除非调用此代码两次，否则iOS UIWebView标题不会更新

问题描述

网页标题不会更新，除非我调用方法两次

  NSURL * yourURL = [NSURL URLWithString：webpageURLLabel.text ]。 
 NSURLRequest * request = [[NSURLRequest alloc] initWithURL：yourURL]; 
 [webpagePreview loadRequest：request]; 
 webpagePreview.scalesPageToFit = YES; 
 webpageTitleLabel.text = [webpagePreview stringByEvaluatingJavaScriptFromString：@document.title]; 
  

关于如何解决这个问题的建议？

{
webpageTitleLabel.text = [webpagePreview stringByEvaluatingJavaScriptFromString：@ 文件名];
}

以上代码解决了我的问题。

Webpage title doesn't update unless I call the method twice

NSURL *yourURL = [NSURL URLWithString: webpageURLLabel.text ];
NSURLRequest *request = [[NSURLRequest alloc] initWithURL:yourURL];
[webpagePreview loadRequest:request];
webpagePreview.scalesPageToFit = YES;
webpageTitleLabel.text = [webpagePreview stringByEvaluatingJavaScriptFromString:@"document.title"];

Any suggestions on how to fix this?

解决方案

- (void)webViewDidFinishLoad:(UIWebView *)webView
{
    webpageTitleLabel.text = [webpagePreview stringByEvaluatingJavaScriptFromString:@"document.title"];
}

The above code fixed my issue.

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