Android Open Source - Avoidance Audio Manager

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License

The source code is released under:

GNU General Public License

Java Source Code

/*
 * Copyright (c) 2012 Filip Brynfors//from   ww  w. j  a  v  a  2s  . c  o  m
 *
 * This file is part of Avoidance.
 *
 * Avoidance is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Avoidance is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Avoidance. If not, see <http://www.gnu.org/licenses/>.
 *
 */

package se.chalmers.avoidance.util;

import java.util.HashMap;
import java.util.Map;

import org.andengine.audio.music.Music;
import org.andengine.audio.sound.Sound;

/**
 * A manager that stores and plays music and sounds.
 * 
 * @author Filip Brynfors
 * 
 */
public final class AudioManager {
  private Map<String, Music> musicMap = new HashMap<String, Music>();
  private Map<String, Sound> soundMap = new HashMap<String, Sound>();
  private Music currentMusic = null;
  private static AudioManager am;

  // Hidden constructor for the singleton pattern
  private AudioManager() {
  }

  /**
   * Gets the AudioManager instance.
   * 
   * @return the audioManager
   */
  public static synchronized AudioManager getInstance() {
    if (am == null) {
      am = new AudioManager();
    }
    return am;
  }

  /**
   * Adds a new music to the manager.
   * 
   * @param name
   *            the name of the music
   * @param music
   *            the music
   */
  public void addMusic(String name, Music music) {
    musicMap.put(name, music);
  }

  /**
   * Adds a new sound to the manager.
   * 
   * @param name
   *            the name of the sound
   * @param sound
   *            the sound
   */
  public void addSound(String name, Sound sound) {
    soundMap.put(name, sound);
  }

  /**
   * Removes a music from the manager.
   * 
   * @param name
   *            the name of the music
   */
  public void removeMusic(String name) {
    musicMap.remove(name);
  }

  /**
   * Removes a sound from the manager.
   * 
   * @param name
   *            the name of the sound
   */
  public void removeSound(String name) {
    soundMap.remove(name);
  }

  /**
   * Plays the music with the given name.
   * 
   * @param name
   *            the name of the music
   */
  public void playMusic(String name) {
    // Pause the current music
    if (currentMusic != null) {
      currentMusic.pause();
    }

    currentMusic = musicMap.get(name);
    // Reset and resume if the music has been played already, else just play
    // it
    if (currentMusic != null) {
      if (currentMusic.isPlaying()) {
        currentMusic.seekTo(0);
        currentMusic.resume();
      } else {
        currentMusic.play();
      }
    }
  }

  /**
   * Plays the sound with the given name.
   * 
   * @param name
   *            the name of the sound
   */
  public void playSound(String name) {
    if (soundMap.containsKey(name)) {
      soundMap.get(name).play();
    }
  }

  /**
   * Pauses the music.
   */
  public void pause() {
    if (currentMusic != null) {
      currentMusic.pause();
    }
  }

  /**
   * Resumes the music.
   */
  public void resume() {
    if (currentMusic != null) {
      // if the currentMusic is stored since the last time the
      // app was run
      if (currentMusic.isReleased()) {
        currentMusic = null;
      } else {
        currentMusic.resume();
      }
    }
  }

}

Java Source Code List

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