HarmonyOS 鸿蒙Next 清除缓存清除不干净，求教

HarmonyOS 鸿蒙Next 清除缓存清除不干净，求教

getCache() {
  storageStatistics.getCurrentBundleStats().then((BundleStats: storageStatistics.BundleStats) => {
    // 将 cacheSize 转换为 MB 单位
    const cacheSizeInMB = (BundleStats.cacheSize / (1024 * 1024)).toFixed(2); // 保留两位小数
    this.cache = cacheSizeInMB + 'M'
    console.info("getCurrentBundleStats successfully:" + JSON.stringify(BundleStats));
    console.info("cacheSize in MB: " + cacheSizeInMB + " M");
  }).catch((err: BusinessError) => {
    console.error("getCurrentBundleStats failed with error:" + JSON.stringify(err));
  });
}

// 清理缓存
clearCache(filepath: string) {
  fileIo.listFiles(filepath).then((filenames) => {
    for (let i = 0; i < filenames.length; i++) {
      let dirPath = filepath + '/' + filenames[i];
      console.log('dirPath', dirPath);
      // 判断是否为文件夹
      let isDirectory: boolean = false;
      try {
        isDirectory = fileIo.statSync(dirPath).isDirectory();
      } catch (e) {
        console.error(JSON.stringify(e));
      }
      if (isDirectory) {
        fileIo.rmdirSync(dirPath);
      } else {
        fileIo.unlink(dirPath).then(() => {
          console.info('remove file succeed');
        }).catch((err: Error) => {
          console.error('remove file failed with error message: ' + err.message);
        });
      }
    }

  })
}

// 获取缓存路径(删除的路径为以下路径)

getPath() {
  // 获取原始密级
  let area = this.context.area;
  console.log('area', area)
  let appArea = this.context.getApplicationContext().area
  console.log('appArea', appArea)

  // 暂时替换密级
  this.context.area = contextConstant.AreaMode.EL2;
  this.context.getApplicationContext().area = 1

  let cacheDir01 = ''
  let cacheDir02 = getContext(this).cacheDir
  if (this.context.area === contextConstant.AreaMode.EL2) {
    cacheDir01 = cacheDir02.replace('el2', 'el1')
  } else if (this.context.area === contextConstant.AreaMode.EL1) {
    cacheDir01 = cacheDir02.replace('el1', 'el2')
  }
  console.log('cacheDir01', cacheDir01)
  console.log('cacheDir02', cacheDir02)

  let applicationContext = this.context.getApplicationContext(); // 获取应用上下文
  let cacheDirEL1 = ''
  let cacheDirEL2 = applicationContext.cacheDir;
  if (applicationContext.area === 1) { // 沙箱路径为1代表el2，0代表el1
    cacheDirEL1 = cacheDirEL2.replace('el2', 'el1')
  } else if (applicationContext.area === 0) {
    cacheDirEL1 = cacheDirEL2.replace('el1', 'el2')
  }
  console.log('cacheDirEL1', cacheDirEL1)
  console.log('cacheDirEL2', cacheDirEL2)


  // 还原密级
  this.context.area = area;
  this.context.getApplicationContext().area = appArea

  fileIo.access(cacheDir01, (err: BusinessError, res: boolean) => {
    if (err) {
      console.error("access failed with error message: " + err.message + ", error code: " + err.code);
    } else {
      if (res) {
        this.clearCache(cacheDir01)
      } else {
        console.info('cacheDir01', 'file not exists');
      }
    }
  });
  fileIo.access(cacheDir02, (err: BusinessError, res: boolean) => {
    if (err) {
      console.error("access failed with error message: " + err.message + ", error code: " + err.code);
    } else {
      if (res) {
        this.clearCache(cacheDir02)
      } else {
        console.info('cacheDir02', "file not exists");
      }
    }
  });
  fileIo.access(cacheDirEL1, (err: BusinessError, res: boolean) => {
    if (err) {
      console.error("access failed with error message: " + err.message + ", error code: " + err.code);
    } else {
      if (res) {
        this.clearCache(cacheDirEL1)
      } else {
        console.info('cacheDirEL1', "file not exists");
      }
    }
  });
  fileIo.access(cacheDirEL2, (err: BusinessError, res: boolean) => {
    if (err) {
      console.error("access failed with error message: " + err.message + ", error code: " + err.code);
    } else {
      if (res) {
        this.clearCache(cacheDirEL2)
      } else {
        console.info('cacheDirEL2', "file not exists");
      }
    }
  });
  this.getCache()
  promptAction.showToast({
    message: '清除缓存成功',
    duration: 2000,
  })
}