HarmonyOS 鸿蒙Next使用相机picker拍照显示黑屏

使用系统的相机picker(Camera Picker)，换取的相机是黑屏状态；

代码为:

import { common } from '@kit.AbilityKit';

import { camera, cameraPicker } from '@kit.CameraKit';

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

let context = getContext(this) as common.Context;

async function startCameraPicker() {

  try {

    let pickerProfile: cameraPicker.PickerProfile = {

      cameraPosition: camera.CameraPosition.CAMERA_POSITION_BACK

    };

    let pickerResult: cameraPicker.PickerResult = await cameraPicker.pick(context,

      [cameraPicker.PickerMediaType.PHOTO, cameraPicker.PickerMediaType.VIDEO], pickerProfile);

    console.log("the pick pickerResult is:" + JSON.stringify(pickerResult));

  } catch (error) {

    let err = error as BusinessError;

    console.error(`the pick call failed. error code: ${err.code}`);

  }

}

@Entry

@Component

struct StartCameraPickerView {

  build() {

    Column() {

      Button("点击拉起相机")

        .onClick(() => startCameraPicker())

    }

    .width("100%")

    .height("100%")

    .justifyContent(FlexAlign.Center)

    .alignItems(HorizontalAlign.Center)

  }

}