a flutter simple swipe refresh layout,container more and load more
return new SwipeRefreshLayout(
onLoad: _handlerRefresh,//Futrue<Null>
onLoadMore: _handlerRefreshMore,//Futrue<Null>
child: new ListView(
children: _notices.map((Notice notice) {
return new ListTile(
title: new Text(notice.title),
subtitle: new Text(notice.content));
}).toList(),
));