Play youtube / vimeo video embedded in HTML in Android WebView

Question

Hey, I'm trying to play youtube / vimeo videos embedded in HTML inside webview.

Typical HTML would look like this:

<p>Here some text from a server</p>
<p>This text goes inside of a webview</p>
<p>Sometimes there are iframe with vimeo videos embedded in the HTML text like this:</p>

<iframe src="//player.vimeo.com/video/12345?title=0&amp;byline=0&amp;portrait=0" width="500" height="281" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>

<p>Sometimes there are iframe with youtube videos embedded in the HTML text like this:</p>

<p><iframe width="640" height="360" src="//www.youtube.com/embed/-NwibJy9-Cg?feature=player_detailpage" frameborder="0" allowfullscreen></iframe></p>

But the video does not play, and the thumbnail for the video is not displayed.

I looked at many different StackOverflow posts on this topic, but found no luck with them.

Here is my code for setting up webview:

public class ReaderFragment extends Fragment {

private TextView mTitleTextView, mDateTextView;
private WebView mContentWebView;
private StoryItem mStory;

@Override
public View onCreateView(LayoutInflater inflater,
                         final ViewGroup container, Bundle savedInstanceState) {

    View v = inflater.inflate(R.layout.fragment_reader, container, false);

    mTitleTextView = (TextView) v
            .findViewById(R.id.fragment_reader_story_title);
    mTitleTextView.setText(mStory.getTitle());

    mDateTextView = (TextView) v
            .findViewById(R.id.fragment_reader_story_date);
    mDateTextView.setText(mStory.getAuthor());

    mContentWebView = (WebView) v
            .findViewById(R.id.fragment_reader_story_content);

    mContentWebView.setWebChromeClient(new WebChromeClient());
    mContentWebView.getSettings().setPluginState(WebSettings.PluginState.ON);
    mContentWebView.getSettings().setPluginState(WebSettings.PluginState.ON_DEMAND);
    mContentWebView.setWebViewClient(new WebViewClient());
    mContentWebView.setBackgroundColor(0x00000000);
    mContentWebView.getSettings().setBuiltInZoomControls(true);
    mContentWebView.getSettings().setJavaScriptEnabled(true);
    mContentWebView.getSettings().setLoadWithOverviewMode(true);
    mContentWebView.getSettings().setUseWideViewPort(true);

    //I load the webview with the entire HTML content from the server, including text, and
    //sometime <iframe> videos, I'd like to successfully embed these videos!
    mContentWebView.loadDataWithBaseURL(null, mStory.getUnparsedContent(),
            "text/html; charset=utf-8", "UTF-8", null);

    return v;
}

How can I display these embedded videos <iframein mine webview?

Answer 1

So, after a couple of days, redoing this, FINALLY found a solution to my problem!

<iframe ../> WebView, NEED, URL-! baseURL URL-, , -, , .

DONT :

// You need to give a baseUrl (e.g. the corresponding url of the HTML String)
webview.loadDataWithBaseURL(null, htmlWithVideosString,
            "text/html; charset=utf-8", "UTF-8", null);

:

    /*
     VERY important to supply a baseURL for playing the videos!
     Without a baseUrl the WebView has no idea where to look for the video.
     The baseUrl will typically just be the URL that corresponds to the 
     HTML String that you are using.
    */
    mContentWebView.loadDataWithBaseURL(baseUrlOfHtmlContent, htmlWithVideosString,
            "text/html; charset=utf-8", "UTF-8", null);

!

WebView... ...

    mContentWebView.setWebChromeClient(new WebChromeClient());
    mContentWebView.getSettings().setPluginState(WebSettings.PluginState.ON);
    mContentWebView.getSettings().setPluginState(WebSettings.PluginState.ON_DEMAND);
    mContentWebView.setWebViewClient(new WebViewClient());
    mContentWebView.getSettings().setJavaScriptEnabled(true);

. " " Manifest .

:

<application
    android:name="com.example.app"
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme"
    android:hardwareAccelerated="true">
<!-- hardwareAccelerated requires SDK 14 -->
...
</application>