让背景颜色随ViewPager的滑动而渐变
![](http://img-cdn-tc.dcloud.net.cn/uploads/questions/20160225/e006c3882ac7a68d1604177b0915d793.png)
最佳回复
火岚 (作者)
谢谢,分享下写法
document.addEventListener("scroll",function () {
var scrolllenth=document.getElementById("div_listenner_id").getBoundingClientRect().top;
document.getElementById("div_change").style.background='rgba(246,172,10,'+scrolllenth+')';
});