Develop Reference

Android is hanging when I press button to play music in second time

I used these codes from this reference. They want to click on button to play music and then click again to stop playing. (in their comment they said it was worked for them but hanging for me)
It is work just for first time. I mean for first click the music is playing. for second click the music is stop but for third click the phone emulator show this error:
unfortunately your program has stopped.
This is my code:
public MediaPlayer mp;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button btn=(Button) findViewById(R.id.btnRain);
//mp = MediaPlayer.create(this, R.raw.rain);
mp = MediaPlayer.create(MainActivity.this, R.raw.rain);
btn.setOnClickListener(new View.OnClickListener() {
#Override
//MediaPlayer mp = MediaPlayer.create(getApplicationContext(), R.raw.soundFileName);
// mp.start();
public void onClick(View v) {
if (mp.isPlaying()) {
mp.stop();
mp.release();
}
else {
mp.start();
}
}
});
}

In onCreate initialize mp as :
mp = new MediaPlayer();
The error is you are releasing the media player object mp, which destroys the object, call reset method instead of release.
if (mp.isPlaying())
{
mp.stop();
mp.reset();
}
else {
mp = MediaPlayer.create(LegalActivity.this, R.raw.free1);
mp.start();
}

use this below code for play and pause the music:
public MediaPlayer mp;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button btn=(Button) findViewById(R.id.btnRain);
//mp = MediaPlayer.create(this, R.raw.rain);
mp = MediaPlayer.create(MainActivity.this, R.raw.rain);
btn.setOnClickListener(new View.OnClickListener() {
#Override
//MediaPlayer mp = MediaPlayer.create(getApplicationContext(), R.raw.soundFileName);
// mp.start();
public void onClick(View v) {
if (mp.isPlaying()) {
mp.pause();
}
else {
mp.start();
}
}
});
}

This is an AUDIO activity that works fine and it allows you to upload songs with a spinner.
public class AUDIO extends Activity{
Spinner spCanciones;
Button btnRep,btnGra,btnParar;
File audios;
String cancionSelec;
String arquivoGravar;
private MediaPlayer mediaplayer;
private boolean pause;
private MediaRecorder mediaRecorder;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_audio);
spCanciones=(Spinner)findViewById(R.id.spCanciones);
btnGra=(Button)findViewById(R.id.btnGra);
btnParar=(Button)findViewById(R.id.btnParar);
btnRep=(Button)findViewById(R.id.btnRep);
mediaplayer=new MediaPlayer();
enlazarSpinner();
//REPRODUCIR
btnRep.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
reproducir();
}
});
//PARAR
btnParar.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if (mediaplayer.isPlaying())
mediaplayer.stop();
pause=false;
}
});
//GRABAR
btnGra.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
grabarAudio();
}
});
}
public void enlazarSpinner(){
final ArrayList<String>songs=new ArrayList<>();
audios=new File(Environment.getExternalStorageDirectory().getAbsolutePath(),"/AUDIO/");
String [] play=audios.list();
for (int i=0;i<play.length;i++)songs.add(play[i]);
ArrayAdapter<String> adaptador = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, songs);
// Opcional: layout usuado para representar os datos no Spinner
adaptador.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
// Enlace do adaptador co Spinner do Layout.
spCanciones.setAdapter(adaptador);
// Escoitador
spCanciones.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> parent, View view, int pos, long id) {
cancionSelec = songs.get(pos);
Log.i("Cancion", cancionSelec);
}
#Override
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
}); // Fin da clase anónima
}
public void reproducir(){
try {
mediaplayer.reset();
mediaplayer.setDataSource(Environment.getExternalStorageDirectory().getAbsolutePath()+"/AUDIO/"+cancionSelec);
mediaplayer.prepare();
mediaplayer.start();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
Log.e("MULTIMEDIA",e.getMessage());
}
}
public void grabarAudio(){
String timeStamp = DateFormat.getDateTimeInstance().format(
new Date()).replaceAll(":", "").replaceAll("/", "_")
.replaceAll(" ", "_");
mediaRecorder = new MediaRecorder();
arquivoGravar = Environment.getExternalStorageDirectory().getAbsolutePath()+"/AUDIO/"+ timeStamp + ".3gp";
mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
mediaRecorder.setMaxDuration(10000);
mediaRecorder.setAudioEncodingBitRate(32768);
mediaRecorder.setAudioSamplingRate(8000); // No emulador só 8000 coma
mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AAC);
mediaRecorder.setOutputFile(arquivoGravar);
try {
mediaRecorder.prepare();
} catch (Exception e) {
// TODO Auto-generated catch block
mediaRecorder.reset();
}
mediaRecorder.start();
AlertDialog.Builder dialog = new AlertDialog.Builder(this)
.setMessage("GRAVANDO").setPositiveButton(
"PREME PARA PARAR",
new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog,
int which) {
// TODO Auto-generated method stub
mediaRecorder.stop();
mediaRecorder.release();
mediaRecorder = null;
}
});
dialog.show();
enlazarSpinner();
}
#Override
protected void onPause() {
super.onPause();
if (mediaplayer.isPlaying()){
mediaplayer.pause();
pause = true;
}
}
#Override
protected void onResume() {
super.onResume();
if (pause) {
mediaplayer.start();
pause = false;
}
}
#Override
protected void onSaveInstanceState(Bundle estado) {
estado.putBoolean("MEDIAPLAYER_PAUSE", pause);
super.onSaveInstanceState(estado);
}
#Override
protected void onRestoreInstanceState(Bundle savedInstanceState) {
super.onRestoreInstanceState(savedInstanceState);
savedInstanceState.putBoolean("MEDIAPLAYER_PAUSE", false);
pause = savedInstanceState.getBoolean("MEDIAPLAYER_PAUSE");
}
#Override
protected void onDestroy() {
super.onDestroy();
if (mediaplayer.isPlaying()) mediaplayer.stop();
if (mediaplayer != null) mediaplayer.release();
mediaplayer = null;
}
}

Seekbar for mp3 from sd card

This code is to read a mp3 from raw folder,But I want to change my mp3 file to another file from sd card
its new code, music played but seekbar does not work properly, when i toch it seekbar come back to frist position
public class MainActivity extends Activity implements OnClickListener {
SeekBar seek_bar;
Button play_button, pause_button;
MediaPlayer mediaPlayer;
TextView text_shown;
Handler seekHandler = new Handler();
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
getInit();
seekUpdation();
}
public void getInit() {
seek_bar = (SeekBar) findViewById(R.id.seek_bar);
play_button = (Button) findViewById(R.id.play_button);
pause_button = (Button) findViewById(R.id.pause_button);
text_shown = (TextView) findViewById(R.id.text_shown);
play_button.setOnClickListener(this);
pause_button.setOnClickListener(this);
String filePath = Environment.getExternalStorageDirectory() + "/Android/music.mp3";
mediaPlayer = new MediaPlayer();
try {
mediaPlayer.setDataSource(filePath);
} catch (IllegalArgumentException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (SecurityException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IllegalStateException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
mediaPlayer.setOnPreparedListener(new OnPreparedListener() {
#Override
public void onPrepared(MediaPlayer mediaPlayer) {
}
});
mediaPlayer.prepareAsync();
seek_bar.setMax(mediaPlayer.getDuration());
}
Runnable run = new Runnable() {
#Override
public void run() {
seekUpdation();
}
};
public void seekUpdation() {
seek_bar.setProgress(mediaPlayer.getCurrentPosition());
seekHandler.postDelayed(run, 1000);
seek_bar.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {
#Override
public void onStopTrackingTouch(SeekBar seek_bar) {
// TODO Auto-generated method stub
}
#Override
public void onStartTrackingTouch(SeekBar seek_bar) {
// TODO Auto-generated method stub
}
#Override
public void onProgressChanged(SeekBar seek_bar, int progress, boolean fromUser) {
if(fromUser){
mediaPlayer.seekTo(progress);
seek_bar.setProgress(progress);
}
}
});
}
#Override
public void onClick(View view) {
switch (view.getId()) {
case R.id.play_button:
text_shown.setText("Playing...");
mediaPlayer.start();
break;
case R.id.pause_button:
mediaPlayer.pause();
text_shown.setText("Paused...");
}
}
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
if(fromUser){
mediaPlayer.seekTo(progress);
seekBar.setProgress(progress);
}
}
#Override
public void onBackPressed() {
mediaPlayer.stop();
finish();
}
}

Just move this line
seek_bar.setMax(mediaPlayer.getDuration());
to seekUpdation() after
seekHandler.postDelayed(run, 1000);

Replace
mediaPlayer = MediaPlayer.create(this, R.raw.my_file);
with:
String filePath = Environment.getExternalStorageDirectory() + "/randomDirectory/yourFile.mp3";
mediaPlayer = new MediaPlayer();
mediaPlayer.setDataSource(filePath);
mediaPlayer.setOnPreparedListener(new OnPreparedListener() {
#Override
public void onPrepared(MediaPlayer mp) {
mediaPlayer.start();
}
});
mediaPlayer.prepareAsync();

Get time Elapsed and duration of MP3 file streaming android

When my mediaplayer starts playing, I want to get the time elapsed from the beginning of the player till the end of the media being played. For example 00:01, 00:02, 00:03, 00:04... How can i achieve this? Below is my mediaplayer class.
public class EntityPageActivity extends Activity implements Runnable, OnClickListener, OnSeekBarChangeListener{
private SeekBar seekBar;
private Button startMedia;
private Button pauseMedia;
private MediaPlayer mp;
Uri url;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.sample);
AudioControl();
}
public void AudioControl(){
seekBar = (SeekBar) findViewById(R.id.seekBar);
startMedia = (Button) findViewById(R.id.play);
pauseMedia = (Button) findViewById(R.id.pause);
startMedia.setOnClickListener(this);
pauseMedia.setOnClickListener(this);
seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
#Override
public void onStopTrackingTouch(SeekBar arg0) {
// TODO Auto-generated method stub
//System.out.println("maxvolume"+Integer.toString(maxVolume));
}
#Override
public void onStartTrackingTouch(SeekBar arg0) {
// TODO Auto-generated method stub
}
#Override
public void onProgressChanged(SeekBar arg0, int arg1, boolean arg2) {
// TODO Auto-generated method stub
mp.seekTo(arg1);
seekBar.setProgress(arg1);
}
});
}
public void run() {
int currentPosition= 0;
int total = mp.getDuration();
while (mp!=null && currentPosition<total) {
try {
Thread.sleep(1000);
currentPosition= mp.getCurrentPosition();
} catch (InterruptedException e) {
return;
} catch (Exception e) {
return;
}
seekBar.setProgress(currentPosition);
}
}
public void onClick(View v) {
if (v.equals(startMedia)) {
if (mp != null && mp.isPlaying()) return;
if(seekBar.getProgress() > 0) {
mp.start();
return;
}
mp = MediaPlayer.create(EntityPageActivity.this,Uri.parse("http://cdn-preview-e.deezer.com/stream/ed403858b3532e9c07c99d7015269848-2.mp3"));
mp.start();
seekBar.setProgress(0);
seekBar.setMax(mp.getDuration());
new Thread(this).start();
}
if (v.equals(pauseMedia) && mp!=null) {
mp.pause();
}
}
#Override
public void onProgressChanged(SeekBar seekBar, int progress,
boolean fromUser) {
// TODO Auto-generated method stub
}
#Override
public void onStartTrackingTouch(SeekBar seekBar) {
// TODO Auto-generated method stub
}
#Override
public void onStopTrackingTouch(SeekBar seekBar) {
// TODO Auto-generated method stub
}
}

Here are these two methods one is to get Media Player Current Position and second is to get total duration
// returns current position
mediaPlayer.getCurrentPosition();
//returns total duration
mediaPlayer.getDuration();
hope this will help

Implement a runnable when you start your mediaplayer:
mp.start();
Handler handler = new Handler();
Runnable runnable = new Runnable() {
public void run() {
while (mp.isPlaying()) {
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
handler.post(new Runnable() {
public void run() {
seekbar.setMax(mp.getDuration() / 1000);
currTime.setText(getDurationString(mp
.getCurrentPosition() / 1000));
seekbar.setProgress(mp
.getCurrentPosition() / 1000);
}
});
}
}
};
new Thread(runnable).start();

setLooping don't work in my videoplayer

I am a Android newbie. I want to design my personal videoplayer to play streaming music, so I use MediaPlayer and SurfaceView. The project plays streaming video successfully, but it can't be setloop. I have google many articles and read Android Developer. I can't figure out why mediaPlayer.setLooping(true) don't work here. Thanks^^
mediaPlayer.reset();
mediaPlayer.setDataSource(videoUrl);
mediaPlayer.setLooping(true);
mediaPlayer.prepare();
The code includes two parts: 1.Test_Videoplayer.java 2.Player.java
1.Test_Videoplayer.java
public class Test_Videoplayer extends Activity {
private SurfaceView surfaceView;
private Button btnPause, btnPlayUrl, btnStop;
private SeekBar skbProgress;
private Player player;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
surfaceView = (SurfaceView) this.findViewById(R.id.surfaceView1);
btnPlayUrl = (Button) this.findViewById(R.id.btnPlayUrl);
btnPlayUrl.setOnClickListener(new ClickEvent());
btnPause = (Button) this.findViewById(R.id.btnPause);
btnPause.setOnClickListener(new ClickEvent());
btnStop = (Button) this.findViewById(R.id.btnStop);
btnStop.setOnClickListener(new ClickEvent());
skbProgress = (SeekBar) this.findViewById(R.id.skbProgress);
skbProgress.setOnSeekBarChangeListener(new SeekBarChangeEvent());
player = new Player(surfaceView, skbProgress);
}
class ClickEvent implements OnClickListener {
#Override
public void onClick(View arg0) {
if (arg0 == btnPause) {
player.pause();
} else if (arg0 == btnPlayUrl) {
String url = "http://sites.google.com/site/ronforwork/Home/android-2/littleMonster.3gp";
player.playUrl(url);
} else if (arg0 == btnStop) {
player.stop();
}
}
}
class SeekBarChangeEvent implements SeekBar.OnSeekBarChangeListener {
int progress;
#Override
public void onProgressChanged(SeekBar seekBar, int progress,
boolean fromUser) {
this.progress = progress * player.mediaPlayer.getDuration()
/ seekBar.getMax();
}
#Override
public void onStartTrackingTouch(SeekBar seekBar) {
}
#Override
public void onStopTrackingTouch(SeekBar seekBar) {
player.mediaPlayer.seekTo(progress);
}
}
}
2.Player.java <-- here is mediaPlayer.setLooping(true)
public class Player implements OnBufferingUpdateListener, OnCompletionListener,
MediaPlayer.OnPreparedListener, SurfaceHolder.Callback {
private int videoWidth;
private int videoHeight;
public MediaPlayer mediaPlayer;
private SurfaceHolder surfaceHolder;
private SeekBar skbProgress;
private Timer mTimer = new Timer();
public Player(SurfaceView surfaceView, SeekBar skbProgress) {
this.skbProgress = skbProgress;
surfaceHolder = surfaceView.getHolder();
surfaceHolder.addCallback(this);
surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
mTimer.schedule(mTimerTask, 0, 1000);
}
TimerTask mTimerTask = new TimerTask() {
#Override
public void run() {
if (mediaPlayer == null)
return;
if (mediaPlayer.isPlaying() && skbProgress.isPressed() == false) {
handleProgress.sendEmptyMessage(0);
}
}
};
Handler handleProgress = new Handler() {
public void handleMessage(Message msg) {
int position = mediaPlayer.getCurrentPosition();
int duration = mediaPlayer.getDuration();
if (duration > 0) {
long pos = skbProgress.getMax() * position / duration;
skbProgress.setProgress((int) pos);
}
};
};
public void play() {
mediaPlayer.start();
}
public void playUrl(String videoUrl) {
try {
mediaPlayer.reset();
mediaPlayer.setDataSource(videoUrl);
mediaPlayer.setLooping(true);
mediaPlayer.prepare();
} catch (IllegalArgumentException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IllegalStateException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public void pause() {
mediaPlayer.pause();
}
public void stop() {
if (mediaPlayer != null) {
mediaPlayer.stop();
mediaPlayer.release();
mediaPlayer = null;
}
}
#Override
public void surfaceChanged(SurfaceHolder arg0, int arg1, int arg2, int arg3) {
Log.e("mediaPlayer", "surface changed");
}
#Override
public void surfaceCreated(SurfaceHolder arg0) {
try {
mediaPlayer = new MediaPlayer();
mediaPlayer.setDisplay(surfaceHolder);
mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
mediaPlayer.setOnBufferingUpdateListener(this);
mediaPlayer.setOnPreparedListener(this);
} catch (Exception e) {
Log.e("mediaPlayer", "error", e);
}
Log.e("mediaPlayer", "surface created");
}
#Override
public void surfaceDestroyed(SurfaceHolder arg0) {
Log.e("mediaPlayer", "surface destroyed");
}
#Override
public void onPrepared(MediaPlayer arg0) {
videoWidth = mediaPlayer.getVideoWidth();
videoHeight = mediaPlayer.getVideoHeight();
if (videoHeight != 0 && videoWidth != 0) {
arg0.start();
}
Log.e("mediaPlayer", "onPrepared");
}
#Override
public void onCompletion(MediaPlayer arg0) {
// TODO Auto-generated method stub
}
#Override
public void onBufferingUpdate(MediaPlayer arg0, int bufferingProgress) {
skbProgress.setSecondaryProgress(bufferingProgress);
int currentProgress = skbProgress.getMax()
* mediaPlayer.getCurrentPosition() / mediaPlayer.getDuration();
Log.e(currentProgress + "% play", bufferingProgress + "% buffer");
}
}

Android mediaplayer with seekbar

How to use the seekbar in android mediplayer? I used the below code. seekbar working at a firstsong only then turn away from my application.
mp = MediaPlayer.create(player.this, (Integer) plsong.get(i));
mp.start();
mp.setOnCompletionListener(new OnCompletionListener() {
public void onCompletion(MediaPlayer player) {
mp.release();
sname.setText(" ");
if (j < (plsong.size() - 1)) {
j++;
mp = MediaPlayer.create(player.this,(Integer) plsong.get(j));
sname.setText((CharSequence) soname.get(j));
mp.start();
mp.setOnCompletionListener(this);
}
}
});
mp.setOnPreparedListener(new OnPreparedListener() {
public void onPrepared(MediaPlayer mpss) {
// TODO Auto-generated method stub
total = mp.getDuration();
System.out.println("total" + total);
}
});
seekbar.setProgress(0);
seekbar.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {
public void onStopTrackingTouch(SeekBar arg0) {
// TODO Auto-generated method stub
}
public void onStartTrackingTouch(SeekBar arg0) {
// TODO Auto-generated method stub
}
public void onProgressChanged(SeekBar seekBar, int progress,
boolean fromUser) {
// TODO Auto-generated method stub
if (fromUser) {
mp.seekTo(progress);
seekBar.setProgress(progress);
}
}
});
Thread currentThread = new Thread(MyCounter.this);
currentThread.start();
mplay = (Button) findViewById(R.id.mplay);
if(!mp.isPlaying())
{
mplay.setText("Pause");
mplay.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
mp.start();
seekbar.setMax(total);
}
});
}
else
{
mplay.setText("play");
mplay.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
mp.pause();
}
});
}
}
public void run() {
// TODO Auto-generated method stub
try {
while (mp != null) {
int currentPosition = mp.getCurrentPosition();
Message msg = new Message();
msg.what = currentPosition;
threadHandler.sendMessage(msg);
}
Thread.sleep(100);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
private Handler threadHandler = new Handler() {
public void handleMessage(Message msg) {
seekbar.setProgress(msg.what);
}
};

Remove all the threads you created to move the seekbar and add these:
mp.setOnBufferingUpdateListener(new OnBufferingUpdateListener(){
public void onBufferingUpdate(MediaPlayer mp, int percent) {
SeekBar seekBar = (SeekBar)findViewById(R.id.seekBar);
if (mp.isPlaying() && seekBar!=null) {
seekBar.setProgress(mp.getCurrentPosition());
}
}
});