HarmonyOS 使用安全控件保存图片到本地失败

使用安全空间保存PixelMap格式的图片到本地时，api提示成功但相册里没有，此时给app进程终止（目前看必须这么做，否则相册没有图片），相册里就出现那张图片了。

操作步骤：

1、使用安全空间保存PixelMap格式的图片到本地。

import { util } from '@kit.ArkTS';
import { image } from '@kit.ImageKit';
import { BusinessError } from '@kit.BasicServicesKit';
import { photoAccessHelper } from '@kit.MediaLibraryKit';
import { fileIo } from '@kit.CoreFileKit';

SaveButton(this.saveButtonOptions).onClick(async (event, result: SaveButtonOnClickResult) => {
  if (result == SaveButtonOnClickResult.SUCCESS) {
    let bs64Helper = new util.Base64Helper();
    let base64: string = ''
    let buffer: ArrayBuffer = bs64Helper.decodeSync(base64, util.Type.MIME).buffer as ArrayBuffer;
    let imageSource = image.createImageSource(buffer);
    let opts: image.DecodingOptions = { editable: true };
    imageSource.createPixelMap(opts).then(async (pixelMap: image.PixelMap) => {
      // 获取相册的保存路径
      let contextThis: Context = getContext(this);
      let paHelper = photoAccessHelper.getPhotoAccessHelper(contextThis);
      let uri = await paHelper.createAsset(photoAccessHelper.PhotoType.IMAGE, 'jpeg');
      let file = await fileIo.open(uri, fileIo.OpenMode.READ_WRITE | fileIo.OpenMode.CREATE);
      let imagePackerApi = image.createImagePacker();
      let packOpts: image.PackingOption = { format: 'image/jpeg', quality: 98 };

      imagePackerApi.packToFile(pixelMap, file.fd, packOpts, (error: BusinessError) => {
        if (error) {
          console.log(JSON.stringify(error))
        } else {
          console.log('成功')
        }
      })
    }).catch((error: BusinessError) => {
      console.log(JSON.stringify(error))
    })
  }
})
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