Develop Reference

how to play sound looping without gap in android

I want to play a "wav" file of 1 seconds multiple times without gap. All my attemps failed.
My existing code is as follows;
MediaPlayer mMediaPlayer = MediaPlayer.create(this, R.raw.my5s);
MediaPlayer mMediaPlayer2 = MediaPlayer.create(this, R.raw.my5s);
mMediaPlayer.setVolume(1, 1);
mMediaPlayer.setLooping(true);
this.mMediaPlayer.setNextMediaPlayer(mMediaPlayer2);
this.mMediaPlayer.start();
I also tried the solutions in the following links;
play .ogg file
manual looping

Add this to program
mMediaPlayer.perpare();

How to get mp3 file uri and play it in android programatically

I want to make a application in which i play the .mp3 file
i play the sound by selecting it from raw or asset folder which is hard coded in code.
But i want that user pick any mp3 file anywhere from their android phone and make play it
Can any one help me
Thanks in advance

MediaPlayer mediaPlayer= MediaPlayer.create(this, R.raw.song);
mediaPlayer.start();
int duration = mediaPlayer.getDuration();
int current_position = mediaPlayer.getCurrentPosition();
mediaPlayer.pause();
Great tutorial on Media Playback through MediaPlayer:
http://www.tutorialspoint.com/android/android_mediaplayer.htm

Prevent MediaPlayer from play all mp3 files in the folder automatically

I'm from Taiwan and my English is pretty basic, thanks for your forgiveness.
I built a iPad app and published to App Store, which is a kind of communicating board (AAC for the person who has difficult on speaking). It has several buttons on main view and when user touch up one, the app will play a mp3 sound corresponding to that button. I've put all mp3 files on a folder and determining which one to play dynamically at run-time.
Recently I'm working on build the Android version of this app, but I meet a problem that is when I touch up one button on the view, the MediaPlayer play not only the corresponding one but keep playing all the rest mp3 files on the folder continuously. It doesn't happen on the development of iPad version. Any one can help me to resolve this problem and set the MediaPlayer up to working appropriately?
PS. I put all MP3 files on some sub-folders and put them on the "assets" folder. It because for some reasons, all mp3 files are using numeric file name (ex. 0123223.mp3), and which MP3 to play is according to which button user touched up, so I can't use R.raw.0123223 not only because the R class can't has a member named in numeric, but also the target mp3 file can only determining at run-time instead of compile-time, so I can't use the res/raw folder.
My code is as following:
private void PlayMP3(String mp3File) throws IOException {
AssetFileDescriptor afd = this.getAssets().openFd(mp3File);
MediaPlayer player = new MediaPlayer();
player.setOnCompletionListener(new OnCompletionListener(){
public void onCompletion(MediaPlayer mp) {
System.out.println(mp.getAudioSessionId() + " finished.");
}
});
player.setDataSource(afd.getFileDescriptor());
player.setLooping(false);
player.prepare();
player.start();
}
the parameter "mp3file" of PlayMP3 is a concatenated string of mp3 file path, according to the button user touched up.
Many thanks!

Your version would work if you had only that one file in the assets directory. The asset directory contents are put together one after another. So, if you do not specify where to start and how many bytes to read, the player will read up to the end as if they are one file.
You can accomplish what you want by using setDataSource with more arguments:
player.setDataSource(afd.getFileDescriptor(),afd.getStartOffset(),afd.getLength());
This will allow you to define the limits of the player and only play the song you specify in your string mp3File.

You did not post some code.
First step is to insert your sound file into the raw folder
Then, you need only a few lines of code:
MediaPlayer mediaPlayer = null;
mediaPlayer = MediaPlayer.create(getBaseContext(), R.raw.mysoundfile);
mediaPlayer.start();
When the application is closing, dont forget to "release" your media player:
mediaPlayer.release();
mediaPlayer = null;

Problem looping audio on android app

Due to login confusion, i'm repeating this question. If any moderator sees this, i'd like to keep this one current, as I no longer can access my former login.
A bit of a problem has presented itself to me. I am trying to play a sound continously looping in my android app.
With MediaPlayer: MP3 plays alright, but there is a gap at the end which does not exist in the file. I read it had to do with the decoder, and that ogg should work. Tried using ogg, but still get the gap, which is definitely not on the file.
With SoundPool classes and ogg (using this fellow's interesting class: http://www.droidnova.com/creating-sound-effects-in-android-part-1,570.html),
the sound starts, and a fraction of a second later, it restarts. so I get a stutering half a second of the beginning of every file, without advancing further, because it is always going back to the beginning.
Is there something really wrong with media player and it's ability to loop audio? How about the freakishy stuttering soundpool?
Thank you very much for any assistance!
Note: Karthi_Heno suggested I do this:
MediaPlayer mediaPlayer;
setVolumeControlStream(AudioManager.STREAM_MUSIC);
mediaPlayer = new MediaPlayer();
try {
AssetManager assetManager = getAssets();
AssetFileDescriptor descriptor = assetManager.openFd("music.ogg");
mediaPlayer.setDataSource(descriptor.getFileDescriptor(),
descriptor.getStartOffset(), descriptor.getLength());
mediaPlayer.prepare();
mediaPlayer.setLooping(true);
} catch (IOException e) {
textView.setText("Couldn't load music file, " + e.getMessage());
mediaPlayer = null;
}
However, when i do this, getassets gives filenotfound, even though there IS a filein assets. any thoughts either on thisassets problem, or my audio loop question?
thanks. Yep, i'm an android newb alright, can't even get sound to loop alright.

android - application displaying videos

how do i display videos retrieved from resources in my android application ?
MediaPlayer mp = new MediaPlayer();
mp = MediaPlayer.create(context, R.raw.vid);
mp.start();
i have placed a vid.3gp file in my res/raw folder..
i am getting NullPointerException.. what changes do i need to make
why so??
do we need something called as Surface Holder or something similar ?

using the MediaPlayer you should be able to play video