Html Youtube 嵌入视频：自动播放功能在 iphone 中不起作用
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Youtube embedded video: autoplay feature not working in iphone
提问by Avisek Chakraborty
I have a youtube embeded video link in HTML5 page, which I want to autoplay.
我在 HTML5 页面中有一个 youtube 嵌入的视频链接，我想自动播放。
The following code works in browsers, but in iphone; its not working and needs an extra click.
以下代码适用于浏览器，但适用于 iphone；它不工作，需要额外的点击。
<iframe type="text/html" width="125" height="100" src="http://www.youtube.com/embed/d_g0251EfB8?autoplay=1" frameborder="0"></iframe>
what to do
该怎么办
回答by Mike
It can't be done. For various reasons (including, but not limited to data usage), Apple doesn't allow auto-playing of videos.
做不到。出于各种原因（包括但不限于数据使用），Apple 不允许自动播放视频。
See the accepted answer to this question.
请参阅此问题的已接受答案。
回答by Apurv Soni
I have tried with following and Youtube video successfully autoplays in fullscreen when web view finish loading:
我尝试了以下操作，当 Web 视图完成加载时，Youtube 视频成功地以全屏方式自动播放：
[self.webView setAllowsInlineMediaPlayback:YES];
[self.webView setMediaPlaybackRequiresUserAction:NO];
[self.view addSubview:self.webView];
NSString* embedHTML = [NSString stringWithFormat:@"\
<html>\
<body style='margin:0px;padding:0px;'>\
<script type='text/javascript' src='http://www.youtube.com/iframe_api'></script>\
<script type='text/javascript'>\
function onYouTubeIframeAPIReady()\
{\
ytplayer=new YT.Player('playerId',{events:{onReady:onPlayerReady}})\
}\
function onPlayerReady(a)\
{ \
a.target.playVideo(); \
}\
</script>\
<iframe id='playerId' type='text/html' width='100%%' height='%f' src='http://www.youtube.com/embed/%@?enablejsapi=1&rel=0&playsinline=0&autoplay=1' frameborder='0'allowfullscreen>\
</body>\
</html>",self.webView.frame.size.height,@"Dw9jFO_coww"];
[self.webView bringSubviewToFront:self.btnBack];
self.webView.backgroundColor = [UIColor clearColor];
self.webView.opaque = NO;
[self.webView loadHTMLString:embedHTML baseURL:[[NSBundle mainBundle] resourceURL]];
回答by Lux.Capacitor
UPDATE :
更新 ：
iOS 10+ now allows auto-play on HTML5 < video> elements, just have to mute the audio on elements. Youtube will still not. Android is still SOL too, but hey, its a start!
iOS 10+ 现在允许在 HTML5 <video> 元素上自动播放，只需要将元素上的音频静音。Youtube 仍然不会。Android 仍然是 SOL，但是嘿，这是一个开始！
SAMPLE:
样本：
<video autoplay muted>
<source src="movie.mp4" type="video/mp4">
Sadly, your browser does not support the video tag X_x
</video>
INFO SOURCE:https://webkit.org/blog/6784/new-video-policies-for-ios/
信息来源：https : //webkit.org/blog/6784/new-video-policies-for-ios/
