title: WebView Display White or Blank page
body: <p>does anyone know why webview displaying white page?
  Here is the code</p>
  
  <pre><code>webView = (WebView) this.findViewById(R.id.webView);
  webView.getSettings().setJavaScriptEnabled(true);
  webView.loadUrl(THE_URL);
  webView.setWebViewClient(new WebViewClient());
  </code></pre>
  
  <p>and this functions is also called:</p>
  
  <pre><code>@Override
  public void onPageFinished(WebView view, String url) {
  }
  </code></pre>
  
  <p>am I missing something there?
  Of course, the error is not from the XML, because the webview only does not display some URL.</p>
  
  <p>Thanks</p>