traffic-eff-app/util/index.js

export const getImageUrl = (uri) => {
  return `${process.env.UNI_FILE_PREFIX}${uri}`;
};

export const viewFileFn = (fileUrl, fileName, fileSuffix) => { // 文件url 文件名 文件后缀
  uni.showLoading({
    title: '加载中…',
    mask: true,
  });
  let downloadTask = uni.downloadFile({
    url: fileUrl,
    success: function (res) {
      console.log('downloadFile 成功', res);
      var tempFilePath = res.tempFilePath; // 下载成功后的临时文件路径
      var newFilePath = `${wx.env.USER_DATA_PATH}/${fileName}${fileSuffix}`; // 新的文件路径，USER_DATA_PATH 是小程序的本地文件存储目录
      uni.saveFile({
        tempFilePath: tempFilePath,
        filePath: newFilePath,
        success: function (res) {
          console.log('saveFile 成功', res.savedFilePath);
          uni.openDocument({
            filePath: res.savedFilePath, // 打开新的文件路径
            showMenu: false,
            success: function (res) {
              console.log('openDocument 成功', res);
            },
            fail: function (err) {
              console.log('openDocument 失败', err);
            },
          });
          uni.hideLoading();
        },
        fail: function (err) {
          console.log('saveFile 失败', err);
          uni.hideLoading();
        },
      });
    },
    fail: function (res) {
      console.log('downloadFile 失败', res);
      uni.hideLoading();
    },
  });
};
export const setStorageObj = (key, value = {}) => {
  const json = JSON.stringify(value);
  uni.setStorageSync(key, json);
};

export const getStorageObj = (key) => {
  const json = uni.getStorageSync(key);
  if (!json) {
    return null;
  }
  return JSON.parse(json);
};

export const getUserInfo = () => {
  const userInfo = getStorageObj('userInfo');
  if (!userInfo) {
    return null;
  }
  return userInfo;
};