【发布时间】：2020-06-03 00:47:50
【问题描述】：
我在玩单活动游戏时（登录和选择角色后）。我的 SFX 声音池效果很好，但我的背景音乐随机停止播放。我尝试添加 setOnErrorListener，但从未在那里看到任何东西。我想知道线程是否正在被垃圾收集？
当您在不同的城镇或荒野时，音乐会发生变化，请在此处查看：!currentPlayingMusicFilename.equals(shortFilename)。如果您停留在同一个音乐区，音乐会随机停止循环播放。
我在这里和谷歌上阅读了很多帖子，但找不到播放游戏背景音乐的“正确”方式。我尝试过 soundpool，但它们超过 1MB，看到很多东西说不提供服务，并且这种方法存在问题。非常感谢任何帮助。
我将留在“SFX”部分，以防该代码可以帮助任何人并提供完整的图片。
public static void playSoundOrMusic(final String shortFilename, final String type, double distanceFactor) {
String fullFilename = "";
if (type.equals("SFX")){
fullFilename = "res/sounds/sfx/" + shortFilename;
} else if (type.equals("MUSIC")){
if (mp3MUSICPlayer != null && mp3MUSICPlayer.isPlaying() && !currentPlayingMusicFilename.equals(shortFilename)){
mp3MUSICPlayer.stop();
}
fullFilename = "res/sounds/music/" + shortFilename;
}
float volumeManipulation = 1.0f;
if (type.equals("SFX")){
int sfxVolume = MyCommandReceiver.GetSharedPreferences().getInt(MyCommandReceiver.GetStringById(R.string.pref_general_sfx_volume_key), 100);
sfxVolume *= distanceFactor;
volumeManipulation = (float) (sfxVolume / 100.0);
//volumeManipulation = (float) (1 - (Math.log(MAX_VOLUME - sfxVolume) / Math.log(MAX_VOLUME)));
LoggerWrite("v", TAG, "sfxVolume: " + volumeManipulation);
} else if (type.equals("MUSIC")){
int musicVolume = MyCommandReceiver.GetSharedPreferences().getInt(MyCommandReceiver.GetStringById(R.string.pref_general_music_volume_key), 100);
volumeManipulation = (float) (musicVolume / 100.0);
//volumeManipulation = (float) (1 - (Math.log(MAX_VOLUME - musicVolume) / Math.log(MAX_VOLUME)));
LoggerWrite("v", TAG, "musicVolume: " + volumeManipulation);
}
final float finalVolume = volumeManipulation;
if (MyCommandReceiver.GetActiveActivity() == null){ //if not yet in Activity
return;
}
try {
Uri myUri = Uri.fromFile(new File(Environment.getExternalStorageDirectory() + "/KisnardOnline/" + fullFilename));
if (type.equals("SFX")){
if (!soundPoolIds.containsKey(Environment.getExternalStorageDirectory() + "/KisnardOnline/" + fullFilename)){ //not yet in soundpool
int soundId = soundPool.load(Environment.getExternalStorageDirectory() + "/KisnardOnline/" + fullFilename, 1);
soundPoolIds.put(Environment.getExternalStorageDirectory() + "/KisnardOnline/" + fullFilename, soundId);
//play it manually one time
mp3SFXPlayer = new MediaPlayer();
mp3SFXPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
mp3SFXPlayer.setVolume(finalVolume, finalVolume);
mp3SFXPlayer.setDataSource(MyCommandReceiver.GetActiveActivity(), myUri);
new Thread(new Runnable() {
@Override
public void run() {
try {
mp3SFXPlayer.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
@Override
public void onPrepared(MediaPlayer mp) {
mp3SFXPlayer.start();
}
});
mp3SFXPlayer.prepare();
} catch (Exception ex) {
GameActivity.LoggerWrite("e", TAG, "Sound(sfx) playing issue" + ex);
}
}
}).start();
} else { //already in soundpool - play it
soundPool.play(soundPoolIds.get(Environment.getExternalStorageDirectory() + "/KisnardOnline/" + fullFilename), finalVolume, finalVolume, 0, 0, 1);
}
} else if (type.equals("MUSIC")){
if (!currentPlayingMusicFilename.equals(shortFilename)){
mp3MUSICPlayer = new MediaPlayer();
mp3MUSICPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
mp3MUSICPlayer.setVolume(finalVolume, finalVolume);
mp3MUSICPlayer.setDataSource(MyCommandReceiver.GetActiveActivity(), myUri);
}
}
} catch (Exception e) {
GameActivity.LoggerWrite("e", TAG, "Sound file issue" + e);
}
if (type.equals("MUSIC") && !currentPlayingMusicFilename.equals(shortFilename)){
new Thread(new Runnable() {
@Override
public void run() {
try {
mp3MUSICPlayer.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
@Override
public void onPrepared(MediaPlayer mp) {
currentPlayingMusicFilename = shortFilename;
mp3MUSICPlayer.start();
}
});
mp3MUSICPlayer.prepare();
mp3MUSICPlayer.setLooping(true);
} catch (Exception ex) {
GameActivity.LoggerWrite("e", TAG, "Sound(music) playing issue" + ex);
}
}
}).start();
}
}
【问题讨论】：
-
您应该将设备中的日志（当音乐停止时）添加到问题中。
-
我没有任何日志 - 它随机发生，有时我必须玩一个多小时才能发生:(
-
也许与 stackoverflow.com/questions/30700930/mediaplayer-playback-limit 有关系，因为它在播放 28 次后停止，也没有可接受的答案，这可能很有趣。此外，此链接groups.google.com/forum/#!topic/android-platform/_tmA8DRg8q4 提到只能并行处理 30 个实例。你确定不超过？尝试以某种方式记录该号码
-
有趣。也许那时我不会失去它。那很好。我这里就放弃了，写了一些逻辑，看看是不是播放不出来，重新开始备份。
标签： java android android-mediaplayer soundpool