From the Developer Guide I took this simple example:
MediaPlayer mediaPlayer = MediaPlayer.create(context, R.raw.sound_file_1);
mediaPlayer.start(); // no need to call prepare(); create() does that for you
But there is no sound!
Any ideas?
Check your media volume in your mobile (or) below code for playing sound file :
This is Worked for me:
public void play()
{
Thread playThread = new Thread() {
public void run()
{
mediaPlayer = MediaPlayer.create(VastuActivity.this, R.raw.click);
mediaPlayer.start();
}
};
playThread.start();
}
call the method play();
You got everything right. The only reason it may not work is some problem with the sound, may be the file you are using is not supported(in that case you should see some exceptions thrown in all messages tab) or it's just your device
Related
I have yet to find an answer to this.
I have a local file (R.raw.Bob); and I am trying to use MediaPlayer to play the file.
Sometimes it plays, sometimes it does not. I have another file which plays seemingly fine every time.
My activity flow is like this: In onCreate I do the following:
MediaPlayer mBackground = MediaPlayer.create(MainAct.this, R.raw.background);
mBackground.start(); // Works as expected.
Now in a different part of the activity I have the following:
MediaPlayer mBob= MediaPlayer.create(MainActivity.this, R.raw.Bob);
mBob.start();
And nothing occurs. I have used Log.i() and the execution goes through the relevant code but the file does not start.
Why does MediaPlayer sometimes work and sometimes does not, and is there a more reliable way of playing sound files?
Try this to start:
MediaPlayer mBob = MediaPlayer.create(MainActivity.this, R.raw.Bob);
mBob.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
#Override
public void onPrepared(final MediaPlayer mp) {
mp.start();
}
});
and this to stop:
mBob.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
#Override
public void onCompletion(MediaPlayer mp) {
mp.stop();
}
});
I'm trying to write a function to play a short sound (in /res/raw) in my program, called at effectively random times throughout the program. So far I have this function:
public void playSound() {
MediaPlayer mp = new MediaPlayer();
mp = MediaPlayer.create(this, R.raw.ShortBeep);
mp.setAudioStreamType(AudioManager.STREAM_MUSIC);
mp.setLooping(false);
mp.start();
}
It works fine for awhile, but after exactly 30 plays of the sound, it stops making sound.
According to the Docs
... failure to call release() may cause subsequent instances of MediaPlayer objects to fallback to software implementations or fail altogether.
When you are done with it call mp.release() so that it can release the resources. I don't know what the limit is and I'm sure it depends on many factors. Either way you should be calling this function on your MediaPlayer object, especially if it will be used more than once.
I've just solved the exact same problem, but I'm using Xamarin. I ended up changing from holding on to a MediaPlayer instance for the lifetime of the activity to creating an instance each time I want to play a sound. I also implemented the IOnPreparedListener and IOnCompletionListener.
Hopefully you can get the idea despite it being C# code
public class ScanBarcodeView :
MvxActivity,
MediaPlayer.IOnPreparedListener,
MediaPlayer.IOnCompletionListener
{
protected override void OnCreate(Bundle bundle)
{
base.OnCreate(bundle);
SetContentView(Resource.Layout.ScanBarcodeView);
((ScanBarcodeViewModel) ViewModel).BarcodeScanFailed += (sender, args) => PlaySound(Resource.Raw.fail);
((ScanBarcodeViewModel) ViewModel).DuplicateScan += (sender, args) => PlaySound(Resource.Raw.tryagain);
}
private void PlaySound(int resource)
{
var mp = new MediaPlayer();
mp.SetDataSource(ApplicationContext, Android.Net.Uri.Parse($"android.resource://com.company.appname/{resource}"));
mp.SetOnPreparedListener(this);
mp.SetOnCompletionListener(this);
mp.PrepareAsync();
}
public void OnPrepared(MediaPlayer mp)
{
mp.Start();
}
public void OnCompletion(MediaPlayer mp)
{
mp.Release();
}
}
So, each time I want a sound to be played I create a MediaPlayer instance, so the data source, tell it that my Activity is the listener to Prepared and Completion events and prepare it. Since I'm using PrepareAsync I don't block the UI thread. When the media player is prepared the Start method on the MediaPlayer is called, and when the sound has finished playing the MediaPlayer object is released.
Before I made these changes I would get to 30 sounds played and it would all stop working. Now I've gone way past 30, also multiple sounds can be played simultaneously.
Hope that helps.
I have a problem on MediaPlayer's method : create().
(Version 2.3.3)
mMediaPlayer = new MediaPlayer();
mMediaPlayer.create(this, musicIds[0]).start();
First line is Ok, but the second line is the point.
The eclipse suggestions me "Change access to static using 'MediaPlayer'(declaring type)" and "Add #SuppressWarnings 'static-access' to on Create()".
By the way, I take eclipse's suggestions........but still don't work.
It may be suggesting you do something like this:
MediaPlayer mMediaPlayer = MediaPlayer.create(this, musicIds[0])
mMediaPlayer.start();
MediaPlayer mp = MediaPlayer.create(this, musicIds[0]);
mp.start()
On success, prepare() will already have been called and must not be called again.
Don't forget to call mp.release() after you are done with it.
I don't think the Eclipse's suggestions should be the subject for not working your code.
I will concentrate my attention on the way how the MediaPlayer is started. Beware that it may take some time until the song is initialized. So you better set the onPrepared() listener and call start() only when the mediaplayer is prepared.
mMediaPlayer.create(this, musicIds[0])
mMediaPlayer.setOnPreparedListener(new OnPreparedListener() {
#Override
public void onPrepared(MediaPlayer mp) {
mMediaPlayer.start();
}
});
This is a more complete example of how to wait for the media player to be ready to play and ensure that you are releasing the media player. Without calling mediaPlayer.release() you may have problems on subsequent calls to the MediaPlayer.
MediaPlayer mediaPlayer= MediaPlayer.create(context.getApplicationContext(), R.raw.notification_ring);
mediaPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
#Override
public void onCompletion(MediaPlayer mediaPlayer) {
mediaPlayer.release();
}
});
mediaPlayer.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
#Override
public void onPrepared(MediaPlayer mediaPlayer) {
mediaPlayer.start();
}
});
In Adnroid, at first i declare the mediaplayer by
MediaPlayer mpl;
next I have this in the onCreate method
mp = new MediaPlayer();
mp = MediaPlayer.create(this, R.raw.hit );
mp.setVolume(1, 1);
and a function that's supposed to play a sound when called
public void click()
{
mp.start();
}
yet the problem is that if the user calls this function multiple times, before it has stopped playing the last sound, it will die and stop playing any sounds, before the app is reset.
Any ideas how to fix that?
Thanks!
edit - found a solution:
mp.setOnCompletionListener(new OnCompletionListener() {
public void onCompletion(MediaPlayer mp) {
mpl.release();
}
});
public void click()
{
if( ! mp.isPlaying() ) {
mp.start();
}//if
}//met
you can disable the button.
or you can stop current playing and star
new in onClick()
I have a game in which a sound plays when a level is completed. Everything works fine to start with but after repeating a level 10 or 20 times the logcat suddenly reports:
"MediaPlayer error (-19,0)" and/or "MediaPlayer start called in state 0" and the sounds are no longer made.
I originally had the all sounds in mp3 format but, after reading that ogg may be more reliable, I converted them all to ogg, but the errors appeared just the same.
Any idea how I can fix this problem?
I was getting the same problem, I solved it by adding the following code to release the player:
mp1 = MediaPlayer.create(sound.this, R.raw.pan1);
mp1.start();
mp1.setOnCompletionListener(new OnCompletionListener() {
public void onCompletion(MediaPlayer mp) {
mp.release();
};
});
I think you are not releasing the mediaplayers you are using to play the sound..
You need to release() the media players otherwise the resources are not released , and you soon get out of memory (since you allocate them again next time). so,I think you can play twice or even thrice... but not many times without releasing the resources
MediaPlayer is not a good option when you are playing small sound effects as the user can click on multiple buttons very soon and you will have to create a MP object for all of them which doesnt happen synchronously. That is why you are not hearing sounds for every click. Go for the SoundPool Class which allows you to keep smaller sounds loaded in memory and you can play them any time you want without any lag which you would feel in a mediaplayer. http://developer.android.com/reference/android/media/SoundPool.html Here is a nice tutorial : http://www.anddev.org/using_soundpool_instead_of_mediaplayer-t3115.html
I solved both the errors (-19,0) and (-38,0) , by creating a new object of MediaPlayer every time before playing and releasing it after that.
Before :
void play(int resourceID) {
if (getActivity() != null) {
//Using the same object - Problem persists
player = MediaPlayer.create(getActivity(), resourceID);
player.setAudioStreamType(AudioManager.STREAM_MUSIC);
player.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
#Override
public void onCompletion(MediaPlayer mp) {
player.release();
}
});
player.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
#Override
public void onPrepared(MediaPlayer mp) {
mp.start();
}
});
}
}
After:
void play(int resourceID) {
if (getActivity() != null) {
//Problem Solved
//Creating new MediaPlayer object every time and releasing it after completion
final MediaPlayer player = MediaPlayer.create(getActivity(), resourceID);
player.setAudioStreamType(AudioManager.STREAM_MUSIC);
player.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
#Override
public void onCompletion(MediaPlayer mp) {
player.release();
}
});
player.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
#Override
public void onPrepared(MediaPlayer mp) {
mp.start();
}
});
}
}
This is a very old question, But this came up first in my search results So other people with the same issue will probably come upon this page eventually.
Unlike what some others have said, you can in fact use MediaPlayer for small sounds without using a lot of memory. I'll put in a little modified snippit from my soundboard app to show you what I'm getting at.
private MediaPlayer mp;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.your_layout);
mp = new MediaPlayer();
}
private void playSound(int soundID){
mp.reset();
AssetFileDescriptor sound = getResources().openRawResourceFd(soundID);
try {
mp.setDataSource(sound.getFileDescriptor(),sound.getStartOffset(),sound.getLength());
mp.prepare();
} catch (IOException e) {
e.printStackTrace();
}
mp.start();
}
with the way I set it up, you create on MediaPlayer object that you reuse everytime you play a sound so that you don't use up too much space.
You call .reset() instead of .release() because .release() is only used if you are disposing of an object, however you want to keep your MediaPlayer Object.
You use an assetfiledescriptor to set a new soundfile for your mediaplayer to play instead of setting a new object to your mediaplayer address because that way you are creating new objects within the method that aren't being handled properly and you will eventually run into the same error as you described.
This is only one of many ways to use MediaPlayer but I personally think it is the most efficient if you are only using it for small sound applications. The only issue with it is that it is relatively restrictive in what you can accomplish, but that shouldn't be much of an issue if you are indeed using it for small sound applications.
i try delete emulator and new create emulator for remove error of (-19,0) media player.