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我将 NSLogs 添加到我的所有 UIWebView 委托方法和 viewDidLoad 以跟踪所有内容，出于某种原因，我看到了 999 错误和多个“DidFinishLoad”调用。有谁知道如何优化这个？

这是我的日志：

2013-12-25 23:56:51.656 VA[10598:60b] View Did Load
2013-12-25 23:56:52.216 VA[10598:60b] Should Start Load with request.
2013-12-25 23:56:52.219 VA[10598:60b] Webview did start load.
2013-12-25 23:56:53.531 VA[10598:60b] Should Start Load with request.
2013-12-25 23:56:53.536 VA[10598:60b] failed with error. Error Domain=NSURLErrorDomain Code=-999 "The operation couldn’t be completed. (NSURLErrorDomain error -999.)" UserInfo=0x16e4e240 {NSErrorFailingURLKey=http://myexamplesite.com/us/en_us, NSErrorFailingURLStringKey=http://myexamplesite.com/us/en_us}
2013-12-25 23:56:53.549 VA[10598:60b] Webview did start load.
2013-12-25 23:56:54.259 VA[10598:60b] Should Start Load with request.
2013-12-25 23:56:54.260 VA[10598:60b] Webview did start load.
2013-12-25 23:56:54.263 VA[10598:60b] Webview Did Finish Load
2013-12-25 23:56:54.266 VA[10598:60b] Should Start Load with request.
2013-12-25 23:56:54.267 VA[10598:60b] Webview did start load.
2013-12-25 23:56:54.269 VA[10598:60b] Webview Did Finish Load
2013-12-25 23:56:54.293 VA[10598:60b] Should Start Load with request.
2013-12-25 23:56:54.294 VA[10598:60b] Webview did start load.
2013-12-25 23:56:54.300 VA[10598:60b] Should Start Load with request.
2013-12-25 23:56:54.301 VA[10598:60b] Webview did start load.
2013-12-25 23:56:54.402 VA[10598:60b] Should Start Load with request.
2013-12-25 23:56:54.403 VA[10598:60b] Webview did start load.
2013-12-25 23:56:54.405 VA[10598:60b] Webview Did Finish Load
2013-12-25 23:56:54.509 VA[10598:60b] Should Start Load with request.
2013-12-25 23:56:54.510 VA[10598:60b] Webview did start load.
2013-12-25 23:56:54.653 VA[10598:60b] Webview Did Finish Load
2013-12-25 23:56:54.861 VA[10598:60b] Webview Did Finish Load
2013-12-25 23:56:54.914 VA[10598:60b] Webview Did Finish Load
2013-12-25 23:56:54.921 VA[10598:60b] Webview Did Finish Load

这是我在 viewDidLoad 中加载 webView 的方式：

NSURL *url = [NSURL URLWithString:shoeLink];
    NSURLRequest *requestObj = [NSURLRequest requestWithURL:url];
    [shoeWebView loadRequest:requestObj];

有没有办法让我优化它，以便获得最快的加载时间？谢谢，节日快乐！

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1 回答 1

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加载网页的每一帧都会调用 shouldStart、didStart 和 didFinish 的 UIWebView 委托回调方法。这就是为什么您会看到这些调用针对某些网页重复了很多次。从日志中可以看出，加载其中一个框架失败，但其余框架加载正常，这就是您仍然能够看到网页的原因。

关于您问题的第二部分，没有真正的优化可以使这一切更快地发生，您已经以正确的方式提出了请求。

于 2013-12-26T08:13:57.833 回答