HarmonyOS 鸿蒙Next中showAssetsCreationDialog异常

开发者您好，本地用您的代码未能复现您的问题，以下是本地尝试复现的代码，结果是有弹框的，您可以参考一下：

import { common } from "@kit.AbilityKit";
import { fileUri } from "@kit.CoreFileKit";
import { photoAccessHelper } from "@kit.MediaLibraryKit";
import { fileIo as fs } from '@kit.CoreFileKit'

@Entry
@Component
struct Demo {
  @State message: string = 'Hello World';
  uiContext = this.getUIContext().getHostContext() as common.UIAbilityContext

  private async saveVideoToAlbum(localPath: string, context: common.UIAbilityContext): Promise<void> {
    const srcFileUri = fileUri.getUriFromPath(localPath);
    const fileExt = localPath.includes('.')
      ? localPath.split('.').pop()?.toLowerCase() ?? 'mp4'
      : 'mp4';
    const fileName = localPath.split('/').pop() || `video_${Date.now()}`;
    const title = fileName.replace(/\.[^.]+$/, '');
    const creationConfigs: photoAccessHelper.PhotoCreationConfig[] = [{
      title: title,
      fileNameExtension: fileExt,
      photoType: photoAccessHelper.PhotoType.VIDEO
    }];
    try {
      const photoHelper = photoAccessHelper.getPhotoAccessHelper(context);
      const desFileUris = await photoHelper.showAssetsCreationDialog(
        [srcFileUri],
        creationConfigs
      );
      const destFile = fs.openSync(desFileUris[0], fs.OpenMode.WRITE_ONLY);
      fs.copyFileSync(localPath, destFile.fd);
      fs.closeSync(destFile.fd);
      photoHelper.release();
      KLog.i(TAG, TAG, `save video to album success, uri: ${desFileUris[0]}`);
    } catch (error) {
      KLog.e(TAG, TAG, `save video to album error: ${JSON.stringify(error)}`);
    }
  }

  build() {
    Column() {
      Text(this.message)
        .id('DemoHelloWorld')
        .fontSize($r('app.float.page_text_font_size'))
        .fontWeight(FontWeight.Bold)
        .onClick(() => {
          let array = this.uiContext.resourceManager.getRawFileContentSync('demo.mp4');
          let dirpath = (this.uiContext).tempDir + '/demo.mp4';
          let dirFile = fs.openSync(dirpath, fs.OpenMode.READ_WRITE | fs.OpenMode.CREATE);
          fs.writeSync(dirFile.fd, array.buffer);
          fs.closeSync(dirFile);
          this.saveVideoToAlbum(dirpath, this.uiContext);
        })

      Button("直接保存").onClick((event: ClickEvent) => {
        let dirpath = (this.uiContext).tempDir + '/demo.mp4';
        this.saveVideoToAlbum(dirpath, this.uiContext);
        this.message = '直接保存';
      })
    }
    .height('100%')
    .width('100%')
  }
}

若还是不能解决问题，麻烦您提供一下可复现的完整demo，IDE版本，设备版本和相关日志信息，感谢您的支持和理解。

showAssetsCreationDialog异常通常由以下原因导致：未授予ohos.permission.WRITE_MEDIA或ohos.permission.READ_MEDIA权限；传入的URI格式错误或指向不可写路径；Context类型不匹配（需为AbilityContext或ApplicationContext）；或设备存储空间不足。请检查权限声明、URI有效性以及Context参数。