我正在尝试将onValueChangeListener添加到我在android4.2.2中的数字选择器(np1)。这是我目前所拥有的publicclassmainextendsActivity{ViewFlippervf=null;HttpClientclient=null;privateArrayListcaptionList=newArrayList();ListViewlv=null;privateStringcustid=null;ImageViewiv=null;privateintvfloginview=0;privateintvflistview=0;privateboo