HarmonyOS 鸿蒙Next PermissionName: ohos.permission.READ_IMAGEVIDEO Install Failed: error: failed to install bundle.

fileIo有现成的copyFile方法的。

//检查文件夹是否存在，不存在 递归创建多级文件夹
createFolder(dirPath:string) {
    // 首先判断文件夹是否存在
    let isExist = false;
    try {
      isExist = fileIo.accessSync(dirPath, fileIo.AccessModeType.EXIST);
      if (isExist) {
        console.info('文件夹已存在');
        return;
      }
    } catch (error) {
      // TODO: Implement error handling.
    }
    // 创建文件夹 recursive参数为true时可递归创建多级目录
    fileIo.mkdir(dirPath, true ).then(() => {
      console.info('mkdir succeed');
    }).catch((err: BusinessError) => {
      console.error(`mkdir failed. error message: ${err.message}, error code: ${err.code}`);
    });
  }

  //生成沙箱文件路径
  wrapFilePath(context:Context):string{
    let dirPath = context.filesDir + '/xxxx';//改成自己项目的沙箱目录
    this.createFolder(dirPath);
    let fileName = `${new Date().getTime()}`;
    let filePath = dirPath + `/${fileName}.jpg`;//后缀可以根据选择的图片来
    return filePath;
  }

  //从相册选择图片，并复制到沙箱
  async getPhotoPickerResult(context: Context): Promise<string> {
    let photoSelectOptions = new photoAccessHelper.PhotoSelectOptions();
    photoSelectOptions.MIMEType = photoAccessHelper.PhotoViewMIMETypes.IMAGE_TYPE;
    photoSelectOptions.maxSelectNumber = 1; // 选择一张图片
    let photoPicker = new photoAccessHelper.PhotoViewPicker();
    let photoUri = '';
    try {
      let result = await photoPicker.select(photoSelectOptions);
      let uri = result.photoUris[0];
      try {
        let file = fileIo.openSync(uri, fileIo.OpenMode.READ_ONLY);
        let filePath = this.wrapFilePath(context);
        fileIo.copyFileSync(file.fd, filePath);
        fileIo.close(file);
        // 沙箱路径
        photoUri = fileUri.getUriFromPath(filePath);
      } catch (error) {
        // TODO: Implement error handling.
      }
      console.info(`Sandbox uri: ${photoUri}`);
    } catch (error) {
      // TODO: Implement error handling.
    }
    return photoUri;
}