我的网页播放youtube播放列表，并在底部显示曲目名称（整天花费了大部分时间），我认为拥有特定视频播放的缩略图是很棒的从曲目标题旁边显示的播放列表显示。我了解如何为特定视频执行此操作，但是如何为视频播放列表实施此操作？重要的是要为每首播放的新歌刷新图像。
这是我当前工作的JSFiddle：https：//jsfiddle.net/ruuml5s7/
另外，我在垂直对齐视频和聊天键之间存在问题。我还遇到了底部栏的问题，当调整屏幕大小时（不同的div aivers ablean）时，我还没有保持"完整"条，我尝试了一些想法来防止这种情况，没有任何用处。因此，任何帮助都将不胜感激！
谢谢！
html：
<!DOCTYPE html>
<html>
<head>
<title>Chat</title>
<link rel="stylesheet" href="main.css">
</head>
<div class="all-content">
<body>
<div class="header-bar">
<div class="bar">
<img src="C:UsersjlewaDesktopassetsaffinity_fm_only_letters.png" class="top-logo" style="float: left;">
<ul class="standard-nav" style="float: left;">
<li>Home</li>
<li>Lyrics Hub</li>
<li>Affinity LIVE</li>
<li>Merchandise</li>
</ul>
</div>
<div class="dropshadow"></div>
</div>
<div class="container-middle-third">
<div class="youtube-video" style="float: left;">
<div class="DJ-text">Affinity FM DJ Room</div>
<div class="DJ-underline"></div>
<div id="player" style="width: 1280px; height: 720px;"></div></div>
</div>
<div class="chat" style="float: left;">
<div class="Chat-text">Chat</div>
<div class="Chat-underline"></div>
<input type="text" class="chat-name" placeholder="Chat">
<div class="info-rect">Info</div>
<div class="chat-messages"></div>
<textarea placeholder="Join the conversation..."></textarea>
<div class="chat-status">Status: <span>Idle</span></div>
</div>
<div class="bottom-bar">
<div class="thumbnail" id="thumbnail" style="float: left"></div>
<div class="title-bar" style="float: left;">
<div class="title" id="title"></div>
<div class="dj-playing">Affinity FM is playing</div>
<div class="progress-background">
<div id="progress-bar" class="progress-bar"></div>
</div>
</div>
<div class="subscribe" style="float: left;">
<div class="g-ytsubscribe" data-channel="SAMusicPlaylist" data-layout="full" data-theme="dark" data-count="default"></div>
</div>
</div>
<script src="http://127.0.0.1:8080/socket.io/socket.io.js"></script>
<script src="https://apis.google.com/js/platform.js"></script>
<script>
(function() {
var getNode = function(s) {
return document.querySelector(s);
},
// Get required nodes
status = getNode('.chat-status span'),
messages = getNode('.chat-messages'),
textarea = getNode('.chat textarea'),
chatName = getNode('.chat-name'),
statusDefault = status.textContent,
setStatus = function(s){
status.textContent = s;
if(s !== statusDefault){
var delay = setTimeout(function(){
setStatus(statusDefault);
clearInterval(delay);
}, 3000);
}
};
//try connection
try{
var socket = io.connect('http://127.0.0.1:8080');
} catch(e){
//Set status to warn user
}
if(socket !== undefined){
//Listen for output
socket.on('output', function(data){
if(data.length){
//Loop through results
for(var x = 0; x < data.length; x = x + 1){
var message = document.createElement('div');
message.setAttribute('class', 'chat-message');
message.textContent = ': ' + data[x].message;
var name=document.createElement('span');
name.setAttribute('class', 'userName');
name.textContent = data[x].name;
message.insertBefore(name, message.firstChild);
//Append
messages.appendChild(message);
messages.insertBefore(message, messages.firstChild);
}
}
});
//Listen for a status
socket.on('status', function(data){
setStatus((typeof data === 'object') ? data.message : data);
if(data.clear === true){
textarea.value = '';
}
});
//Listen for keydown
textarea.addEventListener('keydown', function(event){
var self = this,
name = chatName.value;
if(event.which === 13 && event.shiftKey === false){
socket.emit('input', {
name: name,
message: self.value
});
}
});
}
})();
</script>
<script>
var time_total;
var timeout_setter;
var player;
var tag = document.createElement("script");//This code loads the IFrame Player API code asynchronously
tag.src = "https://www.youtube.com/iframe_api";
var firstScriptTag = document.getElementsByTagName("script")[0];
firstScriptTag.parentNode.insertBefore(tag, firstScriptTag);
//This function creates an <iframe> (and YouTube player) OR uses the iframe if it exists at the "player" element after the API code downloads
function onYouTubeIframeAPIReady()
{
player = new YT.Player("player",
{
height: "853",
width: "480",
/* videoId: "GGmxVDXM5X2UxaP9PvWQ4Z171DXyGcq", */
playerVars: {
listType:'playlist',
list: 'PL_GGmxVDXM5X2UxaP9PvWQ4Z171DXyGcq',
controls: '0',
html5: '1',
cc_load_policy: '0',
disablekb: '1',
iv_load_policy: '3',
modestbranding: '1',
showinfo: '0',
rel: '0',
},
events:
{
"onReady": onPlayerReady,
"onStateChange": onPlayerStateChange
}
});
}
var num = (1 + Math.floor(Math.random() * 10));
//The API will call this function when the video player is ready
function onPlayerReady(event)
{
event.target.playVideo();
time_total = convert_to_mins_and_secs(player.getDuration(), 1);
loopy();
player.addEventListener('onStateChange', 'onPlayerStateChange');
player.setShuffle( {
'shufflePlaylist': 1
} );
}
function loopy()
{
var current_time = convert_to_mins_and_secs(player.getCurrentTime(), 0);
document.getElementById("progress-bar").style.width = (player.getCurrentTime()/player.getDuration())*100+"%";
console.log( current_time + " / " + time_total);
timeout_setter = setTimeout(loopy, 300);
}
function convert_to_mins_and_secs(seconds, minus1)
{
var mins = (seconds>=60) ?Math.round(seconds/60):0;
var secs = (seconds%60!=0) ?Math.round(seconds%60):0;
var secs = (minus1==true) ?(secs-1):secs; //Youtube always displays 1 sec less than its duration time!!! Then we have to set minus1 flag to true for converting player.getDuration()
var time = mins + ":" + ((secs<10)?"0"+secs:secs);
return time;
}
// 5. The API calls this function when the player's state changes
function onPlayerStateChange(event)
{
if (event.data == YT.PlayerState.ENDED)
{
console.log("END!");
clearTimeout(timeout_setter);
document.getElementById("progress-bar").style.cssText = "transition: none;";
}
else if (event.data == YT.PlayerState.PLAYING)
{
console.log("PLAYING");
loopy();
document.getElementById("progress-bar").style.cssText = "transition: all 300ms linear 0s;";
console.log(player.getPlayerState());
if (player.getPlayerState() == 1) {
document.getElementById( "title" ).innerText = player.getVideoData().title;
}
}
else if (event.data == YT.PlayerState.PAUSED)
{
event.target.playVideo();
console.log("PLAUSED");
}
else
{
console.log(event.data);
}
}
</script>
</body>
</div>
</html>
CSS：
body {
background-color: #0f0f17;
margin: 0px;
width: 100%;
}
.container-middle-third{
margin-top: 20px;
margin-left: 70px;
}
body,
textarea,
input {
font: 13px "Raleway", sans-serif;
color: #ffffff;
}
.all-content{
width: 1920px;
display: block;
margin-left: auto;
margin-right: auto;
}
.bar{
height: 90px;
width: 1920px;
background-color: #15151d;
}
.top-logo{
max-height: 100%;
max-width: 100%;
margin-left: 4%
}
/*li{
display: inline;
padding-right: 20px;
}
.standard-nav {
list-style: none;
padding: 0;
text-transform: uppercase;
line-height: 13px;
font-weight: 700;
margin-left: 63%;
max-height: 100%;
} */
.DJ-text{
font-weight: 700;
/*position:relative;*/
text-transform: uppercase;
}
.Chat-text{
font-weight: 700;
text-transform: uppercase;
}
.DJ-underline{
width: 1280px;
height: 1px;
position:relative;top:10px;
background-color: #3f3f45;
margin: 0px 0px 40px;
}
.Chat-underline{
width: 100%;
position:relative;
/*left:-140px;*/
float:right;
height: 1px;
position:relative;top:10px;
background-color: #3f3f45;
margin: 0px 0px 40px;
}
.youtube-video{
position: relative;
}
.transparent-layer{
width: 850px;
height: 477px;
pointer-events: none;
background-color: #ffffff;
}
.ad{
width: 728px;
height: 90px;
border: 1px solid #000000;
margin-left: 11px;
margin-top: 20px;
}
.chat {
position: relative;
min-width: 400px;
margin: 0px 0px 0px 112px;
}
.chat-messages,
.chat-textarea,
.chat-name {
border: 1px solid #1a1a23;
background-color: #1a1a23;
}
.userName{
font-weight: 700;
color: #079ce0;
}
.chat-messages {
width:380px;
height:586px;
overflow-y:scroll;
padding:10px;
}
.chat-message {
margin-bottom:10px;
}
.info-rect{
height: 40px;
width: 180px;
padding:10px;
max-width: 100%;
margin:0;
border:0;
display: flex;
align-items: center;
justify-content: center;
font-weight: 700;
text-transform: uppercase;
background-color: #15151d
}
.chat-name{
height: 40px;
max-width: 100%;
width: 180px;
padding:10px;
border:0;
margin:0;
font-weight: 700;
text-transform: uppercase;
float:left;
text-align: center;
}
.chat textarea {
width:380px;
padding:10px;
margin:0;
border-top:0;
max-width:100%;
border-top: 1px solid #0f0f17;
border-bottom: 1px solid #1a1a23;
border-right: 1px solid #1a1a23;
border-left: 1px solid #1a1a23;
background-color: #1a1a23;
}
.chat-status {
color: #bbb;
opacity: 0;
background-color: #0f0f17;
}
.info-rect,
.chat textarea,
.chat-name {
max-width: 100%;
}
.bottom-bar{
position: absolute;
bottom: 0;
display:table;
}
.thumbnail{
width: 90px;
height: 80px;
opacity: 0.2;
background-color: #ffffff;
}
.title-bar{
width:1372px;
height: 80px;
background-color: #1a1a23;
}
.title{
font-weight: 700;
text-transform: uppercase;
margin-left: 30px;
margin-top: 25px;
}
.dj-playing{
margin-left: 30px;
}
.progress-background{
width: 1372px;
height: 3px;
background-color: #313139;
position: fixed;
bottom: 0;
}
.progress-bar{
height: 3px;
width: 0px;
transition: all 300ms linear;
background-color: #fa1d57;
bottom: 0;
}
.subscribe{
width: 458px;
height: 80px;
background-color: #15151d;
display:table-cell;
}
.g-ytsubscribe{
width: 450px;
display: block;
margin-left: auto;
margin-right: auto;
}
这次您必须将键与YouTube API 3。
您可以使用JS或Php。
做到这一点php
<?
$api_key = "AIzaSyDRfgPj9a2vnckVkSGoKktNfrozbMvjkdw";
$play_list_id = "PLcV3JzAz3r32-on4upkyAv0VtvYXAl-Nz";
$url = "https://www.googleapis.com/youtube/v3/playlists?part=snippet&id=" . $play_list_id;
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_TIMEOUT, 30);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
$response_raw = curl_exec($ch);
$response = json_decode($response_raw);
echo "default image :" . $response->items[0]->snippet->thumbnails->default->url;
echo "<br />n<br />n";
echo "medium image :" . $response->items[0]->snippet->thumbnails->medium->url;
echo "<br />n<br />n";
echo "maxres image :" . $response->items[0]->snippet->thumbnails->maxres->url;
echo "<br />n<br />n";
echo print_r($response, 1);
?>
脚本中最重要的是带有查询参数的 url 。只需记住用自己的 $ api_key 和 $ play_list_id 用自己的。
现在使用javascript，几乎是同一回事。
JS
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.0/jquery.min.js"></script>
<script>
function make_request()
{
var response = "";
var response1 = "";
var api_key = "AIzaSyBaS4_vwohJW7Ndb9EkjSqsoD75O4f4jXI";
var play_list_id = "PLcV3JzAz3r32-on4upkyAv0VtvYXAl-Nz";
var url = "https://www.googleapis.com/youtube/v3/playlists?part=snippet&id=" + play_list_id + "&key=" + api_key;
$.ajax
({
url: url,
dataType: "json",
type: "get",
async: false,
success: function(data)
{
response = JSON.stringify(data);
response1 = data;
}
});
alert(response1.items[0].snippet.thumbnails.default.url);
console.log(response1.items[0].snippet.thumbnails.default.url);
console.log(response);
}
function init()
{
gapi.client.setApiKey("AIzaSyBaS4_vwohJW7Ndb9EkjSqsoD75O4f4jXI");
gapi.client.load('youtube', 'v3').then(make_request);
}
</script>
<script src="https://apis.google.com/js/client.js?onload=init"></script>
看一下行动中的人：
- http://lespointscom.com/a/misc/demo/2016_06_21/curl_any.php
- http://lespointscom.com/a/misc/demo/2016_06_21/curl_any.zip
- http://lespointscom.com/a/misc/demo/2016_06_21/gapi_1.html
但请记住：当您使用PHP进行操作时，您必须创建一个Google服务器密钥。当您与JS一起做时，猜怎么着？您使用浏览器键进行。但最重要的是，请记住在开发人员控制台中启用YouTube数据API 3！
参考获取钥匙：https://developers.google.com/api-client-library/javascript/start/start-js#choose-google-services