如何在iOS中的UIWebview中獲取內容

Question

我的viewcontroller中有一個uiwebview，用於顯示epub內容，如何從UIWebView的NSString中獲取該內容？ 此代碼對我不起作用

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

Answer 1

試試這個：

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

Answer 2

使用此委托確保在加載Web視圖之前顯示內容：

  - (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"];
         }

    }