Android仿微信录音功能

2023-08-08 18:30:03 52

提要：需求是开发类似微信发语音的功能，没有语音转文字。网上看了一些代码，不能拿来直接用，部分代码逻辑有问题，所以想把自己的代码贴出来，仅供参考。

功能：

a、设置最大录音时长和录音倒计时（为了方便测试，最大时长设置为15秒，开始倒计时设置为7秒）

b、在录音之前检查录音和存储权限

源码：

1、录音对话框管理类DialogManager：

/**
*功能：录音对话框管理类
*/
publicclassDialogManager{
privateAlertDialog.Builderbuilder;
privateAlertDialogdialog;
privateImageViewmIcon;
privateImageViewmVoice;
privateTextViewmLabel;

privateContextcontext;

/**
*构造方法
*
*@paramcontextActivity级别的Context
*/
publicDialogManager(Contextcontext){
this.context=context;
}

/**
*显示录音的对话框
*/
publicvoidshowRecordingDialog(){
builder=newAlertDialog.Builder(context,R.style.AudioRecorderDialogStyle);
LayoutInflaterinflater=LayoutInflater.from(context);
Viewview=inflater.inflate(R.layout.audio_recorder_dialog,null);
mIcon=view.findViewById(R.id.iv_dialog_icon);
mVoice=view.findViewById(R.id.iv_dialog_voice);
mLabel=view.findViewById(R.id.tv_dialog_label);

builder.setView(view);
dialog=builder.create();
dialog.show();
dialog.setCanceledOnTouchOutside(false);
}

/**
*正在播放时的状态
*/
publicvoidrecording(){
if(dialog!=null&&dialog.isShowing()){//显示状态
mIcon.setVisibility(View.VISIBLE);
mVoice.setVisibility(View.VISIBLE);
mLabel.setVisibility(View.VISIBLE);

mIcon.setImageResource(R.drawable.ic_audio_recorder);
mVoice.setImageResource(R.drawable.ic_audio_v1);
mLabel.setText(R.string.audio_record_dialog_up_to_cancel);
}
}

/**
*显示想取消的对话框
*/
publicvoidwantToCancel(){
if(dialog!=null&&dialog.isShowing()){//显示状态
mIcon.setVisibility(View.VISIBLE);
mVoice.setVisibility(View.GONE);
mLabel.setVisibility(View.VISIBLE);

mIcon.setImageResource(R.drawable.ic_audio_cancel);
mLabel.setText(R.string.audio_record_dialog_release_to_cancel);
}
}

/**
*显示时间过短的对话框
*/
publicvoidtooShort(){
if(dialog!=null&&dialog.isShowing()){//显示状态
mIcon.setVisibility(View.VISIBLE);
mVoice.setVisibility(View.GONE);
mLabel.setVisibility(View.VISIBLE);

mLabel.setText(R.string.audio_record_dialog_too_short);
}
}

//显示取消的对话框
publicvoiddismissDialog(){
if(dialog!=null&&dialog.isShowing()){//显示状态
dialog.dismiss();
dialog=null;
}
}

/**
*显示更新音量级别的对话框
*
*@paramlevel1-7
*/
publicvoidupdateVoiceLevel(intlevel){
if(dialog!=null&&dialog.isShowing()){//显示状态
mIcon.setVisibility(View.VISIBLE);
mVoice.setVisibility(View.VISIBLE);
mLabel.setVisibility(View.VISIBLE);

intresId=context.getResources().getIdentifier("ic_audio_v"+level,"drawable",context.getPackageName());
mVoice.setImageResource(resId);
}
}

publicvoidupdateTime(inttime){
if(dialog!=null&&dialog.isShowing()){//显示状态
mIcon.setVisibility(View.VISIBLE);
mVoice.setVisibility(View.VISIBLE);
mLabel.setVisibility(View.VISIBLE);
mLabel.setText(time+"s");
}
}
}

2、录音管理类AudioManager

/**
*功能：录音管理类
*/
publicclassAudioManager{
privateMediaRecordermMediaRecorder;
privateStringmDir;
privateStringmCurrentFilePath;

privatestaticAudioManagermInstance;

privatebooleanisPrepared;

privateAudioManager(Stringdir){
this.mDir=dir;
}

//单例模式：在这里实例化AudioManager并传入录音文件地址
publicstaticAudioManagergetInstance(Stringdir){
if(mInstance==null){
synchronized(AudioManager.class){
if(mInstance==null){
mInstance=newAudioManager(dir);
}
}
}
returnmInstance;
}

/**
*回调准备完毕
*/
publicinterfaceAudioStateListener{
voidwellPrepared();
}

publicAudioStateListenermListener;

/**
*回调方法
*/
publicvoidsetOnAudioStateListener(AudioStateListenerlistener){
mListener=listener;
}

/**
*准备
*/
publicvoidprepareAudio(){
try{
isPrepared=false;
Filedir=FileUtils.createNewFile(mDir);
StringfileName=generateFileName();

Filefile=newFile(dir,fileName);
mCurrentFilePath=file.getAbsolutePath();
Logger.t("AudioManager").i("audiofilename:"+mCurrentFilePath);

mMediaRecorder=newMediaRecorder();
//设置输出文件
mMediaRecorder.setOutputFile(mCurrentFilePath);
//设置MediaRecorder的音频源为麦克风
mMediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
//设置音频格式
mMediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
//设置音频的格式为AAC
mMediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AAC);
//准备录音
mMediaRecorder.prepare();
//开始
mMediaRecorder.start();
//准备结束
isPrepared=true;
if(mListener!=null){
mListener.wellPrepared();
}
}catch(Exceptione){
e.printStackTrace();
}
}

/**
*随机生成文件的名称
*/
privateStringgenerateFileName(){
returnUUID.randomUUID().toString()+".m4a";
}

publicintgetVoiceLevel(intmaxLevel){
if(isPrepared){
try{
//获得最大的振幅getMaxAmplitude()1-32767
returnmaxLevel*mMediaRecorder.getMaxAmplitude()/32768+1;
}catch(Exceptione){
}
}
return1;
}

/**
*释放资源
*/
publicvoidrelease(){
if(mMediaRecorder!=null){
mMediaRecorder.stop();
mMediaRecorder.release();
mMediaRecorder=null;
}
}

publicvoidcancel(){
release();
if(mCurrentFilePath!=null){
Filefile=newFile(mCurrentFilePath);
FileUtils.deleteFile(file);
mCurrentFilePath=null;
}
}

publicStringgetCurrentFilePath(){
returnmCurrentFilePath;
}
}

3、自定义录音按钮AudioRecorderButton

/**
*功能：录音按钮
*/
publicclassAudioRecorderButtonextendsAppCompatButton{
privateContextmContext;
//取消录音Y轴位移
privatestaticfinalintDISTANCE_Y_CANCEL=80;
//录音最大时长限制
privatestaticfinalintAUDIO_RECORDER_MAX_TIME=15;
//录音倒计时时间
privatestaticfinalintAUDIO_RECORDER_COUNT_DOWN=7;
//状态
privatestaticfinalintSTATE_NORMAL=1;//默认的状态
privatestaticfinalintSTATE_RECORDING=2;//正在录音
privatestaticfinalintSTATE_WANT_TO_CANCEL=3;//希望取消
//当前的状态
privateintmCurrentState=STATE_NORMAL;
//已经开始录音
privatebooleanisRecording=false;
//是否触发onLongClick
privatebooleanmReady;

privateDialogManagermDialogManager;
privateAudioManagermAudioManager;
privateandroid.media.AudioManageraudioManager;

publicAudioRecorderButton(Contextcontext){
this(context,null);
}

publicAudioRecorderButton(Contextcontext,AttributeSetattrs){
super(context,attrs);
this.mContext=context;
mDialogManager=newDialogManager(context);
audioManager=(android.media.AudioManager)context.getSystemService(Context.AUDIO_SERVICE);

Stringdir=SdUtils.getCustomFolder("Audios");//创建文件夹
mAudioManager=AudioManager.getInstance(dir);
mAudioManager.setOnAudioStateListener(newAudioManager.AudioStateListener(){
@Override
publicvoidwellPrepared(){
mHandler.sendEmptyMessage(MSG_AUDIO_PREPARED);
}
});
//按钮长按准备录音包括start
setOnLongClickListener(newOnLongClickListener(){
@Override
publicbooleanonLongClick(Viewv){
//先判断有没有录音和存储权限，有则开始录音，没有就申请权限
inthasAudioPermission=ContextCompat.checkSelfPermission(mContext,Manifest.permission.RECORD_AUDIO);
inthasStoragePermission=ContextCompat.checkSelfPermission(mContext,Manifest.permission.WRITE_EXTERNAL_STORAGE);
if(hasAudioPermission==PackageManager.PERMISSION_GRANTED&&hasStoragePermission==PackageManager.PERMISSION_GRANTED){
mReady=true;
mAudioManager.prepareAudio();
}else{
RxPermissionspermissions=newRxPermissions((FragmentActivity)mContext);
Disposabledisposable=permissions.request(Manifest.permission.RECORD_AUDIO,Manifest.permission.WRITE_EXTERNAL_STORAGE)
.subscribe(newConsumer(){
@Override
publicvoidaccept(Booleangranted){
if(!granted){
ToastUtils.showShort("发送语音功能需要赋予录音和存储权限");
}
}
});
}
returntrue;
}
});
}

privatestaticfinalintMSG_AUDIO_PREPARED=0X110;
privatestaticfinalintMSG_VOICE_CHANGED=0X111;
privatestaticfinalintMSG_DIALOG_DISMISS=0X112;
privatestaticfinalintMSG_TIME_OUT=0x113;
privatestaticfinalintUPDATE_TIME=0x114;

privatebooleanmThreadFlag=false;
//录音时长
privatefloatmTime;

//获取音量大小的Runnable
privateRunnablemGetVoiceLevelRunnable=newRunnable(){
@Override
publicvoidrun(){
while(isRecording){
try{
Thread.sleep(100);
mTime+=0.1f;
mHandler.sendEmptyMessage(MSG_VOICE_CHANGED);
if(mTime>=AUDIO_RECORDER_MAX_TIME){//如果时间超过60秒，自动结束录音
while(!mThreadFlag){//记录已经结束了录音，不需要再次结束，以免出现问题
mDialogManager.dismissDialog();
mAudioManager.release();
if(audioFinishRecorderListener!=null){
//先回调，再Reset，不然回调中的时间是0
audioFinishRecorderListener.onFinish(mTime,mAudioManager.getCurrentFilePath());
mHandler.sendEmptyMessage(MSG_TIME_OUT);
}
mThreadFlag=!mThreadFlag;
}
isRecording=false;
}elseif(mTime>=AUDIO_RECORDER_COUNT_DOWN){
mHandler.sendEmptyMessage(UPDATE_TIME);
}
}catch(InterruptedExceptione){
e.printStackTrace();
}
}
}
};

privateHandlermHandler=newHandler(newHandler.Callback(){
@Override
publicbooleanhandleMessage(Messagemsg){
switch(msg.what){
caseMSG_AUDIO_PREPARED:
mDialogManager.showRecordingDialog();
isRecording=true;
newThread(mGetVoiceLevelRunnable).start();
break;
caseMSG_VOICE_CHANGED:
mDialogManager.updateVoiceLevel(mAudioManager.getVoiceLevel(7));
break;
caseMSG_DIALOG_DISMISS:
mDialogManager.dismissDialog();
break;
caseMSG_TIME_OUT:
reset();
break;
caseUPDATE_TIME:
intcountDown=(int)(AUDIO_RECORDER_MAX_TIME-mTime);
mDialogManager.updateTime(countDown);
break;
}
returntrue;
}
});

/**
*录音完成后的回调
*/
publicinterfaceAudioFinishRecorderListener{
/**
*@paramseconds时长
*@paramfilePath文件
*/
voidonFinish(floatseconds,StringfilePath);
}

privateAudioFinishRecorderListeneraudioFinishRecorderListener;

publicvoidsetAudioFinishRecorderListener(AudioFinishRecorderListenerlistener){
audioFinishRecorderListener=listener;
}

android.media.AudioManager.OnAudioFocusChangeListeneronAudioFocusChangeListener=newandroid.media.AudioManager.OnAudioFocusChangeListener(){
@Override
publicvoidonAudioFocusChange(intfocusChange){
if(focusChange==android.media.AudioManager.AUDIOFOCUS_LOSS){
audioManager.abandonAudioFocus(onAudioFocusChangeListener);
}
}
};

publicvoidmyRequestAudioFocus(){
audioManager.requestAudioFocus(onAudioFocusChangeListener,android.media.AudioManager.STREAM_MUSIC,android.media.AudioManager.AUDIOFOCUS_GAIN_TRANSIENT);
}

@Override
publicbooleanonTouchEvent(MotionEventevent){
Logger.t("AudioManager").i("x:"+event.getX()+"-Y："+event.getY());
switch(event.getAction()){
caseMotionEvent.ACTION_DOWN:
mThreadFlag=false;
isRecording=true;
changeState(STATE_RECORDING);
myRequestAudioFocus();
break;
caseMotionEvent.ACTION_MOVE:
if(isRecording){
//根据想x,y的坐标，判断是否想要取消
if(event.getY()<0&&Math.abs(event.getY())>DISTANCE_Y_CANCEL){
changeState(STATE_WANT_TO_CANCEL);
}else{
changeState(STATE_RECORDING);
}
}
break;
caseMotionEvent.ACTION_UP:
//如果longClick没触发
if(!mReady){
reset();
returnsuper.onTouchEvent(event);
}
//触发了onLongClick没准备好，但是已经prepared已经start
//所以消除文件夹
if(!isRecording||mTime<1.0f){
mDialogManager.tooShort();
mAudioManager.cancel();
mHandler.sendEmptyMessageDelayed(MSG_DIALOG_DISMISS,1000);
}elseif(mCurrentState==STATE_RECORDING){//正常录制结束
mDialogManager.dismissDialog();
mAudioManager.release();
if(audioFinishRecorderListener!=null){
audioFinishRecorderListener.onFinish(mTime,mAudioManager.getCurrentFilePath());
}
}elseif(mCurrentState==STATE_WANT_TO_CANCEL){
mDialogManager.dismissDialog();
mAudioManager.cancel();
}
reset();
audioManager.abandonAudioFocus(onAudioFocusChangeListener);
break;
}
returnsuper.onTouchEvent(event);
}

/**
*恢复状态标志位
*/
privatevoidreset(){
isRecording=false;
mTime=0;
mReady=false;
changeState(STATE_NORMAL);
}

/**
*改变状态
*/
privatevoidchangeState(intstate){
if(mCurrentState!=state){
mCurrentState=state;
switch(state){
caseSTATE_NORMAL:
setText(R.string.audio_record_button_normal);
break;
caseSTATE_RECORDING:
if(isRecording){
mDialogManager.recording();
}
setText(R.string.audio_record_button_recording);
break;
caseSTATE_WANT_TO_CANCEL:
mDialogManager.wantToCancel();
setText(R.string.audio_record_button_cancel);
break;
}
}
}
}

4、DialogStyle




true
@style/ActivityAnimTheme
@style/MenuStyle




@android:color/transparent

true

@null

true

true

@style/ActivityDialogAnimation





false




@anim/fade_in
@anim/fade_out

5、DialogLayout

6、用到的字符串


按住 说话
松开 结束
松开手指 取消发送
手指上划，取消发送
松开手指，取消发送
录音时间过短

7、使用：按钮的样式不需要写在自定义Button中，方便使用



AudioRecorderButtonaudioRecorderButton=findViewById(R.id.btn_audio_recorder);
audioRecorderButton.setAudioFinishRecorderListener(newAudioRecorderButton.AudioFinishRecorderListener(){
@Override
publicvoidonFinish(floatseconds,StringfilePath){
Logger.i(seconds+"秒："+filePath);
}
});

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持毛票票。

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Android仿微信录音功能

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