我希望我可以循环播放这一系列的视频和图像,我该怎么做?
I wish I could loop this array of videos and images, how can I do?
在此演示中 http://jsfiddle.net/mdz82oLn/ 我插入了视频 (ID) 和图像(png、jpeg 等),它们也通过自定义按钮显示。该演示在视觉中完美运行,但在循环中到达最后一个视频的结尾 returns 而它应该从列表中的第一个视频重新开始,如何集成此功能?
var tag = document.createElement('script');
tag.src = "https://www.youtube.com/iframe_api";
var firstScriptTag = document.getElementsByTagName('script')[0];
firstScriptTag.parentNode.insertBefore(tag, firstScriptTag);
const playerElement = document.querySelector('#player');
const imageElement = document.querySelector('#slide');
const videos = {
'RGpr3Y6Q-1M': 'http://nothingbutgeek.com/wp-content/uploads/2018/06/automata_16x9.png',
'btxdcqLOGuc': 'https://live.staticflickr.com/2400/2078946248_d063d5a563_b.jpg',
'CIx0a1vcYPc': 'https://i.ytimg.com/vi/CIx0a1vcYPc/maxresdefault.jpg',
};
const videoIds = Object.keys(videos);
function onYouTubeIframeAPIReady() {
function onPlayerReady({ target }) {
var playButton = document.getElementById("play-button");
playButton.addEventListener("click", function() {
target.playVideo();
});
var pauseButton = document.getElementById("pause-button");
pauseButton.addEventListener("click", function() {
target.pauseVideo();
});
var next = document.getElementById("next");
next.addEventListener("click", function() {
target.nextVideo();
});
var pre = document.getElementById("previous");
pre.addEventListener("click", function() {
target.previousVideo();
});
target.loadPlaylist({
playlist: videoIds
});
}
function onPlayerStateChange({ data, target }) {
switch(data) {
case YT.PlayerState.ENDED:
target.nextVideo();
break;
case YT.PlayerState.BUFFERING:
const playlist = target.getPlaylist();
const playlistIndex = target.getPlaylistIndex();
const currentId = playlist[playlistIndex];
const image = videos[currentId];
if (imageElement.src !== image) {
imageElement.src = image;
}
break;
}
}
const player = new YT.Player(playerElement, {
height: '405',
width: '720',
playerVars: {
controls: 1,
},
events: {
'onReady': onPlayerReady,
'onStateChange': onPlayerStateChange
}
});
}
如果我理解正确的话,您卡在了最后一个视频上,想从 1 个视频开始循环:
在那种情况下,这样的更改应该有效:
var next = document.getElementById("next");
next.addEventListener("click", function() {
target.nextVideo();
if(target.getPlaylistIndex() == videoIds.length -1){
target.loadPlaylist({
playlist: videoIds
});
}
});
你也可以像这样更新 switch case:
case YT.PlayerState.ENDED: {
if (target.getPlaylistIndex() == videoIds.length - 1) {
target.loadPlaylist({
playlist: videoIds
});
}
break;
}
在此演示中 http://jsfiddle.net/mdz82oLn/ 我插入了视频 (ID) 和图像(png、jpeg 等),它们也通过自定义按钮显示。该演示在视觉中完美运行,但在循环中到达最后一个视频的结尾 returns 而它应该从列表中的第一个视频重新开始,如何集成此功能?
var tag = document.createElement('script');
tag.src = "https://www.youtube.com/iframe_api";
var firstScriptTag = document.getElementsByTagName('script')[0];
firstScriptTag.parentNode.insertBefore(tag, firstScriptTag);
const playerElement = document.querySelector('#player');
const imageElement = document.querySelector('#slide');
const videos = {
'RGpr3Y6Q-1M': 'http://nothingbutgeek.com/wp-content/uploads/2018/06/automata_16x9.png',
'btxdcqLOGuc': 'https://live.staticflickr.com/2400/2078946248_d063d5a563_b.jpg',
'CIx0a1vcYPc': 'https://i.ytimg.com/vi/CIx0a1vcYPc/maxresdefault.jpg',
};
const videoIds = Object.keys(videos);
function onYouTubeIframeAPIReady() {
function onPlayerReady({ target }) {
var playButton = document.getElementById("play-button");
playButton.addEventListener("click", function() {
target.playVideo();
});
var pauseButton = document.getElementById("pause-button");
pauseButton.addEventListener("click", function() {
target.pauseVideo();
});
var next = document.getElementById("next");
next.addEventListener("click", function() {
target.nextVideo();
});
var pre = document.getElementById("previous");
pre.addEventListener("click", function() {
target.previousVideo();
});
target.loadPlaylist({
playlist: videoIds
});
}
function onPlayerStateChange({ data, target }) {
switch(data) {
case YT.PlayerState.ENDED:
target.nextVideo();
break;
case YT.PlayerState.BUFFERING:
const playlist = target.getPlaylist();
const playlistIndex = target.getPlaylistIndex();
const currentId = playlist[playlistIndex];
const image = videos[currentId];
if (imageElement.src !== image) {
imageElement.src = image;
}
break;
}
}
const player = new YT.Player(playerElement, {
height: '405',
width: '720',
playerVars: {
controls: 1,
},
events: {
'onReady': onPlayerReady,
'onStateChange': onPlayerStateChange
}
});
}
如果我理解正确的话,您卡在了最后一个视频上,想从 1 个视频开始循环:
在那种情况下,这样的更改应该有效:
var next = document.getElementById("next");
next.addEventListener("click", function() {
target.nextVideo();
if(target.getPlaylistIndex() == videoIds.length -1){
target.loadPlaylist({
playlist: videoIds
});
}
});
你也可以像这样更新 switch case:
case YT.PlayerState.ENDED: {
if (target.getPlaylistIndex() == videoIds.length - 1) {
target.loadPlaylist({
playlist: videoIds
});
}
break;
}