import photoAccessHelper from "@ohos.photoAccess.photoAccessHelper";
async function pickImage() {  try {    // 1. 创建选择器实例    const picker = photoAccessHelper.createPhotoViewPicker();
    // 2. 配置选择参数（此处使用默认配置）    const options = {      MIMEType: photoAccessHelper.PhotoViewMIMETypes.IMAGE_TYPE, // 只选择图片      maxSelectNumber: 1, // 最多选择张数      isSearchSupported: true, // 显示搜索      isPhotoTakingSupported: true, // 支持拍照      recommendationOptions: true, // 智能推荐      preselectedUris: true, // 预览文件      isPreviewForSingleSelectionSupported: true, // 单选是否支持预览    };
    // 3. 启动选择器并获取结果    const selectedAssets = await picker.select(options);
    if (selectedAssets.photoUris.length) {      // 处理选择的资源      console.info("选择的资源:", selectedAssets.photoUris);    }  } catch (error) {    console.error("选择图片失败:", error);  }}

const options = {  MIMEType: photoAccessHelper.PhotoViewMIMETypes.IMAGE_TYPE, // 只选择图片  maxSelectNumber: 1, // 最多选择张数  isSearchSupported: true, // 显示搜索  isPhotoTakingSupported: true, // 支持拍照  recommendationOptions: true, // 智能推荐  preselectedUris: true, // 预览文件  isPreviewForSingleSelectionSupported: true, // 单选是否支持预览};

// 示例1：只允许选择JPEG和PNG图片IMAGE_TYPE = 'image/*',// 示例2：只允许选择视频文件VIDEO_TYPE = 'video/*',// 示例3：MOVING_PHOTO_IMAGE_TYPE = 'image/movingPhoto'// 示例4：允许所有IMAGE_VIDEO_TYPE = '*/*',

class PhotoSelectResult {  /**   * The uris for the selected files.   *   * @type { Array<string> }   * @syscap SystemCapability.FileManagement.PhotoAccessHelper.Core   * @since 10   */  /**   * The uris for the selected files.   *   * @type { Array<string> }   * @syscap SystemCapability.FileManagement.PhotoAccessHelper.Core   * @atomicservice   * @since 11   */  /**   * The uris for the selected files.   *   * @type { Array<string> }   * @syscap SystemCapability.FileManagement.PhotoAccessHelper.Core   * @crossplatform   * @atomicservice   * @since 12   */  photoUris: Array<string>;  /**   * Original option.   *   * @type { boolean }   * @syscap SystemCapability.FileManagement.PhotoAccessHelper.Core   * @since 10   */  /**   * Original option.   *   * @type { boolean }   * @syscap SystemCapability.FileManagement.PhotoAccessHelper.Core   * @atomicservice   * @since 11   */  /**   * Original option.   *   * @type { boolean }   * @syscap SystemCapability.FileManagement.PhotoAccessHelper.Core   * @crossplatform   * @atomicservice   * @since 12   */  isOriginalPhoto: boolean;}

// 这里以oss上传为例// uri为选择图片路径import { http } from '@kit.NetworkKit';import fs from '@ohos.file.fs'import { request } from '@kit.BasicServicesKit';export async function upload (uri: string): Promise<string> {  // 此处从服务器获取  const data = {    policy: 'qweqwe',    signature: 'qweqwe',    ossAccessKeyId: 'qweqwe',    host: 'https://???/api',  };  const name = Date.now() + '.' + uri.split('.').pop();  const key = `${new Date().getFullYear()}/${name}`  const context = getContext();  // 通过getContext获取沙箱地址  const destPath = `${context.cacheDir}/${name}`;  const file = fs.openSync(uri);  // 将文件复制一份到沙箱缓存地址，这一步尤为重要，只有沙箱地址的文件可以进行上传操作  fs.copyFileSync(file.fd, destPath);  const result = await request.uploadFile(context,{    // files字段是上传的文件组成的列表，类型为formData    files: [{ filename: 'file', name: 'file', uri: `internal://cache/${name}`, type: 'image/jpeg' }],    // data字段是携带的参数，建议把类型设置为formData    data: [      { name: 'name', value: `${name}`, },      { name: 'policy', value: `${data.policy}` },      { name: 'OSSAccessKeyId', value: Object.values(data)[2] },      { name: 'signature', value: `${data.signature}` },      { name: 'key', value: key },    ],    method: http.RequestMethod.POST,    header: {      Accept: '*/*',      // 设置header确保参数类型为FormData      "Content-Type": "multipart/form-data"    },    // 请求地址    url: data.host  });  return new Promise((res, rej) => {    result.on('progress', (u, t) => {      console.log('进度', u / t);    });    result.on('complete', e => {      console.log('ok', JSON.stringify(e));      res(`${data.host + key}`);    });    result.on('fail', e => {      console.log('错误', JSON.stringify(e));      rej(e);    })  });}

{  "requestPermissions": [    {      "name": "ohos.permission.READ_MEDIA",      "reason": "需要访问媒体文件"    }  ]}

const name = Date.now() + "";const key = `${new Date().toLocaleDateString()}/${name}`;const context = getContext();const destPath = `${context.cacheDir}/${name}`;const file = fileIo.openSync(uri);fileIo.copyFileSync(file.fd, destPath);console.log(destPath);