Android MediaPlayer背景音乐线程随机停止

Question

我在玩的时候有一个单一的活动游戏（登录和选择角色后）。 我的SFX声音池工作得很好，但我的背景音乐随机停止播放。 我试着添加setOnErrorListener，但从来没有看到任何东西。 我想知道这个线程是否被垃圾回收了？

当你在不同的城镇或荒野中时，音乐会发生变化，这里会检查。currentPlayingMusicFilename.equals(shortFilename). 如果你呆在同一个音乐区域，随机音乐就会停止循环。

我在这里和google上看了那么多帖子，却找不到 "合适 "的方法来播放游戏背景音乐。 我试过soundpool，但他们超过1MB，看到很多东西说不要做服务，用这种方法有问题。 任何帮助都是非常感激的。

我在 "SFX "部分留下，以防那段代码能帮到大家，提供一个完整的画面。

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();
    }
}

Answer 1

下面是我如何解决这个问题，因为它似乎没有一个答案，为什么它随机死亡。

if (type.equals("MUSIC") && (!currentPlayingMusicFilename.equals(shortFilename) || !mp3MUSICPlayer.isPlaying())){
        new Thread(new Runnable() {
        ...