AlarmPlay class using Android's MediaPlayer

package com.example.android;

import android.content.Context;
import android.media.MediaPlayer;
import android.media.MediaPlayer.OnPreparedListener;
import android.util.Log;

public final class AlarmPlay {

    private static MediaPlayer sMediaPlayer;

    private AlarmPlay() {
        // prevents instantiation by other packages.
    }

    public static void playAlarm(Context context) {
        if (sMediaPlayer == null) {
            sMediaPlayer = MediaPlayer.create(context, "PASTE URI HERE");

            sMediaPlayer.setOnPreparedListener(new OnPreparedListener() {

                @Override
                public void onPrepared(MediaPlayer mp) {
                    if (Constants.LOGD) Log.d("AlarmPlay", "onPrepared");
                    sMediaPlayer.setLooping(true);
                    sMediaPlayer.start();
                }
            });
        }
    }

    public static void stopPlayAlarm() {
        if (sMediaPlayer != null) sMediaPlayer.release();
    }
}