我想要一个播放/暂停切换按钮来控制我的 YouTube 视频。
<a id="play-button">Play / Pause</a>
现在它只是一个链接。这是 onPlayerReady 函数的 javascript 代码
function onPlayerReady(event) {
var playButton = document.getElementById("play-button");
playButton.addEventListener("click", function(event) {
if (event.data==YT.PlayerState.PLAYING) {
player.pauseVideo();
}else {
player.playVideo();
}
});
出于某种原因,当我单击链接时,它总是执行 else 命令。我怎样才能让它识别出视频当前正在播放?有没有更好的方法来执行此播放/暂停切换操作?
onPlayerStateChange 的解决方案
function onPlayerStateChange(event) {
if (event.data == YT.PlayerState.BUFFERING) {
event.target.setPlaybackQuality('hd1080');
}
if (event.data == YT.PlayerState.PAUSED) {
$("#play-button").attr("src", "http://www.beached.tv/assets/play-0a292db2c7cb500e5e768d0222ef1f94.svg");
this.is_playing = false;
}
if (event.data == YT.PlayerState.PLAYING) {
$("#play-button").attr("src", "http://www.beached.tv/assets/pause-c1c0a3d060f908372ebecf2eb7e7c018.svg");
this.is_playing = true;
}
}
完整代码
<div id="centerplayer">
<div id="player"></div>
<script>
var is_playing = false;
var fullscreen = false;
var live = true;
var tag = document.createElement('script');
tag.src = "https://www.youtube.com/iframe_api";
var firstScriptTag = document.getElementsByTagName('script')[0];
firstScriptTag.parentNode.insertBefore(tag, firstScriptTag);
var player;
function onYouTubePlayerAPIReady() {
player = new YT.Player('player', {
height: '600',
width: '1067',
playerVars:{
autoplay: 1,
controls: 0,
rel: 0,
iv_load_policy: 3,
showinfo: 0
},
loadPlaylist:{
listType:'playlist'
},
events: {
'onReady': onPlayerReady,
'onStateChange': onPlayerStateChange,
'onError': onErrorDetect
}
});
}
function onErrorDetect(event){
if (event.data == 100) {
//video request was not found, error occurs when video has been removed or has been marked as private
event.target.nextVideo();
} else{
location.reload();
}
}
function onPlayerReady(event) {
event.target.setPlaybackQuality('default');
event.target.loadPlaylist(gon.playlist,gon.s_index,gon.s_time);
event.target.setLoop(true);
//PLAYER CONTROLS
var playButton = document.getElementById("play-button");
var that = this;
playButton.addEventListener("click", function(click_event) {
if (that.is_playing) {
$("#play-button").attr("src", "http://www.beached.tv/assets/pause-c1c0a3d060f908372ebecf2eb7e7c018.svg");
// if(live){
// var liveimg = document.getElementById('live-icon');
// liveimg.parentNode.removeChild(liveimg);
// live = false;
// }
player.pauseVideo();
}else {
$("#play-button").attr("src", "http://www.beached.tv/assets/play-0a292db2c7cb500e5e768d0222ef1f94.svg");
player.playVideo();
}
});
var muteButton = document.getElementById("mute-button");
muteButton.addEventListener("click", function() {
if(player.isMuted()){
$("#mute-button").attr("src", "http://www.beached.tv/assets/sound-2850c52028b16dd2c2e264c5dddb39ba.svg");
player.unMute();
}else{
$("#mute-button").attr("src", "http://www.beached.tv/assets/mute-8d50674fdbcdd2cc9597f009be41cea9.svg");
player.mute();
}
});
var enlargeButton = document.getElementById("enlarge-button");
enlargeButton.addEventListener("click", function() {
if (fullscreen){
$("#enlarge-button").attr("src", "http://www.beached.tv/assets/resize-enlarge-a44a4204dca596b45aacb25610ee3189.svg");
player.setSize(1067,600);
fullscreen = false;
}else{
$("#enlarge-button").attr("src", "http://www.beached.tv/assets/resize-shrink-f63cf0e6ab1eb2bb8f7223798c4fc9c5.svg");
player.setSize(1410,793);
fullscreen = true;
}
});
}
function onPlayerStateChange(event) {
if (event.data == YT.PlayerState.BUFFERING) {
event.target.setPlaybackQuality('hd1080');
}
if (event.data == YT.PlayerState.PAUSED) {
$("#play-button").attr("src", "http://www.beached.tv/assets/play-0a292db2c7cb500e5e768d0222ef1f94.svg");
this.is_playing = false;
if(live){
var liveimg = document.getElementById('live-icon');
liveimg.parentNode.removeChild(liveimg);
live = false;
}
}
if (event.data == YT.PlayerState.PLAYING) {
$("#play-button").attr("src", "http://www.beached.tv/assets/pause-c1c0a3d060f908372ebecf2eb7e7c018.svg");
this.is_playing = true;
var current_time = Math.round(new Date().getTime() / 1000);
if (current_time > gon.end_of_stream){
// location.reload();
}
}
}
</script>
最佳答案
onPlayerReady 参数 event 不可访问,因为您传递给 addEventListener 的函数也在使用该变量名称
因此使用另一个变量名称,例如:
playButton.addEventListener("click", function(click_event) {
实际上还有一个更大的错误。您想使用 onPlayerStateChange 的事件来告诉您状态。这是一个工作片段:
var is_playing = false;
function onPlayerReady(event) {
var playButton = document.getElementById("play-button");
var that = this;
playButton.addEventListener("click", function(click_event) {
if (that.is_playing) {
player.pauseVideo();
}else {
player.playVideo();
}
});
}
function onPlayerStateChange(event) {
if (event.data == YT.PlayerState.PLAYING && !done) {
this.is_playing = true;
}
}
关于javascript - YouTube 视频的播放/暂停按钮,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/24658373/