如何在iOS中的UIWebview中获取内容

Question

I have a uiwebview in my viewcontroller which is used to display the epub contents ,How can i get that contents in NSString from UIWebView? This code not working for me

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

Use this delegate to ensure the loading web view before to display content:

  - (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"];
         }

    }