申请权限ohos.permission.CAMERA以使用相机时，可以用camera picker替代，不用申请权限吗？

import picker from '@ohos.multimedia.cameraPicker'; 
import camera from '@ohos.multimedia.camera'; 
import common from '@ohos.app.ability.common'; 
import { BusinessError } from '@ohos.base'; 
 
 
@Entry 
@Component 
struct Index { 
  mContext = getContext(this) as common.Context; 
 
  async demo() { 
    try { 
      let pickerProfile: picker.PickerProfile = { 
        cameraPosition: camera.CameraPosition.CAMERA_POSITION_BACK 
      }; 
      let pickerResult: picker.PickerResult = await picker.pick(this.mContext, 
        [picker.PickerMediaType.PHOTO, picker.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}`); 
    } 
  } 
 
  @State message: string = 'Hello World'; 
 
  build() { 
    Row() { 
      Column() { 
        Button(this.message) 
          .onClick(()=>{ 
            this.demo() 
          }) 
 
      } 
      .width('100%') 
    } 
    .height('100%') 
  } 
}