如何在ipad中清除webview缓存 [英] how to clear webview cache in ipad

问题描述

这里我使用

加载uiwebview中的内容

  [webView loadHTMLString：[theApp.contentArr objectAtIndex：spineIndex] baseURL ：URL]返回后我需要清除缓存<$ p $ 
 
 
这里我尝试了这些方法来清除缓存：
  [webView stringByEvaluatingJavaScriptFromString：@document。 body.innerHTML = \\;]; 
 [webView loadRequest：[NSURLRequest requestWithURL：[NSURL URLWithString：@about：blank]]]; 
 //删除所有缓存的响应
 [[NSURLCache sharedURLCache] removeAllCachedResponses]; 
 
 //设置空缓存
 NSURLCache * sharedCache = [[NSURLCache alloc] initWithMemoryCapacity：0 diskCapacity：0 diskPath：nil]; 
 [NSURLCache setSharedURLCache：sharedCache]; 
  
但没有用，这是什么解决方案...... 
解决方案
使用 -  
  [webView stringByEvaluatingJavaScriptFromString：@ document.body.innerHTML = \\;]; 
 
 NSURLRequest * urlRequest = [NSURLRequest requestWithURL：[NSURL URLWithString：@about：blank]]; 
 [urlRequest setCachePolicy：NSURLRequestReloadIgnoringLocalCacheData]; 
 
 [webView loadRequest：urlRequest]; 
  
 
Here i have load the content in the uiwebview using 
[webView loadHTMLString:[theApp.contentArr objectAtIndex:spineIndex] baseURL:url];
after going back and come i need to clear the cache 

here i have tried these kinds of methods to clear the cache:
 [webView stringByEvaluatingJavaScriptFromString:@"document.body.innerHTML = \"\";"];
    [webView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"about:blank"]]];
    // remove all cached responses
        [[NSURLCache sharedURLCache] removeAllCachedResponses];

        // set an empty cache
    NSURLCache *sharedCache = [[NSURLCache alloc] initWithMemoryCapacity:0 diskCapacity:0 diskPath:nil];
    [NSURLCache setSharedURLCache:sharedCache];
but no use, what is the solution for this.....
解决方案
Use - 
[webView stringByEvaluatingJavaScriptFromString:@"document.body.innerHTML = \"\";"];

NSURLRequest *urlRequest = [NSURLRequest requestWithURL:[NSURL URLWithString:@"about:blank"]];
[urlRequest setCachePolicy:NSURLRequestReloadIgnoringLocalCacheData];

[webView loadRequest:urlRequest];


                        
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