在android中播放或暂停多个音频文件

Answer 1

是的，如果您想要播放/暂停这个过程，Soundpool可能会有所帮助。

首先创建一个声音管理器，它保留在活动实例中，并创建一个映射来将音频文件链接到ID。

// Replace 10 with the maximum of sounds that you would like play at the same time.
SoundPool soundPool = new SoundPool(10, AudioManager.STREAM_MUSIC, 100); 
HashMap<String, Integer> stringToSoundID = new HashMap<String, Integer>();
HashMap<Integer, Integer> soundIdToStreamID = new HashMap<Integer, Integer>();
Integer streamIDbeingPlayed= -1;

然后将所有声音加载到soundPool中，保持文件和声音ID之间的链接。

for(String filePath: Files) {
  int soundID = soundPool.load(filePath, 1);
  stringToSoundID.put(filePath, soundID );
}

void playFile(String filePath) {
  if(streamIDbeingPlayed!= -1) {
    soundPool.pause(streamIDbeingPlayed);
  }
  Integer soundID = stringToSoundID.get(filePath);
  Integer streamID = soundIdToStreamID.get(soundID);
  if(streamID == null) {
    streamIDbeingPlayed = soundPool.play (soundID, 1, 1, 1, -1, 1);
    soundIdToStreamID.put(soundID, streamIDbeingPlayed);
  } else {
    soundPool.resume(streamID);
    streamIDbeingPlayed = streamID;
  }
}