Android开发之媒体播放工具类完整示例

package com.maobang.imsdk.util;import android.media.MediaPlayer;import android.net.Uri;import android.util.Log;import java.io.FileInputStream;import java.io.IOException;import com.maobang.imsdk.app.IMApplication;/** * 媒体播放工具 */public class MediaUtil {  private static final String TAG = "MediaUtil";  private MediaPlayer player;  private EventListener eventListener;  private MediaUtil(){    player = new MediaPlayer();  }  private static MediaUtil instance = new MediaUtil();  public static MediaUtil getInstance(){    return instance;  }  public MediaPlayer getPlayer() {    return player;  }  public void setEventListener(final EventListener eventListener) {    if (player != null){      player.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {        @Override        public void onCompletion(MediaPlayer mp) {          eventListener.onStop();        }      });    }    this.eventListener = eventListener;  }  public void play(FileInputStream inputStream){    try{      if (eventListener != null){        eventListener.onStop();      }      player.reset();      player.setDataSource(inputStream.getFD());      player.prepare();      player.start();    }catch (IOException e){      Log.e(TAG, "play error:" + e);    }  }  public void stop(){    if (player != null && player.isPlaying()){      player.stop();    }  }  public long getDuration(String path){    player = MediaPlayer.create(IMApplication.getContext(), Uri.parse(path));    return player.getDuration();  }  /**   * 播放器事件监听   */  public interface EventListener{    void onStop();  }}