【发布时间】:2016-08-03 16:31:44
【问题描述】:
我正在尝试在视频开始时淡入包含 YouTube 视频的 iframe,并在视频结束时淡出(在显示中间带有红色播放器按钮的静止图像之前)。现在,视频卡在不透明度:0。就像代码没有检测到视频的开始一样。这是我的代码(most of it is from Google):
HTML
<iframe id="player"
width="560" height="315"
src="https://www.youtube.com/embed/-K2fShrbvfY?modestbranding=1&rel=0&controls=0&enablejsapi"
frameborder="0" allowfullscreen
></iframe>
<script>
// 2. This code loads the IFrame Player API code asynchronously.
var tag = document.createElement('script');
tag.src = "https://www.youtube.com/iframe_api";
var firstScriptTag = document.getElementsByTagName('script')[0];
firstScriptTag.parentNode.insertBefore(tag, firstScriptTag);
// 3. This function creates an <iframe> (and YouTube player)
// after the API code downloads.
var player;
function onYouTubeIframeAPIReady() {
player = new YT.Player('player', {
events: {
'onReady': onPlayerReady,
'onStateChange': onPlayerStateChange
}
});
}
// 4. The API will call this function when the video player is ready.
function onPlayerReady(event) {
event.target.style.opacity = 1;
event.target.playVideo();
}
// 5. The API calls this function when the player's state changes.
// The function indicates that when playing a video (state=1),
// the player should play for six seconds and then stop.
var done = false;
function onPlayerStateChange(event) {
if (event.data == YT.PlayerState.PLAYING && !done) {
event.target.style.opacity = 0;
setTimeout(stopVideo, 6000);
done = true;
}
}
function stopVideo() {
player.stopVideo();
}
</script>
CSS
#player{
opacity: 0;
transition: all 1s;
}
我也尝试过 document.getElementById('player').style.opacity = 1; 而不是 event.target.style.opacity = 1; ,但它仍然没有淡入视频。
新代码,感谢下面的帮助。但是,我仍然得到 YouTube 水印和最后的静止图像。
<!DOCTYPE html>
<html>
<head>
<style>
#player {
display: none;
}
</style>
</head>
<body>
<!-- 1. The <iframe> (and video player) will replace this <div> tag. -->
<div id="player"></div>
<script src="https://code.jquery.com/jquery-1.12.4.min.js"></script>
<script src="http://www.youtube.com/player_api"></script>
<script>
// create youtube player
var player;
function onYouTubePlayerAPIReady() {
player = new YT.Player('player', {
height: '390',
width: '640',
videoId: '0Bmhjf0rKe8',
playerVars: {
modestbranding: 1,
rel: 0,
controls: 0,
showinfo: 0
},
events: {
'onReady': onPlayerReady,
'onStateChange': onPlayerStateChange
}
});
}
// autoplay video
function onPlayerReady(event) {
$('#player').fadeIn(function() {
event.target.playVideo();
});
}
// when video ends
function onPlayerStateChange(event) {
if (event.data === 0) {
$('#player').fadeOut();
}
}
</script>
</body>
</html>
【问题讨论】:
标签: javascript iframe youtube youtube-api