Xamarin Forms Webview 不播放视频 [英] Xamarin Forms Webview not playing video
问题描述
我有一个在 Xamarin Forms Xaml 中声明的 webview.无论我是在代码后面还是在 Xaml 中设置源，视频控件都可以很好地呈现，但是当您单击播放图标时，它不会播放.我可以通过点击呈现的底部搜索栏来向前和向后跳过.视频会向前跳过并冻结在一个帧上，但在点击播放时仍然不会播放.我正在将 webview 的源设置为 html5 视频标签，因为它是我最接近获取要呈现的视频的标签.我应该提一下，视频是使用 Azure 媒体服务进行流式处理的，所以这应该不是问题.
I have a webview declared in Xamarin Forms Xaml. Whether I set the source in code behind or in Xaml, the video control renders fine, but when you click the play icon it does not play. I can skip ahead and back by tapping the bottom seek bar that renders. The video will skip ahead and freeze on a frame, but still wont play when tapping play. I'm setting the source of the webview to an html5 video tag as its the closest I could get to getting a video to render. I should mention that the video is formatted for streaming using Azure Media Services, so that shouldn't be the issue.
<WebView IsVisible="{Binding HasVideo}" Margin="10,0,0,0" BindingContextChanged="WebView_BindingContextChanged" HorizontalOptions="CenterAndExpand"
VerticalOptions="CenterAndExpand" HeightRequest="350" />
private void WebView_BindingContextChanged(object sender, EventArgs e)
{
var webView = ((WebView)sender);
Post post = (Post)webView.BindingContext;
if (post.HasVideo)
{
var htmlSource = new HtmlWebViewSource();
htmlSource.Html = @"<!DOCTYPE html>
<html>
<body>
<video src='" + post.MainVideoURL + @"' controls width='320' height='240' preload='metadata' >
</ body >
</html><style>
video {
object-fit: fill;
}
</style>";
webView.Source = htmlSource;
}
}
推荐答案
这也发生在我身上，在已安装的应用程序上.一个用户报告了这个问题.
It happened for me also, on already installed app. A user reported this problem.
在安卓上:当您单击播放图标时，它不会播放.我可以通过点击底部的搜索栏来向前和向后跳转，或者通过向左/向右点击视频，它会显示不同的帧.
On Android: When you click the play icon it doesn't play. I can skip ahead and back by tapping the bottom seek bar, or by tapping left/right on the video, it shows different frames.
在 iOS 上:使用最新的更新 12.2，视频停止工作.它们显示空白背景，并且不响应任何点击.
On iOS: With the latest update 12.2, the videos stopped working. They show blank background and they don't respond to any click.
我也在使用视频标签...
I am also using video tag...
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