使用单webview下拉刷新时容易与日历组件冲突

比较揪心的解决方法：每次启动日历插件时，页面向下滚动10px。

//加载日历插件  
D('datebtnrows').addEventListener(getEventName(),function(){  
    if(mui.os.ios) {  
        //此代码的作用是为了解决使用单WEBVIEW下拉刷新时与日历插件的冲突；  
        mui('#pullrefresh').pullRefresh().scrollTo(0,10,100);  
    }  
    var datestr = dateBtn.getAttribute('datestr');  
    var dtPicker = new mui.DtPicker({"type":"date","value":datestr});  
    dtPicker.show(function (selectItems) {  
        var selectYear = selectItems.y.value;```javascript  
        var selectMonth = prefixInteger(selectItems.m.value);  
        var selectDay = prefixInteger(selectItems.d.value);  
        var selectstr = selectYear+'-'+selectMonth+'-'+selectDay;  
            dateBtn.innerHTML = selectMonth+'月'+selectDay+'日';  
            dateBtn.setAttribute('datestr',selectstr);  
        dtPicker.dispose();  
    });  

});