1. 下面是实现iphonex 刘海屏前端网页适配的一个插值算法小案例
Title
body, ul {
margin: 0;
}
ul {
padding-left: 10px;
}
li {
list-style: none;
}
.phone {
position: relative;
width: 600px;
height: 300px;
border: 10px solid #000;
border-radius: 30px;
margin: 100px auto 0;
}
.content, .content ul {
width: 100%;
height: 100%;
}
.content {
overflow-x: hidden;
overflow-y: scroll;
}
.camera {
position: absolute;
top: 60px;
left: 0;
width: 26px;
height: 180px;
background-color: black;
border-radius: 0 30px 30px 0;
}
li + li {
border-top: 1px solid #ccc;
}
li {
font-size: 16px;
padding: 5px;
}
*::-webkit-scrollbar {
padding-left: 100px;
}
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~~function () {
var thresh = 20;
var maxoffset = 50;
var aLi = document.querySelectorAll('li');
var oCamera = document.querySelector('.camera');
var oContent = document.querySelector('.content')
var camPs = oCamera.getBoundingClientRect();
~~function () {
oContent.onscroll = arguments.callee;
for (var item of aLi) {
var itemRect = item.getBoundingClientRect();
var dtf = itemRect.bottom - camPs.top
var dtb = itemRect.bottom - camPs.bottom
if (Math.abs(dtf) < 20) {
item.style.transform = 'translateX(' + lerp(0, 30, cal(dtf, 20)) + "px)";
} else if (dtf > 20 && dtb < -20) {
item.style.transform = 'translateX(' + 30 + "px)";
} else if (Math.abs(dtb) <20) {
item.style.transform = 'translateX(' + lerp(30, 0, cal(dtb, 20)) + "px)";
} else {
//全部移除摄像头区域
item.style.transform = 'translateX(' + 0 + "px)";
}
}
}()
}()
/**
* @param 插值算法
* @param p1 初始化状态
* @param p2 结束状态
* @param t 时间函数 (0-100%)
*
* 返回p1 到 p2 之间的值
*/
function lerp(p1, p2, t) {
return (p2 - p1) * t + p1
}
function cal(dis, thr) {
return (dis + thr) / (thr * 2)
}
以上所述是小编给大家简介的iphone刘海屏网页适配方法详解整合，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对乐购源码网址的支持！
