Android仿微信录音功能(录音后的raw文件转mp3文件)

<ant.muxi.com.audiodemo.view.SoundTextView
 android:id="@ id/record_audio"
 android:text="按住开始录音"
 android:gravity="center"
 android:background="@drawable/bg_round_black"
 android:layout_marginLeft="20dp"
 android:layout_marginRight="20dp"
 android:layout_marginBottom="40px"
 android:padding="20px"
 android:layout_width="match_parent"
 android:layout_height="wrap_content">
 </ant.muxi.com.audiodemo.view.SoundTextView>

AndPermission.with(MainActivity.this)
  .permission(Manifest.permission.RECORD_AUDIO,Manifest.permission.WRITE_EXTERNAL_STORAGE,Manifest.permission.READ_EXTERNAL_STORAGE)
  .onGranted(permissions -> {
   showSelect();
  })
  .onDenied(permissions -> {
   Toast.makeText(MainActivity.this,"请同意录音权限",Toast.LENGTH_SHORT).show();
  })
  .start();
private void showSelect() {
 SoundTextView recordAudio = findViewById(R.id.record_audio);
 recordAudio.setOnRecordFinishedListener(new SoundTextView.OnRecordFinishedListener() {
  @Override
  public void newMessage(String path, int duration) {
  int index = path.lastIndexOf("/");
  String fileName = path.substring(index   1);
  Log.e("录音文件", "path=: " path );
  }
 });
 }

package ant.muxi.com.audiodemo.view;
 import android.app.Activity;
import android.app.Dialog;
import android.content.Context;
import android.os.Environment;
import android.os.Handler;
import android.os.Message;
import android.util.AttributeSet;
import android.util.Log;
import android.view.MotionEvent;
import android.widget.TextView;
import android.widget.Toast;
import androidx.appcompat.widget.AppCompatTextView;
import java.io.File;
import ant.muxi.com.audiodemo.R;
import ant.muxi.com.audiodemo.audio.ProgressTextUtils;
import ant.muxi.com.audiodemo.audio.RecordManager;
public class SoundTextView extends AppCompatTextView {
 private Context mContext;
 private Dialog recordIndicator;
 private TextView mVoiceTime;
 private File file;
 private String type = "1";//默认开始录音 type=2，录音完毕
 RecordManager recordManager;
 File fileto;
 int level;
 private long downT;
 String sountime;
 public SoundTextView(Context context) {
 super(context);
 init();
 }
 public SoundTextView(Context context, AttributeSet attrs, int defStyle) {
 super(context, attrs, defStyle);
 this.mContext = context;
 init();
 }
 public SoundTextView(Context context, AttributeSet attrs) {
 super(context, attrs);
 this.mContext = context;
 init();
 }
 private void init() {
 recordIndicator = new Dialog(getContext(), R.style.jmui_record_voice_dialog);
 recordIndicator.setContentView(R.layout.jmui_dialog_record_voice);
 mVoiceTime = (TextView) recordIndicator.findViewById(R.id.voice_time);
 file = new File(Environment.getExternalStorageDirectory()   "/recoder.amr");
 fileto = new File(Environment.getExternalStorageDirectory()   "/recoder.mp3");
 recordManager = new RecordManager(
  (Activity) mContext,
  String.valueOf(file),
  String.valueOf(fileto));
 recordManager.setOnAudioStatusUpdateListener(new RecordManager.OnAudioStatusUpdateListener() {
  @Override
  public void onUpdate(double db) {
  //得到分贝
  if (null != recordIndicator) {
   level = (int) db;
   handler.sendEmptyMessage(0x111);
  }
  }
 });
 }
 Handler handler = new Handler() {
 @Override
 public void handleMessage(Message msg) {
  super.handleMessage(msg);
  switch (msg.what) {
  case 0x111:
   sountime = ProgressTextUtils.getSecsProgress(System.currentTimeMillis() - downT);
   long time = System.currentTimeMillis() - downT;
   mVoiceTime.setText(ProgressTextUtils.getProgressText(time));
   //判断时间
   judetime(Integer.parseInt(sountime));
   break;
  }
 }
 };
 public void judetime(int time) {
 if (time > 14) {
  //结束录制
  Toast.makeText(mContext, "录音不能超过十五秒", Toast.LENGTH_SHORT).show();
  recordManager.stop_mp3();
  new Thread() {
  @Override
  public void run() {
   super.run();
   recordManager.saveData();
   finishRecord(fileto.getPath(), sountime);
  }
  }.start();
  recordIndicator.dismiss();
  type = "2";
 }
 }
 @Override
 public boolean onTouchEvent(MotionEvent event) {
 int action = event.getAction();
 switch (action) {
  case MotionEvent.ACTION_DOWN:
  if (type.equals("1")) {
   //开始发送时间
   downT = System.currentTimeMillis();
   recordManager.start_mp3();
   recordIndicator.show();
  } else {
   Log.e("-log-", "您已经录制完毕: ");
  }
  return true;
  case MotionEvent.ACTION_UP:
  if (type.equals("1")) {
   try {
   if (Integer.parseInt(sountime) > 2) {
    recordManager.stop_mp3();
    new Thread() {
    @Override
    public void run() {
     super.run();
     recordManager.saveData();
     finishRecord(fileto.getPath(), sountime);
    }
    }.start();
    if (recordIndicator.isShowing()) {
    recordIndicator.dismiss();
    }
    type = "2";
   } else {
    recordManager.stop_mp3();
    if (recordIndicator.isShowing()) {
    recordIndicator.dismiss();
    }
    sountime = null;
    Toast.makeText(mContext, "录音时间少于3秒，请重新录制", Toast.LENGTH_SHORT).show();
   }
   } catch (Exception e) {
   recordManager.stop_mp3();
   if (recordIndicator.isShowing()) {
    recordIndicator.dismiss();
   }
   sountime = null;
   Toast.makeText(mContext, "录音时间少于3秒，请重新录制", Toast.LENGTH_SHORT).show();
   }
  }
  break;
  case MotionEvent.ACTION_CANCEL:
  if (recordIndicator.isShowing()) {
   recordIndicator.dismiss();
  }
  break;
 }
 return super.onTouchEvent(event);
 }
 //录音完毕加载 ListView item
 private void finishRecord(String path, String time) {
 if (onRecordFinishedListener != null) {
  onRecordFinishedListener.newMessage(path, Integer.parseInt(time));
  type = "1";
 }
 //发送语音
 // Toasts.toast(getContext(),"您已经录完了一条语音" myRecAudioFile);
 }
 private OnRecordFinishedListener onRecordFinishedListener;
 public void setOnRecordFinishedListener(OnRecordFinishedListener onRecordFinishedListener) {
 this.onRecordFinishedListener = onRecordFinishedListener;
 }
 public interface OnRecordFinishedListener {
 void newMessage(String path, int duration);
 }
}

public class RecordManager {
 //录制成MP3格式..............................................
 /**构造时候需要的Activity，主要用于获取文件夹的路径*/
 private Activity activity;
 /**文件代号*/
 public static final int RAW = 0X00000001;
 public static final int MP3 = 0X00000002;
 /**文件路径*/
 private String rawPath = null;
 private String mp3Path = null;
 /**采样频率*/
 private static final int SAMPLE_RATE = 11025;
 /**录音需要的一些变量*/
 private short[] mBuffer;
 private AudioRecord mRecorder;
 /**录音状态*/
 private boolean isRecording = false;
 /**是否转换ok*/
 private boolean convertOk = false;
 public RecordManager(Activity activity, String rawPath, String mp3Path) {
 this.activity = activity;
 this.rawPath = rawPath;
 this.mp3Path = mp3Path;
 }
 /**开始录音*/
 public boolean start_mp3() {
 // 如果正在录音，则返回
 if (isRecording) {
  return isRecording;
 }
 // 初始化
 if (mRecorder == null) {
  initRecorder();
 }
 getFilePath();
 mRecorder.startRecording();
 startBufferedWrite(new File(rawPath));
 isRecording = true;
 return isRecording;
 }
 /**停止录音，并且转换文件,这很可能是个耗时操作，建议在后台中做*/
 public boolean stop_mp3() {
 if (!isRecording) {
  return isRecording;
 }
 // 停止
 mRecorder.stop();
 isRecording = false;
//TODO
 // 开始转换（转换代码就这两句）
// FLameUtils lameUtils = new FLameUtils(1, SAMPLE_RATE, 96);
// convertOk = lameUtils.raw2mp3(rawPath, mp3Path);
// return isRecording ^ convertOk;// convertOk==true,return true
 return isRecording;
 }
 public void saveData(){
 FLameUtils lameUtils = new FLameUtils(1, SAMPLE_RATE, 96);
 convertOk = lameUtils.raw2mp3(rawPath, mp3Path);
 }
 /**获取文件的路径*/
 public String getFilePath(int fileAlias) {
 if (fileAlias == RAW) {
  return rawPath;
 } else if (fileAlias == MP3) {
  return mp3Path;
 } else
  return null;
 }
 /**清理文件*/
 public void cleanFile(int cleanFlag) {
 File f = null;
 try {
  switch (cleanFlag) {
  case MP3:
   f = new File(mp3Path);
   if (f.exists())
   f.delete();
   break;
  case RAW:
   f = new File(rawPath);
   if (f.exists())
   f.delete();
   break;
  case RAW | MP3:
   f = new File(rawPath);
   if (f.exists())
   f.delete();
   f = new File(mp3Path);
   if (f.exists())
   f.delete();
   break;
  }
  f = null;
 } catch (Exception e) {
  e.printStackTrace();
 }
 }
 /**关闭,可以先调用cleanFile来清理文件*/
 public void close() {
 if (mRecorder != null)
  mRecorder.release();
 activity = null;
 }
 /**初始化*/
 private void initRecorder() {
 int bufferSize = AudioRecord.getMinBufferSize(SAMPLE_RATE,
  AudioFormat.CHANNEL_IN_MONO, AudioFormat.ENCODING_PCM_16BIT);
 mBuffer = new short[bufferSize];
 mRecorder = new AudioRecord(MediaRecorder.AudioSource.MIC, SAMPLE_RATE,
  AudioFormat.CHANNEL_IN_MONO, AudioFormat.ENCODING_PCM_16BIT,
  bufferSize);
 }
 /**设置路径，第一个为raw文件，第二个为mp3文件*/
 private void getFilePath() {
 try {
  String folder = "audio_recorder_2_mp3";
  String fileName = String.valueOf(System.currentTimeMillis());
  if (rawPath == null) {
  File raw = new File(activity.getDir(folder,
   activity.MODE_PRIVATE), fileName   ".raw");
  raw.createNewFile();
  rawPath = raw.getAbsolutePath();
  raw = null;
  }
  if (mp3Path == null) {
  File mp3 = new File(activity.getDir(folder,
   activity.MODE_PRIVATE), fileName   ".mp3");
  mp3.createNewFile();
  mp3Path = mp3.getAbsolutePath();
  mp3 = null;
  }
  Log.d("rawPath", rawPath);
  Log.d("mp3Path", mp3Path);
 } catch (Exception e) {
  e.printStackTrace();
 }
 }
 /**执行cmd命令，并等待结果*/
 private boolean runCommand(String command) {
 boolean ret = false;
 Process process = null;
 try {
  process = Runtime.getRuntime().exec(command);
  process.waitFor();
  ret = true;
 } catch (Exception e) {
  e.printStackTrace();
 } finally {
  try {
  process.destroy();
  } catch (Exception e) {
  e.printStackTrace();
  }
 }
 return ret;
 }
 /**写入到raw文件*/
 private void startBufferedWrite(final File file) {
 Object mLock = new Object();
 new Thread(new Runnable() {
  @Override
  public void run() {
  DataOutputStream output = null;
  try {
   output = new DataOutputStream(new BufferedOutputStream(
    new FileOutputStream(file)));
   while (isRecording) {//开始录制
   int readSize = mRecorder.read(mBuffer, 0,
    mBuffer.length);//是实际读取的数据长度
   for (int i = 0; i < readSize; i  ) {
    output.writeShort(mBuffer[i]);
   }
   long v = 0;
   // 将 buffer 内容取出，进行平方和运算
   for (int i = 0; i < mBuffer.length; i  ) {
    v  = mBuffer[i] * mBuffer[i];
   }
   // 平方和除以数据总长度，得到音量大小。
   double mean = v / (double) readSize;
   double volume = 10 * Math.log10(mean);
   synchronized (mLock) {
    try {
    if(null != audioStatusUpdateListener) {
     audioStatusUpdateListener.onUpdate(volume);
    }
    mLock.wait(100);
    } catch (InterruptedException e) {
    e.printStackTrace();
    }
   }
   }
  } catch (IOException e) {
   e.printStackTrace();
  } finally {
   if (output != null) {
   try {
    output.flush();
   } catch (IOException e) {
    e.printStackTrace();
   } finally {
    try {
    output.close();
    } catch (IOException e) {
    e.printStackTrace();
    }
   }
   }
  }
  }
 }).start();
 }
 public RecordManager.OnAudioStatusUpdateListener audioStatusUpdateListener;
 public void setOnAudioStatusUpdateListener(RecordManager.OnAudioStatusUpdateListener audioStatusUpdateListener) {
 this.audioStatusUpdateListener = audioStatusUpdateListener;
 }
 public interface OnAudioStatusUpdateListener {
 public void onUpdate(double db);
 }
}