Develop Reference

Android Media player run in background

I have created android app to stream online radio station and I want to run it in background using service.How to create service to run media player in background?
Here is source code of the application:
public class MainActivity extends AppCompatActivity
{
private ImageButton buttonPlay,buttonStop,buttonPause;
private String STREAM_URL = "http://178.149.86.162:8000/";
private MediaPlayer mPlayer;
Intent playbackServiceIntent;
#Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
buttonPlay = (ImageButton) findViewById(R.id.buttonPlay);
buttonStop = (ImageButton) findViewById(R.id.buttonStopPlay);
buttonPause = (ImageButton) findViewById(R.id.buttonPause);
mPlayer = new MediaPlayer();
buttonPlay.setOnClickListener(new OnClickListener()
{
#Override
public void onClick(View v)
{
try
{
mPlayer.reset();
mPlayer.setDataSource(STREAM_URL);
mPlayer.prepareAsync();
mPlayer.setOnPreparedListener(new MediaPlayer.OnPreparedListener()
{
#Override
public void onPrepared(MediaPlayer mp)
{
mPlayer.start();
}
});
} catch (IOException e)
{
e.printStackTrace();
}
startService();
}
});
buttonStop.setOnClickListener(new OnClickListener()
{
#Override
public void onClick(View v)
{
mPlayer.stop();
stopService();
}
});
buttonPause.setOnClickListener(new OnClickListener()
{
#Override
public void onClick(View v)
{
mPlayer.pause();
stopService();
}
});
playbackServiceIntent = new Intent(this, BackgroundService.class);
}
private void startService()
{
startService(new Intent(MainActivity.this,BackgroundService.class));
}
private void stopService()
{
stopService(new Intent(MainActivity.this,BackgroundService.class));
}
}
public class BackgroundService extends Service implements OnCompletionListener
{
MediaPlayer mediaPlayer;
private String STREAM_URL = "http://178.149.86.162:8000/";
#Override
public IBinder onBind(Intent intent) {
return null;
}
#Override
public void onCreate()
{
mediaPlayer = new MediaPlayer();
try
{
mediaPlayer.setDataSource(STREAM_URL);
} catch (IOException e)
{
e.printStackTrace();
}
mediaPlayer.setOnCompletionListener(this);
}
#Override
public int onStartCommand(Intent intent, int flags, int startId) {
if (!mediaPlayer.isPlaying()) {
try
{
mediaPlayer.reset();
mediaPlayer.setDataSource(STREAM_URL);
mediaPlayer.prepareAsync();
mediaPlayer.setOnPreparedListener(new MediaPlayer.OnPreparedListener()
{
#Override
public void onPrepared(MediaPlayer mp)
{
mediaPlayer.start();
}
});
} catch (IOException e)
{
e.printStackTrace();
}
}
return START_STICKY;
}
public void onDestroy() {
if (mediaPlayer.isPlaying()) {
mediaPlayer.stop();
}
mediaPlayer.release();
}
public void onCompletion(MediaPlayer _mediaPlayer) {
stopSelf();
}
}

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;
}
}

How to start MediaPlayer after it has been stopped in android

I am new to Android and in my app I am working with MediaPlayer.
When I first tap the start button, the song plays, but when I tap the stop button and then I tap on the start button again, the song does not start playing again. Here's what I have so far:
public class PlayngUrlFiles extends AppCompatActivity {
Button start, pause, stop;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.playingurls_layout);
start = (Button) findViewById(R.id.button1);
pause = (Button) findViewById(R.id.button2);
stop = (Button) findViewById(R.id.button3);
final MediaPlayer mp = new MediaPlayer();
try {
mp.setDataSource("http://programmerguru.com/android-tutorial/wp-content/uploads/2013/04/hosannatelugu.mp3");
mp.prepare();
} catch (Exception e) {
e.printStackTrace();
}
start.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
mp.start();
}
});
pause.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
mp.pause();
}
});
stop.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
mp.stop();
}
});
}
}

Try this :
stop.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if (mp != null) {
mp.stop();
mp.release();
}
}
});

just check like this way
if(mdpl.isPlaying()){
mdpl.pause();
} else {
mdpl.start();
}

You can not call start, it media player in on stop state. Take a look on the state diagram of media player MediaPlayer state diagram.
When you call stop, you have to call release(), and with start you get a new media player, or just call reset.

try this
public void onStopBtnClick(View view) {
if (mAudioHelper != null) {
mAudioHelper.stop();
displayMessage("Stopping!");
}
}

Here is code to set sound file.
if (mPlayer != null) {
mPlayer.stop();
mPlayer.release();
}
mPlayer = new MediaPlayer();
AppLog.d("Created new Media player");
try {
mPlayer.setDataSource(fileName);
} catch (IOException e) {
AppLog.e("Can't open " + fileName + " file", e);
}
Before playing u should call the mPlayer.prepareAsync() function.
if you want to pause/play you have to use this code:
if (mediaPlayer.isPlaying()){
mediaPlayer.pause();
} else {
mediaPlayer.start();
}
If you want to stop player use this:
if (mPlayer != null){
mPlayer.stop();
mPlayer.release();
}
mPlayer = null;
If you want to start song again use first functions and next with this steps

This code may help you..
#Override
protected void onDestroy() {
super.onDestroy();
destroyMediaPlayer();
}
private void destroyMediaPlayer() {
if (mediaPlayer != null) {
try {
mediaPlayer.release();
Log.d("here", "destroy");
} catch (Exception e) {
e.printStackTrace();
}
}
}

SOLUTION 1
for this solution, I took some info from here
public class PlayngUrlFiles extends AppCompatActivity {
Button start, pause, stop;
MediaPlayer mp;
/**
* remain false till media is not completed, inside OnCompletionListener make it true.
*/
private boolean initialStage = true;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.playingurls_layout);
start = (Button) findViewById(R.id.button1);
pause = (Button) findViewById(R.id.button2);
stop = (Button) findViewById(R.id.button3);
start.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if (initialStage) {
mp = new MediaPlayer();
mp.setAudioStreamType(AudioManager.STREAM_MUSIC);
new Player()
.execute("http://programmerguru.com/android-tutorial/wp-content/uploads/2013/04/hosannatelugu.mp3");
} else {
if (mp && !mp.isPlaying())
mp.start();
}
}
});
pause.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if(mp && mp.isPlaying())
mp.pause();
}
});
stop.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if(mp) {
mp.stop();
mp.release();
mp = null;
initialStage = true;
}
}
});
}
/**
* 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 {
mp.setDataSource(params[0]);
mp.setOnCompletionListener(new OnCompletionListener() {
#Override
public void onCompletion(MediaPlayer mp) {
// TODO Auto-generated method stub
initialStage = true;
mp.stop();
mp.reset();
}
});
mp.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);
mp.start();
initialStage = false;
}
public Player() {
progress = new ProgressDialog(PlayngUrlFiles.this);
}
#Override
protected void onPreExecute() {
// TODO Auto-generated method stub
super.onPreExecute();
this.progress.setMessage("Buffering...");
this.progress.show();
}
}
}
SOLUTION 2
in order to avoid data downloding, try this
public class PlayngUrlFiles extends AppCompatActivity {
Button start, pause, stop;
boolean prepared;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.playingurls_layout);
start = (Button) findViewById(R.id.button1);
pause = (Button) findViewById(R.id.button2);
stop = (Button) findViewById(R.id.button3);
final MediaPlayer mp = new MediaPlayer();
mp.setAudioStreamType(AudioManager.STREAM_MUSIC);
prepared = false;
mp.setOnPreparedListener(new OnPreparedListener() {
#Override
public void onPrepared(MediaPlayer mp) {
prepared = true;
mp.start();
}
});
try {
mp.setDataSource("http://programmerguru.com/android-tutorial/wp-content/uploads/2013/04/hosannatelugu.mp3");
} catch (Exception e) {
e.printStackTrace();
}
start.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if(mp) {
try {
if(!prepared) {
mp.prepareAsync();
prepared = true;
} else {
mp.start();
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
});
pause.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if(mp) {
mp.pause();
}
}
});
stop.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if(mp) {
mp.stop();
prepared = false;
}
}
});
}
}

#MRodrigues was right about media player states. But instead of calling release() after stop, Modify your code as below.
Currently,
try {
mp.setDataSource("http://programmerguru.com/android-tutorial/wp-content/uploads/2013/04/hosannatelugu.mp3");
mp.prepare();
} catch (Exception e) {
e.printStackTrace();
}
start.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
mp.start();
}
});
modify to,
try {
mp.setDataSource("http://programmerguru.com/android-tutorial/wp-content/uploads/2013/04/hosannatelugu.mp3");
} catch (Exception e) {
e.printStackTrace();
}
start.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if (!mp.isPlaying()) {
mp.prepare();
}
mp.start();
}
});

Getting java.lang.IllegalStateException When I unlcok screen

When i launch app and lock the screen without clicking(playing audio) button and after when i unlock the screen and press the play button i am getting Exception.
public class DemoActivity extends Activity {
MediaPlayer mp;
Button btn;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main_activity);
mp = MediaPlayer.create(DemoActivity.this,R.raw.mus);
btn = (Button) findViewById(R.id.btnOk);
btn.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
if (btn.getText().toString().equalsIgnoreCase("play")) {
mp.start();
btn.setText("Pause");
} else if (btn.getText().toString().equalsIgnoreCase("pause")) {
mp.pause();
btn.setText("Play");
}
}
});
#Override
public void onPause() {
super.onPause();
if (mp.isPlaying()) {
mp.start();
} else {
mp.release();
}
}
#Override
protected void onRestart() {
try {
if (mp.isPlaying() && mp!=null) {
mp.start();
} else {
mp.release();
}
} catch (IllegalStateException e) {
e.printStackTrace();
}
super.onRestart();
}
#Override
protected void onDestroy() {
super.onDestroy();
mp.release();
}
}
Here is my code please try to give me a solution.
Thanks in advance

please try call mp.prepare() before every mp.start(). You are getting the error because the mp is not yet ready for your use, and calling start() on that will cause IllegalStateException.

Android MediaPlayer play m3u8 only audio streamming not worked

Hi every one i write a code to play fm radio waves. In my code there are a progressbar and two buttons one of them for play and another for stop. when i click play button it not happen. how can i solve this problem? or is there good suggest for me to play audio m3u8 files?
The code I'm using is:
public class Main extends Activity implements OnClickListener {
private ProgressBar playSeekBar;
private Button buttonPlay;
private Button buttonStopPlay;
private MediaPlayer player;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
initializeUIElements();
initializeMediaPlayer();
}
private void initializeUIElements() {
playSeekBar = (ProgressBar) findViewById(R.id.progressBar1);
playSeekBar.setMax(100);
playSeekBar.setVisibility(View.INVISIBLE);
buttonPlay = (Button) findViewById(R.id.buttonPlay);
buttonPlay.setOnClickListener(this);
buttonStopPlay = (Button) findViewById(R.id.buttonStopPlay);
buttonStopPlay.setEnabled(false);
buttonStopPlay.setOnClickListener(this);
}
public void onClick(View v) {
if (v == buttonPlay) {
startPlaying();
} else if (v == buttonStopPlay) {
stopPlaying();
}
}
private void startPlaying() {
buttonStopPlay.setEnabled(true);
buttonPlay.setEnabled(false);
playSeekBar.setVisibility(View.VISIBLE);
player.prepareAsync();
player.setOnPreparedListener(new OnPreparedListener() {
public void onPrepared(MediaPlayer mp) {
player.start();
}
});
}
private void stopPlaying() {
if (player.isPlaying()) {
player.stop();
player.release();
initializeMediaPlayer();
}
buttonPlay.setEnabled(true);
buttonStopPlay.setEnabled(false);
playSeekBar.setVisibility(View.INVISIBLE);
}
private void initializeMediaPlayer() {
player = new MediaPlayer();
try {
player.setDataSource("http://url.m3u8");
} catch (IllegalArgumentException e) {
e.printStackTrace();
} catch (IllegalStateException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
player.setOnBufferingUpdateListener(new OnBufferingUpdateListener() {
public void onBufferingUpdate(MediaPlayer mp, int percent) {
playSeekBar.setSecondaryProgress(percent);
Log.i("Buffering", "" + percent);
}
});
}
#Override
protected void onPause() {
super.onPause();
if (player.isPlaying()) {
player.stop();
}
}
}

I solve this problem by vitamio library. thanks

Try to call setOnPreparedListener() before prepareAsync() if you don't get onPrepared() callback.

According to the documentation, Android 4.0 and above doesn't support mp3 chunks. It supports only ts-files.
Furthermore, if your link hasn't .m3u8 in the end a MediaPlayer can't play it. Which tells that Content-Type: application/vnd.apple.mpegurl is abandoned. And you must have .m3u8 extension in the link.