android webview cross domain problem

Use Android webView to access html pages, when encountering ajax cross-domain access, just add it to the header

http {
  ......
  add_header Access-Control-Allow-Origin *;
  add_header Access-Control-Allow-Headers X-Requested-With;
  add_header Access-Control-Allow-Methods GET,POST,OPTIONS;
  ......
}

information, can not solve the problem of cross-domain access, you can try to set the following configuration for webview, the problem has been solved;

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN){
            webView.getSettings().setAllowUniversalAccessFromFileURLs(true);
        }else{
            try {
                Class<?> clazz = webView.getSettings().getClass();
                Method method = clazz.getMethod("setAllowUniversalAccessFromFileURLs", boolean.class);
                if (method != null) {
                    method.invoke(webView.getSettings(), true);
                }
            } catch (NoSuchMethodException e) {
                e.printStackTrace ();
            } catch (InvocationTargetException e) {
                e.printStackTrace ();
            } catch (IllegalAccessException e) {
                e.printStackTrace ();
            }
        }