Android仿微信语音消息的录制和播放功能

一、简述

效果：

实现功能：

长按Button时改变Button显示文字，弹出Dialog（动态更新音量），动态生成录音文件，开始录音；

监听手指动作，规定区域。录音状态下手指划出规定区域取消录音，删除生成的录音文件；

监听手指动作。当手指抬起时，判断是否开始录音，录音时长是否过短，符合条件则提示录音时长过短；正常结束时通过回调返回该次录音的文件路径和时长。

4.点击录音列表的item时，播放动画，播放对应的音频文件。

主要用到4个核心类：

自定义录音按钮（AudioRecordButton）；

弹框管理类（DialogManager）；

录音管理类（AudioManager）。

1.AudioRecordButton状态：

1.STATE_NORMAL:普通状态

2.STATE_RECORDING:录音中

3.STATE_CANCEL：取消录音

2.DialogManager状态:

1.RECORDING：录音中

2.WANT_TO_CANCEL：取消录音

3.TOO_SHORT：录音时间太短

3.AudioManager：

1.prepare():准备状态

2.cancel()：取消录音

3.release():正常结束录音

4.getVoiceLevel()：获取音量

核心逻辑：

自定义Button，重写onTouchEvent()方法。

伪代码：

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)
 }
}
}

二、MediaManager封装

简述：使用MediaPlayer播放录制好的音频文件，要注意MediaPlayer资源的释放。

代码：

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;
}
}
}

三、DialogManager封装

封装了6个方法：

1. showRecordingDialog()：用来设置Diaog布局，拿到控件的引用，显示Dialog。

2. recording()：更改Dialog状态为录音中状态。

3. wantToCancel()：更改Dialog状态为想要取消状态。

4. tooShort()：更改Dialog状态为录音时长过短状态。

5. dismissDialog()：移除Dialog。

6. updateVoiceLevel()：用来更新音量图片。

代码：

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);
}
}
}

四、AudioManager封装

4.1 添加必要权限

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

4.2 代码

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;
}
}
}

五、AudioRecordButton封装

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;
 }
}
}
}

六、 主界面实现

6.1 adapter

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;
}
}

6.2 activity

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();
}
}

总结

以上所述是小编给大家介绍的Android仿微信语音消息的录制和播放功能网站的支持！

来源：http://blog.csdn.net/u013491677/article/details/78047749