我想在我的应用程序中播放你的私人频道视频。我可以从应用程序的频道中获取视频，但我希望在我的应用程序中播放视频。有什么方法可以在我的应用中播放 youtube 频道视频。请帮助我这样做。
主要活动.java
package com.blundell.tut.ui.phone;
import java.net.MalformedURLException;
import java.net.URL;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.ActivityNotFoundException;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.View;
import android.widget.VideoView;
import com.blundell.tut.R;
import com.blundell.tut.domain.Library;
import com.blundell.tut.domain.Video;
import com.blundell.tut.service.task.GetYouTubeUserVideosTask;
import com.blundell.tut.ui.VideoClickListener;
import com.blundell.tut.ui.widget.VideoGridView;
/**
* The Activity can retrieve Videos for a specific username from YouTube</br>
* It then displays them into a list including the Thumbnail preview and the title</br>
* There is a reference to each video on YouTube as well but this isn't used in this tutorial</br>
* </br>
* <b>Note<b/> orientation change isn't covered in this tutorial, you will want to override
* onSaveInstanceState() and onRestoreInstanceState() when you come to this
* </br>
* @author paul.blundell
*/
public class MainActivity extends Activity implements VideoClickListener
{
// A reference to our list that will hold the video details
private VideoGridView listView;
VideoView videoView;
private static ProgressDialog progressDialog;
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
listView = (VideoGridView) findViewById(R.id.videosListView);
videoView = (VideoView) findViewById(R.id.video_View);
// Here we are adding this activity as a listener for when any row in the List is 'clicked'
// The activity will be sent back the video that has been pressed to do whatever it wants with
// in this case we will retrieve the URL of the video and fire off an intent to view it
listView.setOnVideoClickListener(this);
}
public void getUserYouTubeFeed(View v)
{
new Thread(new GetYouTubeUserVideosTask(responseHandler, "erosentertainment")).start();
}
Handler responseHandler = new Handler()
{
public void handleMessage(Message msg)
{
populateListWithVideos(msg);
};
};
private void populateListWithVideos(Message msg)
{
Library lib = (Library) msg.getData().get(GetYouTubeUserVideosTask.LIBRARY);
listView.setVideos(lib.getVideos());
}
@Override
protected void onStop()
{
responseHandler = null;
super.onStop();
}
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);
}
}
System.out.println("..................videoid......."+id);
}
catch (Exception ex)
{
System.out.println("Exception"+ex);
}
return id;
}
// This is the interface method that is called when a video in the listview is clicked!
// The interface is a contract between this activity and the listview
String Videoid;
@Override
public void onVideoClicked(Video video)
{
String url=video.getUrl();
System.out.println(".....video url........."+url);
try
{
Videoid = extractYoutubeId(url);
}
catch (MalformedURLException e1)
{
// TODO Auto-generated catch block
e1.printStackTrace();
}
try
{
Intent intent = new Intent(null, Uri.parse("ytv://"+Videoid),
MainActivity.this, OpenYouTubePlayerActivity.class);
startActivity(intent);
}
catch(ActivityNotFoundException e)
{
e.printStackTrace();
System.out.println("kailash.........."+e);
}
}
}
----------
**GetYouTubeUserVideosTask.java**
package com.example.youtube;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpUriRequest;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
/**
* This is the task that will ask YouTube for a list of videos for a specified user</br>
* This class implements Runnable meaning it will be ran on its own Thread</br>
* Because it runs on it's own thread we need to pass in an object that is notified when it has finished
*
* @author paul.blundell
*/
public class GetYouTubeUserVideosTask implements Runnable
{
// A reference to retrieve the data when this task finishes
public static final String LIBRARY = "Library";
// A handler that will be notified when the task is finished
private final Handler replyTo;
// The user we are querying on YouTube for videos
private final String username;
/**
* Don't forget to call run(); to start this task
* @param replyTo - the handler you want to receive the response when this task has finished
* @param username - the username of who on YouTube you are browsing
*/
public GetYouTubeUserVideosTask(Handler replyTo, String username)
{
this.replyTo = replyTo;
this.username = username;
}
@Override
public void run()
{
try
{
// Get a httpclient to talk to the internet
HttpClient client = new DefaultHttpClient();
// Perform a GET request to YouTube for a JSON list of all the videos by a specific user
HttpUriRequest request = new HttpGet("https://gdata.youtube.com/feeds/api/videos?author="+username+"&v=2&alt=jsonc");
// Get the response that YouTube sends back
HttpResponse response = client.execute(request);
// Convert this response into a readable string
String jsonString = StreamUtils.convertToString(response.getEntity().getContent());
// Create a JSON object that we can use from the String
JSONObject json = new JSONObject(jsonString);
// For further information about the syntax of this request and JSON-C
// see the documentation on YouTube http://code.google.com/apis/youtube/2.0/developers_guide_jsonc.html
// Get are search result items
JSONArray jsonArray = json.getJSONObject("data").getJSONArray("items");
// Create a list to store are videos in
List<Video> videos = new ArrayList<Video>();
// Loop round our JSON list of videos creating Video objects to use within our app
for (int i = 0; i < jsonArray.length(); i++)
{
JSONObject jsonObject = jsonArray.getJSONObject(i);
// The title of the video
String title = jsonObject.getString("title");
// The url link back to YouTube, this checks if it has a mobile url
// if it doesnt it gets the standard url
String url;
try
{
url = jsonObject.getJSONObject("player").getString("mobile");
}
catch (JSONException ignore)
{
url = jsonObject.getJSONObject("player").getString("default");
}
// A url to the thumbnail image of the video
// We will use this later to get an image using a Custom ImageView
// Found here http://blog.blundell-apps.com/imageview-with-loading-spinner/
String thumbUrl = jsonObject.getJSONObject("thumbnail").getString("sqDefault");
// Create the video object and add it to our list
videos.add(new Video(title, url, thumbUrl));
}
// Create a library to hold our videos
Library lib = new Library(username, videos);
// Pack the Library into the bundle to send back to the Activity
Bundle data = new Bundle();
data.putSerializable(LIBRARY, lib);
// Send the Bundle of data (our Library) back to the handler (our Activity)
Message msg = Message.obtain();
msg.setData(data);
replyTo.sendMessage(msg);
// We don't do any error catching, just nothing will happen if this task falls over
// an idea would be to reply to the handler with a different message so your Activity can act accordingly
}
catch (ClientProtocolException e)
{
Log.e("Feck", e);
}
catch (IOException e)
{
Log.e("Feck", e);
}
catch (JSONException e)
{
Log.e("Feck", e);
}
}
}