package com.video.zlc.audioplayer;import com.czt.mp3recorder.MP3Recorder;import com.video.zlc.audioplayer.utils.LogUtil;import java.io.File;import java.io.IOException;import java.util.UUID;/** * @author zlc */public class AudioManage {  private MP3Recorder mRecorder;  private String mDir;       // 文件夾的名稱  private String mCurrentFilePath;  private static AudioManage mInstance;  private boolean isPrepared; // 標識MediaRecorder準備完畢  private AudioManage(String dir) {    mDir = dir;    LogUtil.e("AudioManage=",mDir);  }  /**   * 回調“準備完畢”   * @author zlc   */  public interface AudioStateListenter {    void wellPrepared();  // prepared完畢  }  public AudioStateListenter mListenter;  public void setOnAudioStateListenter(AudioStateListenter audioStateListenter) {    mListenter = audioStateListenter;  }  /**   * 使用單例實現 AudioManage   * @param dir   * @return   */  public static AudioManage getInstance(String dir) {    if (mInstance == null) {      synchronized (AudioManage.class) {  // 同步        if (mInstance == null) {          mInstance = new AudioManage(dir);        }      }    }    return mInstance;  }  /**   * 準備錄音   */  public void prepareAudio() {    try {      isPrepared = false;      File dir = new File(mDir);      if (!dir.exists()) {        dir.mkdirs();      }      String fileName = GenerateFileName(); // 文件名字      File file = new File(dir, fileName); // 路徑+文件名字      //MediaRecorder可以實現錄音和錄像。需要嚴格遵守API說明中的函數調用先后順序.      mRecorder = new MP3Recorder(file);      mCurrentFilePath = file.getAbsolutePath();//     mMediaRecorder = new MediaRecorder();//     mCurrentFilePath = file.getAbsolutePath();//     mMediaRecorder.setOutputFile(file.getAbsolutePath());  // 設置輸出文件//     mMediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);  // 設置MediaRecorder的音頻源為麥克風//     mMediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.AMR_NB);  // 設置音頻的格式//     mMediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);  // 設置音頻的編碼為AMR_NB//     mMediaRecorder.prepare();//     mMediaRecorder.start();      mRecorder.start();  //開始錄音      isPrepared = true; // 準備結束      if (mListenter != null) {        mListenter.wellPrepared();      }    } catch (Exception e) {      e.printStackTrace();      LogUtil.e("prepareAudio",e.getMessage());    }  }  /**   * 隨機生成文件名稱   * @return   */  private String GenerateFileName() {    // TODO Auto-generated method stub    return UUID.randomUUID().toString() + ".mp3"; // 音頻文件格式  }  /**   * 獲得音量等級——通過mMediaRecorder獲得振幅，然后換算成聲音Level   * maxLevel最大為7；   * @return   */  public int getVoiceLevel(int maxLevel) {    if (isPrepared) {      try {        mRecorder.getMaxVolume();        return maxLevel * mRecorder.getMaxVolume() / 32768 + 1;      } catch (Exception e) {         e.printStackTrace();      }    }    return 1;  }  /**   * 釋放資源   */  public void release() {    if(mRecorder != null) {      mRecorder.stop();      mRecorder = null;    }  }  /**   * 停止錄音   */  public void stop(){    if(mRecorder!=null && mRecorder.isRecording()){      mRecorder.stop();    }  }  /**   * 取消（釋放資源+刪除文件）   */  public void delete() {    release();    if (mCurrentFilePath != null) {      File file = new File(mCurrentFilePath);      file.delete();  //刪除錄音文件      mCurrentFilePath = null;    }  }  public String getCurrentFilePath() {    return mCurrentFilePath;  }  public int getMaxVolume(){    return mRecorder.getMaxVolume();  }  public int getVolume(){    return mRecorder.getVolume();  }}

package com.video.zlc.audioplayer.utils;import android.content.Context;import android.media.AudioManager;import android.media.MediaPlayer;import android.net.Uri;/** * * @author zlc * */public class MediaManager {  private static MediaPlayer mMediaPlayer;  //播放錄音文件  private static boolean isPause = false;  static {    if(mMediaPlayer==null){      mMediaPlayer=new MediaPlayer();      mMediaPlayer.setOnErrorListener( new MediaPlayer.OnErrorListener() {        @Override        public boolean onError(MediaPlayer mp, int what, int extra) {          mMediaPlayer.reset();          return false;        }      });    }  }  /**   * 播放音頻   * @param filePath   * @param onCompletionListenter   */  public static void playSound(Context context,String filePath, MediaPlayer.OnCompletionListener onCompletionListenter){    if(mMediaPlayer==null){      mMediaPlayer = new MediaPlayer();      mMediaPlayer.setOnErrorListener( new MediaPlayer.OnErrorListener() {        @Override        public boolean onError(MediaPlayer mp, int what, int extra) {          mMediaPlayer.reset();          return false;        }      });    }else{      mMediaPlayer.reset();    }    try {      //詳見“MediaPlayer”調用過程圖      mMediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);      mMediaPlayer.setOnCompletionListener(onCompletionListenter);      mMediaPlayer.setDataSource(filePath);      mMediaPlayer.prepare();      mMediaPlayer.start();    } catch (Exception e) {      // TODO Auto-generated catch block      e.printStackTrace();      LogUtil.e("語音error==",e.getMessage());    }  }  /**   * 暫停   */  public synchronized static void pause(){    if(mMediaPlayer!=null && mMediaPlayer.isPlaying()){      mMediaPlayer.pause();      isPause=true;    }  }  //停止  public synchronized static void stop(){    if(mMediaPlayer!=null && mMediaPlayer.isPlaying()){      mMediaPlayer.stop();      isPause=false;    }  }  /**   * resume繼續   */  public synchronized static void resume(){    if(mMediaPlayer!=null && isPause){      mMediaPlayer.start();      isPause=false;    }  }  public static boolean isPause(){    return isPause;  }  public static void setPause(boolean isPause) {    MediaManager.isPause = isPause;  }  /**   * release釋放資源   */  public static void release(){    if(mMediaPlayer!=null){      isPause = false;      mMediaPlayer.stop();      mMediaPlayer.release();      mMediaPlayer = null;    }  }  public synchronized static void reset(){    if(mMediaPlayer!=null) {      mMediaPlayer.reset();      isPause = false;    }  }  /**   * 判斷是否在播放視頻   * @return   */  public synchronized static boolean isPlaying(){    return mMediaPlayer != null && mMediaPlayer.isPlaying();  }}

 private int lastPos = -1;  //播放語音 private void playVoice(final int position, String from) {    LogUtil.e("playVoice position",position+"");    if(position >= records.size()) {      LogUtil.e("playVoice","全部播放完了");      stopAnimation();      MediaManager.reset();      return;    }    String voicePath = records.get(position).getPath();    LogUtil.e("playVoice",voicePath);    if(TextUtils.isEmpty(voicePath) || !voicePath.contains(".mp3")){      Toast.makeText(this,"語音文件不合法",Toast.LENGTH_LONG).show();      return;    }    if(lastPos != position && "itemClick".equals(from)){      stopAnimation();      MediaManager.reset();    }    lastPos = position;//獲取listview某一個條目的圖片控件    int pos = position - id_list_voice.getFirstVisiblePosition();    View view = id_list_voice.getChildAt(pos);    id_iv_voice = (ImageView) view.findViewById(R.id.id_iv_voice);    LogUtil.e("playVoice position",pos+"");    if(MediaManager.isPlaying()){      MediaManager.pause();      stopAnimation();    }else if(MediaManager.isPause()){      startAnimation();      MediaManager.resume();    }else{      startAnimation();      MediaManager.playSound(this,voicePath, new MediaPlayer.OnCompletionListener() {        @Override        public void onCompletion(MediaPlayer mediaPlayer) {          //播放完停止動畫 重置MediaManager          stopAnimation();          MediaManager.reset();          playVoice(position + 1, "loop");        }      });    }  }

private int lastPosition = -1;  private void playVoice(FendaListInfo.ObjsEntity obj, int position) {    String videoPath = obj.path;    if(TextUtils.isEmpty(videoPath) || !videoPath.contains(".mp3")){      Toast.makeText(this,"語音文件不合法",Toast.LENGTH_LONG).show();      return;    }    if(position != lastPosition){ //點擊不同條目先停止動畫 重置音頻資源      stopAnimation();      MediaManager.reset();    }    if(mAdapter!=null)      mAdapter.selectItem(position, lastPosition);    lastPosition = position;    id_iv_voice.setBackgroundResource(R.drawable.animation_voice);    animationDrawable = (AnimationDrawable) id_iv_voice.getBackground();    if(MediaManager.isPlaying()){      stopAnimation();      MediaManager.pause();    }else if(MediaManager.isPause()){      startAnimation();      MediaManager.resume();    }else{      startAnimation();      MediaManager.playSound(this,videoPath, new MediaPlayer.OnCompletionListener() {        @Override        public void onCompletion(MediaPlayer mp) {          LogUtil.e("onCompletion","播放完成");          stopAnimation();          MediaManager.stop();        }      });    }  }//核心方法 //點擊了某一個條目 這個條目isSelect=true 上一個條目isSelect需要改為false 防止滑動過程中 幀動畫復用問題  public void selectItem(int position, int lastPosition) {    LogUtil.e("selectItem"," ;lastPosition="+lastPosition+" ;position="+position);    if(lastPosition >= 0 && lastPosition < mDatas.size() && lastPosition != position){      FendaListInfo.ObjsEntity bean = mDatas.get(lastPosition);      bean.isSelect = false;      mDatas.set(lastPosition, bean);      notifyDataSetChanged();    }    if(position < mDatas.size() && position != lastPosition){      FendaListInfo.ObjsEntity bean = mDatas.get(position);      bean.isSelect = true;      mDatas.set(position,bean);    }  }/** * 適配器圖片播放的動畫處理 */private void setVoiceAnimation(ImageView iv_voice, FendaListInfo.ObjsEntity obj) {    //處理動畫復用問題    AnimationDrawable animationDrawable;    if(obj.isSelect){      iv_voice.setBackgroundResource(R.drawable.animation_voice);      animationDrawable = (AnimationDrawable) iv_voice.getBackground();      if(MediaManager.isPlaying() && animationDrawable!=null){        animationDrawable.start();      }else{        iv_voice.setBackgroundResource(R.drawable.voice_listen);        animationDrawable.stop();      }    }else{      iv_voice.setBackgroundResource(R.drawable.voice_listen);    }  }