javaScript js,jQuery 常用代码 var winHeight = $(window).height(); //获取当前页面高度 $(window).resize(function(){ var thisHeight=$(this).height(); if(winHeight - thisHeight >50){ //当软键盘弹出,在这里面操作 $(".footer").css("position","static") }else{ //当软键盘收起,在此处操作 $(".footer").css("position","absolute") } });