android media player connecting status with audio streaming link(ie 2%,4%…100% then online radio start to play) in android

 when user click play button to play radio then i want to show connecting status(buffering 1%,2%.. 99%). when status will be 100% radio start to play. i was  face problem to solve this. so here i share this code for all.

 at first create this class ______________________
public class StreamingMediaPlayer {

    private static final int INTIAL_KB_BUFFER =  96*10/8;//assume 96kbps*10secs/8bits per byte

    private TextView textStreamed;
   
    private ImageButton playButton;
   
    private ProgressBar    progressBar;
   
    //  Track for display by progressBar
    private long mediaLengthInKb, mediaLengthInSeconds;
    private int totalKbRead = 0;
   
    // Create Handler to call View updates on the main UI thread.
    private final Handler handler = new Handler();

    private MediaPlayer     mediaPlayer;
   
    private File downloadingMediaFile;
   
    private boolean isInterrupted;
   
    private Context context;
   
    private int counter = 0;
   
     public StreamingMediaPlayer(Context  context,TextView textStreamed, ImageButton    playButton, Button    streamButton,ProgressBar    progressBar)
     {
         this.context = context;
        this.textStreamed = textStreamed;
        this.playButton = playButton;
        this.progressBar = progressBar;
    }
   
    /** 
     * Progressivly download the media to a temporary location and update the MediaPlayer as new content becomes available.
     */ 
    public void startStreaming(final String mediaUrl, long    mediaLengthInKb, long    mediaLengthInSeconds) throws IOException {
       
        this.mediaLengthInKb = mediaLengthInKb;
        this.mediaLengthInSeconds = mediaLengthInSeconds;
       
        Runnable r = new Runnable() {  
            public void run() {  
                try {  
                    downloadAudioIncrement(mediaUrl);
                } catch (IOException e) {
                    Log.e(getClass().getName(), "Unable to initialize the MediaPlayer for fileUrl=" + mediaUrl, e);
                    return;
                }  
            }  
        };  
        new Thread(r).start();
    }
   
    /** 
     * Download the url stream to a temporary location and then call the setDataSource 
     * for that local file
     */ 
    public void downloadAudioIncrement(String mediaUrl) throws IOException {
       
        URLConnection cn = new URL(mediaUrl).openConnection();  
        cn.connect();  
        InputStream stream = cn.getInputStream();
        if (stream == null) {
            Log.e(getClass().getName(), "Unable to create InputStream for mediaUrl:" + mediaUrl);
        }
       
        downloadingMediaFile = new File(context.getCacheDir(),"downloadingMedia.dat");
        if (downloadingMediaFile.exists()) {
            downloadingMediaFile.delete();
        }

        FileOutputStream out = new FileOutputStream(downloadingMediaFile);  
        byte buf[] = new byte[16384];
        int totalBytesRead = 0, incrementalBytesRead = 0;
        do {
            int numread = stream.read(buf);  
            if (numread <= 0)  
                break;  
            out.write(buf, 0, numread);
            totalBytesRead += numread;
            incrementalBytesRead += numread;
            totalKbRead = totalBytesRead/1000;
           
            testMediaBuffer();
               fireDataLoadUpdate();
        } while (validateNotInterrupted());  
               stream.close();
        if (validateNotInterrupted()) {
               fireDataFullyLoaded();
        }
    } 

    private boolean validateNotInterrupted() {
        if (isInterrupted) {
            if (mediaPlayer != null) {
                mediaPlayer.pause();
                //mediaPlayer.release();
            }
            return false;
        } else {
            return true;
        }
    }

   
    /**
     * Test whether we need to transfer buffered data to the MediaPlayer.
     * Interacting with MediaPlayer on non-main UI thread can causes crashes to so perform this using a Handler.
     */ 
    private void  testMediaBuffer() {
        Runnable updater = new Runnable() {
            public void run() {
                if (mediaPlayer == null) {
                    //  Only create the MediaPlayer once we have the minimum buffered data
                    if ( totalKbRead >= INTIAL_KB_BUFFER) {
                        try {
                            startMediaPlayer();
                        } catch (Exception e) {
                            Log.e(getClass().getName(), "Error copying buffered conent.", e);               
                        }
                    }
                } else if ( mediaPlayer.getDuration() - mediaPlayer.getCurrentPosition() <= 1000 ){
                    //  NOTE:  The media player has stopped at the end so transfer any existing buffered data
                    //  We test for < 1second of data because the media player can stop when there is still
                    //  a few milliseconds of data left to play
                    transferBufferToMediaPlayer();
                }
            }
        };
        handler.post(updater);
    }
   
    private void startMediaPlayer() {
        try {  
            File bufferedFile = new File(context.getCacheDir(),"playingMedia" + (counter++) + ".dat");
           
            // We double buffer the data to avoid potential read/write errors that could happen if the
            // download thread attempted to write at the same time the MediaPlayer was trying to read.
            // For example, we can't guarantee that the MediaPlayer won't open a file for playing and leave it locked while
            // the media is playing.  This would permanently deadlock the file download.  To avoid such a deadloack,
            // we move the currently loaded data to a temporary buffer file that we start playing while the remaining
            // data downloads. 
            moveFile(downloadingMediaFile,bufferedFile);
           
            Log.e(getClass().getName(),"Buffered File path: " + bufferedFile.getAbsolutePath());
            Log.e(getClass().getName(),"Buffered File length: " + bufferedFile.length()+"");
           
            mediaPlayer = createMediaPlayer(bufferedFile);
           
            // We have pre-loaded enough content and started the MediaPlayer so update the buttons & progress meters.
            mediaPlayer.start();
            startPlayProgressUpdater();           
            playButton.setEnabled(true);
        } catch (IOException e) {
            Log.e(getClass().getName(), "Error initializing the MediaPlayer.", e);
            return;
        }  
    }
   
    private MediaPlayer createMediaPlayer(File mediaFile)
    throws IOException {
        MediaPlayer mPlayer = new MediaPlayer();
        mPlayer.setOnErrorListener(
                new MediaPlayer.OnErrorListener() {
                    public boolean onError(MediaPlayer mp, int what, int extra) {
                        Log.e(getClass().getName(), "Error in MediaPlayer: (" + what +") with extra (" +extra +")" );
                        return false;
                    }
                });

        //  It appears that for security/permission reasons, it is better to pass a FileDescriptor rather than a direct path to the File.
        //  Also I have seen errors such as "PVMFErrNotSupported" and "Prepare failed.: status=0x1" if a file path String is passed to
        //  setDataSource().  So unless otherwise noted, we use a FileDescriptor here.
        FileInputStream fis = new FileInputStream(mediaFile);
        mPlayer.setDataSource(fis.getFD());
        mPlayer.prepare();
        return mPlayer;
    }
   
    /**
     * Transfer buffered data to the MediaPlayer.
     * NOTE: Interacting with a MediaPlayer on a non-main UI thread can cause thread-lock and crashes so
     * this method should always be called using a Handler.
     */ 
    private void transferBufferToMediaPlayer() {
        try {
            // First determine if we need to restart the player after transferring data...e.g. perhaps the user pressed pause
            boolean wasPlaying = mediaPlayer.isPlaying();
            int curPosition = mediaPlayer.getCurrentPosition();
           
            // Copy the currently downloaded content to a new buffered File.  Store the old File for deleting later.
            File oldBufferedFile = new File(context.getCacheDir(),"playingMedia" + counter + ".dat");
            File bufferedFile = new File(context.getCacheDir(),"playingMedia" + (counter++) + ".dat");

            //  This may be the last buffered File so ask that it be delete on exit.  If it's already deleted, then this won't mean anything.  If you want to
            // keep and track fully downloaded files for later use, write caching code and please send me a copy.
            bufferedFile.delete();  
            moveFile(downloadingMediaFile,bufferedFile);

            // Pause the current player now as we are about to create and start a new one.  So far (Android v1.5),
            // this always happens so quickly that the user never realized we've stopped the player and started a new one
            mediaPlayer.pause();

            // Create a new MediaPlayer rather than try to re-prepare the prior one.
            mediaPlayer = createMediaPlayer(bufferedFile);
            mediaPlayer.seekTo(curPosition);
           
            //  Restart if at end of prior buffered content or mediaPlayer was previously playing. 
            //    NOTE:  We test for < 1second of data because the media player can stop when there is still
            //  a few milliseconds of data left to play
            boolean atEndOfFile = mediaPlayer.getDuration() - mediaPlayer.getCurrentPosition() <= 1000;
            if (wasPlaying || atEndOfFile){
                mediaPlayer.start();
            }

            // Lastly delete the previously playing buffered File as it's no longer needed.
            oldBufferedFile.delete();
           
           
        }catch (Exception e) {
            Log.e(getClass().getName(), "Error updating to newly loaded content.", e);                   
        }
    }
   
    private void fireDataLoadUpdate() {
        Runnable updater = new Runnable() {
            public void run() {
                if((totalKbRead>19)&&(totalKbRead<120))
                    textStreamed.setText((totalKbRead-19 + "% Buffering"));//show buffering status.. ie 1%,2%. in ui
                else if(totalKbRead<19)
                    textStreamed.setText(("Connecting..."));
                else
                textStreamed.setText((""));
               
                float loadProgress = ((float)totalKbRead/(float)mediaLengthInKb);
                progressBar.setSecondaryProgress((int)(loadProgress*100));
            }
        };
        handler.post(updater);
    }
   
    private void fireDataFullyLoaded() {
        Runnable updater = new Runnable() {
            public void run() {
                   transferBufferToMediaPlayer();

                   // Delete the downloaded File as it's now been transferred to the currently playing buffer file.
                   downloadingMediaFile.delete();
                textStreamed.setText(("Audio full loaded: " + totalKbRead + " Kb read"));
            }
        };
        handler.post(updater);
    }
   
    public MediaPlayer getMediaPlayer() {
        return mediaPlayer;
    }
   
    public void startPlayProgressUpdater() {
        float progress = (((float)mediaPlayer.getCurrentPosition()/1000)/mediaLengthInSeconds);
        progressBar.setProgress((int)(progress*100));
       
        if (mediaPlayer.isPlaying()) {
            Runnable notification = new Runnable() {
                public void run() {
                    startPlayProgressUpdater();
                }
            };
            handler.postDelayed(notification,1000);
        }
    }   
   
    public void interrupt() {
        playButton.setEnabled(false);
        isInterrupted = true;
        validateNotInterrupted();
    }
   
    /**
     *  Move the file in oldLocation to newLocation.
     */
    public void moveFile(File    oldLocation, File    newLocation)
    throws IOException {

        if ( oldLocation.exists( )) {
            BufferedInputStream  reader = new BufferedInputStream( new FileInputStream(oldLocation) );
            BufferedOutputStream  writer = new BufferedOutputStream( new FileOutputStream(newLocation, false));
            try {
                byte[]  buff = new byte[8192];
                int numChars;
                while ( (numChars = reader.read(  buff, 0, buff.length ) ) != -1) {
                    writer.write( buff, 0, numChars );
                  }
            } catch( IOException ex ) {
                throw new IOException("IOException when transferring " + oldLocation.getPath() + " to " + newLocation.getPath());
            } finally {
                try {
                    if ( reader != null ){                       
                        writer.close();
                        reader.close();
                    }
                } catch( IOException ex ){
                    Log.e(getClass().getName(),"Error closing files when transferring " + oldLocation.getPath() + " to " + newLocation.getPath() );
                }
            }
        } else {
            throw new IOException("Old location does not exist when transferring " + oldLocation.getPath() + " to " + newLocation.getPath() );
        }
    }
}

now copy the below code in activity
------------------------------------------
StreamingMediaPlayer audioStreamer = new StreamingMediaPlayer(this,textStreamed, playButton, streamButton,progressBar);
 audioStreamer.startStreaming("your streaming station name",5208, 216);

i thins this helps you :)

                  Interfacing with pc

Required Operating System
• Windows XP

Required Hardware
• Desktop CPU with DB25 Connector

Required Software
• VS 2008 or Update Version
• RS232.dll file (Most important)

Basic Socket Programming in C#

using System; using System.Text;/* this is server side code to receive data from client and sent data to client*/ using System.Net; using System.Net.Sockets; public class serv {     public static void Main() {     try {         IPAddress ipAd = IPAddress.Parse("172.21.5.99");//this ip is server pc local ip                  /* Initializes the Listener */         TcpListener myList=new TcpListener(ipAd,8001); /* Start Listeneting at the specified port */                myList.Start();                 Console.WriteLine("The server is running at port 8001...");            Console.WriteLine("The local End point is  :" +                           myList.LocalEndpoint );         Console.WriteLine("Waiting for a connection.....");                 Socket s=myList.AcceptSocket();         Console.WriteLine("Connection accepted from " + s.RemoteEndPoint);                 byte[] b=new byte[100];         int k=s.Receive(b);         Console.WriteLine("Recieved...");         for (int i=0;i<k;i++)             Console.Write(Convert.ToChar(b[i]));         ASCIIEncoding asen=new ASCIIEncoding(); /*sent data to client */         s.Send(asen.GetBytes("The string was recieved by the server."));         Console.WriteLine("\nSent Acknowledgement"); /* clean up */                    s.Close();         myList.Stop();                 }     catch (Exception e) {         Console.WriteLine("Error..... " + e.StackTrace);     }        }     } Client Side code  to sent data to server using System; using System.IO; using System.Net; using System.Text; using System.Net.Sockets;     public class clnt {       public static void Main() {                 try {             TcpClient tcpclnt = new TcpClient();             Console.WriteLine("Connecting.....");                         tcpclnt.Connect("172.21.5.99",8001);//this ip adress is server pc ip adress                                     Console.WriteLine("Connected");             Console.Write("Enter the string to be transmitted : ");                         String str=Console.ReadLine();             Stream stm = tcpclnt.GetStream();                                     ASCIIEncoding asen= new ASCIIEncoding();             byte[] ba=asen.GetBytes(str);             Console.WriteLine("Transmitting.....");                         stm.Write(ba,0,ba.Length);//sent data to server                         byte[] bb=new byte[100];             int k=stm.Read(bb,0,100);//receive data from server                         for (int i=0;i<k;i++)                 Console.Write(Convert.ToChar(bb[i]));                         tcpclnt.Close();         }                 catch (Exception e) {             Console.WriteLine("Error..... " + e.StackTrace);         }     }   }

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Welcome to the Coding World. Feel free to your coding. Post your problem and get tremendous solution quickly!!!!!!!.

                                                                                                                                     

 Happy Coding

                                                                                                                          Mohammad Tanvirul Islam 

                                                                                                                                                         Android, ,C#, Flex  developer