package com.android.imooc.chat;import java.io.IOException;import android.media.AudioManager;import android.media.MediaPlayer;import android.media.MediaPlayer.OnCompletionListener;import android.media.MediaPlayer.OnErrorListener;/** * @描述 聲音控制類 * @項目名稱 App_imooc * @包名 com.android.imooc.chat * @類名 MediaHelper * @author chenlin * @date 2013年6月17日 下午10:46:01 * @version 1.0 */public class MediaHelper {  private static MediaPlayer mPlayer;  private static boolean isPause = false;  public static void playSound(String filePath, OnCompletionListener listener) {    if (mPlayer == null) {      mPlayer = new MediaPlayer();    } else {      mPlayer.reset();    }    mPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);    mPlayer.setOnCompletionListener(listener);    mPlayer.setOnErrorListener(new OnErrorListener() {      @Override      public boolean onError(MediaPlayer mp, int what, int extra) {        mPlayer.reset();        return false;      }    });    try {      mPlayer.setDataSource(filePath);      mPlayer.prepare();    } catch (IllegalArgumentException e) {      e.printStackTrace();    } catch (SecurityException e) {      e.printStackTrace();    } catch (IllegalStateException e) {      e.printStackTrace();    } catch (IOException e) {      throw new RuntimeException("讀取文件異常：" + e.getMessage());    }    mPlayer.start();    isPause = false;  }  public static void pause() {    if (mPlayer != null && mPlayer.isPlaying()) {      mPlayer.pause();      isPause = true;    }  }  // 繼續  public static void resume() {    if (mPlayer != null && isPause) {      mPlayer.start();      isPause = false;    }  }  public static void release() {    if (mPlayer != null) {      mPlayer.release();      mPlayer = null;    }  }}