如何在ios中获取UIWebview中的内容

Question

我的viewcontroller中有一个用于显示epub内容的uiwebview，如何从UIWebView获取NSString中的内容？ 这段代码对我不起作用

NSString *html = [webView stringByEvaluatingJavaScriptFromString: @"document.body.innerHTML"]; 

Answer 1

试试这个：

NSString *html = [webView stringByEvaluatingJavaScriptFromString:@"document.body.innerText"];//may be `"document.body.innerText;"`

Answer 2

使用此委托确保在显示内容之前加载Web视图：

  - (void)webViewDidFinishLoad:(UIWebView *)webView
   {
    if(!webView.isLoading){
       //if you need to get all ressources
        NSString html=[webView    stringByEvaluatingJavaScriptFromString:@"document.documentElement.outerHTML"];
       //if you need just the content of Body
       NSString html=[webView stringByEvaluatingJavaScriptFromString:@"document.body.innerHTML"];
         }

    }