UIWebView内存占用过高、崩溃、内存溢出
浏览数：37 /
时间：2015年06月09日
UIWebView内存占用过高、崩溃、内存溢出，有需要的朋友可以参考下。
项目当中模拟器上运行UIWebView读取本地杂志,没问题，真机测试经常内存溢出崩溃。
查了资料因为Html里的js 导致的内存泄漏，每次打开一个连接就会把“WebKitCacheModelPreferenceKey”设置成1。
UIWebView 增加
- (void)webViewDidFinishLoad:(UIWebView *)webView {
[[NSUserDefaults standardUserDefaults] setInteger:0 forKey:@"WebKitCacheModelPreferenceKey"];
}
解决问题
原因:
Your are going to have a big memory usage and leak a lot of data!
But there is a hack to solve this problem: revert what is done when you open a link.
In fact, the key property which leads to this leak is the WebKitCacheModelPreferenceKey application setting. And when you open a link in a UIWebView, this property is automatically set to the value "1". So, the solution is to set it back to 0 everytime you open a link. You may easily do this by adding a UIWebViewDelegate to your UIWebView :
- (void)webViewDidFinishLoad:(UIWebView *)webView {
[[NSUserDefaults standardUserDefaults] setInteger:0 forKey:@"WebKitCacheModelPreferenceKey"];
}
So are you going to have much less crash due to "Low Memory" :)
项目当中模拟器上运行UIWebView读取本地杂志,没问题，真机测试经常内存溢出崩溃。
查了资料因为Html里的js 导致的内存泄漏，每次打开一个连接就会把“WebKitCacheModelPreferenceKey”设置成1。
UIWebView 增加
- (void)webViewDidFinishLoad:(UIWebView *)webView {
[[NSUserDefaults standardUserDefaults] setInteger:0 forKey:@"WebKitCacheModelPreferenceKey"];
}
解决问题
原因:
Your are going to have a big memory usage and leak a lot of data!
But there is a hack to solve this problem: revert what is done when you open a link.
In fact, the key property which leads to this leak is the WebKitCacheModelPreferenceKey application setting. And when you open a link in a UIWebView, this property is automatically set to the value "1". So, the solution is to set it back to 0 everytime you open a link. You may easily do this by adding a UIWebViewDelegate to your UIWebView :
- (void)webViewDidFinishLoad:(UIWebView *)webView {
[[NSUserDefaults standardUserDefaults] setInteger:0 forKey:@"WebKitCacheModelPreferenceKey"];
}
So are you going to have much less crash due to "Low Memory" :)
崩溃次数减少很多。
国外小哥原文地址:http://blog.techno-barje.fr//post/2010/10/04/UIWebView-secrets-part1-memory-leaks-on-xmlhttprequest/
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