问题
I'm new to android and sorry in advance if my question is trivial but I was not able to find any solution for it.
I'm working on an android project and I have a WebView that displays a web page from the assets directory, my web page has a video element as shown below
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>video player</title>
</head>
<body>
<video width="400" controls autoplay loop muted>
<source src="./assets/video/video1.webm" type="video/webm">
</video>
</body>
</html>
Below is java code from the fragment that is responsible of displaying web page:
mWebView.setWebContentsDebuggingEnabled(true);
mWebView.getSettings().setJavaScriptEnabled(true);
mWebView.getSettings().setJavaScriptCanOpenWindowsAutomatically(true);
mWebView.getSettings().setMediaPlaybackRequiresUserGesture(false);
mWebView.getSettings().setAllowFileAccess(true);
mWebView.setWebChromeClient(new WebChromeClient());
mWebView.setWebViewClient(new WebViewClient());
mWebView.loadUrl("file:///android_asset/www/video1.html");
I also modified AndroidManifest by adding android:hardwareAccelerated="true" for both activity and application.
When I test application on android TV emulator with API level 22 video start automatically and video controls are working properly, but when I test it using TV emulator with API level 25 video is not displayed only controls are shown but the video never started either from controls or automatically, only a white block is displayed.
Edit 1: add full HTML page, manifest configuration and java code for displaying HTML page.
回答1:
I'm answering my question for anyone who face same issue.
It seems that the issue is emulator related. Today I received my android TV box and when I test my application on it, it is working fine with no issues.
来源：https://stackoverflow.com/questions/53691526/video-is-not-started-inside-webview-in-android-api-25