UIWebView如何清除缓存

本文介绍了UIWebView如何清除缓存的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

如何清除UIWebView的缓存？

How to clear the cache of a UIWebView?

我正在制作一个简单的应用程序（只有三个按钮（后退，前进，刷新）和一个UIWebView）和我意识到在我的文件和数据iPhone获得了非常高的Cache值。我已经查看了各种文档和帖子（甚至在StackOverflow这里），但没有解决问题。 如果您需要代码行，请询问。

I am making a simple application (with only three buttons (back, forward, refresh) and a UIWebView) and I realized that in my Documents & Data iPhone gets a very high value of Cache. I already looked at various documents and posts (even here at StackOverflow) but none solved the problem. If you need lines of codes, ask.

推荐答案

[[NSURLCache sharedURLCache] removeCachedResponseForRequest:NSURLRequest];

这将删除特定请求的缓存响应。还有一个调用将删除在UIWebView上运行的所有请求的所有缓存响应：

This would remove a cached response for a specific request. There is also a call that will remove all cached responses for all requests ran on the UIWebView:

[[NSURLCache sharedURLCache] removeAllCachedResponses];

之后，您可以尝试使用UIWebView删除任何关联的cookie：

After that, you can try deleting any associated cookies with the UIWebView:

for(NSHTTPCookie *cookie in [[NSHTTPCookieStorage sharedHTTPCookieStorage] cookies]) { if([[cookie domain] isEqualToString:someNSStringUrlDomain]) { [[NSHTTPCookieStorage sharedHTTPCookieStorage] deleteCookie:cookie]; } }