Android如何实现仿微信语音消息的录制和播放功能
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小编给大家分享一下Android如何实现仿微信语音消息的录制和播放功能，希望大家阅读完这篇文章之后都有所收获，下面让我们一起去探讨吧！
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。
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）。
AudioRecordButton状态：
STATE_NORMAL:普通状态
STATE_RECORDING:录音中
STATE_CANCEL：取消录音
DialogManager状态:
RECORDING：录音中
WANT_TO_CANCEL：取消录音
TOO_SHORT：录音时间太短
AudioManager：
prepare():准备状态
cancel()：取消录音
release():正常结束录音
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;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：
showRecordingDialog()：用来设置Diaog布局，拿到控件的引用，显示Dialog。
recording()：更改Dialog状态为录音中状态。
wantToCancel()：更改Dialog状态为想要取消状态。
tooShort()：更改Dialog状态为录音时长过短状态。
dismissDialog()：移除Dialog。
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;public class DialogManager { private Dialog mDialog; private ImageView mIcon; private ImageView mVoice; private TextView mLabel; private Context mContext; public DialogManager(Context context) { mContext = context; } 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; } } 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;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; } public interface AudioStateListener{ void wellPrepared(); } public AudioStateListener mListener; public void setOnAudioStateListener(AudioStateListener listener){ mListener = listener; } public static AudioManager getInstance(String dir){ if (mInstance == null){ synchronized (AudioManager.class){ if(mInstance == null){ mInstance = new AudioManager(dir); } } } return mInstance; } 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(); } } private String generateFileName() { return UUID.randomUUID().toString()+".amr"; } 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; } public void release(){ if(mMediaRecorder != null){ mMediaRecorder.stop(); mMediaRecorder.release(); mMediaRecorder = null; } } 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;@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; } }); } 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 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); } private void complete() { mDialogManager.dismissDialog(); mAudioManager.release(); if(mAudioFinishRecorderListener != null && !isComplete){ mAudioFinishRecorderListener.onFinish(mTime,mAudioManager.getCurrentFilePath()); } } private void reset() { isRecording = false; mReady = false; mTime = 0; isComplete = true; changeState(STATE_NORMAL); } 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; } 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
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; }}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(); }}看完了这篇文章，相信你对“Android如何实现仿微信语音消息的录制和播放功能”有了一定的了解，如果想了解更多相关知识，欢迎关注编程网行业资讯频道，感谢各位的阅读！
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