console.error('Accelerometer not supported');
}

navigator.bluetooth.requestDevice({ filters: [{ services: ['heart_rate'] }] })
  .then(device => {
    console.log('Device name: ', device.name);
    console.log('Device ID: ', device.id);
  })
  .catch(error => {
    console.error('Error accessing Bluetooth device:', error);
  });