public class AudioRecoderUtils {
 //文件路徑
 private String filePath;
 //文件夾路徑
 private String FolderPath;
 private MediaRecorder mMediaRecorder;
 private final String TAG = "fan";
 public static final int MAX_LENGTH = 1000 * 60 * 10;// 最大錄音時(shí)長1000*60*10;
 private OnAudioStatusUpdateListener audioStatusUpdateListener;
 /**
  * 文件存儲默認(rèn)sdcard/record
  */
 public AudioRecoderUtils(){
  //默認(rèn)保存路徑為/sdcard/record/下
  this(Environment.getExternalStorageDirectory()+"/record/");
 }
 public AudioRecoderUtils(String filePath) {
  File path = new File(filePath);
  if(!path.exists())
   path.mkdirs();
  this.FolderPath = filePath;
 }
 private long startTime;
 private long endTime;
 /**
  * 開始錄音 使用amr格式
  *  錄音文件
  * @return
  */
 public void startRecord() {
  // 開始錄音
  /* ①Initial：實(shí)例化MediaRecorder對象 */
  if (mMediaRecorder == null)
   mMediaRecorder = new MediaRecorder();
  try {
   /* ②setAudioSource/setVedioSource */
   mMediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);// 設(shè)置麥克風(fēng)
   /* ②設(shè)置音頻文件的編碼：AAC/AMR_NB/AMR_MB/Default 聲音的（波形）的采樣 */
   mMediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.DEFAULT);
   /*
    * ②設(shè)置輸出文件的格式：THREE_GPP/MPEG-4/RAW_AMR/Default THREE_GPP(3gp格式
    * ，H263視頻/ARM音頻編碼)、MPEG-4、RAW_AMR(只支持音頻且音頻編碼要求為AMR_NB)
    */
   mMediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
   filePath = FolderPath + TimeUtils.getCurrentTime() + ".amr" ;
   /* ③準(zhǔn)備 */
   mMediaRecorder.setOutputFile(filePath);
   mMediaRecorder.setMaxDuration(MAX_LENGTH);
   mMediaRecorder.prepare();
   /* ④開始 */
   mMediaRecorder.start();
   // AudioRecord audioRecord.
   /* 獲取開始時(shí)間* */
   startTime = System.currentTimeMillis();
   updateMicStatus();
   Log.e("fan", "startTime" + startTime);
  } catch (IllegalStateException e) {
   Log.i(TAG, "call startAmr(File mRecAudioFile) failed!" + e.getMessage());
  } catch (IOException e) {
   Log.i(TAG, "call startAmr(File mRecAudioFile) failed!" + e.getMessage());
  }
 }
 /**
  * 停止錄音
  */
 public long stopRecord() {
  if (mMediaRecorder == null)
   return 0L;
  endTime = System.currentTimeMillis();
  //有一些網(wǎng)友反應(yīng)在5.0以上在調(diào)用stop的時(shí)候會報(bào)錯(cuò)，翻閱了一下谷歌文檔發(fā)現(xiàn)上面確實(shí)寫的有可能會報(bào)錯(cuò)的情況，捕獲異常清理一下就行了，感謝大家反饋！
  try {
   mMediaRecorder.stop();
   mMediaRecorder.reset();
   mMediaRecorder.release();
   mMediaRecorder = null;
   audioStatusUpdateListener.onStop(filePath);
   filePath = "";
  }catch (RuntimeException e){
   mMediaRecorder.reset();
   mMediaRecorder.release();
   mMediaRecorder = null;
   File file = new File(filePath);
   if (file.exists())
    file.delete();
   filePath = "";
  }
  return endTime - startTime;
 }
 /**
  * 取消錄音
  */
 public void cancelRecord(){
  try {
   mMediaRecorder.stop();
   mMediaRecorder.reset();
   mMediaRecorder.release();
   mMediaRecorder = null;
  }catch (RuntimeException e){
   mMediaRecorder.reset();
   mMediaRecorder.release();
   mMediaRecorder = null;
  }
  File file = new File(filePath);
  if (file.exists())
   file.delete();
  filePath = "";
 }
 private final Handler mHandler = new Handler();
 private Runnable mUpdateMicStatusTimer = new Runnable() {
  public void run() {
   updateMicStatus();
  }
 };
 private int BASE = 1;
 private int SPACE = 100;// 間隔取樣時(shí)間
 public void setOnAudioStatusUpdateListener(OnAudioStatusUpdateListener audioStatusUpdateListener) {
  this.audioStatusUpdateListener = audioStatusUpdateListener;
 }
 /**
  * 更新麥克狀態(tài)
  */
 private void updateMicStatus() {
  if (mMediaRecorder != null) {
   double ratio = (double)mMediaRecorder.getMaxAmplitude() / BASE;
   double db = 0;// 分貝
   if (ratio > 1) {
    db = 20 * Math.log10(ratio);
    if(null != audioStatusUpdateListener) {
     audioStatusUpdateListener.onUpdate(db,System.currentTimeMillis()-startTime);
    }
   }
   mHandler.postDelayed(mUpdateMicStatusTimer, SPACE);
  }
 }
 public interface OnAudioStatusUpdateListener {
  /**
   * 錄音中...
   * @param db 當(dāng)前聲音分貝
   * @param time 錄音時(shí)長
   */
  public void onUpdate(double db,long time);
  /**
   * 停止錄音
   * @param filePath 保存路徑
   */
  public void onStop(String filePath);
 }
}

<Button
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:text="按住說話"
 android:textColor="@android:color/white"
 android:id="@+id/button"
 android:background="@color/colorPrimary"
 />

//當(dāng)前布局文件的根layout
  final RelativeLayout rl = (RelativeLayout) findViewById(R.id.rl);
  mButton = (Button) findViewById(R.id.button);
  //PopupWindow的布局文件
  final View view = View.inflate(this, R.layout.layout_microphone, null);
  final PopupWindowFactory mPop = new PopupWindowFactory(this,view);
  //PopupWindow布局文件里面的控件
  mImageView = (ImageView) view.findViewById(R.id.iv_recording_icon);
  mTextView = (TextView) view.findViewById(R.id.tv_recording_time);
  mAudioRecoderUtils = new AudioRecoderUtils();
  //錄音回調(diào)
  mAudioRecoderUtils.setOnAudioStatusUpdateListener(new AudioRecoderUtils.OnAudioStatusUpdateListener() {
   //錄音中....db為聲音分貝，time為錄音時(shí)長
   @Override
   public void onUpdate(double db, long time) {
    //根據(jù)分貝值來設(shè)置錄音時(shí)話筒圖標(biāo)的上下波動，下面有講解
    mImageView.getDrawable().setLevel((int) (3000 + 6000 * db / 100));
    mTextView.setText(TimeUtils.long2String(time));
   }
   //錄音結(jié)束，filePath為保存路徑
   @Override
   public void onStop(String filePath) {
    Toast.makeText(MainActivity.this, "錄音保存在：" + filePath, Toast.LENGTH_SHORT).show();
    mTextView.setText(TimeUtils.long2String(0));
   }
  });
  //Button的touch監(jiān)聽
  mButton.setOnTouchListener(new View.OnTouchListener() {
   @Override
   public boolean onTouch(View v, MotionEvent event) {
    switch (event.getAction()){
     case MotionEvent.ACTION_DOWN:
      mPop.showAtLocation(rl,Gravity.CENTER,0,0);
      mButton.setText("松開保存");
      mAudioRecoderUtils.startRecord();
      break;
     case MotionEvent.ACTION_UP:
      mAudioRecoderUtils.stopRecord();  //結(jié)束錄音（保存錄音文件）
//      mAudioRecoderUtils.cancelRecord(); //取消錄音（不保存錄音文件）
      mPop.dismiss();
      mButton.setText("按住說話");
      break;
    }
    return true;
   }
  });