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();
}
}