# 调用预加载

* **[添加预加载依赖类](https://developer.huawei.com/consumer/cn/doc/harmonyos-guides/cloudfoundation-prefetch-add-dependency-class)**   
* **[调用安装预加载](https://developer.huawei.com/consumer/cn/doc/harmonyos-guides/cloudfoundation-call-installprefetch)**   
* **[调用周期性预加载](https://developer.huawei.com/consumer/cn/doc/harmonyos-guides/cloudfoundation-call-periodicprefetch)**   
* **[调用跳链安装预加载](https://developer.huawei.com/consumer/cn/doc/harmonyos-guides/cloudfoundation-call-chain-install-prefetch)**   
* **[调用全部预加载](https://developer.huawei.com/consumer/cn/doc/harmonyos-guides/cloudfoundation-call-install-and-periodic-prefetch)**