Unable Media-Player in android FileNotFoundException

Question

Ich entwickle ein App Streaming-Audio, mit Mediaplayer-Klasse zu erstellen. Siehe App Screenshots, Was mache ich hier falsch ?? Bitte lesen Sie

package musicplayer.androidhive.com.musicplayer; 

import java.io.IOException; 
import java.util.ArrayList; 
import java.util.HashMap; 
import java.util.Random; 

import android.app.Activity; 
import android.content.Context; 
import android.content.Intent; 
import android.media.MediaPlayer; 
import android.media.MediaPlayer.OnCompletionListener; 
import android.net.Uri; 
import android.os.Bundle; 
import android.os.Handler; 
import android.util.Log; 
import android.view.View; 
import android.widget.ImageButton; 
import android.widget.SeekBar; 
import android.widget.TextView; 
import android.widget.Toast; 

public class AndroidBuildingMusicPlayerActivity extends Activity implements OnCompletionListener, SeekBar.OnSeekBarChangeListener { 

private ImageButton btnPlay; 
private ImageButton btnForward; 
private ImageButton btnBackward; 
private ImageButton btnNext; 
private ImageButton btnPrevious; 
private ImageButton btnPlaylist; 
private ImageButton btnRepeat; 
private ImageButton btnShuffle; 
private SeekBar songProgressBar; 
private TextView songTitleLabel; 
private TextView songCurrentDurationLabel; 
private TextView songTotalDurationLabel; 
// Media Player 
private MediaPlayer mp; 
// Handler to update UI timer, progress bar etc,. 
private Handler mHandler = new Handler();; 
private SongsManager songManager; 
private Utilities utils; 
private int seekForwardTime = 5000; // 5000 milliseconds 
private int seekBackwardTime = 5000; // 5000 milliseconds 
private int currentSongIndex = 0; 
private boolean isShuffle = false; 
private boolean isRepeat = false; 
private ArrayList<HashMap<String, String>> songsList = new ArrayList<HashMap<String, String>>(); 
Context thisActivity; 


@Override 
public void onCreate(Bundle savedInstanceState) { 
super.onCreate(savedInstanceState); 
setContentView(R.layout.player); 

thisActivity = this; 
// All player buttons 
btnPlay = (ImageButton) findViewById(R.id.btnPlay); 
btnForward = (ImageButton) findViewById(R.id.btnForward); 
btnBackward = (ImageButton) findViewById(R.id.btnBackward); 
btnNext = (ImageButton) findViewById(R.id.btnNext); 
btnPrevious = (ImageButton) findViewById(R.id.btnPrevious); 
btnPlaylist = (ImageButton) findViewById(R.id.btnPlaylist); 
btnRepeat = (ImageButton) findViewById(R.id.btnRepeat); 
btnShuffle = (ImageButton) findViewById(R.id.btnShuffle); 
songProgressBar = (SeekBar) findViewById(R.id.songProgressBar); 
songTitleLabel = (TextView) findViewById(R.id.songTitle); 
songCurrentDurationLabel = (TextView) findViewById(R.id.songCurrentDurationLabel); 
songTotalDurationLabel = (TextView) findViewById(R.id.songTotalDurationLabel); 

// Mediaplayer 
mp = new MediaPlayer(); 
songManager = new SongsManager(); 
utils = new Utilities(); 

// Listeners 
songProgressBar.setOnSeekBarChangeListener(this); // Important 
mp.setOnCompletionListener(this); // Important 

// Getting all songs list 
songsList = songManager.getPlayList(); 

// By default play first song 
playSong(0); 

/** 
* Play button click event 
* plays a song and changes button to pause image 
* pauses a song and changes button to play image 
* */ 
btnPlay.setOnClickListener(new View.OnClickListener() { 

@Override 
public void onClick(View arg0) { 
// check for already playing 
if(mp.isPlaying()){ 
if(mp!=null){ 
mp.pause(); 
// Changing button image to play button 
btnPlay.setImageResource(R.drawable.btn_play); 
} 
}else{ 
// Resume song 
if(mp!=null){ 

try{ 

mp.setDataSource(thisActivity,Uri.parse("http://208.109.189.86/files/song.mp3")); 
mp.start(); 
// Changing button image to pause button 
btnPlay.setImageResource(R.drawable.btn_pause); 

} catch (Exception ex){ 

Log.e("MYAPP", "exception", ex); 

} 
} 
} 

} 
}); 

/** 
* Forward button click event 
* Forwards song specified seconds 
* */ 
btnForward.setOnClickListener(new View.OnClickListener() { 

@Override 
public void onClick(View arg0) { 
// get current song position     
int currentPosition = mp.getCurrentPosition(); 
// check if seekForward time is lesser than song duration 
if(currentPosition + seekForwardTime <= mp.getDuration()){ 
// forward song 
mp.seekTo(currentPosition + seekForwardTime); 
}else{ 
// forward to end position 
mp.seekTo(mp.getDuration()); 
} 
} 
}); 

/** 
* Backward button click event 
* Backward song to specified seconds 
* */ 
btnBackward.setOnClickListener(new View.OnClickListener() { 

@Override 
public void onClick(View arg0) { 
// get current song position     
int currentPosition = mp.getCurrentPosition(); 
// check if seekBackward time is greater than 0 sec 
if(currentPosition - seekBackwardTime >= 0){ 
// forward song 
mp.seekTo(currentPosition - seekBackwardTime); 
}else{ 
// backward to starting position 
mp.seekTo(0); 
} 

} 
}); 

/** 
* Next button click event 
* Plays next song by taking currentSongIndex + 1 
* */ 
btnNext.setOnClickListener(new View.OnClickListener() { 

@Override 
public void onClick(View arg0) { 
// check if next song is there or not 
if(currentSongIndex < (songsList.size() - 1)){ 
playSong(currentSongIndex + 1); 
currentSongIndex = currentSongIndex + 1; 
}else{ 
// play first song 
playSong(0); 
currentSongIndex = 0; 
} 

} 
}); 

/** 
* Back button click event 
* Plays previous song by currentSongIndex - 1 
* */ 
btnPrevious.setOnClickListener(new View.OnClickListener() { 

@Override 
public void onClick(View arg0) { 
if(currentSongIndex > 0){ 
playSong(currentSongIndex - 1); 
currentSongIndex = currentSongIndex - 1; 
}else{ 
// play last song 
playSong(songsList.size() - 1); 
currentSongIndex = songsList.size() - 1; 
} 

} 
}); 

/** 
* Button Click event for Repeat button 
* Enables repeat flag to true 
* */ 
btnRepeat.setOnClickListener(new View.OnClickListener() { 

@Override 
public void onClick(View arg0) { 
if(isRepeat){ 
isRepeat = false; 
Toast.makeText(getApplicationContext(), "Repeat is OFF", Toast.LENGTH_SHORT).show(); 
btnRepeat.setImageResource(R.drawable.btn_repeat); 
}else{ 
// make repeat to true 
isRepeat = true; 
Toast.makeText(getApplicationContext(), "Repeat is ON", Toast.LENGTH_SHORT).show(); 
// make shuffle to false 
isShuffle = false; 
btnRepeat.setImageResource(R.drawable.btn_repeat_focused); 
btnShuffle.setImageResource(R.drawable.btn_shuffle); 
} 
} 
}); 

/** 
* Button Click event for Shuffle button 
* Enables shuffle flag to true 
* */ 
btnShuffle.setOnClickListener(new View.OnClickListener() { 

@Override 
public void onClick(View arg0) { 
if(isShuffle){ 
isShuffle = false; 
Toast.makeText(getApplicationContext(), "Shuffle is OFF", Toast.LENGTH_SHORT).show(); 
btnShuffle.setImageResource(R.drawable.btn_shuffle); 
}else{ 
// make repeat to true 
isShuffle= true; 
Toast.makeText(getApplicationContext(), "Shuffle is ON", Toast.LENGTH_SHORT).show(); 
// make shuffle to false 
isRepeat = false; 
btnShuffle.setImageResource(R.drawable.btn_shuffle_focused); 
btnRepeat.setImageResource(R.drawable.btn_repeat); 
} 
} 
}); 

/** 
* Button Click event for Play list click event 
* Launches list activity which displays list of songs 
* */ 
btnPlaylist.setOnClickListener(new View.OnClickListener() { 

@Override 
public void onClick(View arg0) { 
Intent i = new Intent(getApplicationContext(), PlayListActivity.class); 
startActivityForResult(i, 100);   
} 
}); 

} 

/** 
* Receiving song index from playlist view 
* and play the song 
* */ 
@Override 
protected void onActivityResult(int requestCode, 
     int resultCode, Intent data) { 
super.onActivityResult(requestCode, resultCode, data); 
if(resultCode == 100){ 
currentSongIndex = data.getExtras().getInt("songIndex"); 
// play selected song 
playSong(currentSongIndex); 
} 

} 

/** 
* Function to play a song 
* @param songIndex - index of song 
* */ 
public void playSong(int songIndex){ 
// Play song 
try { 
mp.reset(); 
//mp.setDataSource(songsList.get(songIndex).get("songPath")); 
String AudioFile = "http://208.109.189.86/files/song.mp3"; 
mp.setDataSource(this, Uri.parse(AudioFile)); 
mp.prepare(); 
mp.start(); 
// Displaying Song title 
String songTitle = songsList.get(songIndex).get("songTitle"); 
songTitleLabel.setText(songTitle); 

// Changing Button Image to pause image 
btnPlay.setImageResource(R.drawable.btn_pause); 

// set Progress bar values 
songProgressBar.setProgress(0); 
songProgressBar.setMax(100); 

// Updating progress bar 
updateProgressBar();    
} catch (IllegalArgumentException e) { 
e.printStackTrace(); 
} catch (IllegalStateException e) { 
e.printStackTrace(); 
} catch (IOException e) { 
e.printStackTrace(); 
} 
} 

/** 
* Update timer on seekbar 
* */ 
public void updateProgressBar() { 
mHandler.postDelayed(mUpdateTimeTask, 100);   
} 

/** 
* Background Runnable thread 
* */ 
private Runnable mUpdateTimeTask = new Runnable() { 
public void run() { 
long totalDuration = mp.getDuration(); 
long currentDuration = mp.getCurrentPosition(); 

// Displaying Total Duration time 
songTotalDurationLabel.setText(""+utils.milliSecondsToTimer(totalDuration)); 
// Displaying time completed playing 
songCurrentDurationLabel.setText(""+utils.milliSecondsToTimer(currentDuration)); 

// Updating progress bar 
int progress = (int)(utils.getProgressPercentage(currentDuration, totalDuration)); 
//Log.d("Progress", ""+progress); 
songProgressBar.setProgress(progress); 

// Running this thread after 100 milliseconds 
mHandler.postDelayed(this, 100); 
} 
}; 

/** 
* 
* */ 
@Override 
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromTouch) { 

} 

/** 
* When user starts moving the progress handler 
* */ 
@Override 
public void onStartTrackingTouch(SeekBar seekBar) { 
// remove message Handler from updating progress bar 
mHandler.removeCallbacks(mUpdateTimeTask); 
} 

/** 
* When user stops moving the progress hanlder 
* */ 
@Override 
public void onStopTrackingTouch(SeekBar seekBar) { 
mHandler.removeCallbacks(mUpdateTimeTask); 
int totalDuration = mp.getDuration(); 
int currentPosition = utils.progressToTimer(seekBar.getProgress(), totalDuration); 

// forward or backward to certain seconds 
mp.seekTo(currentPosition); 

// update timer progress again 
updateProgressBar(); 
} 

/** 
* On Song Playing completed 
* if repeat is ON play same song again 
* if shuffle is ON play random song 
* */ 
@Override 
public void onCompletion(MediaPlayer arg0) { 

// check for repeat is ON or OFF 
if(isRepeat){ 
// repeat is on play same song again 
playSong(currentSongIndex); 
} else if(isShuffle){ 
// shuffle is on - play a random song 
Random rand = new Random(); 
currentSongIndex = rand.nextInt((songsList.size() - 1) - 0 + 1) + 0; 
playSong(currentSongIndex); 
} else{ 
// no repeat or shuffle ON - play next song 
if(currentSongIndex < (songsList.size() - 1)){ 
playSong(currentSongIndex + 1); 
currentSongIndex = currentSongIndex + 1; 
}else{ 
// play first song 
playSong(0); 
currentSongIndex = 0; 
} 
} 
} 

@Override 
public void onDestroy(){ 
super.onDestroy(); 
mp.release(); 
} 

} 

Exception Screenshot:

I setDataSource versucht.

mediaPlayer.setDataSource (this, Uri.parse (myURL));

Ich weiß nicht, was hier falsch gelaufen ist. Wenn ich die eingestellte Datenquelle anrufe, wird ein Fehler ausgegeben. In logcat, kann ich sehen, wie Nachrichten,

D/Mediaplayer: Datei kann nicht geöffnet auf Client-Seite versucht, Server-Seite

Hauptaktivitätscode Screenshot:

Ich habe Internet-Berechtigungssatz in Manifest.

Answer 1

können Sie versuchen, dies zu tun

MediaPlayer mp = new MediaPlayer(/*Your-Context*/); 
mp.setDataSource(/*MP3 file's Url*/); 
mp.setOnPreparedListener(new OnPreparedListener(){ 
    onPrepared(MediaPlayer mp){ 
     mp.start(); 
    } 
}); 
mp.prepareAsync(); 

Answer 2

Versuchen MediaPlayer.create(), können Sie auch erst nach Spieler starten wollen tatsächlich bereit ist, zum Beispiel:

@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    MediaPlayer player = MediaPlayer.create(this, Uri.parse("http://www.urltofile.com/file.mp3")); 
    player.setOnPreparedListener(new OnPreparedListener() { 
     @Override 
     public void onPrepared(MediaPlayer mp) { 
      mp.start(); 
     } 
    }); 
}