场景
在Android中怎样实现类似发送语音消息功能前的按键录音并将其显示在RecyclerView上并且能点击录音文件进行播放。
注：
博客：
https://blog.csdn.net/badao_liumang_qizhi
关注公众号
霸道的程序猿
获取编程相关电子书、教程推送与免费下载。
实现
实现页面布局
新建一个项目，实现页面布局如下
布局代码：
<?xml version="1.0" encoding="utf-8"?> <androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" xmlns:app="http://schemas.android.com/apk/res-auto"> <androidx.recyclerview.widget.RecyclerView android:id="@+id/recycler" android:layout_width="match_parent" android:layout_height="wrap_content" app:layout_constraintBottom_toTopOf="@+id/layout_bottom" app:layout_constraintTop_toTopOf="parent" /> <RelativeLayout android:layout_width="match_parent" android:layout_height="101dp" android:id="@+id/layout_bottom" android:background="#F7F7F7" app:layout_constraintBottom_toBottomOf="parent" app:layout_constraintStart_toStartOf="parent"> <ImageView android:layout_width="66dp" android:layout_height="66dp" android:id="@+id/img_voice" android:background="@mipmap/badao" android:layout_centerInParent="true" /> </RelativeLayout> </androidx.constraintlayout.widget.ConstraintLayout>
并且在MainActivity中获取这些控件，并且设置下面ImageView的按下和松开的事件
public class MainActivity extends AppCompatActivity { private ImageView audioImageView; private RecyclerView mRecyclerView; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); audioImageView = findViewById(R.id.img_voice); audioImageView.setOnTouchListener(new View.OnTouchListener() { @Override public boolean onTouch(View view, MotionEvent motionEvent) { if(motionEvent.getAction() == MotionEvent.ACTION_DOWN) { Toast.makeText(MainActivity.this,"录音开始",Toast.LENGTH_SHORT).show(); return true; }else if(motionEvent.getAction() == MotionEvent.ACTION_UP) { Toast.makeText(MainActivity.this,"录音结束",Toast.LENGTH_SHORT).show(); return true; } return false; } }); }
赋予录音权限
打开AndroidManifest.xml
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/> <uses-permission android:name="android.permission.RECORD_AUDIO"/>
封装录音相关工具类
在包下新建audioHelper包，包下新建如下几个接口和类
AudioRecordManager
package com.badao.audiodemo.audioHelper; import android.annotation.TargetApi; import android.content.Context; import android.content.res.Resources; import android.media.AudioManager; import android.media.MediaRecorder; import android.net.Uri; import android.os.Build; import android.os.Handler; import android.os.Message; import android.os.SystemClock; import android.telephony.PhoneStateListener; import android.telephony.TelephonyManager; import android.text.TextUtils; import android.util.Log; import java.io.File; public class AudioRecordManager implements Handler.Callback { private static final String TAG = "LQR_AudioRecordManager"; private int RECORD_INTERVAL; private String SAVE_PATH; private IAudioState mCurAudioState; private Context mContext; private Handler mHandler; private AudioManager mAudioManager; private MediaRecorder mMediaRecorder; private Uri mAudioPath; private long smStartRecTime; private AudioManager.OnAudioFocusChangeListener mAfChangeListener; IAudioState idleState; IAudioState recordState; IAudioState sendingState; IAudioState cancelState; IAudioState timerState; private IAudioRecordListener mAudioRecordListener; public static AudioRecordManager mInstance; public static AudioRecordManager getInstance(Context context) { if (mInstance == null) { Class var1 = AudioRecordManager.class; synchronized(AudioRecordManager.class) { if (mInstance == null) { mInstance = new AudioRecordManager(context); } } } return mInstance; } @TargetApi(21) private AudioRecordManager(Context context) { this.mContext = context; this.mHandler = new Handler(this); this.RECORD_INTERVAL = 60; this.idleState = new AudioRecordManager.IdleState(); this.recordState = new AudioRecordManager.RecordState(); this.sendingState = new AudioRecordManager.SendingState(); this.cancelState = new AudioRecordManager.CancelState(); this.timerState = new AudioRecordManager.TimerState(); if (Build.VERSION.SDK_INT < 21) { try { TelephonyManager e = (TelephonyManager)this.mContext.getSystemService("phone"); e.listen(new PhoneStateListener() { public void onCallStateChanged(int state, String incomingNumber) { switch(state) { case 1: AudioRecordManager.this.sendEmptyMessage(6); case 0: case 2: default: super.onCallStateChanged(state, incomingNumber); } } }, 32); } catch (SecurityException var3) { var3.printStackTrace(); } } this.mCurAudioState = this.idleState; this.idleState.enter(); } public final boolean handleMessage(Message msg) { Log.i("LQR_AudioRecordManager", "handleMessage " + msg.what); AudioStateMessage m; switch(msg.what) { case 2: this.sendEmptyMessage(2); break; case 7: m = AudioStateMessage.obtain(); m.what = msg.what; m.obj = msg.obj; this.sendMessage(m); break; case 8: m = AudioStateMessage.obtain(); m.what = 7; m.obj = msg.obj; this.sendMessage(m); } return false; } private void initView() { if (this.mAudioRecordListener != null) { this.mAudioRecordListener.initTipView(); } } private void setTimeoutView(int counter) { if (this.mAudioRecordListener != null) { this.mAudioRecordListener.setTimeoutTipView(counter); } } private void setRecordingView() { if (this.mAudioRecordListener != null) { this.mAudioRecordListener.setRecordingTipView(); } } private void setCancelView() { if (this.mAudioRecordListener != null) { this.mAudioRecordListener.setCancelTipView(); } } private void destroyView() { Log.d("LQR_AudioRecordManager", "destroyTipView"); this.mHandler.removeMessages(7); this.mHandler.removeMessages(8); this.mHandler.removeMessages(2); if (this.mAudioRecordListener != null) { this.mAudioRecordListener.destroyTipView(); } } public void setMaxVoiceDuration(int maxVoiceDuration) { this.RECORD_INTERVAL = maxVoiceDuration; } public void setAudioSavePath(String path) { if (TextUtils.isEmpty(path)) { this.SAVE_PATH = this.mContext.getCacheDir().getAbsolutePath(); } else { this.SAVE_PATH = path; } } public int getMaxVoiceDuration() { return this.RECORD_INTERVAL; } public void startRecord() { this.mAudioManager = (AudioManager)this.mContext.getSystemService("audio"); if (this.mAfChangeListener != null) { this.mAudioManager.abandonAudioFocus(this.mAfChangeListener); this.mAfChangeListener = null; } this.mAfChangeListener = new AudioManager.OnAudioFocusChangeListener() { public void onAudioFocusChange(int focusChange) { Log.d("LQR_AudioRecordManager", "OnAudioFocusChangeListener " + focusChange); if (focusChange == -1) { AudioRecordManager.this.mAudioManager.abandonAudioFocus(AudioRecordManager.this.mAfChangeListener); AudioRecordManager.this.mAfChangeListener = null; AudioRecordManager.this.sendEmptyMessage(6); } } }; this.sendEmptyMessage(1); if (this.mAudioRecordListener != null) { this.mAudioRecordListener.onStartRecord(); } } public void willCancelRecord() { this.sendEmptyMessage(3); } public void continueRecord() { this.sendEmptyMessage(4); } public void stopRecord() { this.sendEmptyMessage(5); } public void destroyRecord() { AudioStateMessage msg = new AudioStateMessage(); msg.obj = true; msg.what = 5; this.sendMessage(msg); } void sendMessage(AudioStateMessage message) { this.mCurAudioState.handleMessage(message); } void sendEmptyMessage(int event) { AudioStateMessage message = AudioStateMessage.obtain(); message.what = event; this.mCurAudioState.handleMessage(message); } private void startRec() { Log.d("LQR_AudioRecordManager", "startRec"); try { this.muteAudioFocus(this.mAudioManager, true); this.mAudioManager.setMode(0); this.mMediaRecorder = new MediaRecorder(); try { int bps = 7950; this.mMediaRecorder.setAudioSamplingRate(8000); this.mMediaRecorder.setAudioEncodingBitRate(bps); } catch (Resources.NotFoundException var2) { var2.printStackTrace(); } this.mMediaRecorder.setAudioChannels(1); this.mMediaRecorder.setAudioSource(1); this.mMediaRecorder.setOutputFormat(3); this.mMediaRecorder.setAudioEncoder(1); this.mAudioPath = Uri.fromFile(new File(this.SAVE_PATH, System.currentTimeMillis() + "temp.voice")); this.mMediaRecorder.setOutputFile(this.mAudioPath.getPath()); this.mMediaRecorder.prepare(); this.mMediaRecorder.start(); Message e1 = Message.obtain(); e1.what = 7; e1.obj = 10; this.mHandler.sendMessageDelayed(e1, (long)(this.RECORD_INTERVAL * 1000 - 10000)); } catch (Exception var3) { var3.printStackTrace(); } } private boolean checkAudioTimeLength() { long delta = SystemClock.elapsedRealtime() - this.smStartRecTime; return delta < 1000L; } private void stopRec() { Log.d("LQR_AudioRecordManager", "stopRec"); try { this.muteAudioFocus(this.mAudioManager, false); if (this.mMediaRecorder != null) { this.mMediaRecorder.stop(); this.mMediaRecorder.release(); this.mMediaRecorder = null; } } catch (Exception var2) { var2.printStackTrace(); } } private void deleteAudioFile() { Log.d("LQR_AudioRecordManager", "deleteAudioFile"); if (this.mAudioPath != null) { File file = new File(this.mAudioPath.getPath()); if (file.exists()) { file.delete(); } } } private void finishRecord() { Log.d("LQR_AudioRecordManager", "finishRecord path = " + this.mAudioPath); if (this.mAudioRecordListener != null) { int duration = (int)(SystemClock.elapsedRealtime() - this.smStartRecTime) / 1000; this.mAudioRecordListener.onFinish(this.mAudioPath, duration); } } private void audioDBChanged() { if (this.mMediaRecorder != null) { int db = this.mMediaRecorder.getMaxAmplitude() / 600; if (this.mAudioRecordListener != null) { this.mAudioRecordListener.onAudioDBChanged(db); } } } private void muteAudioFocus(AudioManager audioManager, boolean bMute) { if (Build.VERSION.SDK_INT < 8) { Log.d("LQR_AudioRecordManager", "muteAudioFocus Android 2.1 and below can not stop music"); } else if (bMute) { audioManager.requestAudioFocus(this.mAfChangeListener, 3, 2); } else { audioManager.abandonAudioFocus(this.mAfChangeListener); this.mAfChangeListener = null; } } public IAudioRecordListener getAudioRecordListener() { return this.mAudioRecordListener; } public void setAudioRecordListener(IAudioRecordListener audioRecordListener) { this.mAudioRecordListener = audioRecordListener; } class IdleState extends IAudioState { public IdleState() { Log.d("LQR_AudioRecordManager", "IdleState"); } void enter() { super.enter(); if (AudioRecordManager.this.mHandler != null) { AudioRecordManager.this.mHandler.removeMessages(7); AudioRecordManager.this.mHandler.removeMessages(8); AudioRecordManager.this.mHandler.removeMessages(2); } } void handleMessage(AudioStateMessage msg) { Log.d("LQR_AudioRecordManager", "IdleState handleMessage : " + msg.what); switch(msg.what) { case 1: AudioRecordManager.this.initView(); AudioRecordManager.this.setRecordingView(); AudioRecordManager.this.startRec(); AudioRecordManager.this.smStartRecTime = SystemClock.elapsedRealtime(); AudioRecordManager.this.mCurAudioState = AudioRecordManager.this.recordState; AudioRecordManager.this.sendEmptyMessage(2); default: } } } class RecordState extends IAudioState { RecordState() { } void handleMessage(AudioStateMessage msg) { Log.d("LQR_AudioRecordManager", this.getClass().getSimpleName() + " handleMessage : " + msg.what); switch(msg.what) { case 2: AudioRecordManager.this.audioDBChanged(); AudioRecordManager.this.mHandler.sendEmptyMessageDelayed(2, 150L); break; case 3: AudioRecordManager.this.setCancelView(); AudioRecordManager.this.mCurAudioState = AudioRecordManager.this.cancelState; case 4: default: break; case 5: final boolean checked = AudioRecordManager.this.checkAudioTimeLength(); boolean activityFinished = false; if (msg.obj != null) { activityFinished = (Boolean)msg.obj; } if (checked && !activityFinished) { if (AudioRecordManager.this.mAudioRecordListener != null) { AudioRecordManager.this.mAudioRecordListener.setAudioShortTipView(); } AudioRecordManager.this.mHandler.removeMessages(2); } if (!activityFinished && AudioRecordManager.this.mHandler != null) { AudioRecordManager.this.mHandler.postDelayed(new Runnable() { public void run() { AudioStateMessage message = AudioStateMessage.obtain(); message.what = 9; message.obj = !checked; AudioRecordManager.this.sendMessage(message); } }, 500L); AudioRecordManager.this.mCurAudioState = AudioRecordManager.this.sendingState; } else { AudioRecordManager.this.stopRec(); if (!checked && activityFinished) { AudioRecordManager.this.finishRecord(); } AudioRecordManager.this.destroyView(); AudioRecordManager.this.mCurAudioState = AudioRecordManager.this.idleState; } break; case 6: AudioRecordManager.this.stopRec(); AudioRecordManager.this.destroyView(); AudioRecordManager.this.deleteAudioFile(); AudioRecordManager.this.mCurAudioState = AudioRecordManager.this.idleState; AudioRecordManager.this.idleState.enter(); break; case 7: int counter = (Integer)msg.obj; AudioRecordManager.this.setTimeoutView(counter); AudioRecordManager.this.mCurAudioState = AudioRecordManager.this.timerState; if (counter > 0) { Message message = Message.obtain(); message.what = 8; message.obj = counter - 1; AudioRecordManager.this.mHandler.sendMessageDelayed(message, 1000L); } else { AudioRecordManager.this.mHandler.postDelayed(new Runnable() { public void run() { AudioRecordManager.this.stopRec(); AudioRecordManager.this.finishRecord(); AudioRecordManager.this.destroyView(); } }, 500L); AudioRecordManager.this.mCurAudioState = AudioRecordManager.this.idleState; } } } } class SendingState extends IAudioState { SendingState() { } void handleMessage(AudioStateMessage message) { Log.d("LQR_AudioRecordManager", "SendingState handleMessage " + message.what); switch(message.what) { case 9: AudioRecordManager.this.stopRec(); if ((Boolean)message.obj) { AudioRecordManager.this.finishRecord(); } AudioRecordManager.this.destroyView(); AudioRecordManager.this.mCurAudioState = AudioRecordManager.this.idleState; default: } } } class CancelState extends IAudioState { CancelState() { } void handleMessage(AudioStateMessage msg) { Log.d("LQR_AudioRecordManager", this.getClass().getSimpleName() + " handleMessage : " + msg.what); switch(msg.what) { case 1: case 2: case 3: default: break; case 4: AudioRecordManager.this.setRecordingView(); AudioRecordManager.this.mCurAudioState = AudioRecordManager.this.recordState; AudioRecordManager.this.sendEmptyMessage(2); break; case 5: case 6: AudioRecordManager.this.stopRec(); AudioRecordManager.this.destroyView(); AudioRecordManager.this.deleteAudioFile(); AudioRecordManager.this.mCurAudioState = AudioRecordManager.this.idleState; AudioRecordManager.this.idleState.enter(); break; case 7: int counter = (Integer)msg.obj; if (counter > 0) { Message message = Message.obtain(); message.what = 8; message.obj = counter - 1; AudioRecordManager.this.mHandler.sendMessageDelayed(message, 1000L); } else { AudioRecordManager.this.mHandler.postDelayed(new Runnable() { public void run() { AudioRecordManager.this.stopRec(); AudioRecordManager.this.finishRecord(); AudioRecordManager.this.destroyView(); } }, 500L); AudioRecordManager.this.mCurAudioState = AudioRecordManager.this.idleState; AudioRecordManager.this.idleState.enter(); } } } } class TimerState extends IAudioState { TimerState() { } void handleMessage(AudioStateMessage msg) { Log.d("LQR_AudioRecordManager", this.getClass().getSimpleName() + " handleMessage : " + msg.what); switch(msg.what) { case 3: AudioRecordManager.this.setCancelView(); AudioRecordManager.this.mCurAudioState = AudioRecordManager.this.cancelState; case 4: default: break; case 5: AudioRecordManager.this.mHandler.postDelayed(new Runnable() { public void run() { AudioRecordManager.this.stopRec(); AudioRecordManager.this.finishRecord(); AudioRecordManager.this.destroyView(); } }, 500L); AudioRecordManager.this.mCurAudioState = AudioRecordManager.this.idleState; AudioRecordManager.this.idleState.enter(); break; case 6: AudioRecordManager.this.stopRec(); AudioRecordManager.this.destroyView(); AudioRecordManager.this.deleteAudioFile(); AudioRecordManager.this.mCurAudioState = AudioRecordManager.this.idleState; AudioRecordManager.this.idleState.enter(); break; case 7: int counter = (Integer)msg.obj; if (counter > 0) { Message message = Message.obtain(); message.what = 8; message.obj = counter - 1; AudioRecordManager.this.mHandler.sendMessageDelayed(message, 1000L); AudioRecordManager.this.setTimeoutView(counter); } else { AudioRecordManager.this.mHandler.postDelayed(new Runnable() { public void run() { AudioRecordManager.this.stopRec(); AudioRecordManager.this.finishRecord(); AudioRecordManager.this.destroyView(); } }, 500L); AudioRecordManager.this.mCurAudioState = AudioRecordManager.this.idleState; } } } } }
AudioPlayManager
package com.badao.audiodemo.audioHelper; import android.annotation.TargetApi; import android.content.Context; import android.hardware.Sensor; import android.hardware.SensorEvent; import android.hardware.SensorEventListener; import android.hardware.SensorManager; import android.media.AudioManager; import android.media.MediaPlayer; import android.media.AudioManager.OnAudioFocusChangeListener; import android.media.MediaPlayer.OnCompletionListener; import android.media.MediaPlayer.OnErrorListener; import android.media.MediaPlayer.OnPreparedListener; import android.media.MediaPlayer.OnSeekCompleteListener; import android.net.Uri; import android.os.PowerManager; import android.os.Build.VERSION; import android.os.PowerManager.WakeLock; import android.util.Log; import java.io.IOException; public class AudioPlayManager implements SensorEventListener { private static final String TAG = "LQR_AudioPlayManager"; private MediaPlayer _mediaPlayer; private IAudioPlayListener _playListener; private Uri _playingUri; private Sensor _sensor; private SensorManager _sensorManager; private AudioManager _audioManager; private PowerManager _powerManager; private WakeLock _wakeLock; private OnAudioFocusChangeListener afChangeListener; private Context context; public AudioPlayManager() { } public static AudioPlayManager getInstance() { return AudioPlayManager.SingletonHolder.sInstance; } @TargetApi(11) public void onSensorChanged(SensorEvent event) { float range = event.values[0]; if (this._sensor != null && this._mediaPlayer != null) { if (this._mediaPlayer.isPlaying()) { if ((double)range > 0.0D) { if (this._audioManager.getMode() == 0) { return; } this._audioManager.setMode(0); this._audioManager.setSpeakerphoneOn(true); final int positions = this._mediaPlayer.getCurrentPosition(); try { this._mediaPlayer.reset(); this._mediaPlayer.setAudioStreamType(3); this._mediaPlayer.setVolume(1.0F, 1.0F); this._mediaPlayer.setDataSource(this.context, this._playingUri); this._mediaPlayer.setOnPreparedListener(new OnPreparedListener() { public void onPrepared(MediaPlayer mp) { mp.seekTo(positions); } }); this._mediaPlayer.setOnSeekCompleteListener(new OnSeekCompleteListener() { public void onSeekComplete(MediaPlayer mp) { mp.start(); } }); this._mediaPlayer.prepareAsync(); } catch (IOException var5) { var5.printStackTrace(); } this.setScreenOn(); } else { this.setScreenOff(); if (VERSION.SDK_INT >= 11) { if (this._audioManager.getMode() == 3) { return; } this._audioManager.setMode(3); } else { if (this._audioManager.getMode() == 2) { return; } this._audioManager.setMode(2); } this._audioManager.setSpeakerphoneOn(false); this.replay(); } } else if ((double)range > 0.0D) { if (this._audioManager.getMode() == 0) { return; } this._audioManager.setMode(0); this._audioManager.setSpeakerphoneOn(true); this.setScreenOn(); } } } @TargetApi(21) private void setScreenOff() { if (this._wakeLock == null) { if (VERSION.SDK_INT >= 21) { this._wakeLock = this._powerManager.newWakeLock(32, "AudioPlayManager"); } else { Log.e("LQR_AudioPlayManager", "Does not support on level " + VERSION.SDK_INT); } } if (this._wakeLock != null) { this._wakeLock.acquire(); } } private void setScreenOn() { if (this._wakeLock != null) { this._wakeLock.setReferenceCounted(false); this._wakeLock.release(); this._wakeLock = null; } } public void onAccuracyChanged(Sensor sensor, int accuracy) { } private void replay() { try { this._mediaPlayer.reset(); this._mediaPlayer.setAudioStreamType(0); this._mediaPlayer.setVolume(1.0F, 1.0F); this._mediaPlayer.setDataSource(this.context, this._playingUri); this._mediaPlayer.setOnPreparedListener(new OnPreparedListener() { public void onPrepared(MediaPlayer mp) { mp.start(); } }); this._mediaPlayer.prepareAsync(); } catch (IOException var2) { var2.printStackTrace(); } } public void startPlay(Context context, Uri audioUri, IAudioPlayListener playListener) { if (context != null && audioUri != null) { this.context = context; if (this._playListener != null && this._playingUri != null) { this._playListener.onStop(this._playingUri); } this.resetMediaPlayer(); this.afChangeListener = new OnAudioFocusChangeListener() { public void onAudioFocusChange(int focusChange) { Log.d("LQR_AudioPlayManager", "OnAudioFocusChangeListener " + focusChange); if (AudioPlayManager.this._audioManager != null && focusChange == -1) { AudioPlayManager.this._audioManager.abandonAudioFocus(AudioPlayManager.this.afChangeListener); AudioPlayManager.this.afChangeListener = null; AudioPlayManager.this.resetMediaPlayer(); } } }; try { this._powerManager = (PowerManager)context.getSystemService("power"); this._audioManager = (AudioManager)context.getSystemService("audio"); if (!this._audioManager.isWiredHeadsetOn()) { this._sensorManager = (SensorManager)context.getSystemService("sensor"); this._sensor = this._sensorManager.getDefaultSensor(8); this._sensorManager.registerListener(this, this._sensor, 3); } this.muteAudioFocus(this._audioManager, true); this._playListener = playListener; this._playingUri = audioUri; this._mediaPlayer = new MediaPlayer(); this._mediaPlayer.setOnCompletionListener(new OnCompletionListener() { public void onCompletion(MediaPlayer mp) { if (AudioPlayManager.this._playListener != null) { AudioPlayManager.this._playListener.onComplete(AudioPlayManager.this._playingUri); AudioPlayManager.this._playListener = null; AudioPlayManager.this.context = null; } AudioPlayManager.this.reset(); } }); this._mediaPlayer.setOnErrorListener(new OnErrorListener() { public boolean onError(MediaPlayer mp, int what, int extra) { AudioPlayManager.this.reset(); return true; } }); this._mediaPlayer.setDataSource(context, audioUri); this._mediaPlayer.setAudioStreamType(3); this._mediaPlayer.prepare(); this._mediaPlayer.start(); if (this._playListener != null) { this._playListener.onStart(this._playingUri); } } catch (Exception var5) { var5.printStackTrace(); if (this._playListener != null) { this._playListener.onStop(audioUri); this._playListener = null; } this.reset(); } } else { Log.e("LQR_AudioPlayManager", "startPlay context or audioUri is null."); } } public void setPlayListener(IAudioPlayListener listener) { this._playListener = listener; } public void stopPlay() { if (this._playListener != null && this._playingUri != null) { this._playListener.onStop(this._playingUri); } this.reset(); } private void reset() { this.resetMediaPlayer(); this.resetAudioPlayManager(); } private void resetAudioPlayManager() { if (this._audioManager != null) { this.muteAudioFocus(this._audioManager, false); } if (this._sensorManager != null) { this._sensorManager.unregisterListener(this); } this._sensorManager = null; this._sensor = null; this._powerManager = null; this._audioManager = null; this._wakeLock = null; this._playListener = null; this._playingUri = null; } private void resetMediaPlayer() { if (this._mediaPlayer != null) { try { this._mediaPlayer.stop(); this._mediaPlayer.reset(); this._mediaPlayer.release(); this._mediaPlayer = null; } catch (IllegalStateException var2) { } } } public Uri getPlayingUri() { return this._playingUri; } @TargetApi(8) private void muteAudioFocus(AudioManager audioManager, boolean bMute) { if (VERSION.SDK_INT < 8) { Log.d("LQR_AudioPlayManager", "muteAudioFocus Android 2.1 and below can not stop music"); } else if (bMute) { audioManager.requestAudioFocus(this.afChangeListener, 3, 2); } else { audioManager.abandonAudioFocus(this.afChangeListener); this.afChangeListener = null; } } static class SingletonHolder { static AudioPlayManager sInstance = new AudioPlayManager(); SingletonHolder() { } } }
AudioStateMessage
package com.badao.audiodemo.audioHelper; public class AudioStateMessage { public int what; public Object obj; public AudioStateMessage() { } public static AudioStateMessage obtain() { return new AudioStateMessage(); } }
IAudioPlayListener
package com.badao.audiodemo.audioHelper; import android.net.Uri; public interface IAudioPlayListener { void onStart(Uri var1); void onStop(Uri var1); void onComplete(Uri var1); }
IAudioRecordListener
package com.badao.audiodemo.audioHelper; import android.net.Uri; public interface IAudioRecordListener { void initTipView(); void setTimeoutTipView(int var1); void setRecordingTipView(); void setAudioShortTipView(); void setCancelTipView(); void destroyTipView(); void onStartRecord(); void onFinish(Uri var1, int var2); void onAudioDBChanged(int var1); }
IAudioState
package com.badao.audiodemo.audioHelper; public abstract class IAudioState { public IAudioState() { } void enter() { } abstract void handleMessage(AudioStateMessage var1); }
录音功能实现
打开MainActivity，声明audioRecordManager
private AudioRecordManager audioRecordManager;
然后在onCreate中对其进行初始化
protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); audioRecordManager = AudioRecordManager.getInstance(MainActivity.this); File file = new File(MainActivity.this.getExternalFilesDir("voice").getAbsolutePath()); if (!file.exists()) { file.mkdirs(); } //设置录音文件保存路径 audioRecordManager.setAudioSavePath(file.getAbsolutePath()); //设置监听器 audioRecordManager.setAudioRecordListener(recordListener);
初始化之后设置其录音文件的的保存路径和监听器
所以需要先声明并初始化一个监听器
private final IAudioRecordListener recordListener = new IAudioRecordListener() { @Override public void initTipView() { } @Override public void setTimeoutTipView(int i) { } @Override public void setRecordingTipView() { } @Override public void setAudioShortTipView() { } @Override public void setCancelTipView() { } @Override public void destroyTipView() { } @Override public void onStartRecord() { } @Override public void onFinish(Uri uri, int i) { File file = new File(uri.getPath()); //获取文件时长 int voiceDuration = 0; try { meidaPlayer.setDataSource(uri.getPath()); meidaPlayer.prepare(); int time = meidaPlayer.getDuration();//获得了时长（以毫秒为单位） voiceDuration = time / 1000; if (voiceDuration < 1) { voiceDuration = 1; } } catch (IOException e) { e.printStackTrace(); } finally { meidaPlayer.reset(); } ChatBean.ChatItem chatItem = new ChatBean.ChatItem(); chatItem.setId((int) System.currentTimeMillis()); chatItem.setSendTime(new Date().toString()); chatItem.setContent(file.getAbsolutePath()); //存储语音文件时长 chatItem.setVoiceDuration(voiceDuration); chatItemList.add(chatItem); chatAdapter.setmEntityList(chatItemList); } @Override public void onAudioDBChanged(int i) { } };
在监听器中重写的onFinish方法就是录音结束后的回调方法，Uri就是录音文件的路径
在此方法中获取录音的时长以及设置一些其他参数，然后将其通过Adapter给RecyclerView进行赋值。
关于Android中使用Adapter(适配器)给RecycleView设置数据源：
参考如下：
https://blog.csdn.net/BADAO_LIUMANG_QIZHI/article/details/110926089
然后在MainActivity中的imageView的Touch事件中
audioImageView.setOnTouchListener(new View.OnTouchListener() { @Override public boolean onTouch(View view, MotionEvent motionEvent) { if(motionEvent.getAction() == MotionEvent.ACTION_DOWN) { Toast.makeText(MainActivity.this,"录音开始",Toast.LENGTH_SHORT).show(); audioRecordManager.startRecord(); return true; }else if(motionEvent.getAction() == MotionEvent.ACTION_UP) { Toast.makeText(MainActivity.this,"录音结束",Toast.LENGTH_SHORT).show(); audioRecordManager.stopRecord(); return true; } return false; } });
实现开始录音与结束录音。
录音播放功能
参照上面录音结束后使用adapter给recyclerView设置数据源的方式，在ChatAdapter中重写的
onBindViewHolder中
@Override public void onBindViewHolder(@NonNull ChatViewHolder holder, int position) { holder.mText.setText(mEntityList.get(position).getContent().toString()); //设置每一项的点击事件 holder.itemView.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { File file = new File(mEntityList.get(position).getContent()); //播放音频文件 audioPlayManager.startPlay(App.context, Uri.fromFile(file), new IAudioPlayListener() { @Override public void onStart(Uri uri1) { } @Override public void onStop(Uri uri1) { } @Override public void onComplete(Uri uri1) { } }); } }); }
设置每一项的点击事件并播放音频文件
在播放的方法startPlay中第一个参数为context，为了获取Context，参照如下
Android中怎样在工具类中获取Context对象：
https://blog.csdn.net/BADAO_LIUMANG_QIZHI/article/details/110817765
示例代码下载
https://download.csdn.net/download/BADAO_LIUMANG_QIZHI/13609812