Android仿微信语音消息的录制和播放功能

class AudioRecorderButton{ onTouchEvent(){ DOWN:  changeButtonState(STATE_RECORDING);          | DialogManager.showDialog(RECORDING)  触发LongClick事件(AudioManager.prepare() --> end prepared --> |       );          | getVoiceLevel();//开启一个线程，更新Dialog上的音量等级  MOVE:  if(wantCancel(x,y)){  DialogManager.showDialog(WANT_TO_CANCEL);更新Dialog  changeButtonState(STATE_WANT_TO_CANCEL);更新Button状态  }else{  DialogManager.showDialog(WANT_TO_CANCEL);  changeButtonState(STATE_RECORDING);  }  UP:  if(wantCancel == curState){//当前状态是想取消状态  AudioManager.cancel();  }  if(STATE_RECORDING = curState){  if(tooShort){//判断录制时长，如果录制时间过短   DialogManager.showDialog(TOO_SHORT);  }  AudioManager.release();  callbackActivity(url,time);//(当前录音文件路径，时长)  } }}

import android.media.*;import java.io.IOException;/** * 播放管理类 */public class MediaManager { private static MediaPlayer mMediaPlayer; private static boolean isPause; public static void playSound(String filePath, MediaPlayer.OnCompletionListener onCompletionListener) { 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 {  mMediaPlayer.setAudioStreamType(android.media.AudioManager.STREAM_MUSIC);  mMediaPlayer.setOnCompletionListener(onCompletionListener);  mMediaPlayer.setDataSource(filePath);  mMediaPlayer.prepare();  mMediaPlayer.start(); } catch (IOException e) {  e.printStackTrace(); } } public static void pause(){ if(mMediaPlayer != null && mMediaPlayer.isPlaying()){  mMediaPlayer.pause();  isPause = true; } } public static void resume(){ if(mMediaPlayer != null && isPause){  mMediaPlayer.start();  isPause = false; } } public static void release(){ if(mMediaPlayer != null){  mMediaPlayer.release();  mMediaPlayer = null; } }}

import android.app.Dialog;import android.content.Context;import android.view.LayoutInflater;import android.view.View;import android.widget.ImageView;import android.widget.TextView;import com.tiddlerliu.wxrecorder.R;/** * Dialog管理类 */public class DialogManager { private Dialog mDialog; private ImageView mIcon; private ImageView mVoice; private TextView mLabel; private Context mContext; public DialogManager(Context context) { mContext = context; } /** * 显示Dialog */ public void showRecordingDialog(){ //将布局应用于Dialog mDialog = new Dialog(mContext, R.style.Theme_AudioDialog); LayoutInflater inflater = LayoutInflater.from(mContext); View view = inflater.inflate(R.layout.dialog_recorder,null); mDialog.setContentView(view); //成员控件赋值 mIcon = (ImageView) mDialog.findViewById(R.id.recorder_dialog_icon); mVoice = (ImageView) mDialog.findViewById(R.id.recorder_dialog_voice); mLabel = (TextView) mDialog.findViewById(R.id.recorder_dialog_label); mDialog.show(); } public void recording(){ if(mDialog != null && mDialog.isShowing()){  mIcon.setVisibility(View.VISIBLE);  mVoice.setVisibility(View.VISIBLE);  mLabel.setVisibility(View.VISIBLE);  mIcon.setImageResource(R.mipmap.recorder);  mLabel.setText("手指上滑，取消发送"); } } public void wantToCancel(){ if(mDialog != null && mDialog.isShowing()){  mIcon.setVisibility(View.VISIBLE);  mVoice.setVisibility(View.GONE);  mLabel.setVisibility(View.VISIBLE);  mIcon.setImageResource(R.mipmap.cancel);  mLabel.setText("松开手指，取消发送"); } } public void tooShort(){ if(mDialog != null && mDialog.isShowing()){  mIcon.setVisibility(View.VISIBLE);  mVoice.setVisibility(View.GONE);  mLabel.setVisibility(View.VISIBLE);  mIcon.setImageResource(R.mipmap.voice_to_short);  mLabel.setText("录音时间过短"); } } public void dismissDialog(){ if(mDialog != null && mDialog.isShowing()){  mDialog.dismiss();  mDialog = null; } } /** * 通过level更新音量资源图片 * @param level */ public void updateVoiceLevel(int level){ if(mDialog != null && mDialog.isShowing()){  int resId = mContext.getResources().getIdentifier("v"+level,"mipmap",mContext.getPackageName());  mVoice.setImageResource(resId); } }}

<uses-permission android:name="android.permission.RECORD_AUDIO"/><uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>

import android.media.MediaRecorder;import java.io.File;import java.io.IOException;import java.util.UUID;/** * 录音管理类 */public class AudioManager { private String mDir;//文件夹名称 private MediaRecorder mMediaRecorder; private String mCurrentFilePath;//文件储存路径 private static AudioManager mInstance; //表明MediaRecorder是否进入prepare状态（状态为true才能调用stop和release方法） private boolean isPrepared; public AudioManager(String dir) { mDir = dir; } public String getCurrentFilePath() { return mCurrentFilePath; } /** * 准备完毕接口 */ public interface AudioStateListener{ void wellPrepared(); } public AudioStateListener mListener; public void setOnAudioStateListener(AudioStateListener listener){ mListener = listener; } /** * 单例 * @return AudioManager */ public static AudioManager getInstance(String dir){ if (mInstance == null){  synchronized (AudioManager.class){  if(mInstance == null){   mInstance = new AudioManager(dir);  }  } } return mInstance; } /** * 准备 */ public void prepareAudio() { try {  isPrepared = false;  File dir = new File(mDir);//创建文件夹  if (!dir.exists()) {  dir.mkdirs();  }  String fileName = generateFileName();//随机生成文件名  File file = new File(dir, fileName);//创建文件  mCurrentFilePath = file.getAbsolutePath();  mMediaRecorder = new MediaRecorder();  mMediaRecorder.setOutputFile(file.getAbsolutePath());//设置输出文件  mMediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);//设置麦克风为音频源  mMediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.AMR_NB);//设置音频格式  mMediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);//设置音频编码  mMediaRecorder.prepare();  mMediaRecorder.start();  //准备结束  isPrepared = true;  if (mListener != null){  mListener.wellPrepared();  } } catch (IOException e) {  e.printStackTrace(); } } /** * 随机生成文件的名称 * @return */ private String generateFileName() { return UUID.randomUUID().toString()+".amr"; } /** * 获取音量等级 */ public int getVoiceLevel(int maxLevel) { if (isPrepared) {  try {  //mMediaRecorder.getMaxAmplitude() 范围:1-32767  return maxLevel * mMediaRecorder.getMaxAmplitude() / 32768 + 1;//最大值 * [0,1）+ 1  } catch (Exception e) {  } } return 1; } /** * 重置 */ public void release(){ if(mMediaRecorder != null){  mMediaRecorder.stop();  mMediaRecorder.release();  mMediaRecorder = null; } } /** * 取消 */ public void cancel(){ release(); //删除产生的文件 if(mCurrentFilePath != null){  File file = new File(mCurrentFilePath);  file.delete();  mCurrentFilePath = null; } }}

import android.annotation.SuppressLint;import android.content.Context;import android.os.Environment;import android.os.Handler;import android.os.Message;import android.util.AttributeSet;import android.view.MotionEvent;import android.view.View;import android.widget.Button;import com.tiddlerliu.wxrecorder.R;/** * 自定义Button */@SuppressLint("AppCompatCustomView")public class AudioRecordButton extends Button implements AudioManager.AudioStateListener{ private static final int STATE_NORMAL = 1;//默认状态 private static final int STATE_RECORDING = 2;//录音状态 private static final int STATE_WANT_CANCEL = 3;//想取消状态 private static final int DISTANCE_Y_CANCEL = 50;//定义上滑取消距离 private int mCurState = STATE_NORMAL;//记录当前状态 private boolean isRecording = false;//是否在录音状态 private DialogManager mDialogManager; private AudioManager mAudioManager; private float mTime;//记录录音时长 private boolean mReady;//是否触发OnLongClick事件 private boolean isComplete = true;//是否已经完成 public AudioRecordButton(Context context) { this(context,null); } public AudioRecordButton(Context context, AttributeSet attrs) { super(context, attrs); mDialogManager = new DialogManager(getContext()); String dir = Environment.getExternalStorageDirectory()+"/TiddlerLiu/recorder/audios";//最好判断SD卡是否存在可读 mAudioManager = AudioManager.getInstance(dir); mAudioManager.setOnAudioStateListener(this); setOnLongClickListener(new OnLongClickListener() {  @Override  public boolean onLongClick(View v) {  mReady = true;  mAudioManager.prepareAudio();  return false;  } }); } /** * 录音完成后的回调 */ public interface AudioFinishRecorderListener { void onFinish(float seconds,String filePath); } private AudioFinishRecorderListener mAudioFinishRecorderListener; public void setAudioFinishRecorderListener(AudioFinishRecorderListener listener){ mAudioFinishRecorderListener = listener; } private static final int MSG_AUDIO_PREPARED = 0x110; private static final int MSG_VOICE_CHANGED = 0x111; private static final int MSG_DIALOG_DISMISS = 0x112; private static final int MSG_AUDIO_COMPLETE = 0x113;//达到最大时长，自动完成 /** * 获取音量大小 */ private Runnable mGetVoiceLevelRunnable = new Runnable() { @Override public void run() {  while (isRecording){  try {   Thread.sleep(100);   mTime += 0.1f;   if(mTime >= 60f){//60s自动触发完成录制   mHandler.sendEmptyMessage(MSG_AUDIO_COMPLETE);   }   mHandler.sendEmptyMessage(MSG_VOICE_CHANGED);  } catch (InterruptedException e) {   e.printStackTrace();  }  } } }; private Handler mHandler = new Handler(){ @Override public void handleMessage(Message msg) {  switch (msg.what){  case MSG_AUDIO_PREPARED:   //显示应该在audio end prepared以后   mDialogManager.showRecordingDialog();   isRecording = true;   isComplete = false;   new Thread(mGetVoiceLevelRunnable).start();   break;  case MSG_VOICE_CHANGED:   mDialogManager.updateVoiceLevel(mAudioManager.getVoiceLevel(7));   break;  case MSG_DIALOG_DISMISS:   mDialogManager.dismissDialog();   break;  case MSG_AUDIO_COMPLETE:   complete();   reset();   break;  default:   break;  } } }; @Override public void wellPrepared() { mHandler.sendEmptyMessage(MSG_AUDIO_PREPARED); } @Override public boolean onTouchEvent(MotionEvent event) { int action = event.getAction(); int x = (int) event.getX(); int y = (int) event.getY(); switch (action){  case MotionEvent.ACTION_DOWN:  changeState(STATE_RECORDING);  break;  case MotionEvent.ACTION_MOVE:  if(isRecording){   //根据(x,y)坐标，判断是否想要取消   if (wantToCancel(x,y)){   changeState(STATE_WANT_CANCEL);   }else{   changeState(STATE_RECORDING);   }  }  break;  case MotionEvent.ACTION_UP:  if(!isComplete){//没有执行超时自动完成逻辑   if (!mReady) {//还未触发OnLongClick事件   reset();   return super.onTouchEvent(event);   }   if (!isRecording || mTime < 0.6f) {//还未开始录音 或者 录制时长过短   mDialogManager.tooShort();   mAudioManager.cancel();   mHandler.sendEmptyMessageDelayed(MSG_DIALOG_DISMISS, 1300);//1.3秒后关闭对话框   } else if (mCurState == STATE_RECORDING) {//正常录制结束   complete();   } else if (mCurState == STATE_WANT_CANCEL) {//想要取消状态   mDialogManager.dismissDialog();   mAudioManager.cancel();   }   reset();  }  break; } return super.onTouchEvent(event); } /** * 正常录制结束 */ private void complete() { mDialogManager.dismissDialog(); mAudioManager.release(); if(mAudioFinishRecorderListener != null && !isComplete){  mAudioFinishRecorderListener.onFinish(mTime,mAudioManager.getCurrentFilePath()); } } /** * 恢复状态和标志位 */ private void reset() { isRecording = false; mReady = false; mTime = 0; isComplete = true; changeState(STATE_NORMAL); } /** * 根据(x,y)坐标，判断是否想要取消 * @param x * @param y * @return */ private boolean wantToCancel(int x, int y) { if(x < 0 || x > getWidth()){//手指移出button范围  return true; } if(y < - DISTANCE_Y_CANCEL || y > getHeight() + DISTANCE_Y_CANCEL){//手指移出Y轴设定范围  return true; } return false; } /** * 改变状态 * @param state */ private void changeState(int state) { if(mCurState != state){  mCurState = state;  switch (state){  case STATE_NORMAL:   setBackgroundResource(R.drawable.btn_recorder_normal);   setText(R.string.str_recorder_normal);   break;  case STATE_RECORDING:   setBackgroundResource(R.drawable.btn_recorder_recording);   setText(R.string.str_recorder_recording);   if(isRecording){   mDialogManager.recording();   }   break;  case STATE_WANT_CANCEL:   setBackgroundResource(R.drawable.btn_recorder_recording);   setText(R.string.str_recorder_want_cancel);   mDialogManager.wantToCancel();   break;  default:   break;  } } }}

import android.content.Context;import android.support.annotation.NonNull;import android.support.annotation.Nullable;import android.util.DisplayMetrics;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.view.WindowManager;import android.widget.ArrayAdapter;import android.widget.TextView;import com.tiddlerliu.wxrecorder.R;import com.tiddlerliu.wxrecorder.model.Recorder;import java.util.List;public class RecorderAdapter extends ArrayAdapter<Recorder>{ private int mMinItemWidth; private int mMaxItemWidth; private LayoutInflater mInflater; public RecorderAdapter(@NonNull Context context, List<Recorder> datas) { super(context, -1 ,datas); mInflater = LayoutInflater.from(context); //获取屏幕参数 WindowManager wm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE); DisplayMetrics outMetrics = new DisplayMetrics(); wm.getDefaultDisplay().getMetrics(outMetrics); //设置最小宽度和最大宽度 mMinItemWidth = (int) (outMetrics.widthPixels * 0.16f); mMaxItemWidth = (int) (outMetrics.widthPixels * 0.64f); } @NonNull @Override public View getView(int position, @Nullable View convertView, @NonNull ViewGroup parent) { ViewHolder holder = null; if(convertView == null){  convertView = mInflater.inflate(R.layout.item_recorder,parent,false);  holder = new ViewHolder();  holder.seconds = (TextView) convertView.findViewById(R.id.item_recorder_time);  holder.length = convertView.findViewById(R.id.item_recorder_length);  convertView.setTag(holder); }else {  holder = (ViewHolder) convertView.getTag(); } //设置时长 holder.seconds.setText(Math.round(getItem(position).getTime())+ "/""); //根据时长按比例设置时长 ViewGroup.LayoutParams lp = holder.length.getLayoutParams(); lp.width = (int) (mMinItemWidth + (mMaxItemWidth/60f * getItem(position).getTime())); return convertView; } private class ViewHolder{ TextView seconds; View length; }}

import android.graphics.drawable.AnimationDrawable;import android.media.MediaPlayer;import android.os.Bundle;import android.support.v7.app.AppCompatActivity;import android.view.View;import android.widget.AdapterView;import android.widget.ArrayAdapter;import android.widget.ListView;import com.tiddlerliu.wxrecorder.CustomView.AudioRecordButton;import com.tiddlerliu.wxrecorder.CustomView.MediaManager;import com.tiddlerliu.wxrecorder.adapter.RecorderAdapter;import com.tiddlerliu.wxrecorder.model.Recorder;import java.util.ArrayList;import java.util.List;public class MainActivity extends AppCompatActivity { private ListView mListView; private AudioRecordButton mAudioRecordButton; private ArrayAdapter<Recorder> mAdapter ; private List<Recorder> mDatas = new ArrayList<>(); private View mAnimView; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); mListView = (ListView) findViewById(R.id.recorder_list); mAudioRecordButton = (AudioRecordButton) findViewById(R.id.recorder_button); mAudioRecordButton.setAudioFinishRecorderListener(new AudioRecordButton.AudioFinishRecorderListener() {  @Override  public void onFinish(float seconds, String filePath) {  Recorder recorder = new Recorder(seconds,filePath);  mDatas.add(recorder);  mAdapter.notifyDataSetChanged();  mListView.setSelection(mDatas.size()-1);  } }); mAdapter = new RecorderAdapter(this,mDatas); mListView.setAdapter(mAdapter); mListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {  @Override  public void onItemClick(AdapterView<?> parent, View view, int position, long id) {  if(mAnimView != null){   mAnimView.setBackgroundResource(R.mipmap.adj);   mAnimView = null;  }  //播放动画  mAnimView = view.findViewById(R.id.item_recorder_anim);  mAnimView.setBackgroundResource(R.drawable.play_ainm);  AnimationDrawable anim = (AnimationDrawable) mAnimView.getBackground();  anim.start();  //播放音频  MediaManager.playSound(mDatas.get(position).getFilePath(), new MediaPlayer.OnCompletionListener() {   @Override   public void onCompletion(MediaPlayer mp) {   mAnimView.setBackgroundResource(R.mipmap.adj);   }  });  } }); } @Override protected void onPause() { super.onPause(); MediaManager.pause(); } @Override protected void onResume() { super.onResume(); MediaManager.resume(); } @Override protected void onDestroy() { super.onDestroy(); MediaManager.release(); }}