来自 YouTube 的视频源文件使 Android Studio 中的应用程序崩溃

Posted 2023-02-25

【中文标题】来自 YouTube 的视频源文件使 Android Studio 中的应用程序崩溃

【英文标题】：Video Source file from YouTube crashes app in Android Studio

【发布时间】：2016-03-27 19:15:15

【问题描述】：

当视频位于带有媒体控制器的原始文件夹中时，应用程序可以正常工作。但是，当我将 Youtube 视频中的嵌入 src 值放入 setVideoPath 括号时，应用程序崩溃了。请帮忙！

     import android.support.v7.app.AppCompatActivity;
     import android.os.Bundle;
     import android.widget.VideoView;
     import android.widget.MediaController;

公共类 MainActivity 扩展 AppCompatActivity

@Override
protected void onCreate(Bundle savedInstanceState) 
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    VideoView vid = (VideoView) findViewById(R.id.videoView);
    vid.setVideoPath("https://www.youtube.com/embed/8iPFYfXuygk");
    MediaController mediaController = new MediaController(this);
    mediaController.setAnchorView(vid);
    vid.setMediaController(mediaController);
    vid.start();

【问题讨论】：

你在模拟器上测试吗？

你为什么不试试developers.google.com/youtube/android/player

如果您想播放 youtube 视频，那么我认为您必须在 youtube 上引用直接 mp4 链接，否则默认视频无法播放上述短网址

@BilalShahid：不，我正在使用手机进行测试。是的，我认为这更有意义。非常感谢:)

【参考方案1】：

此Example 代码适用于 youtube 使用 videoview 播放视频

package com.truiton.videoview;

    import java.net.HttpURLConnection;
    import java.net.MalformedURLException;
    import java.net.URL;
    import java.util.HashMap;

    import javax.xml.parsers.DocumentBuilder;
    import javax.xml.parsers.DocumentBuilderFactory;

    import org.w3c.dom.Attr;
    import org.w3c.dom.Document;
    import org.w3c.dom.Element;
    import org.w3c.dom.NamedNodeMap;
    import org.w3c.dom.Node;
    import org.w3c.dom.NodeList;

    import android.media.MediaPlayer;
    import android.media.MediaPlayer.OnPreparedListener;
    import android.net.Uri;
    import android.os.AsyncTask;
    import android.os.Bundle;
    import android.app.Activity;
    import android.util.Log;
    import android.view.Menu;
    import android.widget.MediaController;
    import android.widget.VideoView;

    public class VideoViewActivity extends Activity 
        private VideoView videoView;
        private MediaController mController;
        private Uri uriYouTube;

        @Override
        protected void onCreate(Bundle savedInstanceState) 
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_video_view);
            videoView = (VideoView) findViewById(R.id.videoView1);
            mController = new MediaController(this);
            videoView.setMediaController(mController);
            videoView.requestFocus();

            /*Uri uri = Uri.parse("android.resource://" + this.getPackageName() + "/"
                    + R.raw.sample);
            videoView.setVideoURI(uri);
            videoView.start();*/

            if (savedInstanceState != null) 
                int loc = savedInstanceState.getInt("Loc");
                Log.i("Loaction: ", loc + "");
                uriYouTube = Uri.parse(savedInstanceState.getString("url"));
                videoView.setVideoURI(uriYouTube);
                videoView.seekTo(loc);
                videoView.setOnPreparedListener(new OnPreparedListener() 
                    @Override
                    public void onPrepared(MediaPlayer mp) 
                        Log.v("onPrepared", "ok");
                        mp.start();
                    
                );
             else 
                RTSPUrlTask truitonTask = new RTSPUrlTask();
                truitonTask.execute("http://www.youtube.com/watch?v=2zNSgSzhBfM");
            

        

        void startPlaying(String url) 
            uriYouTube = Uri.parse(url);
            videoView.setVideoURI(uriYouTube);
            videoView.start();
        

        @Override
        protected void onSaveInstanceState(Bundle outState) 
            super.onSaveInstanceState(outState);
            outState.putInt("Loc", videoView.getCurrentPosition());
            outState.putString("url", uriYouTube.toString());
        

        @Override
        public boolean onCreateOptionsMenu(Menu menu) 
            getMenuInflater().inflate(R.menu.video_view, menu);
            return true;
        

        private class RTSPUrlTask extends AsyncTask<String, Void, String> 
            @Override
            protected String doInBackground(String... urls) 
                String response = getRTSPVideoUrl(urls[0]);
                return response;
            

            @Override
            protected void onPostExecute(String result) 
                startPlaying(result);
            

            public String getRTSPVideoUrl(String urlYoutube) 
                try 
                    String gdy = "http://gdata.youtube.com/feeds/api/videos/";
                    DocumentBuilder dBuilder = DocumentBuilderFactory.newInstance()
                            .newDocumentBuilder();
                    String id = extractYoutubeId(urlYoutube);
                    URL url = new URL(gdy + id);
                    HttpURLConnection connection = (HttpURLConnection) url
                            .openConnection();
                    Document doc = dBuilder.parse(connection.getInputStream());
                    Element el = doc.getDocumentElement();
                    NodeList list = el.getElementsByTagName("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) 
                    return urlYoutube;
                
            

            public String extractYoutubeId(String url) throws MalformedURLException 
                String query = new URL(url).getQuery();
                String[] param = query.split("&");
                String id = null;
                for (String row : param) 
                    String[] param1 = row.split("=");
                    if (param1[0].equals("v")) 
                        id = param1[1];
                    
                
                return id;
            
        


    

添加添加权限

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>