问使用loadUrl获取下拉框中的所有选择选项

EN

<select name="cardId" id="select_card_no" onfocus="null" onchange="null">
<option value="">Choose card number</option>
<option value="010607655930" >010607655930</option>
<option value="050538806749" >050538806749</option>
<option value="054100790989" >054100790989</option>
</select>

public void onPageFinished(WebView view, String url) {
                if(url == "https://oyster.tfl.gov.uk/oyster/entry.do"){             
                    String ausername = "abcde";
                    String apassword = "12345";
                    view.loadUrl("javascript:document.getElementsByName('j_username')[0].value = '"+ausername+"'");
                    view.loadUrl("javascript:document.getElementsByName('j_password')[0].value = '"+apassword+"'");
                    view.loadUrl("javascript:document.forms[0].submit()");
                }

String ddl = view.loadUrl("javascript:document.getElementById('select_card_no')");