Android中MediaPlayer和SoundPool的聲音管理

1. import java.util.HashMap;
3. import yoyo.activity.CrazyActivity;
4. import yoyo.activity.R;
5. import android.content.Context;
6. import android.media.AudioManager;
7. import android.media.MediaPlayer;
8. import android.media.SoundPool;
10. /***
11. * @time 2011-10-16 12:03:15
12. * @author YangWenwei
13. * @聲音播放管理器
14. */
15. public class MediaManager {
17. /**
18. * 聲音開關 背景音樂
19. */
20. private boolean blnOpenBgSound;
22. /**
23. * 聲音開關 特效音樂
24. */
25. private boolean blnOpenEffectSound;
27. /**
28. * media 背景音樂
29. */
30. public static final int STATIC_MEDIA_TYPE_BGSOUND = 0;
32. public static final int STATIC_MEDIA_TYPE_COUNT = STATIC_MEDIA_TYPE_BGSOUND + 1;
34. private int[] mediaListID = {
35. R.raw.backsound
36. };
38. /**
39. * sound
40. */
41. public static final int STATIC_SOUND_TYPE_DINGDONG = 0;
43. public static final int STATIC_SOUND_TYPE_COUNT = STATIC_SOUND_TYPE_DINGDONG + 1;
45. private int[] soundListID = {
46. R.raw.dingdong
47. };
50. private final int maxStreams = 10; //streamType音頻池的最大音頻流數目為10
51. private final int srcQuality = 100;
52. private final int soundPriority = 1;
53. private final float soundSpeed = 1f;//播放速度 0.5 -2 之間
55. /**
56. * 游戲音效
57. */
58. private SoundPool soundPool;
59. private HashMap <Integer, Integer> soundPoolMap;
60. private HashMap <Integer, MediaPlayer> mediaMap;
62. private static MediaManager mediaManager;
64. private MediaManager(){
65. initMediaPlayer();
66. initSoundPool();
67. }
69. /***
70. * 實例MediaManager
71. * @return
72. */
73. public static MediaManager getInstance(){
77. if(mediaManager == null){
78. mediaManager = new MediaManager();
79. }
80. return mediaManager;
81. }
83. /***
84. * 是否開啟背景音樂
85. */
86. public void setOpenBgState(boolean bgSound){
87. blnOpenBgSound = bgSound;
88. if(!bgSound && mediaMap != null){
89. for (int i = 0; i < mediaMap.size(); i++) {
90. mediaMap.get(i).pause();
91. }
92. }
93. }
94. /***
95. * 是否開啟特效音樂
96. */
97. public void setOpenEffectState(boolean effectSound){
98. blnOpenEffectSound = effectSound;
99. if(!effectSound && soundPoolMap != null){
100. for (int i = 0; i < soundPoolMap.size(); i++) {
101. soundPool.pause(soundPoolMap.get(i));
102. }
103. }
104. }
107. private void initMediaPlayer(){
108. mediaMap = new HashMap<Integer, MediaPlayer>();
109. for (int i = 0; i < STATIC_SOUND_TYPE_COUNT; i++) {
110. MediaPlayer mediaPlayer = MediaPlayer.create(CrazyActivity.getInstence(), mediaListID[i]);
111. mediaMap.put(i, mediaPlayer);
112. }
113. }
115. private void initSoundPool(){
116. soundPool = new SoundPool(maxStreams, AudioManager.STREAM_MUSIC, srcQuality);
117. soundPoolMap = new HashMap<Integer, Integer>();
118. for (int i = 0; i < STATIC_SOUND_TYPE_COUNT; i++) {
119. soundPoolMap.put(i, soundPool.load(CrazyActivity.getInstence(), soundListID[i], soundPriority));
120. }
121. }
123. /**
124. * 播放MediaPlayer音樂
125. */
126. public void playMedia(int mediaType){
127. if(!blnOpenBgSound){
128. return;
129. }
130. MediaPlayer mediaPlayer = mediaMap.get(mediaType);
131. if(!mediaPlayer.isPlaying()){
132. mediaPlayer.start();
133. }
134. }
136. /**
137. * 暫停MediaPlayer音樂
138. */
139. public void pauseMedia(int mediaType){
140. MediaPlayer mediaPlayer = mediaMap.get(mediaType);
141. if(mediaPlayer.isPlaying()){
142. mediaPlayer.pause();
143. }
144. }
146. /**
147. * 播放soundPlayer音樂
148. */
149. public void playSound(int soundID, int loop){
150. if(!blnOpenEffectSound){
151. return;
152. }
153. AudioManager audioManager = (AudioManager)CrazyActivity.getInstence().getSystemService(Context.AUDIO_SERVICE);
154. float streamVolumeCurrent = audioManager.getStreamVolume(AudioManager.STREAM_MUSIC);
155. float streamVolumeMax = audioManager.getStreamMaxVolume(AudioManager.STREAM_MUSIC);
156. float volume = streamVolumeCurrent / streamVolumeMax;
157. soundPool.play(soundPoolMap.get(soundID), volume, volume, soundPriority, loop, soundSpeed);
158. }
160. /**
161. * 播放soundPlayer音樂
162. */
163. public void pauseSound(int soundID){
164. soundPool.pause(soundPoolMap.get(soundID));
165. }
166. }

在使用過程中給出用法

1. //初始化游戲聲音
2. MediaManager.getInstance(); //可以做為初始化
4. //播放MediaPlayer音頻
6. MediaManager.getInstance().playMedia(MediaManager.STATIC_MEDIA_TYPE_BGSOUND);
8. //播放soundPool音頻
10. MediaManager.getInstance().playSound(MediaManager.STATIC_SOUND_TYPE_DINGDONG);