Ios UIWebview dos不播放mp4视频
我试图用UIWebView播放一个网站上的.mp4视频（带有HTML5视频标签）。 iPhone/iPad设备和模拟器只显示了一个带有删除播放按钮的黑色边框。 如果我只是在Safari Mac版本上打电话给这个网站，就可以玩它了。 怎么了 它不是本地文件。html如下所示：Ios UIWebview dos不播放mp4视频,ios,video,uiwebview,screen,frame,Ios,Video,Uiwebview,Screen,Frame,我试图用UIWebView播放一个网站上的.mp4视频（带有HTML5视频标签）。 iPhone/iPad设备和模拟器只显示了一个带有删除播放按钮的黑色边框。 如果我只是在Safari Mac版本上打电话给这个网站，就可以玩它了。 怎么了 它不是本地文件。html如下所示： <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xh
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta charset="utf-8" />
<link rel="stylesheet" type="text/css" href="../css/shared-culture.css" />
</head>
<body>
<section class="base">
<hgroup>
<h1>creative commons</h1>
<h2>a shared culture</h2>
</hgroup>
<p>To celebrate our 2008 fundraising campaign, Creative Commons has
released “A Shared Culture,” a short video by renowned filmmaker <a
href="http://en.wikipedia.org/wiki/Jesse_Dylan">Jesse Dylan</a>. Known for
helming a variety of films, music videos, and the Emmy Award-winning <a
href="http://my.barackobama.com/page/invite/yeswecanvideo">“Yes We Can”</a>
Barack Obama campaign video collaboration with rapper will.i.am, Dylan created
“A Shared Culture” to help spread the word about the Creative Commons mission. </p>
<!-- height="240" width="360" -->
<video id="video1" controls="controls">
<source src="../video/shared-culture.mp4" type="video/mp4"/>
<source src="../video/shared-culture.webm" type="video/webm"/>
<div class="errmsg">
<p>Your Reading System does not support (this) video.</p>
<pre><code>
<video id="video1" controls="controls">
<source src="../video/shared-culture.mp4" type="video/mp4"/>
<source src="../video/shared-culture.webm" type="video/webm"/>
</video>
</code></pre>
</div>
</video>
<p>In the video, some of the leading thinkers behind Creative Commons
describe how the organization is helping “save the world from failed sharing”
through free tools that enable creators to easily make their work available to
the public for legal sharing and remix. Dylan puts the Creative Commons system
into action by punctuating the interview footage with dozens of photos that have
been offered to the public for use under CC licenses. Similarly, he used two
CC-licensed instrumental pieces by Nine Inch Nails as the video’s soundtrack
music. These tracks, “17 Ghosts II” and “21 Ghosts III,” come from the Nine Inch
Nails album Ghosts I-IV, which was released earlier this year under a Creative
Commons BY-NC-SA license. (See <a
href="http://creativecommons.org/videos/a-shared-culture">attribution</a>.)
</p>
</section>
</body>
</html>
听起来像是编解码器的问题。如果在计算机上的VLC中打开该文件，您可以查看该文件使用的编解码器，请转到“窗口->媒体信息->编解码器详细信息”。答案链接到苹果的文档，您可以在其中找到支持的视频和音频编解码器：
它可能不是iPhone友好的格式
将mp4文件拖动到iMovie中，然后单击“共享”->“导出电影”，并选择一种与iPhone兼容的格式。您使用的相对路径可能有问题。。尝试使用完全绝对路径-从http://开始，如果承载视频文件的web服务器不支持字节范围，则视频无法在UIWebView中播放。UIWebView不会一次下载整个.mp4文件；相反，它通过请求部分文件来流式传输视频。现在大多数服务器都支持字节范围，但如果您的服务器不支持，或者您出于某种原因关闭了它，您将无法向iOS设备提供视频。我也有这个问题，我有2个
.mp4.mp4.mp4<!DOCTYPE html>
<html>
<head></head>
<body>
<center> <video width="250" height="304" controls preload>
<source src="video1.mp4" type="video/mp4">
</video> </center>
<p>Thanks to Md Kamrul Hasan .....mdkamrul.hasan@marquette.edu</p>
</body>
</html>
WebView.AllowsLinkPreview = true;
WebView.AllowsInlineMediaPlayback = true;
WebView.AllowsPictureInPictureMediaPlayback = true;
感谢卡姆鲁尔·哈桑博士……卡姆鲁尔博士。hasan@marquette.edu
祝你好运我在C#NET核心Ios网络视图应用程序中搜索同样的东西。对于我来说，在WebView控件上设置这些开关（在WebView中设置html之后）：
为我工作。是本地文件中的视频吗，你能发布你的
HTMLhttp://my.barackobama.com . . ./video/shared culture.mp4type=“application/x-shockwave-flash”WebView.AllowsLinkPreview = true;
WebView.AllowsInlineMediaPlayback = true;
WebView.AllowsPictureInPictureMediaPlayback = true;