内存访问错误?

问题描述

这句话怎么会给我不好的访问权限?

How can this statement ever give me bad access?

myWebView = [[NewsWebViewController alloc] initWithNibName:@"NewsWebViewController" bundle:nil];
[[self.view.superview superview] addSubview:myWebView.view];

 if(myWebView!=nil) {
    [myWebView release];
    myWebView = nil;
}

我已经通过仪器运行了它，每次都崩溃了. myWebView是我的头文件中的一个ivar.

Ive ran it through instruments and it crashes every time. myWebView is an ivar in my header file.

有什么想法吗?非常感谢

Any thoughts? Many thanks

朱尔斯

推荐答案

好的，这是实际问题.当我删除webview时，它被解除了分配，但是我没有将其委托设置为nil.因此，webViewDidFinishLoading等正在尝试访问它，并给了我错误的访问权限.

ok here is the actual issue. When I removed the webview it gets dealloc'd but I didnt set its delegate to nil. Therefore webViewDidFinishLoading etc was trying to access it and giving me bad access.

感谢大家的投入.

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