场景需求:

在大屏幕上,消息会进行一个实时滚动播报的效果,将现有的内容进行一个来回滚动的播放~~

代码:

<!DOCTYPE HTML>
<html xmlns:th="http://www.thymeleaf.org">
<head>
<title>复选框checkbox自定义样式</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<link rel="stylesheet" href="https://cdn.bootcss.com/twitter-bootstrap/4.3.1/css/bootstrap.min.css">
<script src="https://cdn.bootcss.com/jquery/3.4.1/jquery.min.js"></script>
<script src="https://cdn.bootcss.com/twitter-bootstrap/4.3.1/js/bootstrap.min.js"></script>
<style>
* {
margin: 0;
padding: 0;
}

.contScend {
width: 400px;
height: 200px;
background: #000000;
margin: 20px auto;
overflow: hidden;
}

.contScend ul {
list-style: none;
width: 100%;
height: 100%;
color:red;
font-size: 13px;
}

.contScend ul li {
width: 100%;
height: 40px;
box-sizing: border-box;
line-height: 40px;
text-align: center;
}

</style>
</head>
<body>
<!-- 中间部分 -->
<div class="contScend">

</div>
</body>
<script type="text/javascript">
$.ajax({
url: "test.json",
type: 'GET',
dataType: 'json',
success: function(data) {
var html = "";
html += '<ul>';
$.each(data, function(i, item) { //
html += '<li>' + item.name + ':' + item.numb + '人' + '</li>';

});
html += '</ul>';
$(".contScend").html(html);
scroll();
}
});

function scroll() {
//获得当前<ul>
var $uList = $(".contScend ul");
var timer = null;
//触摸清空定时器
$uList.hover(function() {
clearInterval(timer);
},
function() { //离开启动定时器
timer = setInterval(function() {
scrollList($uList);
},
1000);
}).trigger("mouseleave"); //自动触发触摸事件
//滚动动画
function scrollList(obj) {
//获得当前<li>的高度
var scrollHeight = $("ul li:first").height();
//滚动出一个<li>的高度
$uList.stop().animate({
marginTop: -scrollHeight
},
600,
function() {
//动画结束后,将当前<ul>marginTop置为初始值0状态,再将第一个<li>拼接到末尾。
$uList.css({
marginTop: 0
}).find("li:first").appendTo($uList);
});
}
}
</script>
</html>

test.json

[{
"name": "体验区统计",
"numb": 0
}, {
"name": "test909",
"numb": 0
}, {
"name": "test910",
"numb": 0
}, {
"name": "111",
"numb": 0
}, {
"name": "test",
"numb": 0
}, {
"name": "test11111",
"numb": 0
}, {
"name": "记忆区统计",
"numb": 0
}]

效果如下:


jQuery实现大屏滚动播放的效果_html