1  api.setRefreshHeaderInfo({
 2         visible: true,
 3         loadingImg: ‘widget://image/refresh.png‘,
 4         bgColor: ‘#ccc‘,
 5         textColor: ‘#fff‘,
 6         textDown: ‘下拉刷新...‘,
 7         textUp: ‘松开刷新...‘,
 8         showTime: true
 9     }, function(ret, err) {
10         //重新发送请求，请求结束后根据返回数据更新页面
11     });