blocks|key|526629|text|试着包括这两行|type|unstyled|depth|inlineStyleRanges|entityRanges|data|526630|webView.allowsInlineMediaPlayback+=+YES;
webView.mediaPlaybackRequiresUserAction+=+NO;|code-block|syntax|javascript|526631|这几行代码解决了我在iOS+12.2中遇到的问题|526632|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Try including these two lines

<pre><code>webView.allowsInlineMediaPlayback = YES;
webView.mediaPlaybackRequiresUserAction = NO;
</code></pre>

These lines solved my issue which is occurring in iOS 12.2

blocks|key|5744128|text|它是使用UIWebView或WKWebView或类似工具嵌入的吗？|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5744129|尝试将webview的mediaPlaybackRequiresUserAction设置为YES。我在iOS+12.2中看到了同样的问题(UIWebView和WKWebView都有)。在iOS+12.1和更早版本中工作正常。|offset|length|style|CODE|5744130|调试时，您会在safari控制台中看到以下错误：|5744131|5744132|未处理的Promise+Rejection:+NotAllowedError:当前上下文中用户代理或平台不允许该请求，可能是因为用户拒绝了权限|blockquote|5744133|5744134|5744135|https://developer.apple.com/documentation/uikit/uiwebview/1617954-mediaplaybackrequiresuseraction?language=objc|5744136|https://developer.apple.com/documentation/webkit/wkwebviewconfiguration/1614727-mediaplaybackrequiresuseraction?language=objc|5744137|可能类似于此问题|5744138|Video+from+local+storage+not+playing+in+WebView+(Xamarin.Forms)+after+latest+iOS+update+(12.2)|5744139|entityMap|0|LINK|mutability|MUTABLE|url|1|2|https://stackoverflow.com/questions/55615862/video-from-local-storage-not-playing-in-webview-xamarin-forms-after-latest-ios/55945418#55945418^0|0|B|V|19|3|1X|9|27|9|0|0|0|0|0|0|0|33|0|0|0|3H|1|0|0|0|2M|2|0^^$0|@$1|2|3|4|5|6|7|17|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|18|8|@$D|19|E|1A|F|G]|$D|1B|E|1C|F|G]|$D|1D|E|1E|F|G]|$D|1F|E|1G|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|1H|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|1I|8|@]|9|@]|A|$]]|$1|K|3|L|5|M|7|1J|8|@]|9|@]|A|$]]|$1|N|3|-4|5|6|7|1K|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|1L|8|@]|9|@]|A|$]]|$1|P|3|Q|5|6|7|1M|8|@]|9|@$D|1N|E|1O|1|1P]]|A|$]]|$1|R|3|S|5|6|7|1Q|8|@]|9|@$D|1R|E|1S|1|1T]]|A|$]]|$1|T|3|U|5|6|7|1U|8|@]|9|@]|A|$]]|$1|V|3|W|5|6|7|1V|8|@]|9|@$D|1W|E|1X|1|1Y]]|A|$]]|$1|X|3|-4|5|6|7|1Z|8|@]|9|@]|A|$]]]|Y|$Z|$5|10|11|12|A|$13|Q]]|14|$5|10|11|12|A|$13|S]]|15|$5|10|11|12|A|$13|16]]]]

Is it embedded using UIWebView or WKWebView or similar?

Try setting <code>mediaPlaybackRequiresUserAction</code> to <code>YES</code> for the webview. I'm seeing the same issue (<code>UIWebView</code> and <code>WKWebView</code> both) in iOS 12.2. Works fine in iOS 12.1 and earlier.

When debugging, you see this error in safari console:

<blockquote>
 Unhandled Promise Rejection: NotAllowedError: The request is not
 allowed by the user agent or the platform in the current context,
 possibly because the user denied permission
</blockquote>

<a href="https://developer.apple.com/documentation/uikit/uiwebview/1617954-mediaplaybackrequiresuseraction?language=objc" rel="nofollow noreferrer">https://developer.apple.com/documentation/uikit/uiwebview/1617954-mediaplaybackrequiresuseraction?language=objc</a>

<a href="https://developer.apple.com/documentation/webkit/wkwebviewconfiguration/1614727-mediaplaybackrequiresuseraction?language=objc" rel="nofollow noreferrer">https://developer.apple.com/documentation/webkit/wkwebviewconfiguration/1614727-mediaplaybackrequiresuseraction?language=objc</a>

Could be similar to this issue

<a href="https://stackoverflow.com/questions/55615862/video-from-local-storage-not-playing-in-webview-xamarin-forms-after-latest-ios/55945418#55945418">Video from local storage not playing in WebView (Xamarin.Forms) after latest iOS update (12.2)</a>

blocks|key|2436574|text|mediaPlaybackRequiresUserAction+=+NO；查看：https://www.jianshu.com/p/d3f326dae445|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|2436575|entityMap|0|LINK|mutability|MUTABLE|url|https://www.jianshu.com/p/d3f326dae445^0|14|12|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

mediaPlaybackRequiresUserAction = NO;
look：<a href="https://www.jianshu.com/p/d3f326dae445" rel="nofollow noreferrer">https://www.jianshu.com/p/d3f326dae445</a>

blocks|key|2436562|text|您需要在您的应用程序中启用不安全的内容加载。否则，如果您不想这样做，您可以在安全的服务器上创建视频的镜像。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2436563|https://stackoverflow.com/a/30732693查看此处了解更多信息。|offset|length|2436564|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/a/30732693^0|0|0|10|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|O|8|@]|9|@$D|P|E|Q|1|R]]|A|$]]|$1|F|3|-4|5|6|7|S|8|@]|9|@]|A|$]]]|G|$H|$5|I|J|K|A|$L|M]]]]

You will need to enable insecure content loading in your app. Otherwise if you would not like to do that you can create a mirror of the video on a secure server. 

<a href="https://stackoverflow.com/a/30732693">https://stackoverflow.com/a/30732693</a> see here for more info.

iOS 12.2 real machine can not play the video in html5 loaded by UIWebView, link url <a href="http://community.cqliving.com/h5/info/detail/512.html?cid=512&amp;isOpenApp=&amp;f=10" rel="noreferrer">http://community.cqliving.com/h5/info/detail/512.html?cid=512&amp;isOpenApp=&amp;f=10</a>, other versions can play video

<a href="https://upload-images.jianshu.io/upload_images/3889208-d8bcf17c6ceb414d.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240" rel="noreferrer">Rendering</a>

uiwebview Video cannot be played in IOS 12.2

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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iOS 12.2真机不能播放UIWebView加载的html5格式的视频，链接url为，其他版本可以播放

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