概述
本文讲述在mui框架下实现上下滑动控制显隐的效果。
效果
实现
html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width,initial-scale=1.0,maximum-scale=1.0,user-scalable=no" />
<title></title>
<link rel="stylesheet" href="css/drop.css">
<link rel="stylesheet" href="mui/mui.css">
<script src="js/vue.js"></script>
</head>
<body>
<div
id="app"
v-cloak>
<div
id="bottom"
:class="isShow ? 'show' : 'hide'"
class="bottom-box">
</div>
</div>
<script src="mui/mui.js"></script>
<script src="js/drop.js"></script>
</body>
</html>
css
@charset "utf-8";
html,
body,
#app {
width: 100%;
height: 100%;
overflow: hidden;
padding: 0;
margin: 0;
}
.bottom-box {
width: 100%;
border-top-left-radius: 1rem;
border-top-right-radius: 1rem;
background-color: #dddddd;
position: absolute;
bottom: 0;
&.hide {
height: 3rem;
transition: height 1s;
}
&.show {
height: 100%;
transition: height 1s;
}
}
js
var app = new Vue({
el: '#app',
mounted() {
this.init();
},
data() {
return {
isShow: false
}
},
methods: {
init() {
const self = this;
mui.init({
gestureConfig: {
swipeup:true,//向上滑动
swipedown:true,
dragstart:true,//开始拖动
drag:true,//拖动中
dragend:true//拖动结束
}
});
const bottom = document.getElementById('bottom');
let startY = 0;
document.addEventListener("dragstart",function(e){
startY = e.detail.center.y;
});
document.addEventListener("drag",function(e){
const dragY = e.detail.center.y;
const deltY = dragY - startY;
let objH = bottom.offsetHeight;
// 往上拉
if (deltY < 0 && !self.isShow) {
objH = objH + Math.abs(deltY);
bottom.style.height = objH + 'px';
}
// 往下拉
if (deltY > 0 && self.isShow) {
objH = objH - Math.abs(deltY);
bottom.style.height = objH + 'px';
}
});
document.addEventListener("dragend",function(e){
const endY = e.detail.center.y;
const deltY = endY - startY;
// 下拉
let objH = bottom.offsetHeight;
if (deltY > 0) {
objH = '3rem';
} else { // 上拉
objH = '100%';
}
bottom.style.height = objH;
setTimeout(() => {
self.isShow = deltY < 0;
}, 1100);
});
}
}
});
