我有一个自适应视频墙,可以从youtube频道获取最新视频,并将其显示在页面上。我需要延迟加载iframe。
我已经到了iframe延迟加载响应图像的位置,直到它们被点击为止。我遇到的问题与我所做的无关,当您单击一个图像以加载iframe时,所有iframe都将加载到其余图像下方。我只需要单个缩略图即可触发其下方的iframe。我知道网站上也有类似的解决方案,所以请不要将其标记为重复,因为这些解决方案不适合此代码。
https://codepen.io/anon/pen/mZWZOe
我目前没有错误,并且尝试添加类等,但是如果单击任何缩略图,循环仍会加载所有iframe。
<style>
body {
background: -webkit-radial-gradient(rgb(248, 248, 248), rgb(129, 171, 212));
background: radial-gradient(rgb(248, 248, 248), rgb(129, 171, 212));
}
.youtubevideowrap{
width: 80%;
max-width: 640px;
margin: 0 auto 20px;
}
.video-container {
position:relative;
padding-bottom:56.25%;
padding-top:30px;
height:0;
overflow:hidden;
}
.video-container iframe, .video-container object, .video-container embed {
position:absolute;
top:0;
left:0;
width:100%;
height:100%;
}
.covers{
position:relative;
width:100%;
top:-50px;
}
</style>
<div class="youtubevideowrap">
<div class="video-container">
<iframe class="latestVideoEmbed" cid="UCsxtaXJZu0Af01AfcZiFMpA" width="600" height="340" frameborder="0" allowfullscreen></iframe>
</div>
</div>
<div class="youtubevideowrap">
<div class="video-container">
<iframe class="latestVideoEmbed" vnum='1' cid="UCsxtaXJZu0Af01AfcZiFMpA" width="600" height="340" frameborder="0" allowfullscreen></iframe>
</div>
</div>
<div class="youtubevideowrap">
<div class="video-container">
<iframe class="latestVideoEmbed" vnum='2' cid="UCsxtaXJZu0Af01AfcZiFMpA" width="600" height="340" frameborder="0" allowfullscreen></iframe>
</div>
</div>
<div class="youtubevideowrap">
<div class="video-container">
<iframe class="latestVideoEmbed" vnum='3' cid="UCsxtaXJZu0Af01AfcZiFMpA" width="600" height="340" frameborder="0" allowfullscreen></iframe>
</div>
</div>
<div class="youtubevideowrap">
<div class="video-container">
<iframe class="latestVideoEmbed" vnum='4' cid="UCsxtaXJZu0Af01AfcZiFMpA" width="600" height="340" frameborder="0" allowfullscreen></iframe>
</div>
</div>
<div class="youtubevideowrap">
<div class="video-container">
<iframe class="latestVideoEmbed" vnum='5' cid="UCsxtaXJZu0Af01AfcZiFMpA" width="600" height="340" frameborder="0" allowfullscreen></iframe>
</div>
</div>
<script>
var reqURL = "https://api.rss2json.com/v1/api.json?rss_url=" + encodeURIComponent("https://www.youtube.com/feeds/videos.xml?channel_id=");
function loadVideo(iframe){
$.getJSON( reqURL + iframe.getAttribute('cid'),
function(data) {
var videoNumber = (iframe.getAttribute('vnum')? Number(iframe.getAttribute('vnum')):0);
console.log(videoNumber);
var link = data.items[videoNumber].link;
id = link.substr(link.indexOf("=") + 1);
$(iframe).parent().append( "<img class='covers' src='https://img.youtube.com/vi/"+id + "/0.jpg'>" );
$(iframe).attr('vid', ''+id);
$('.covers').click(function(){
$(this).css("display","none");
var vid = (iframe.getAttribute('vid'));
$(iframe).attr("src","https://youtube.com/embed/"+vid + "?rel=0&autoplay=1&autohide=1&modestbranding=1"); });
}
);
}
var iframes = document.getElementsByClassName('latestVideoEmbed');
for (var i = 0, len = iframes.length; i < len; i++){
loadVideo(iframes[i]);
}
</script>
答案 0 :(得分:0)
这里仍然没有喜悦。只要它允许从渠道中拉出,也欢迎其他建议。
答案 1 :(得分:0)
首先,我建议不要再将jQuery用于这种简单的dom操作。
要解决此问题,我建议创建一个img元素,而不是为cover元素传递字符串,然后直接将点击直接绑定到img元素。因此,您的荷载框架功能如下所示:
function loadVideo(iframe){
$.getJSON( reqURL + iframe.getAttribute('cid'),
function(data) {
var videoNumber = (iframe.getAttribute('vnum')?Number(iframe.getAttribute('vnum')):0);
console.log(videoNumber);
var link = data.items[videoNumber].link;
id = link.substr(link.indexOf("=") + 1);
// Create Element
const coverImg = document.createElement('img');
coverImg.classList.add('covers')
coverImg.setAttribute('src', 'https://img.youtube.com/vi/' + id + '/0.jpg')
$(iframe).parent().append(coverImg); // Append the new element
$(iframe).attr('vid', ''+id);
$(coverImg).click(function(evt){ //Bind the click directly to the new cover image element
$(this).css("display","none");
var vid = (iframe.getAttribute('vid'));
$(iframe).attr("src","https://youtube.com/embed/"+vid + "?rel=0&autoplay=1&autohide=1&modestbranding=1"); });
}
);
}