public class MediaRecorderActivity extends BaseActivity { private Button start_tv; private ListView listView; //線程操作 private ExecutorService mExecutorService; //錄音API private MediaRecorder mMediaRecorder; //錄音開始時間與結束時間 private long startTime, endTime; //錄音所保存的文件 private File mAudioFile; //文件列表數據 private List<FileBean> dataList; //錄音文件數據列表適配器 private AudioAdapter mAudioAdapter; //錄音文件保存位置 private String mFilePath = Environment.getExternalStorageDirectory().getAbsolutePath() + "/audio/"; //當前是否正在播放 private volatile boolean isPlaying; //播放音頻文件API private MediaPlayer mediaPlayer; //使用Handler更新UI線程 private Handler mHandler = new Handler() {  @Override  public void handleMessage(Message msg) {   super.handleMessage(msg);   switch (msg.what) {    case Constant.RECORD_SUCCESS:     //錄音成功，展示數據     if (null == mAudioAdapter) {      mAudioAdapter = new AudioAdapter(MediaRecorderActivity.this, dataList, R.layout.file_item_layout);     }     listView.setAdapter(mAudioAdapter);     break;    //錄音失敗    case Constant.RECORD_FAIL:     showToastMsg(getString(R.string.record_fail));     break;    //錄音時間太短    case Constant.RECORD_TOO_SHORT:     showToastMsg(getString(R.string.time_too_short));     break;    case Constant.PLAY_COMPLETION:     showToastMsg(getString(R.string.play_over));     break;    case Constant.PLAY_ERROR:     showToastMsg(getString(R.string.play_error));     break;   }  } }; @Override protected void setWindowView() {  setContentView(R.layout.activity_record);  //錄音及播放要使用單線程操作  mExecutorService = Executors.newSingleThreadExecutor();  dataList = new ArrayList<>(); } @Override protected void initViews() {  this.start_tv = (Button) findViewById(R.id.start_tv);  this.listView = (ListView) findViewById(R.id.listview); } @Override protected void initEvents() {  //類似微信等應用按住說話進行錄音，所以用OnTouch事件  this.start_tv.setOnTouchListener(new View.OnTouchListener() {   @Override   public boolean onTouch(View view, MotionEvent motionEvent) {    switch (motionEvent.getAction()) {     //按下操作     case MotionEvent.ACTION_DOWN:      //安卓6.0以上錄音相應權限處理      if (Build.VERSION.SDK_INT > 22) {       permissionForM();      } else {       startRecord();      }      break;     //松開操作     case MotionEvent.ACTION_CANCEL:     case MotionEvent.ACTION_UP:      stopRecord();      break;    }    //對OnTouch事件做了處理，返回true    return true;   }  });  //點擊播放對應的錄音文件  this.listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {   @Override   public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {    //使用MediaPlayer播放聲音文件    startPlay(dataList.get(i).getFile());   }  }); } /**  * @description 開始進行錄音  * @author ldm  * @time 2017/2/9 9:18  */ private void startRecord() {  start_tv.setText(R.string.stop_by_up);  start_tv.setBackgroundResource(R.drawable.bg_gray_round);  //異步任務執行錄音操作  mExecutorService.submit(new Runnable() {   @Override   public void run() {    //播放前釋放資源    releaseRecorder();    //執行錄音操作    recordOperation();   }  }); } /**  * @description 錄音失敗處理  * @author ldm  * @time 2017/2/9 9:35  */ private void recordFail() {  mAudioFile = null;  mHandler.sendEmptyMessage(Constant.RECORD_FAIL); } /**  * @description 錄音操作  * @author ldm  * @time 2017/2/9 9:34  */ private void recordOperation() {  //創建MediaRecorder對象  mMediaRecorder = new MediaRecorder();  //創建錄音文件,.m4a為MPEG-4音頻標準的文件的擴展名  mAudioFile = new File(mFilePath + System.currentTimeMillis() + ".m4a");  //創建父文件夾  mAudioFile.getParentFile().mkdirs();  try {   //創建文件   mAudioFile.createNewFile();   //配置mMediaRecorder相應參數   //從麥克風采集聲音數據   mMediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);   //設置保存文件格式為MP4   mMediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);   //設置采樣頻率,44100是所有安卓設備都支持的頻率,頻率越高，音質越好，當然文件越大   mMediaRecorder.setAudioSamplingRate(44100);   //設置聲音數據編碼格式,音頻通用格式是AAC   mMediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AAC);   //設置編碼頻率   mMediaRecorder.setAudioEncodingBitRate(96000);   //設置錄音保存的文件   mMediaRecorder.setOutputFile(mAudioFile.getAbsolutePath());   //開始錄音   mMediaRecorder.prepare();   mMediaRecorder.start();   //記錄開始錄音時間   startTime = System.currentTimeMillis();  } catch (Exception e) {   e.printStackTrace();   recordFail();  } } /**  * @description 結束錄音操作  * @author ldm  * @time 2017/2/9 9:18  */ private void stopRecord() {  start_tv.setText(R.string.speak_by_press);  start_tv.setBackgroundResource(R.drawable.bg_white_round);  //停止錄音  mMediaRecorder.stop();  //記錄停止時間  endTime = System.currentTimeMillis();  //錄音時間處理，比如只有大于2秒的錄音才算成功  int time = (int) ((endTime - startTime) / 1000);  if (time >= 3) {   //錄音成功,添加數據   FileBean bean = new FileBean();   bean.setFile(mAudioFile);   bean.setFileLength(time);   dataList.add(bean);   //錄音成功,發Message   mHandler.sendEmptyMessage(Constant.RECORD_SUCCESS);  } else {   mAudioFile = null;   mHandler.sendEmptyMessage(Constant.RECORD_TOO_SHORT);  }  //錄音完成釋放資源  releaseRecorder(); } /**  * @description 翻放錄音相關資源  * @author ldm  * @time 2017/2/9 9:33  */ private void releaseRecorder() {  if (null != mMediaRecorder) {   mMediaRecorder.release();   mMediaRecorder = null;  } } @Override public void onClick(View view) { } @Override protected void onDestroy() {  super.onDestroy();  //頁面銷毀，線程要關閉  mExecutorService.shutdownNow(); } /*******6.0以上版本手機權限處理***************************/ /**  * @description 兼容手機6.0權限管理  * @author ldm  * @time 2016/5/24 14:59  */ private void permissionForM() {  if (ContextCompat.checkSelfPermission(this,    Manifest.permission.RECORD_AUDIO) != PackageManager.PERMISSION_GRANTED || ContextCompat.checkSelfPermission(this,    Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {   ActivityCompat.requestPermissions(this,     new String[]{Manifest.permission.RECORD_AUDIO, Manifest.permission.WRITE_EXTERNAL_STORAGE},     Constant.PERMISSIONS_REQUEST_FOR_AUDIO);  } else {   startRecord();  } } @Override public void onRequestPermissionsResult(int requestCode,           @NonNull String[] permissions, @NonNull int[] grantResults) {  if (requestCode == Constant.PERMISSIONS_REQUEST_FOR_AUDIO) {   if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {    startRecord();   }   return;  }  super.onRequestPermissionsResult(requestCode, permissions, grantResults); } /**  * @description 播放音頻  * @author ldm  * @time 2017/2/9 16:54  */ private void playAudio(final File mFile) {  if (null != mFile && !isPlaying) {   isPlaying = true;   mExecutorService.submit(new Runnable() {    @Override    public void run() {     startPlay(mFile);    }   });  } } /**  * @description 開始播放音頻文件  * @author ldm  * @time 2017/2/9 16:56  */ private void startPlay(File mFile) {  try {   //初始化播放器   mediaPlayer = new MediaPlayer();   //設置播放音頻數據文件   mediaPlayer.setDataSource(mFile.getAbsolutePath());   //設置播放監聽事件   mediaPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {    @Override    public void onCompletion(MediaPlayer mediaPlayer) {     //播放完成     playEndOrFail(true);    }   });   //播放發生錯誤監聽事件   mediaPlayer.setOnErrorListener(new MediaPlayer.OnErrorListener() {    @Override    public boolean onError(MediaPlayer mediaPlayer, int i, int i1) {     playEndOrFail(false);     return true;    }   });   //播放器音量配置   mediaPlayer.setVolume(1, 1);   //是否循環播放   mediaPlayer.setLooping(false);   //準備及播放   mediaPlayer.prepare();   mediaPlayer.start();  } catch (IOException e) {   e.printStackTrace();   //播放失敗正理   playEndOrFail(false);  } } /**  * @description 停止播放或播放失敗處理  * @author ldm  * @time 2017/2/9 16:58  */ private void playEndOrFail(boolean isEnd) {  isPlaying = false;  if (isEnd) {   mHandler.sendEmptyMessage(Constant.PLAY_COMPLETION);  } else {   mHandler.sendEmptyMessage(Constant.PLAY_ERROR);  }  if (null != mediaPlayer) {   mediaPlayer.setOnCompletionListener(null);   mediaPlayer.setOnErrorListener(null);   mediaPlayer.stop();   mediaPlayer.reset();   mediaPlayer.release();   mediaPlayer = null;  } }}

<LinearLayout  xmlns:android="http://schemas.android.com/apk/res/android"  android:layout_width="match_parent"  android:layout_height="match_parent"  android:orientation="vertical"  android:paddingLeft="@dimen/activity_horizontal_margin"  android:paddingRight="@dimen/activity_horizontal_margin"  android:paddingTop="@dimen/activity_vertical_margin"  android:paddingBottom="@dimen/activity_vertical_margin"> <Button   android:id="@+id/start_tv"   android:layout_width="match_parent"   android:layout_height="wrap_content"   android:text="開始錄音"   android:textSize="16sp"   /> <ListView   android:id="@+id/listview"   android:layout_width="match_parent"   android:layout_height="wrap_content"   android:divider="#d1d1d1"   android:dividerHeight="1dp"   android:scrollbars="none"   android:layout_marginTop="10dp"   android:layout_marginBottom="10dp"></ListView></LinearLayout>

<resources> <string name="app_name">mediarecorder</string> <string name="record_fail">錄音失敗</string> <string name="time_too_short">時間太短，請重新錄音</string> <string name="play_over">播放完成</string> <string name="play_error">抱歉，播放發生異常</string> <string name="stop_by_up">松開停止錄音</string> <string name="speak_by_press">按住說話</string> <string name="start_record">開始錄音</string> <string name="stop_record">停止錄音</string></resources>

<!--SD卡權限--><uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/><!--錄音權限--><uses-permission android:name="android.permission.RECORD_AUDIO"/>