When i play song in music player when i press a button i am forwarding the song for certain time,i am implementing this way,but i need when i press and hold the fast forward button wan to move the song means acting as our real music player,how can i am implementing please help me how i implement the fast forward button functionality is same as our music player fast forward button.
public class MainActivity extends Activity implements OnCompletionListener,
SeekBar.OnSeekBarChangeListener {
private ImageButton btnDecreaseSound, btnIncSound, btnReverse, btnPlay, btnForward,
btnPause;
private TextView currenttime, endtime;
private LinearLayout btnRedo, btnDelete;
private SeekBar songProgressBar;
private MediaPlayer mp;
private SongsManager songManager;
private Utilities utils;
private int seekForwardTime = 5000; // 5000 milliseconds
private int seekBackwardTime = 5000; // 5000 milliseconds
private int currentSongIndex = 0;
private SeekBar volumeSeekbar ;
private AudioManager audioManager ;
private Handler mHandler = new Handler();
private ArrayList<HashMap<String, String>> songsList = new ArrayList<HashMap<String, String>>();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Mediaplayer
mp = new MediaPlayer();
songManager = new SongsManager();
utils = new Utilities();
final SoundPool spool = null;
final int soundID = 0;
audioManager = (AudioManager) getSystemService(getApplicationContext().AUDIO_SERVICE);
volumeSeekbar.setMax(audioManager
.getStreamMaxVolume(AudioManager.STREAM_MUSIC));
volumeSeekbar.setProgress(audioManager
.getStreamVolume(AudioManager.STREAM_MUSIC));
// Listeners
songProgressBar.setOnSeekBarChangeListener(this); // Important
mp.setOnCompletionListener(this); // Important
// Getting all songs list
songsList = songManager.getPlayList();
// By default play first song
btnPlay.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if (mp.isPlaying()) {
if (mp != null) {
mp.pause();
// Changing button image to play button
btnPlay.setImageResource(R.drawable.playbtn);
}
} else {
if (mp != null) {
mp.start();
//
btnPlay.setImageResource(R.drawable.pauseiconbtn);
}
}
}
});
volumeSeekbar.setOnSeekBarChangeListener(new OnSeekBarChangeListener()
{
@Override
public void onStopTrackingTouch(SeekBar arg0)
{
}
@Override
public void onStartTrackingTouch(SeekBar arg0)
{
}
@Override
public void onProgressChanged(SeekBar arg0, int progress, boolean arg2)
{
audioManager.setStreamVolume(AudioManager.STREAM_MUSIC,
progress, 0);
}
});
btnReverse.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
// 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);
}
}
});
btnForward.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
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());
}
}
});
public void playSong(int songIndex) {
// Play song
try {
mp.reset();
mp.setDataSource(songsList.get(songIndex).get("songPath"));
mp.prepare();
mp.start();
// Displaying Song title
String songTitle = songsList.get(songIndex).get("songTitle");
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();
}
}
public void updateProgressBar() {
mHandler.postDelayed(mUpdateTimeTask, 100);
}
private Runnable mUpdateTimeTask = new Runnable() {
public void run() {
long totalDuration = mp.getDuration();
long currentDuration = mp.getCurrentPosition();
// Displaying Total Duration time
// endtime.setText(""+utils.milliSecondsToTimer(totalDuration));
// Displaying time completed playing
currenttime
.setText("" + utils.milliSecondsToTimer(currentDuration));
//
String l = utils.milliSecondsToTimer(currentDuration);
String l2 = utils.milliSecondsToTimer(currentDuration);
long number = totalDuration - currentDuration;
String timechange = utils.milliSecondsToTimer(number);
System.out.println("l value: " + timechange);
endtime.setText("-" + timechange);
// 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
playSong(0);
currentSongIndex = 0;
}
@Override
public void onDestroy() {
super.onDestroy();
mp.release();
}
