This is Application Code I am Posting here..
public class MulitrackmixtureActivity extends Activity {
/** Called when the activity is first created. */
public Button play, pause, rew;
public MediaPlayer mediaPlayer, mediaPlayer2, mediaPlayer3, mediaPlayer4,
mediaPlayer5, mediaPlayer6;
SeekBar seek, trk1vol, trk2vol, trk3vol, trk4vol, trk5vol, trk6vol;
AudioManager audioManager;
private final Handler handler = new Handler();
public static final int S1 = R.raw.track1a;
public static final int S2 = R.raw.track2a;
public static final int S3 = R.raw.track3a;
public static final int S4 = R.raw.track4a;
public static final int S5 = R.raw.track5a;
public static final int S6 = R.raw.track6a;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
seek = (SeekBar) findViewById(R.id.seekBar1);
play = (Button) findViewById(R.id.play_btn);
pause = (Button) findViewById(R.id.pause_btn);
rew = (Button) findViewById(R.id.rew_btn);
mediaPlayer = new MediaPlayer();
mediaPlayer = MediaPlayer.create(this, S1);
mediaPlayer2 = new MediaPlayer();
mediaPlayer2 = MediaPlayer.create(this, S2);
mediaPlayer3 = new MediaPlayer();
mediaPlayer3 = MediaPlayer.create(this, S3);
mediaPlayer4 = new MediaPlayer();
mediaPlayer4 = MediaPlayer.create(this, S4);
mediaPlayer5 = new MediaPlayer();
mediaPlayer5 = MediaPlayer.create(this, S5);
mediaPlayer6 = new MediaPlayer();
mediaPlayer6 = MediaPlayer.create(this, S6);
audioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
int maxVolume = audioManager
.getStreamMaxVolume(AudioManager.STREAM_MUSIC);
int curVolume = audioManager.getStreamVolume(AudioManager.STREAM_MUSIC);
trk1vol = (SeekBar) findViewById(R.id.seekBar2);
trk2vol = (SeekBar) findViewById(R.id.seekBar3);
trk3vol = (SeekBar) findViewById(R.id.seekBar4);
trk4vol = (SeekBar) findViewById(R.id.seekBar5);
trk5vol = (SeekBar) findViewById(R.id.seekBar6);
trk6vol = (SeekBar) findViewById(R.id.seekBar7);
trk1vol.setMax(maxVolume);
trk2vol.setMax(maxVolume);
trk3vol.setMax(maxVolume);
trk4vol.setMax(maxVolume);
trk5vol.setMax(maxVolume);
trk6vol.setMax(maxVolume);
trk1vol.setProgress(curVolume);
trk2vol.setProgress(curVolume);
trk3vol.setProgress(curVolume);
trk4vol.setProgress(curVolume);
trk5vol.setProgress(curVolume);
trk6vol.setProgress(curVolume);
trk1vol.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
public void onStopTrackingTouch(SeekBar seekBar) {
}
public void onStartTrackingTouch(SeekBar arg0) {
}
public void onProgressChanged(SeekBar seekBar, int progress,
boolean arg2) {
try {
if (seekBar.equals(trk1vol)) {
mediaPlayer.setVolume((progress / 10.0f),
(progress / 10.0f));
}
} catch (Exception e) {
// TODO: handle exception
}
}
});
trk2vol.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
public void onStopTrackingTouch(SeekBar seekBar) {
}
public void onStartTrackingTouch(SeekBar arg0) {
}
public void onProgressChanged(SeekBar seekBar, int progress,
boolean arg2) {
try {
if (seekBar.equals(trk2vol)) {
mediaPlayer2.setVolume((progress / 10.0f),
(progress / 10.0f));
}
} catch (Exception e) {
// TODO: handle exception
}
}
});
trk3vol.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
public void onStopTrackingTouch(SeekBar seekBar) {
}
public void onStartTrackingTouch(SeekBar arg0) {
}
public void onProgressChanged(SeekBar seekBar, int progress,
boolean arg2) {
try {
if (seekBar.equals(trk3vol)) {
mediaPlayer3.setVolume((progress / 10.0f),
(progress / 10.0f));
}
} catch (Exception e) {
// TODO: handle exception
}
}
});
trk4vol.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
public void onStopTrackingTouch(SeekBar seekBar) {
}
public void onStartTrackingTouch(SeekBar arg0) {
}
public void onProgressChanged(SeekBar seekBar, int progress,
boolean arg2) {
try {
if (seekBar.equals(trk4vol)) {
mediaPlayer4.setVolume((progress / 10.0f),
(progress / 10.0f));
}
} catch (Exception e) {
// TODO: handle exception
}
}
});
trk5vol.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
public void onStopTrackingTouch(SeekBar seekBar) {
}
public void onStartTrackingTouch(SeekBar arg0) {
}
public void onProgressChanged(SeekBar seekBar, int progress,
boolean arg2) {
try {
if (seekBar.equals(trk5vol)) {
mediaPlayer5.setVolume((progress / 10.0f),
(progress / 10.0f));
}
} catch (Exception e) {
// TODO: handle exception
}
}
});
trk6vol.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
public void onStopTrackingTouch(SeekBar seekBar) {
}
public void onStartTrackingTouch(SeekBar arg0) {
}
public void onProgressChanged(SeekBar seekBar, int progress,
boolean arg2) {
try {
if (seekBar.equals(trk6vol)) {
mediaPlayer6.setVolume((progress / 10.0f),
(progress / 10.0f));
}
} catch (Exception e) {
// TODO: handle exception
}
}
});
seek.setMax(mediaPlayer.getDuration());
seek.setOnTouchListener(new OnTouchListener() {
public boolean onTouch(View v, MotionEvent event) {
seekChange(v);
return false;
}
});
play.setOnClickListener(new View.OnClickListener() {
public void onClick(View arg0) {
// check for already playing
try {
if (mediaPlayer.isPlaying()
|| mediaPlayer2.isPlaying()
|| mediaPlayer3.isPlaying()
|| mediaPlayer4.isPlaying()
|| mediaPlayer5.isPlaying()
|| mediaPlayer6.isPlaying()) {
if (mediaPlayer != null
&& mediaPlayer2 != null
&& mediaPlayer3 != null
&& mediaPlayer4 != null
&& mediaPlayer5 != null
&& mediaPlayer6 != null) {
int position = mediaPlayer.getCurrentPosition();
int position2 = mediaPlayer2.getCurrentPosition();
int position3 = mediaPlayer3.getCurrentPosition();
int position4 = mediaPlayer4.getCurrentPosition();
int position5 = mediaPlayer5.getCurrentPosition();
int position6 = mediaPlayer6.getCurrentPosition();
mediaPlayer.pause();
mediaPlayer.seekTo(position);
mediaPlayer2.pause();
mediaPlayer2.seekTo(position2);
mediaPlayer3.pause();
mediaPlayer3.seekTo(position3);
mediaPlayer4.pause();
mediaPlayer4.seekTo(position4);
mediaPlayer5.pause();
mediaPlayer5.seekTo(position5);
mediaPlayer6.pause();
mediaPlayer6.seekTo(position6);
}
} else {
// Resume song
// if (mediaPlayer != null
// && mediaPlayer2 != null
// && mediaPlayer3 != null
// && mediaPlayer4 != null
// && mediaPlayer5 != null
// && mediaPlayer6 != null) {
mediaPlayer.start();
mediaPlayer2.start();
mediaPlayer3.start();
mediaPlayer4.start();
mediaPlayer5.start();
mediaPlayer6.start();
// Changing button image to pause button
startPlayProgressUpdater();
// }
}
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
});
}
public void startPlayProgressUpdater() {
seek.setProgress(mediaPlayer.getCurrentPosition());
if (mediaPlayer.isPlaying()
|| mediaPlayer2.isPlaying()
|| mediaPlayer3.isPlaying()
|| mediaPlayer4.isPlaying()
|| mediaPlayer5.isPlaying()
|| mediaPlayer6.isPlaying()) {
Runnable notification = new Runnable() {
public void run() {
startPlayProgressUpdater();
}
};
handler.postDelayed(notification, 50);
} else {
mediaPlayer.pause();
mediaPlayer2.pause();
mediaPlayer3.pause();
mediaPlayer4.pause();
mediaPlayer5.pause();
mediaPlayer6.pause();
seek.setProgress(mediaPlayer.getCurrentPosition());
}
}
private void seekChange(View v) {
if (mediaPlayer.isPlaying() || mediaPlayer2.isPlaying()
|| mediaPlayer3.isPlaying() || mediaPlayer4.isPlaying()
|| mediaPlayer5.isPlaying() || mediaPlayer6.isPlaying()) {
// SeekBar sb = (SeekBar) v;
mediaPlayer.seekTo(seek.getProgress());
mediaPlayer2.seekTo(seek.getProgress());
mediaPlayer3.seekTo(seek.getProgress());
mediaPlayer4.seekTo(seek.getProgress());
mediaPlayer5.seekTo(seek.getProgress());
mediaPlayer6.seekTo(seek.getProgress());
}
}
public void onBackPressed() {
try {
System.exit(1);
mediaPlayer.release();
mediaPlayer2.release();
mediaPlayer3.release();
mediaPlayer4.release();
mediaPlayer5.release();
mediaPlayer6.release();
} catch (Exception e) {
e.printStackTrace();
}
super.onBackPressed();
}
}
problume on Application----
this an music mixture
i will 12 trracks to be play
right now i have 6tracks ke saath.
They are working .but problume is when i click play button all media track
play different miliseconds.
If i drag seek bar then difference will be end but i pause and then play
again same problume
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