public override async void OnPageFinished(WebView view, string url)
        {
            base.OnPageFinished(view, url);


            if (url.Contains("https://contosocabs.azurewebsites.net/oauth/uber?code="))
            {
                int index = url.IndexOf("=");
                code = url.Substring(index + 1);
                code = code.Trim();
                System.Diagnostics.Debug.WriteLine("ac code :" + code);

                SendTokenResponse mResp = await mCabsApi.SendToken(token, code);

                System.Diagnostics.Debug.WriteLine("In webviewclient resp code " + mResp.Code);
                if (mResp.Code == ResponseCode.SUCCESS)
                {
                    mEditor.PutBoolean("hasAccounts", true).Apply();
                    isDone = true;
                    webViewAccountsActivity.StartActivity(new Intent(webViewAccountsActivity, typeof(GettingStartedActivity)));
                    webViewAccountsActivity.Finish();
                }
                else
                {
                    //webViewAccountsActivity.StartActivity(new Intent(webViewAccountsActivity, typeof(NavigationActivity)));
                    //webViewAccountsActivity.Finish();
                }
            }
            else
            {
            }
        }
        async void WebViewControl_ScriptNotify(object sender, NotifyEventArgs e)
        {
            // Be sure to verify the source of the message when performing actions with the data.
            // As webview can be navigated, you need to check that the message is coming from a page/code
            // that you trust.

            string            code     = e.Value;
            string            token    = Windows.Storage.ApplicationData.Current.LocalSettings.Values["Token"].ToString();
            CabsAPI           api      = new CabsAPI();
            SendTokenResponse response = await api.SendToken(token, code);

            if (response.Code == ResponseCode.SUCCESS)
            {
                Frame.BackStack.Clear();
                Frame.Navigate(typeof(Navigation.NavigationPage), "OPEN_PROFILE");
            }
            else
            {
                await new MessageDialog("Cannot Authenticate your account now. Try again later").ShowAsync();
                Frame.BackStack.Clear();
                Frame.Navigate(typeof(Navigation.NavigationPage), "OPEN_PROFILE");
            }
        }