嵌入式Youtube不在UIWebView中自动播放视频 [英] Embedded Youtube not autoplaying video in UIWebView
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问题描述
我正在尝试在UIWebView中嵌入YouTube视频并让它自动播放。显然这不起作用。这与：
I am trying to embed a youtube video in a UIWebView and have it autoplay. Apparently this does not work. Is this related to:
或者它是某种错误？
这是我的html文件：
Here is my html file:
<html>
<head>
<script>
document.ontouchmove=function(e){ e.preventDefault(); };
</script>
</head>
<body style="margin:0px;" bgcolor="#000000">
<!-- 1. The <div> tag will contain the <iframe> (and video player) -->
<div id="player" style="text-align:center;"></div>
<script>
// 2. This code loads the IFrame Player API code asynchronously.
var tag = document.createElement('script');
tag.src = "http://www.youtube.com/player_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 onYouTubePlayerAPIReady() {
player = new YT.Player('player', {
height: '400',
width: '768',
videoId: 'HYlD0KXujAk',
playerVars: {'autoplay' : 1},
events: {
'onStateChange': onPlayerStateChange
}
});
}
// 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) {
}
function stopVideo() {
player.stopVideo();
}
</script>
</body>
</html>
推荐答案
这不是错误，这是默认行为。 UIWebView 在没有用户干预的情况下不会自动播放任何内容，除非您设置 UIWebView 的 mediaPlaybackRequiresUserAction 属性否（默认为 YES ）。然后它会工作。
No this is no bug, this is default behavior. UIWebView will not play anything automatically without user intervention, except if you set UIWebView's mediaPlaybackRequiresUserAction property to NO (it's YES by default) yourself. Then it will work.
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