Android webviewclient callback calls are too frequent

When I call WebView #loadurl, I hope I can only get one webviewclient #onpagefinished call without webviewclient #shouldoverrideurloading call. However, I get a webviewclient #shouldoverrideurloading (I implement it by always calling WebView #loadurl and returning true), and then two webviewclient #onpagefinished calls with the same URL

The page I am loading uses many Ajax requests. Will the Ajax request call webviewclient? There are no meta refreshes in my page

It's very frustrating. Did I do something wrong?

resolvent:

This is a cross post of a Google Groups discussion I started on the topic

I've done more research and I think I understand what's happening

This is my webviewclient:

public class MyWebViewClient extends WebViewClient {
  @Override
  public void onPageStarted(WebView view, String url, Bitmap favicon) {
    System.out.println("onPageStarted: " + url);
  }

  @Override
  public boolean shouldOverrideUrlLoading(WebView webView, String url) {
    System.out.println("shouldOverrideUrlLoading: " + url);
    webView.loadUrl(url);
    return true;
  }

  @Override
  public void onPageFinished(WebView webView, String url) {
    System.out.println("onPageFinished: " + url);
  }
}

My server has the following URL redirects:

http://example.com/resource -> http://example.com/user-name/resource
http://example.com/logout.jsp -> http://example.com/login/logout
http://example.com/login/logout -> http://example.com/login

These URLs are part of a server that I can't control, so I just need to deal with this behavior

The following is the loading http://example.com/resource Output of

onPageStarted: http://example.com/resource
onPageStarted: http://example.com/user-name/resource
shouldOverrideUrlLoading: http://example.com/user-name/resource
onPageFinished: hhttp://example.com/user-name/resource

At this time, my WebView has blank content. I can't catch my content until onpagefinished the second time

onPageStarted: http://example.coms/user-name/resource
onPageFinished: http://example.com/user-name/resource

The following is the loading http://example.com/logout.jsp Output of

onPageStarted: http://example.com/logout.jsp
onPageStarted: http://example.com/login/logout
shouldOverrideUrlLoading: http://example.com/login/logout
onPageFinished: http://example.com/login/logout
onPageStarted: http://example.com/login/logout
onPageStarted: http://example.com/login
shouldOverrideUrlLoading: http://example.com/login
onPageFinished: http://example.com/login

Again, at this time, my WebView has a blank page. I must wait until onpagefinished for the third time to get my content from WebView

onPageStarted: http://example.com/login
onPageFinished: http://example.com/login

According to the documentation, I don't expect this behavior. Please note that the number of onpagestarts and onpagefinishes is unbalanced. I especially don't like calling onpagefinished with redirected URL, but WebView doesn't contain my content. I know this behavior may not be changed, but at least this unexpected behavior should be recorded