Nicht in der Lage zu erstellen media-player (mit url)

Für die Wiedergabe von online-Musik-ich bin immer die Ausnahme im tun, im hintergrund. Ich bin nicht in der Lage das problem zu beheben.

01-08 09:42:05.199: E/MediaPlayer(16257): Unable to to create media player
01-08 09:42:05.209: W/System.err(16257): java.io.IOException: setDataSource failed.: status=0x80000000
01-08 09:42:05.229: W/System.err(16257):    at android.media.MediaPlayer._setDataSource(Native Method)
01-08 09:42:05.229: W/System.err(16257):    at android.media.MediaPlayer.setDataSource(MediaPlayer.java:1000)  
01-08 09:42:05.229: W/System.err(16257):    at android.media.MediaPlayer.setDataSource(MediaPlayer.java:960)
01-08 09:42:05.229: W/System.err(16257):    at com.example.audioplayer.MainActivity$Player.doInBackground(MainActivity.java:89)
01-08 09:42:05.229: W/System.err(16257):    at com.example.audioplayer.MainActivity$Player.doInBackground(MainActivity.java:1)  
01-08 09:42:05.229: W/System.err(16257):    at android.os.AsyncTask$2.call(AsyncTask.java:287)
01-08 09:42:05.229: W/System.err(16257):    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305)
01-08 09:42:05.229: W/System.err(16257):    at java.util.concurrent.FutureTask.run(FutureTask.java:137)
01-08 09:42:05.229: W/System.err(16257):    at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230)
01-08 09:42:05.239: W/System.err(16257):    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076)
01-08 09:42:05.239: W/System.err(16257):    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569)
01-08 09:42:05.239: W/System.err(16257):    at java.lang.Thread.run(Thread.java:856)
01-08 09:42:05.389: D/Prepared(16257): //false
01-08 09:42:05.389: E/MediaPlayer(16257): start called in state 1
01-08 09:42:05.389: E/MediaPlayer(16257): error (-38, 0)
01-08 09:42:05.449: E/MediaPlayer(16257): Error (-38,0)

Dies ist der code:

public class MainActivity extends Activity {
private Button btn;
/**
* help to toggle between play and pause.
*/
private boolean playPause;
private MediaPlayer mediaPlayer;
/**
* remain false till media is not completed, inside OnCompletionListener make it true.
*/
private boolean intialStage = true;


@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btn = (Button) findViewById(R.id.button1);
mediaPlayer = new MediaPlayer();
mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
btn.setOnClickListener(pausePlay);

}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
//Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}

private OnClickListener pausePlay = new OnClickListener() {

@Override
public void onClick(View v) {
    //TODO Auto-generated method stub
    //TODO Auto-generated method stub

    if (!playPause) {
        btn.setBackgroundResource(R.drawable.button_pause);
        if (intialStage)
            new Player()
                    .execute("http://www.virginmegastore.me/Library/Music/CD_001214/Tracks/Track1.mp3");
        else {
            if (!mediaPlayer.isPlaying())
                mediaPlayer.start();
        }
        playPause = true;
    } else {
        btn.setBackgroundResource(R.drawable.button_play);
        if (mediaPlayer.isPlaying())
            mediaPlayer.pause();
        playPause = false;
    }
}
};
/**
* preparing mediaplayer will take sometime to buffer the content so prepare it inside the background thread and starting it on UI thread.
* @author piyush
*
*/

class Player extends AsyncTask<String, Void, Boolean> {
private ProgressDialog progress;

@Override
protected Boolean doInBackground(String... params) {
    //TODO Auto-generated method stub
    Boolean prepared;
    try {

        mediaPlayer.setDataSource(params[0]);//line 89

        mediaPlayer.setOnCompletionListener(new OnCompletionListener() {

            @Override
            public void onCompletion(MediaPlayer mp) {
                //TODO Auto-generated method stub
                intialStage = true;
                playPause=false;
                btn.setBackgroundResource(R.drawable.button_play);
                mediaPlayer.stop();
                mediaPlayer.reset();
            }
        });
        mediaPlayer.prepare();
        prepared = true;
    } catch (IllegalArgumentException e) {
        //TODO Auto-generated catch block
        Log.d("IllegarArgument", e.getMessage());
        prepared = false;
        e.printStackTrace();
    } catch (SecurityException e) {
        //TODO Auto-generated catch block
        prepared = false;
        e.printStackTrace();
    } catch (IllegalStateException e) {
        //TODO Auto-generated catch block
        prepared = false;
        e.printStackTrace();
    } catch (IOException e) {
        //TODO Auto-generated catch block
        prepared = false;
        e.printStackTrace();
    }
    return prepared;
}

@Override
protected void onPostExecute(Boolean result) {
    //TODO Auto-generated method stub
    super.onPostExecute(result);
    if (progress.isShowing()) {
        progress.cancel();
    }
    Log.d("Prepared", "//" + result);
    mediaPlayer.start();

    intialStage = false;
}

public Player() {
    progress = new ProgressDialog(MainActivity.this);
}

@Override
protected void onPreExecute() {
    //TODO Auto-generated method stub
    super.onPreExecute();
    this.progress.setMessage("Buffering...");
    this.progress.show();

}
}

@Override
protected void onPause() {
//TODO Auto-generated method stub
super.onPause();
if (mediaPlayer != null) {
    mediaPlayer.reset();
    mediaPlayer.release();
    mediaPlayer = null;
}
}
}

Den link korrekt ist. Habe ich erwähnt, die Ausnahme generiert, die auf der Linie 89. Bitte finden Sie unter was ist schon falsch gibt.

Vielen Dank im Voraus...

InformationsquelleAutor Vivek Warde | 2015-01-08