code for playing a mp3 using service

//MyService.java
 
package com.v3;
 
import android.app.Service;
import android.content.Intent;
import android.media.MediaPlayer;
import android.os.IBinder;
import android.util.Log;
import android.widget.Toast;
 
public class MyService extends Service {
	private static final String TAG = "MyService";
	MediaPlayer player;
 
	@Override
	public void onCreate() {
		Toast.makeText(this, "My Service Created", Toast.LENGTH_LONG).show();
		Log.d(TAG, "onCreate");
		Log.i(TAG, "onCreate");
 
		player = MediaPlayer.create(this, R.raw.airtel);
		player.setLooping(false); // Set looping
	}
 
	@Override
	public void onStart(Intent intent, int startid) {
		Toast.makeText(this, "My Service Started", Toast.LENGTH_LONG).show();
		Log.d(TAG, "onStart");
		player.start();
	}
 
	@Override
	public IBinder onBind(Intent intent) {
		return null;
	}
 
	@Override
	public void onDestroy() {
		Toast.makeText(this, "My Service Stopped", Toast.LENGTH_LONG).show();
		Log.d(TAG, "onDestroy");
		player.stop();
	}
 
 
}
//PlayingActivity.java
package com.v3;
 
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
 
 
	public class PlayingActivity extends Activity {
	  private static final String TAG = "ServicesDemo";
	  Button buttonStart, buttonStop;
 
	  @Override
	  public void onCreate(Bundle savedInstanceState) {
	    super.onCreate(savedInstanceState);
	    setContentView(R.layout.main);
 
	    buttonStart = (Button) findViewById(R.id.btnPlay);
	    buttonStop = (Button) findViewById(R.id.btnStop);
 
	    buttonStart.setOnClickListener(new View.OnClickListener() {
			public void onClick(View arg0) {
				 Log.d(TAG, "onClick: starting srvice");
			      startService(new Intent(PlayingActivity.this, MyService.class));
				}
 
		});
 
	    buttonStart.setOnClickListener(new View.OnClickListener() {
			public void onClick(View arg0) {
				 Log.d(TAG, "onClick: stopping srvice");
			      stopService(new Intent(PlayingActivity.this, MyService.class));
			}
		});
	  }
 
 
}
//menifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="com.v3"
      android:versionCode="1"
      android:versionName="1.0">
    <uses-sdk android:minSdkVersion="8" />
 
    <application android:icon="@drawable/icon" android:label="@string/app_name">
        <activity android:name=".PlayingActivity"
                  android:label="@string/app_name">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
       <service android:enabled="true" android:name=".MyService" />
    </application>
</manifest>
//main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    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="@string/hello"
    />
<Button android:text="PLAY" android:id="@+id/btnStop" android:layout_width="wrap_content" android:layout_height="wrap_content"></Button>
<Button android:text="STOP" android:id="@+id/btnPlay" android:layout_width="wrap_content" android:layout_height="wrap_content"></Button>
</LinearLayout>