[VIDEO-Tut] - Playing Media(mp3) on the emulator

Steel · Posted: Wed Mar 19, 2008 3:36 pm Post subject:

I'm trying to play an mp3-file: beep.mp3

Winamp info box:

JaydeRyu · Freshman Joined: 16 Mar 2008 Posts: 4

markww · Freshman Joined: 24 Feb 2008 Posts: 9

Although the media player may be able to play a single sound one time, it still means it's unusable for any application that hopes to make any serious use of sound. You don't know when the sound has stopped, you can't tell how many times you'll be able to play the sound before the player crashes. I still haven't seen any solid solution on this, I've decided to ignore use of the media player until it's fixed in some distant android release. If anyone DOES have a complete solution, that'd be great to know of.

Thanks

Steel · Posted: Thu Mar 20, 2008 1:10 am Post subject:

Thanks for the reply, JaydeRyu.

prepare() throws an IOException - I tried that one first, but there was no explanation-text with the IOException. That's why I tried prepareAsync(), because then you can attach an OnErrorListener, which at least gives the clue, that what was wrong ... was 1 Laughing

I'm creating & preparing the MediaPlayer in my onCreate() in my main Activity, so specifying the class name in front of this should be redundant, but I'll try it anyway ...

JaydeRyu · Freshman Joined: 16 Mar 2008 Posts: 4

Steel · Posted: Wed Apr 02, 2008 10:31 am Post subject:

LOL, you were right, JaydeRyu: Don't prepare the MediaPlayer (like the manual says), just start it.

And to replay a sound, re-create the MP - you can't use the same object, which already played the sound. Wierd.

zengcity · Once Poster Joined: 05 May 2008 Posts: 1

I met the NullPointerException too.
And I change the <Button id="@+id/cmd_play" to <Button android:id="@+id/cmd_play" in the "main.xml" file.
It works.
Hope it helps;

irobot · Posted: Wed May 07, 2008 8:09 am Post subject:

marielisacr · Junior Developer Joined: 21 May 2008 Posts: 13

Hi, i am trying to do a media player in android. Now i can play songs from an URL, i download the .mp3 file to a temp file and play it. The problem is that after listening a few songs the emulator crashes and restart by it itselft, it doesn´t show any error.

If anyone can help i really appreciate, thanks

Steel · Posted: Wed May 21, 2008 11:21 pm Post subject:

sreekanth · Once Poster Joined: 03 Jun 2008 Posts: 1

Hi,

I am running the musicplayer on my android.I am using fedora 7 and android m5.In my system the programme is running normally but the sound is not coming.I am sending my musicplayer.java and main.xml......

package com.google.android.musicplayer;

import java.io.IOException;

import android.app.Activity;
import android.media.MediaPlayer;
import android.media.MediaPlayer.OnCompletionListener;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;

public class musicplayer extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.main);

Button cmd_play=(Button)this.findViewById(R.id.cmd_play);
cmd_play.setOnClickListener(new OnClickListener(){

//@Override
public void onClick(View arg0) {

// MediaPlayer mp=MediaPlayer.create(musicplayer.this,R.raw.santosam4);
MediaPlayer mp=new MediaPlayer();
try {
Toast.makeText(musicplayer.this, R.string.musicopen,
Toast.LENGTH_SHORT).show();

mp.setDataSource("/root/lion.wav");
mp.prepareAsync();
mp.start();
}catch(IOException e) {
Log.e("ioexception","",e);
}

Toast.makeText(musicplayer.this, R.string.musicopen,
Toast.LENGTH_SHORT).show();

mp.setOnCompletionListener(new OnCompletionListener(){

//@Override
public void onCompletion(MediaPlayer arg0){
Toast.makeText(musicplayer.this, R.string.musicclose,
Toast.LENGTH_SHORT).show();

}
});
}
});
}
}

main.xml

−
<LinearLayout android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent">
<TextView android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="Hello World, musicplayer"/>
<Button android:id="@+id/cmd_play" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="play the music ...."/>
</LinearLayout>

Regards,
Sreekanth.

drik_wen · Freshman Joined: 12 Jul 2008 Posts: 6

I try to play a mp3 file from the URL..
but the song will also stop buffering after 31%..
so I always fail to play the mp3 file
is there someone can tell me why?? a lil bit hurry..
thx in advanced

mike_lee · Once Poster Joined: 12 Jul 2008 Posts: 1

I have the same problem here using fedora 8.

I can not hear sound, even if I hit the volume up/down button on emulator.

However, I can hear the mp3 using other mp3 player on my system.

does anyone have any clue on that?

Thanks a lot in advance

-sincerely

mike

marielisacr · Junior Developer Joined: 21 May 2008 Posts: 13

Hi all,

There is a really good tutorial of how to play music from an Url here

http://www.anddev.org/viewtopic.php?p=8319#8319.

Try that and i hope you can solve your problems, it works for me.

I was capable to play sound in windows an Mac but I haven't try it on Linux.

CiprianU

Hi guys,

Can anyone of you help me with this thing:
I have an Activity which plays an .mp3, i added a SeekBar and now i want to add a label to indicate the time reached in the play. This is the code: