Android 仿微信实现语音聊天功能 |
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在此感谢鸿洋大神，因为我这是在慕课上看大神的视频做出来的。 代码中我已经添加了很多很多注释，不光是为了大家，也是为了自己能够更加透彻的理解该功能 支持原创，也不算原创了哈哈~ http://blog.csdn.net/lhk147852369/article/details/78658055 注意注意： Android 6.0动态获取录音权限，我并没有加上，所以你们需要在写完代码后，运行时在权限管理中指定该权限 否则会崩溃哦~~， 当然你们可以改变as中的targerversion 自定义的dialog、xml文件： ListView的Item布局： 录音管理类： public class AudioManager { private MediaRecorder mMediaRecorder; private String mDir; private String mCurrentFilePath; private static AudioManager mInstance; private boolean isPrepared; public AudioManager(String dir){ mDir = dir; }; /** * 回调准备完毕 */ 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; } /** * 准备 */ public void prepareAudio() { try { isPrepared = false; File dir = new File(mDir); if (!dir.exists()) { dir.mkdir(); } String fileName = generateFileName(); File file = new File(dir, fileName); mCurrentFilePath = file.getAbsolutePath(); mMediaRecorder = new MediaRecorder(); //设置输出文件 mMediaRecorder.setOutputFile(file.getAbsolutePath()); //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.RAW_AMR); //设置音频的格式为amr mMediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB); mMediaRecorder.prepare(); mMediaRecorder.start(); //准备结束 isPrepared = true; if (mListener != null) { mListener.wellPrepared(); } } catch (IOException e) { e.printStackTrace(); } } // 生成UUID唯一标示符 // 算法的核心思想是结合机器的网卡、当地时间、一个随即数来生成GUID // .amr音频文件 private String generateFileName() { return UUID.randomUUID().toString()+".amr"; } public int getVoiceLevel(int maxLevel) { if (isPrepared) { //获得最大的振幅getMaxAmplitude() 1-32767 try { return maxLevel * mMediaRecorder.getMaxAmplitude()/32768+1; } catch (Exception e) { } } return 1; } public void release() { mMediaRecorder.stop(); mMediaRecorder.release(); mMediaRecorder = null; } public void cancel(){ release(); if(mCurrentFilePath!=null) { File file = new File(mCurrentFilePath); file.delete(); mCurrentFilePath = null; } } public String getCurrentFilePath() { return mCurrentFilePath; } } 最重要的自定义按钮，很多逻辑都在这里： /** * 自定义按钮 实现录音等功能 * Created by Administrator on 2017/11/28. */ @SuppressLint("AppCompatCustomView") public class AudioRecorderButton extends Button implements AudioManager.AudioStateListener { //手指滑动 距离 private static final int DISTANCE_Y_CANCEL = 50; //状态 private static final int STATE_NORMAL = 1; private static final int STATE_RECORDING = 2; private static final int STATE_WANT_TO_CANCEL = 3; //当前状态 private int mCurState = STATE_NORMAL; //已经开始录音 private boolean isRecording = false; private DialogManager mDialogManager; private AudioManager mAudioManager; private float mTime; //是否触发onlongclick private boolean mReady; public AudioRecorderButton(Context context) { this(context, null); } public AudioRecorderButton(Context context, AttributeSet attrs) { super(context, attrs); mDialogManager = new DialogManager(getContext()); //偷个懒，并没有判断 是否存在， 是否可读。 String dir = Environment.getExternalStorageDirectory() + "/recorder_audios"; mAudioManager = new AudioManager(dir); mAudioManager.setOnAudioStateListener(this); //按钮长按 准备录音 包括start 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{ //时长 和 文件 void onFinish(float seconds,String filePath); } private AudioFinishRecorderListener mListener; public void setAudioFinishRecorderListener (AudioFinishRecorderListener listener){ mListener = listener; } //获取音量大小的Runnable private Runnable mGetVoiceLevelRunnable = new Runnable() { @Override public void run() { while (isRecording) { try { Thread.sleep(100); mTime += 0.1; mHandler.sendEmptyMessage(MSG_VOICE_CHANGED); } catch (InterruptedException e) { e.printStackTrace(); } } } }; private static final int MSG_AUDIO_PREPARED = 0X110; private static final int MSG_VOICE_CHANGED = 0X111; private static final int MSG_DIALOG_DIMISS = 0X112; private Handler mHandler = new Handler() { @Override public void handleMessage(Message msg) { switch (msg.what) { case MSG_AUDIO_PREPARED : //TODO 真正现实应该在audio end prepared以后 mDialogManager.showRecordingDialog(); isRecording = true; new Thread(mGetVoiceLevelRunnable).start(); break; case MSG_VOICE_CHANGED : mDialogManager.updateVoiceLevel(mAudioManager.getVoiceLevel(7)); break; case MSG_DIALOG_DIMISS : mDialogManager.dimissDialog(); 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: //TODO isRecording = true; changeState(STATE_RECORDING); break; case MotionEvent.ACTION_MOVE: if (isRecording) { //根据想x,y的坐标，判断是否想要取消 if (wantToCancel(x, y)) { changeState(STATE_WANT_TO_CANCEL); } else { changeState(STATE_RECORDING); } } break; case MotionEvent.ACTION_UP: //如果longclick 没触发 if (!mReady) { reset(); return super.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 getWidth()) { return true; } //如果上下滑出 button 加上我们自定义的距离 if (y < -DISTANCE_Y_CANCEL || y > getHeight() + DISTANCE_Y_CANCEL) { return true; } return false; } //改变状态 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_recording); setText(R.string.str_recorder_recording); if (isRecording) { mDialogManager.recording(); } break; case STATE_WANT_TO_CANCEL: setBackgroundResource(R.drawable.btn_recording); setText(R.string.str_recorder_want_cancel); mDialogManager.wantToCancel(); break; } } } }Dialog管理类： public class DialogManager { private Dialog mDialog; private ImageView mIcon; private ImageView mVoice; private TextView mLable; private Context mContext; public DialogManager(Context context){ mContext = context; } public void showRecordingDialog(){ 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); mIcon = view.findViewById(R.id.id_recorder_dialog_icon); mVoice = view.findViewById(R.id.id_recorder_dialog_voice); mLable = view.findViewById(R.id.id_recorder_dialog_label); mDialog.show(); } //正在播放时的状态 public void recording() { if (mDialog != null&&mDialog.isShowing()) { mIcon.setVisibility(View.VISIBLE); mVoice.setVisibility(View.VISIBLE); mLable.setVisibility(View.VISIBLE); mIcon.setImageResource(R.drawable.recorder); mLable.setText("手指上划，取消发送"); } } //想要取消 public void wantToCancel(){ if (mDialog != null&&mDialog.isShowing()) { mIcon.setVisibility(View.VISIBLE); mVoice.setVisibility(View.GONE); mLable.setVisibility(View.VISIBLE); mIcon.setImageResource(R.drawable.cancel); mLable.setText("松开手指，取消发送"); } } //录音时间太短 public void tooShort() { if (mDialog != null&&mDialog.isShowing()) { mIcon.setVisibility(View.VISIBLE); mVoice.setVisibility(View.GONE); mLable.setVisibility(View.VISIBLE); mIcon.setImageResource(R.drawable.voice_to_short); mLable.setText("录音时间过短"); } } //关闭dialog public void dimissDialog(){ if (mDialog != null&&mDialog.isShowing()) { mDialog.dismiss(); mDialog = null; } } /** * 通过level更新voice上的图片 * * @param level */ public void updateVoiceLevel(int level){ if (mDialog != null&&mDialog.isShowing()) { int resId = mContext.getResources().getIdentifier("v" + level, "drawable", mContext.getPackageName()); mVoice.setImageResource(resId); } } } 播放录音类： /** * Created by Administrator on 2017/11/28. * 播放录音类 */ public class MediaManager { private static MediaPlayer mMediaPlayer; private static boolean isPause; //播放录音 public static void playSound(String filePath, MediaPlayer.OnCompletionListener onCompletionListener){ if (mMediaPlayer == null) { mMediaPlayer = new MediaPlayer(); //播放错误 防止崩溃 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(AudioManager.STREAM_MUSIC); mMediaPlayer.setOnCompletionListener(onCompletionListener); mMediaPlayer.setDataSource(filePath); mMediaPlayer.prepare(); mMediaPlayer.start(); } catch (IOException e) { e.printStackTrace(); } } /** * 如果 播放时间过长,如30秒 * 用户突然来电话了,则需要暂停 */ public static void pause() { if (mMediaPlayer != null&&mMediaPlayer.isPlaying()) { mMediaPlayer.pause(); isPause = true; } } /** * 播放 */ public static void resume(){ if (mMediaPlayer != null && isPause) { mMediaPlayer.start(); isPause = false; } } /** * activity 被销毁 释放 */ public static void release(){ if (mMediaPlayer != null) { mMediaPlayer.release(); mMediaPlayer = null; } } } listview 的Adapter： /** *list的adapter * Created by Administrator on 2017/11/28. */ public class RecorderAdapter extends ArrayAdapter { //item 最小最大值 private int mMinItemWidth; private int mMaxIItemWidth; private LayoutInflater mInflater; public RecorderAdapter(@NonNull Context context, List datas) { super(context,-1, datas); mInflater = LayoutInflater.from(context); //获取屏幕宽度 WindowManager wm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE); DisplayMetrics outMetrics = new DisplayMetrics(); wm.getDefaultDisplay().getMetrics(outMetrics); //item 设定最小最大值 mMaxIItemWidth = (int) (outMetrics.widthPixels * 0.7f); mMinItemWidth = (int) (outMetrics.widthPixels * 0.15f); } @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 = convertView.findViewById(R.id.id_recorder_time); holder.length = convertView.findViewById(R.id.id_recorder_length); convertView.setTag(holder); }else { holder = (ViewHolder) convertView.getTag(); } //设置时间 matt.round 四舍五入 holder.seconds.setText(Math.round(getItem(position).time)+"\""); //设置背景的宽度 ViewGroup.LayoutParams lp = holder.length.getLayoutParams(); //getItem(position).time lp.width = (int) (mMinItemWidth + (mMaxIItemWidth / 60f*getItem(position).time)); return convertView; } private class ViewHolder{ TextView seconds; View length; } }在string.xml中 按住说话 松开结束 松开手指，取消发送 在style.xml中 @android:color/transparent @null true true true好了以上就是所有的代码了。 不懂得可以问我哦，或者自己查查百度吧。 我的注释已经很多了，理理逻辑，应该很好懂的。 源码地址：源码 图片资源：资源图片 |
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