Play continuous audio in background of app in android?

I have made an android application in that i want to play a continuous audio in background.I have done successfully to start the audio,but when i stop the audio it starts again.My code is as below,Please suggest me any solution.. code

 public static void PlayMusic(Context context){

mediaPlayer = MediaPlayer.create(context, R.raw.saturday);

 if(!mediaPlayer.isPlaying()){
       mediaPlayer.start();
       Toast.makeText(context,
         "soundPool.pause()",
         Toast.LENGTH_LONG).show();
   }

else {
       mediaPlayer.stop();
       Toast.makeText(context,
         "soundPool.pause()",
         Toast.LENGTH_LONG).show();
   }
}