我有在Android的WebView中播放YouTube的代码。
它在新手机(Android 4.4、5.1、6、7操作系统)上运行良好，但是当我在Android 4.0.3上尝试过时，它将打开带有控件的YouTube框架，并在中部单击按钮播放后，会显示灰色背景，时间。
编码:
private void initializeWebView() {
WebView webView = (WebView) findViewById(R.id.webView);
//webView.setLayerType(View.LAYER_TYPE_SOFTWARE, null);
webView.getSettings().setCacheMode(WebSettings.LOAD_NO_CACHE);
webView.getSettings().setRenderPriority(WebSettings.RenderPriority.HIGH);
webView.setBackgroundColor(getResources().getColor(R.color.semi_transparent_black_20percentage));
webView.getSettings().setBuiltInZoomControls(true);
//webView.getSettings().setDisplayZoomControls(false);
webView.setWebViewClient(new WebViewClient() {
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
return false;
}
});
WebSettings webSetting = webView.getSettings();
webSetting.setJavaScriptEnabled(true);
webSetting.setDisplayZoomControls(false);
//webSetting.setLoadWithOverviewMode(true);
//webSetting.setUseWideViewPort(true);
int screenWidth = getWindowManager().getDefaultDisplay().getWidth();
webView.setLayoutParams(new RelativeLayout.LayoutParams( screenWidth / 2, LayoutParams.MATCH_PARENT));
getWindow().setFlags(
WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED,
WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED);
webView.getSettings().setPluginState(WebSettings.PluginState.ON);
webSetting.setJavaScriptEnabled(true);
webSetting.setBuiltInZoomControls(true);
webSetting.setAllowContentAccess(true);
webSetting.setEnableSmoothTransition(true);
webSetting.setLoadsImagesAutomatically(true);
webSetting.setLoadWithOverviewMode(true);
webSetting.setSupportZoom(false);
webSetting.setUseWideViewPort(true);
webSetting.setAppCacheEnabled(true);
webSetting.setSupportMultipleWindows(true);
webView.setVisibility(View.VISIBLE);
}
public void loadPageIntoWebView(String htmlFilename){
AssetManager mgr = getBaseContext().getAssets();
try {
String htmlContentInStringFormat = "";
WebView webView = (WebView) findViewById(R.id.webView);
String frameVideo = "<body>Video From YouTube<br><iframe width=\"420\" height=\"315\" src=\"https://www.youtube.com/embed/2a7f29Jvihc?wmode=transparent\" frameborder=\"0\" allowtransparency></iframe></body>";
htmlContentInStringFormat = frameVideo;
webView.loadDataWithBaseURL(null, htmlContentInStringFormat, "text/html", "utf-8", null);
} catch (Exception e) {
e.printStackTrace();
}
}
此代码运行良好，并且可以在较新的手机(Android OS4.4-7)上播放YouTube视频。
为了使它也可以在Android 4.0.3上运行，我应该改变什么？
this is the photo showing the gray background without playing youtubevideo after clicking on the button play inthe middle of the screen:
最佳答案
解决了!
添加以下行后，它也适用于Android 4.0.3:
webView.setWebChromeClient(new WebChromeClient() {});
这不是强制性的，但我在此行之前添加了以下行:
webView.setWebViewClient(new WebViewClient()
希望该解决方案能够帮助其他同事使用Epson Moverio BT-200智能眼镜等。
;-)
关于android - 嵌入了iframe的Youtube视频无法在Android 4.0.3上播放，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/47776925/