图库函数集

1、从图库获取视频和图片，返回uri合集

点击查看代码

  private selectMedia(mediaType: string = "image"): Promise<string> {
    const photoSelectOptions = new photoAccessHelper.PhotoSelectOptions();
    if (mediaType === "video") {
      photoSelectOptions.MIMEType = photoAccessHelper.PhotoViewMIMETypes.VIDEO_TYPE; // 过滤选择媒体文件类型为IMAGE
    } else if (mediaType === "image") {
      photoSelectOptions.MIMEType = photoAccessHelper.PhotoViewMIMETypes.IMAGE_TYPE; // 过滤选择媒体文件类型为IMAGE
    }
    photoSelectOptions.maxSelectNumber = 1; // 选择媒体文件的最大数目
    let uris: Array<string> = [];
    const photoViewPicker = new photoAccessHelper.PhotoViewPicker();
    return photoViewPicker.select(photoSelectOptions).then((photoSelectResult: photoAccessHelper.PhotoSelectResult) => {
      uris = photoSelectResult.photoUris;
      let firstImage = uris.pop()
      let file = fileIo.openSync(firstImage, fileIo.OpenMode.READ_ONLY);
      let tempDir = this.context.getApplicationContext().tempDir;
      let fileName = file.name;
      let tmpFile = tempDir + '/' + fileName;
      fileIo.copyFileSync(file.fd, tmpFile)
      let finalUri = fileUri.getUriFromPath(tmpFile); // 获取到文件的uri
      return finalUri
    })
  }