how to play youtube video in videoview android ?

You can play youtube video in your application.There is no need to add third party library or other API.

• First of all create one android project named "VideoViewTube".
• You need to add VideoView component in your xml file.Open activity_main.xml and add following code:

activity_main.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="fill_parent"

    android:layout_height="fill_parent"

    android:gravity="center"

    android:minWidth="854dip"

    android:minHeight="480dip"

    >

    <VideoView

        android:id="@+id/videoView"

        android:layout_width="fill_parent"

        android:layout_height="fill_parent"

        android:fitsSystemWindows="true"

        android:minHeight="480dip"

        android:minWidth="854dip" />

</LinearLayout>

• If your internet speed is low then It will take some time to play youtube video,Between buffering time and playing time your application UI may freeze.
• To resolve this issue use Async Task (AsyncTask Tutorial).
• Open MainActivity.java file and create MyAsyncTask class in below onCreate() method. 
• MyAsyncTask class extends AsyncTask<Void,Void,Void>,Write following code in MyAsyncTask class.

private class YourAsyncTask extends AsyncTask<Void, Void, Void>

    {

        ProgressDialog progressDialog;

        @Override

        protected void onPreExecute()

        {

            super.onPreExecute();

            progressDialog = ProgressDialog.show(MainActivity.this, "", "Loading Video wait...", true);

        }

        @Override

        protected Void doInBackground(Void... params)

        {

            try

            {

                String url = "http://www.youtube.com/watch?v=OtLa7wDpuOU";

                videoUrl = getUrlVideoRTSP(url);

                Log.e("Video url for playing=========>>>>>", videoUrl);

            }

            catch (Exception e)

            {

                Log.e("Login Soap Calling in Exception", e.toString());

            }

            return null;

        }

        @Override

        protected void onPostExecute(Void result)

        {

            super.onPostExecute(result);

            progressDialog.dismiss();

        

            videoView.setVideoURI(Uri.parse(videoUrl));

            MediaController mc = new MediaController(MainActivity.this);

            videoView.setMediaController(mc);

            videoView.requestFocus();

            videoView.start();          

            mc.show();

        }

    }

•  Now you get one error in  getUrlVideoRTSP(url).It is because youtube video is RTSP type videos RTSP means Real Time Streaming Protocol.We need to get Video URL from RTSP.
• Add following two methods below MyAsyncTask class. getUrlVideoRTSP(String urlYoutube); and extractYoutubeId(String url);  

public static String getUrlVideoRTSP(String urlYoutube)

    {

        try

        {

            String gdy = "http://gdata.youtube.com/feeds/api/videos/";

            DocumentBuilder documentBuilder = DocumentBuilderFactory.newInstance().newDocumentBuilder();

            String id = extractYoutubeId(urlYoutube);

            URL url = new URL(gdy + id);

            HttpURLConnection connection = (HttpURLConnection) url.openConnection();

            Document doc = documentBuilder.parse(connection.getInputStream());

            Element el = doc.getDocumentElement();

            NodeList list = el.getElementsByTagName("media:content");///media:content

            String cursor = urlYoutube;

            for (int i = 0; i < list.getLength(); i++)

            {

                Node node = list.item(i);

                if (node != null)

                {

                    NamedNodeMap nodeMap = node.getAttributes();

                    HashMap<String, String> maps = new HashMap<String, String>();

                    for (int j = 0; j < nodeMap.getLength(); j++)

                    {

                        Attr att = (Attr) nodeMap.item(j);

                        maps.put(att.getName(), att.getValue());

                    }

                    if (maps.containsKey("yt:format"))

                    {

                        String f = maps.get("yt:format");

                        if (maps.containsKey("url"))

                        {

                            cursor = maps.get("url");

                        }

                        if (f.equals("1"))

                            return cursor;

                    }

                }

            }

            return cursor;

        }

        catch (Exception ex)

        {

            Log.e("Get Url Video RTSP Exception======>>", ex.toString());

        }

        return urlYoutube;

    }

protected static String extractYoutubeId(String url) throws MalformedURLException    {        String id = null;
        try
        {
            String query = new URL(url).getQuery();
            if (query != null)
            {
                String[] param = query.split("&");
                for (String row : param)
                {
                    String[] param1 = row.split("=");
                    if (param1[0].equals("v"))
                    {
                        id = param1[1];
                    }
                }
            }
            else
            {
                if (url.contains("embed"))
                {
                    id = url.substring(url.lastIndexOf("/") + 1);
                }
            }
        }
        catch (Exception ex)
        {
            Log.e("Exception", ex.toString());
        }
        return id;
    }

• Now just define VideoView and call AsyncTask Class in onCreate() Method.

MainActivity.java

public class MainActivity extends Activity {
VideoView videoView;
String videoUrl;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
videoView = (VideoView)findViewById(R.id.videoView);
new YourAsyncTask().execute();
}

• At last write onPause method in bottom of MainActivity.java class

public void onPause ()

{

super.onPause();

videoView.stopPlayback();

}

The Completed MainActivity.java Class is : Part 2

Get Full Suorce Code: Here