HarmonyOS 图片保存到相册报错？

Question

报这个错：photoAccessHelper getPhotoAccessHelper inner add createDeleteRequest

//这是代码：
const PERMISSIONS: Array<Permissions> = ['ohos.permission.READ_MEDIA', 'ohos.permission.WRITE_MEDIA'];

//获取权限
const context = getContext(this) as common.UIAbilityContext;
const atManager = abilityAccessCtrl.createAtManager();
await atManager.requestPermissionsFromUser(context, PERMISSIONS);

//保存图片
const context = getContext(this) as common.UIAbilityContext; // 获取getPhotoAccessHelper需要的context
const helper = photoAccessHelper.getPhotoAccessHelper(context); // 获取相册管理模块的实例
const uri = await helper.createAsset(photoAccessHelper.PhotoType.IMAGE, 'jpg'); // 指定待创建的文件类型、后缀和创建选项，创建图片或视频资源
const file = await fs.open(uri, fs.OpenMode.READ_WRITE | fs.OpenMode.CREATE);
await fs.write(file.fd, buffer);
await fs.close(file.fd);

Answer 1

示例参考如下：

import photoAccessHelper from '@ohos.file.photoAccessHelper';
import fs from '@ohos.file.fs';

@Entry
@Component
struct Index {
  build() {
    Row() {
      Column() {
        Image($r('app.media.startIcon')).height(300).width(300)
        SaveButton().onClick(async (event: ClickEvent, result: SaveButtonOnClickResult) => {
          if (result == SaveButtonOnClickResult.SUCCESS) {
            try {
              const context = getContext(this);
              let helper =
                photoAccessHelper.getPhotoAccessHelper(context);
              // onClick触发后5秒内通过createAsset接口创建图片文件，5秒后createAsset权限收回。
              let uri = await helper.createAsset(photoAccessHelper.PhotoType.IMAGE, 'jpg');
              // 使用uri打开文件，可以持续写入内容，写入过程不受时间限制
              let file = await fs.open(uri, fs.OpenMode.READ_WRITE | fs.OpenMode.CREATE);
              try {
                context.resourceManager.getMediaContent($r('app.media.startIcon').id, 0).then(async value => {
                  let media = value.buffer;
                  // 写到媒体库文件中
                  await fs.write(file.fd, media);
                  await fs.close(file.fd);
                  AlertDialog.show({ message: '已保存至相册!' });
                });
              } catch (err) {
                console.error("error is " + JSON.stringify(err))
              }
            } catch (error) {
              console.error("error is " + JSON.stringify(error));
            }
          } else {
            AlertDialog.show({ message: "设置权限失败" })
          }
        })
      }.width('100%')
    }.height('100%')
  }
}