HTML5video标签使用JS控制视频效果案例
2021-07-16 14:03:03
浏览数 (2897)
很多小伙伴们都有在网页中进行观看视频的习惯，那么大家知道这是怎么进行播放的吗？那么今天我们就来说说：“HTML5中视频播放(video)和JavaScript控制视频效果怎么实现？”这个问题吧！
具体代码如下所示：
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Documenttitle>
<style>
figcaption {
text-align: center;
line-height: 150px;
font-family: "Microsoft Yahei";
font-size: 24px;
}
.player {
width: 720px;
height: 360px;
margin: 10px auto;
border: 1px solid #000;
background-color: #000;
position: relative;
border-radius: 6px;
}
.player video {
width: 720px;
height: 360px;
}
.controls {
width: 700px;
height: 40px;
background-color: rgba(255,255,0,0.3);
position: absolute;
bottom: 10px;
left: 10px;
border-radius: 10px;
}
.switch {
position: absolute;
width: 22px;
height: 22px;
background-color: red;
left: 10px;
top: 9px;
border-radius: 50%;
}
.progress {
width: 432px;
height: 10px;
position: absolute;
background-color: rgba(255,255,255,0.4);
left: 40px;
top: 15px;
border-radius: 4px;
overflow: hidden;
}
.curr-progress {
width: 0%;
height: 100%;
background-color: #fff;
}
.time {
width: 120px;
height: 20px;
text-align: center;
line-height: 20px;
font-size: 12px;
color: #fff;
position: absolute;
left: 510px;
top: 10px;
}
.extend {
position: absolute;
width: 20px;
height: 20px;
background-color: red;
right: 10px;
top: 10px;
}
style>
head>
<body>
<figure>
<figcaption>视频案例figcaption>
<div class="player">
<video src="11.mp4">video>
<div class="controls">
<a href="#" class="switch">a>
<div class="progress">
<div class="curr-progress">div>
div>
<div class="time">
<span class="curr-time">00:00:00span>/
<span class="total-time">00:00:00span>
div>
<a href="#" class="extend">a>
div>
div>
figure>
<script>
var video = document.querySelector('video');
var playBtn = document.querySelector('.switch');
var currProgress = document.querySelector('.curr-progress');
var currTime = document.querySelector('.curr-time');
var totalTime = document.querySelector('.total-time');
var extend = document.querySelector('.extend');
var tTime = 0;
playBtn.onclick = function() {
if(video.paused){ // 如果视频是暂停的
video.play(); //play()播放 load()重新加载 pause()暂停
}else{
video.pause();
}
}
//当视频能播放(已经通过网络加载完成)时
video.oncanplay = function() {
tTime = video.duration; //获取视频总时长(单位秒)
var tTimeStr = getTimeStr(tTime);
totalTime.innerHTML = tTimeStr;
}
//当视频当前播放时间更新的时候
video.ontimeupdate = function() {
var cTime = video.currentTime; //获取当前播放时间
var cTimeStr = getTimeStr(cTime);
console.log(cTimeStr);
currTime.innerHTML = cTimeStr;
currProgress.style.width = cTime/tTime*100+"%";
}
extend.onclick = function() {
video.webkitRequestFullScreen(); //视频全屏
}
//将以秒为单位的时间变成“00:00:00”格式的字符串
function getTimeStr(time) {
var h = Math.floor(time/3600);
var m = Math.floor(time%3600/60);
var s = Math.floor(time%60);
h = h>=10?h:"0"+h;
m = m>=10?m:"0"+m;
s = s>=10?s:"0"+s;
return h+":"+m+":"+s;
}
script>
body>
html>总结
通过这篇文章的分享，想必到大家对于：“HTML5中视频播放(video)和JavaScript控制视频效果怎么实现？”这个问题有所了解了吧！当然更多有关于html5这方面的内容我们都可以在W3Cschool中进行学习和了解。