如何检查当前相机的状态

import { camera } from '@kit.CameraKit';
import { BusinessError } from '@kit.BasicServicesKit';

let cameraManager = camera.getCameraManager(getContext(this));
cameraManager.on('cameraStatus', (err: BusinessError, cameraStatusInfo: camera.CameraStatusInfo) => {
  console.log(`camera : ${cameraStatusInfo.camera.cameraId}`);
  console.log(`status: ${cameraStatusInfo.status}`);
});