Develop Reference

How to play/stop default sound automatically in Android?

I want to play and stop the default sound with following rules:
If the sound is not playing, let play it in 10 seconds.
If the sound is playing, let stop it and play at the first position.
Based on these above rules, I design a function as follows:
public MediaPlayer mp =null;
public void playDefaultSound(){
Uri notification = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_RINGTONE);
mp = MediaPlayer.create(getApplicationContext(), notification);
try {
if (mp.isPlaying()) {
mp.stop();
mp.release();
mp = MediaPlayer.create(getApplicationContext(), notification);
}
mp.start();
Handler handler = new Handler();
handler.postDelayed(new Runnable() {
public void run() {
mp.stop();
mp.release();
}
}, 10000);
} catch (Exception e) {
e.printStackTrace();
}
}
But sometime I still listen two sound are playing (in case of the first sound play and I call the playDefaultSound() function again). Do you think is it correct to delete the mp = MediaPlayer.create(getApplicationContext(), notification); bellow mp.release()? How could I correct the function to satisfy these rules? Thanks all

final MediaPlayer mp = new MediaPlayer();
public void playDefaultSound(){
Uri notification = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_RINGTONE);
try {
if (mp != null && mp.isPlaying()) {
mp.seekTo(0);
} else {
mp.reset();
mp.setDataSource(getApplicationNotification(), notification);
mp.start();
Handler handler = new Handler();
handler.postDelayed(new Runnable() {
public void run() {
mp.stop();
mp.release();
}
}, 10000);
} catch (Exception e) {
e.printStackTrace();
}
}
P.S. - Always see the state diagram or lifecycle of things whenever stuck.
Ref : [Android Media Player State Diagram][1]
[1]: https://developer.android.com/reference/android/media/MediaPlayer.html#StateDiagram "MediaPlayer State Diagram"

Can't stop Media Player in android

I tried almost everything found on the internet and I can't stop the media player once it starts. I'm using broadcast receiver and I'm controlling the media player using SMS. Here is my code.
public class Receiver extends BroadcastReceiver{
String body;
String address;
public static final String SMS_EXTRA_NAME="pdus";
MediaPlayer mp = new MediaPlayer();
#Override
public void onReceive(Context context, Intent intent) {
// TODO Auto-generated method stub
SharedPreferences obj1=context.getSharedPreferences("mypref", Context.MODE_PRIVATE);
String newstring=obj1.getString("key1", null);
String name=newstring;
Bundle bund=intent.getExtras();
String space="";
if(bund!=null)
{
Object[] smsExtra=(Object[])bund.get(SMS_EXTRA_NAME);
for(int i=0;i<smsExtra.length;i++)
{
SmsMessage sms=SmsMessage.createFromPdu((byte[])smsExtra[i]);
body=sms.getMessageBody().toString();
address=sms.getOriginatingAddress();
if(body.equals("ON"))
{
if(mp.isPlaying())
{
mp.stop();
}
try {
mp.reset();
AssetFileDescriptor afd;
afd = context.getAssets().openFd("file.mp3");
mp.setDataSource(afd.getFileDescriptor(),afd.getStartOffset(),afd.getLength());
mp.prepare();
mp.start();
mp.setLooping(true);
} catch (IllegalStateException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
else if(body.equals("OFF"))
{
if (mp.isPlaying()==true||mp!=null)
{
try{
mp.stop();
mp.release();
} catch(Exception e){
System.out.println("Exception"+e);
}
}
}
}
}
}
}
The media player is turning on when I send "ON", but it won't turn off. And yes I have given the required permissions in the Manifest file.

The BroadcastReciever it stays alive for around 9 seconds, you should not create big operation in it. However, you can let it start an operation like start acitivty or service and there you play a track or start download a file ...etc
If you want to only start a player and no need for user interaction, I suggest that you start a service and there you play your what you want.

I spent a lot of time studying this problem, and found out that:
The problem here is that I create a MediaPlayer inside a thread that is managed by the IntentService. And at the time of starting playback the thread is no longer valid.
So the way out is:
final Handler handler = new Handler(getMainLooper());
handler.post(new Runnable() {
#Override
public void run() {
mediaPlayer.start();
}
});
handler.postDelayed(new Runnable() {
#Override
public void run() {
if (mediaPlayer.isPlaying()) {
mediaPlayer.stop();
}
}
, 30 * 1000);
It helped me stop the mediaplayer.

How to correctly change MediaPlayer audio stream type?

I have a simple mp service to play, pause, resume audio. All works fine.
But, last night I have decided to add a feature for user to route audio to ear-piece or speaker and have been battling with mp.setAudioStreamType().
Problem is that I can't change it while service connected and mp created. I don't want to terminate service and/or unbind and rebind as it would require a lot of refactoring
How do I supposed to change AudioStreamType while playing an audio?
Here is my code:
Player service:
public class PService extends Service {
private MediaPlayer mp = new MediaPlayer();
public static final String PLAYING_FINISHED_MSG = "1";
#Override
public void onCreate() {
super.onCreate();
}
#Override
public void onDestroy() {
mp.stop();
mp.release();
}
private void playSong(String file) {
try {
mp.reset();
mp.setDataSource(file);
mp.setAudioStreamType(MYAPP.getAudioStreamType());
mp.prepare();
mp.start();
mp.setOnCompletionListener(new OnCompletionListener() {
public void onCompletion(MediaPlayer arg0) {
Intent i = new Intent();
i.setAction(MDService.PLAYING_FINISHED_MSG);
sendBroadcast(i);
}
});
toggle route button onclick
currentlyPlayingFile = file;
currentlyPlayingPhone = phone;
lastDurationBeforePause = mpInterface.getCurrentPosition();
if(MYAPP.getAudioStreamType() == AudioManager.STREAM_MUSIC)
{
MYAPP.setAudioStreamType(AudioManager.STREAM_VOICE_CALL);
recording_player_route_button.setImageResource(R.drawable.route_off);
}
else{
MYAPP.setAudioStreamType(AudioManager.STREAM_MUSIC);
recording_player_route_button.setImageResource(R.drawable.route_on);
}
try {
mpInterface.playFile(file);
player_seekbar.setProgress(0);
player_seekbar.setMax(mpInterface.getDuration());
//seekto last millisecond after switching from/to sepaker
if(seekTo>0)
{
mpInterface.seekTo(seekTo);
}
isPauseButtonPressed = false;
handleSeekBarUpdate.postDelayed(handleSeekBarUpdateJob, 1);
} catch (RemoteException e) {
e.printStackTrace();
}

The MODIFY_AUDIO_SETTINGS permission is needed in the Manifest for this to work.
AudioManager am=(AudioManager)getSystemService(Context.AUDIO_SERVICE);
am.setMode(AudioManager.MODE_NORMAL);
MediaPlayer mp=new MediaPlayer();
Uri ringtoneUri=RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
try
{
mp.setDataSource(getApplicationContext(), ringtoneUri);
mp.setAudioStreamType(AudioManager.STREAM_NOTIFICATION);
mp.prepare();
mp.start();
}
catch(Exception e)
{
//exception caught in the end zone
}

Error in handling audio file in Android while using media player class

Here is my code:
private void scanningSoundStart() {
scanningMediaPlayer = MediaPlayer.create(this, R.raw.scanning);
scanningMediaPlayer.setOnPreparedListener(new OnPreparedListener() {
#Override
public void onPrepared(MediaPlayer mp) {
}
});
scanningMediaPlayer.setOnVideoSizeChangedListener(new OnVideoSizeChangedListener() {
#Override
public void onVideoSizeChanged(MediaPlayer mp,int width, int height) {
}
});
scanningMediaPlayer.start();
}
private void scanningSoundStop() {
if (scanningMediaPlayer.isPlaying()) {
scanningMediaPlayer.stop();
//scanningMediaPlayer.release();
}
}
I'm trying to play an mp3 file from my raw folder.
The first function which is used for playing the audio file.
And the second function is used for stopping the playing audio.
I get the following error when I repeatedly playing or stopping the audio.
Error : MediaPlayer(10576): error (-19, 0)
I know that my entire approach of handling mediaplayer is wrong.
Please help me to correct this error.
And if possible suggest me how to handle mediaplayer class efficiently.

Try the following code to play audio file.
public void audioPlayer(String path, String fileName){
//set up MediaPlayer
MediaPlayer mp = new MediaPlayer();
try {
mp.setDataSource(path+"/"+fileName);
mp.prepare();
mp.start();
} catch (Exception e) {
e.printStackTrace();
}
}

Android how can play song for 30 seconds only in mediaPlayer

I am working on Android , I am creating a player for audio songs. I want to play a song only for just 30 seconds. After that, player must be closed. It should be start again, if I press START button again.
This is the code for creating a media player:
MediaPlayer mediaPlayer = new MediaPlayer();
public void songPreview(String songURL){
try{
mediaPlayer=new MediaPlayer();
mediaPlayer.setDataSource(songURL);
mediaPlayer.prepare();
mediaPlayer.start();
} catch(Exception ex){
ex.printStackTrace();
}
}
Please suggest me what code should I use to play my song only for 30 seconds after that it will stop, and if I want to play again then I have to press start button.
Note: Please provide me logic to stop media player after 30 second.
Thank you in advance.

use countdownTimer to complete your goal in which you can set countdown timer till 30 second manually. when countdown finish process it will go to finish method and execute finish method code
::
CountDownTimer cntr_aCounter = new CountDownTimer(3000, 1000) {
public void onTick(long millisUntilFinished) {
mp_xmPlayer2.start();
}
public void onFinish() {
//code fire after finish
mp_xmPlayer2.stop();
}
};cntr_aCounter.start();

private void playSoundForXSeconds(final Uri soundUri, int seconds) {
if(soundUri!=null) {
final MediaPlayer mp = new MediaPlayer();
try {
mp.setDataSource(Settings.this, soundUri);
mp.prepare();
mp.start();
}catch(Exception e) {
e.printStackTrace();
}
Handler mHandler = new Handler();
mHandler.postDelayed(new Runnable() {
public void run() {
try {
mp.stop();
}catch(Exception e) {
e.printStackTrace();
}
}
}, seconds * 1000);
}
}

This method jumps to the end of the track after a given time and allows the native onCompleted callback do its work. You'd obviously need to expand the code to handle any pause events fired before the playback completes.
private static void startMedia(final MediaPlayer mediaPlayer, #Nullable Integer previewDuration) {
mediaPlayer.start();
if( previewDuration != null) {
Handler handler = new Handler();
handler.postDelayed(new Runnable() {
#Override
public void run() {
mediaPlayer.seekTo(mediaPlayer.getDuration());
}
}, previewDuration);
}
}