UIWebView的内存泄漏

本文介绍了UIWebView的内存泄漏的处理方法，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

我的项目是一个混合静态库，用于显示带有一些JS来控制逻辑的UIWebView.当我使用64bit并在iOS 8/iPhone 6上运行演示时，内存一直保持30M或更多！

My project is a hybrid static lib for showing a UIWebView with some JS to control the logic. When I use 64bit and run demo on iOS 8/iPhone 6, the memory keeps going to 30M or more!

当我在乐器中使用生成时，增加的内存使用量几乎全部来自webcore.这是否意味着JS代码泄漏?当我使用Safari直接运行类似的JS时，我找不到泄漏.

When I use generation in instrument, the increased memory usage is almost all from webcore; does it means there are leaks in JS code? I can't find a leak when I use Safari to run similar JS directly.

当我释放UIWebView时，内存仍然没有被释放.我测试了仪器配置.内存中还有一些Webcore和(非对象)，我该怎么做才能释放它们?

When I release the UIWebView, the memory is still not freed; I tested with instrument allocation. There are some webcore and (non - object) still in memory, what can I do to release them?

0JavaScriptCore WTF :: MallocHook :: recordAllocation(void *，unsigned long)
1个JavaScriptCore WTF :: fastMalloc(unsigned long)
2 WebCore WebCore :: SharedBuffer :: buffer()const
3 WebCore WebCore :: SharedBuffer :: data()const
4 WebCore WebCore :: ResourceLoader :: didReceiveDataOrBuffer(char const *，unsigned int，WTF :: PassRefPtr，long long，WebCore :: DataPayloadType)
5 WebCore WebCore :: SubresourceLoader :: didReceiveDataOrBuffer(char const *，int，WTF :: PassRefPtr，long long，WebCore :: DataPayloadType)
6 WebCore WebCore :: SubresourceLoader :: didReceiveBuffer(WTF :: PassRefPtr，long long，WebCore :: DataPayloadType)
7 WebCore WebCore :: ResourceLoader :: didReceiveBuffer(WebCore :: ResourceHandle *，WTF :: PassRefPtr，int)
8 WebCore WebCore :: SynchronousResourceHandleCFURLConnectionDelegate :: didReceiveDataArray(__ CFArray const *)

我使用以下代码.

-(void)createUIWebview{
[self.webView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:serviceUrl]]];
}

- (void)webViewDidFinishLoad:(UIWebView *)webView
{
[[NSUserDefaults standardUserDefaults] setInteger:0 forKey:@"WebKitCacheModelPreferenceKey"];
}

-(void)dealloc{
if (_webView.isLoading){
    [_webView stopLoading];
}
[_webView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"about:blank"]]];
_webView.delegate=nil;
[_webView removeFromSuperview];
[_webView release];
_webView = nil;
}

我研究了以下链接，但它们似乎无法解决我的问题.UIWebview是否仍在iOS 8中泄漏?当我在iPhone4中使用iOS 6时，问题似乎并不明显.

I have researched the following links, but they don't seem to solve my problem.Is UIWebview still leaking in iOS 8? And the problem seems not so obvious when I use iOS 6 in iPhone4.

发布UIWebView的正确方法是什么?

iOS 8 UIWebView内存管理

UIWebView泄漏，JS垃圾收集器和WebCore虚拟机

从UIWebView关闭后释放内存/cookie/缓存

WebCore

UIWebView的内存泄漏

问题描述

推荐答案