Android仿微信语音聊天界面设计

有段时间没有看视频了，昨天晚上抽了点空时间，又看了下鸿洋大神的视频教程，又抽时间写了个学习记录。代码和老师讲的基本一样，网上也有很多相同的博客。我只是在AndroidStudio环境下写的。

—-主界面代码——

 public class MainActivity extends Activity {
 private ListView mListView;
 private ArrayAdapter<Recorder> mAdapter;
 private List<Recorder> mDatas = new ArrayList<Recorder>();
 private AudioRecorderButton mAudioRecorderButton;
 private View animView;
 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);
  mListView = (ListView) findViewById(R.id.id_listview);
  mAudioRecorderButton = (AudioRecorderButton) findViewById(R.id.id_recorder_button);
  mAudioRecorderButton.setFinishRecorderCallBack(new AudioRecorderButton.AudioFinishRecorderCallBack() {
   public void onFinish(float seconds, String filePath) {
    Recorder recorder = new Recorder(seconds, filePath);
    mDatas.add(recorder);
    //更新数据
    mAdapter.notifyDataSetChanged();
    //设置位置
    mListView.setSelection(mDatas.size() - 1);
   }
  });
  mAdapter = new RecoderAdapter(this, mDatas);
  mListView.setAdapter(mAdapter);
  //listView的item点击事件
  mListView.setOnItemClickListener(new OnItemClickListener() {
   public void onItemClick(AdapterView<?> arg0, View view, int position, long id) {
    // 声音播放动画
    if (animView != null) {
     animView.setBackgroundResource(R.drawable.adj);
     animView = null;
    }
    animView = view.findViewById(R.id.id_recoder_anim);
    animView.setBackgroundResource(R.drawable.play_anim);
    AnimationDrawable animation = (AnimationDrawable) animView.getBackground();
    animation.start();
    // 播放录音
    MediaPlayerManager.playSound(mDatas.get(position).filePath, new MediaPlayer.OnCompletionListener() {
     public void onCompletion(MediaPlayer mp) {
      //播放完成后修改图片
      animView.setBackgroundResource(R.drawable.adj);
     }
    });
   }
  });
 }
 @Override
 protected void onPause() {
  super.onPause();
  MediaPlayerManager.pause();
 }
 @Override
 protected void onResume() {
  super.onResume();
  MediaPlayerManager.resume();
 }
 @Override
 protected void onDestroy() {
  super.onDestroy();
  MediaPlayerManager.release();
 }

—自定义Button——-

public class AudioRecorderButton extends Button {
 // 按钮正常状态（默认状态）
 private static final int STATE_NORMAL = 1;
 //正在录音状态
 private static final int STATE_RECORDING = 2;
 //录音取消状态
 private static final int STATE_CANCEL = 3;
 //记录当前状态
 private int mCurrentState = STATE_NORMAL;
 //是否开始录音标志
 private boolean isRecording = false;
 //判断在Button上滑动距离，以判断 是否取消
 private static final int DISTANCE_Y_CANCEL = 50;
 //对话框管理工具类
 private DialogManager mDialogManager;
 //录音管理工具类
 private AudioManager mAudioManager;
 //记录录音时间
 private float mTime;
 // 是否触发longClick
 private boolean mReady;
 //录音准备
 private static final int MSG_AUDIO_PREPARED = 0x110;
 //音量发生改变
 private static final int MSG_VOICE_CHANGED = 0x111;
 //取消提示对话框
 private static final int MSG_DIALOG_DIMISS = 0x112;
 
 private Runnable mGetVoiceLevelRunnable = new Runnable() {
  public void run() {
   while (isRecording) {//判断正在录音
    try {
     Thread.sleep(100);
     mTime += 0.1f;//录音时间计算
     mHandler.sendEmptyMessage(MSG_VOICE_CHANGED);//每0.1秒发送消息
    } catch (InterruptedException e) {
     e.printStackTrace();
    }
   }
  }
 };
 private Handler mHandler = new Handler() {
  @Override
  public void handleMessage(Message msg) {
   switch (msg.what) {
    case MSG_AUDIO_PREPARED:
     //显示对话框
     mDialogManager.showRecordingDialog();
     isRecording = true;
     // 开启一个线程计算录音时间
     new Thread(mGetVoiceLevelRunnable).start();
     break;
    case MSG_VOICE_CHANGED:
     //更新声音
     mDialogManager.updateVoiceLevel(mAudioManager.getVoiceLevel(7));
     break;
    case MSG_DIALOG_DIMISS:
     //取消对话框
     mDialogManager.dimissDialog();
     break;
   }
   super.handleMessage(msg);
  }
 };
 public AudioRecorderButton(Context context, AttributeSet attrs) {
  super(context, attrs);
  mDialogManager = new DialogManager(context);
  //录音文件存放地址
  String dir = Environment.getExternalStorageDirectory() + "/ldm_voice";
  mAudioManager = AudioManager.getInstance(dir);
  mAudioManager.setOnAudioStateListener(new AudioManager.AudioStateListener() {
   public void wellPrepared() {
    mHandler.sendEmptyMessage(MSG_AUDIO_PREPARED);
   }
  });
  // 由于这个类是button所以在构造方法中添加监听事件
  setOnLongClickListener(new OnLongClickListener() {
   public boolean onLongClick(View v) {
    mReady = true;
    mAudioManager.prepareAudio();
    return false;
   }
  });
 }
 public AudioRecorderButton(Context context) {
  this(context, null);
 }
 
 public interface AudioFinishRecorderCallBack {
  void onFinish(float seconds, String filePath);
 }
 private AudioFinishRecorderCallBack finishRecorderCallBack;
 public void setFinishRecorderCallBack(AudioFinishRecorderCallBack listener) {
  finishRecorderCallBack = listener;
 }
 
 @Override
 public boolean onTouchEvent(MotionEvent event) {
  //获取TouchEvent状态
  int action = event.getAction();
  // 获得x轴坐标
  int x = (int) event.getX();
  // 获得y轴坐标
  int y = (int) event.getY();
  switch (action) {
   case MotionEvent.ACTION_DOWN://手指按下
    changeState(STATE_RECORDING);
    break;
   case MotionEvent.ACTION_MOVE://手指移动
    if (isRecording) {
     //根据x,y的坐标判断是否需要取消
     if (wantToCancle(x, y)) {
      changeState(STATE_CANCEL);
     } else {
      changeState(STATE_RECORDING);
     }
    }
    break;
   case MotionEvent.ACTION_UP://手指放开
    if (!mReady) {
     reset();
     return super.onTouchEvent(event);
    }
    if (!isRecording || mTime < 0.6f) {//如果时间少于0.6s，则提示录音过短
     mDialogManager.tooShort();
     mAudioManager.cancel();
     // 延迟显示对话框
     mHandler.sendEmptyMessageDelayed(MSG_DIALOG_DIMISS, 1000);
    } else if (mCurrentState == STATE_RECORDING) {
     //如果状态为正在录音，则结束录制
     mDialogManager.dimissDialog();
     mAudioManager.release();
     if (finishRecorderCallBack != null) {
      finishRecorderCallBack.onFinish(mTime, mAudioManager.getCurrentFilePath());
     }
    } else if (mCurrentState == STATE_CANCEL) { // 想要取消
     mDialogManager.dimissDialog();
     mAudioManager.cancel();
    }
    reset();
    break;
  }
  return super.onTouchEvent(event);
 }
 
 private void reset() {
  isRecording = false;
  mTime = 0;
  mReady = false;
  changeState(STATE_NORMAL);
 }
 private boolean wantToCancle(int x, int y) {
  // 超过按钮的宽度
  if (x < 0 || x > getWidth()) {
   return true;
  }
  // 超过按钮的高度
  if (y < -DISTANCE_Y_CANCEL || y > getHeight() + DISTANCE_Y_CANCEL) {
   return true;
  }
  return false;
 }
 
 private void changeState(int state) {
  if (mCurrentState != state) {
   mCurrentState = 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_CANCEL:
     setBackgroundResource(R.drawable.btn_recorder_recording);
     mDialogManager.wantToCancel();
     setText(R.string.str_recorder_want_cancel);
     break;
   }
  }
 }
}

—-对话框管理工具类——

public class DialogManager {
 //弹出对话框
 private Dialog mDialog;
 //录音图标
 private ImageView mIcon;
 //音量显示 图标
 private ImageView mVoice;
 //对话框上提示文字
 private TextView mLable;
 //上下文对象
 private Context mContext;
 public DialogManager(Context context) {
  this.mContext = context;
 }
 
 public void showRecordingDialog() {
  //根据指定sytle实例化Dialog
  mDialog = new Dialog(mContext, R.style.AudioDialog);
  LayoutInflater inflater = LayoutInflater.from(mContext);
  View view = inflater.inflate(R.layout.dialog_recorder, null);
  mDialog.setContentView(view);
  mIcon = (ImageView) view.findViewById(R.id.id_recorder_dialog_icon);
  mVoice = (ImageView) view.findViewById(R.id.id_recorder_dialog_voice);
  mLable = (TextView) view.findViewById(R.id.id_recorder_dialog_label);
  mDialog.show();
 }
 
 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("手指上滑，取消发送");
  }
 }
 
 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");
  }
 }
 
 public void tooShort() {
  if (mDialog != null && mDialog.isShowing()) { //显示状态
   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");
  }
 }
 
 public void dimissDialog() {
  if (mDialog != null && mDialog.isShowing()) { //显示状态
   mDialog.dismiss();
   mDialog = null;
  }
 }
 // 显示更新音量级别的对话框
 public void updateVoiceLevel(int level) {
  if (mDialog != null && mDialog.isShowing()) { //显示状态
   mIcon.setVisibility(View.VISIBLE);
   mVoice.setVisibility(View.VISIBLE);
   mLable.setVisibility(View.VISIBLE);
   //设置图片的id，我们放在drawable中的声音图片是以v+数字格式的
   int resId = mContext.getResources().getIdentifier("v" + level, "drawable", mContext.getPackageName());
   mVoice.setImageResource(resId);
  }
 }
}

—-声音播放工具类——

public class MediaPlayerManager {
 //播放音频API类：MediaPlayer
 private static MediaPlayer mMediaPlayer;
 //是否暂停
 private static boolean isPause;
 
 public static void playSound(String filePath, MediaPlayer.OnCompletionListener onCompletionListener) {
  if (mMediaPlayer == null) {
   mMediaPlayer = new MediaPlayer();
   //设置一个error监听器
   mMediaPlayer.setOnErrorListener(new MediaPlayer.OnErrorListener() {
    public boolean onError(MediaPlayer arg0, int arg1, int arg2) {
     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 (Exception e) {
  }
 }
 
 public static void pause() {
  if (mMediaPlayer != null && mMediaPlayer.isPlaying()) { //正在播放的时候
   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;
  }
 }

—–录音操作工具类—–

public class AudioManager {
 //AudioRecord: 主要是实现边录边播（AudioRecord+AudioTrack）以及对音频的实时处理。
 // 优点：可以语音实时处理，可以实现各种音频的封装
 private MediaRecorder mMediaRecorder;
 //录音文件
 private String mDir;
 //当前录音文件目录
 private String mCurrentFilePath;
 //单例模式
 private static AudioManager mInstance;
 //是否准备好
 private boolean isPrepare;
 //私有构造方法
 private AudioManager(String dir) {
  mDir = dir;
 }
 //对外公布获取实例的方法
 public static AudioManager getInstance(String dir) {
  if (mInstance == null) {
   synchronized (AudioManager.class) {
    if (mInstance == null) {
     mInstance = new AudioManager(dir);
    }
   }
  }
  return mInstance;
 }
 
 public interface AudioStateListener {
  void wellPrepared();
 }
 public AudioStateListener mAudioStateListener;
 
 public void setOnAudioStateListener(AudioStateListener listener) {
  mAudioStateListener = listener;
 }
 
 public void prepareAudio() {
  try {
   isPrepare = false;
   File dir = new File(mDir);
   if (!dir.exists()) {
    dir.mkdirs();//文件不存在，则创建文件
   }
   String fileName = generateFileName();
   File file = new File(dir, fileName);
   mCurrentFilePath = file.getAbsolutePath();
   mMediaRecorder = new MediaRecorder();
   // 设置输出文件路径
   mMediaRecorder.setOutputFile(file.getAbsolutePath());
   // 设置MediaRecorder的音频源为麦克风
   mMediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
   // 设置音频格式为RAW_AMR
   mMediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.RAW_AMR);
   // 设置音频编码为AMR_NB
   mMediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
   // 准备录音
   mMediaRecorder.prepare();
   // 开始，必需在prepare()后调用
   mMediaRecorder.start();
   // 准备完成
   isPrepare = true;
   if (mAudioStateListener != null) {
    mAudioStateListener.wellPrepared();
   }
  } catch (Exception e) {
   e.printStackTrace();
  }
 }
 
 private String generateFileName() {
  //随机生成不同的UUID
  return UUID.randomUUID().toString() + ".amr";
 }
 
 public int getVoiceLevel(int maxlevel) {
  if (isPrepare) {
   try {
    // getMaxAmplitude返回的数值最大是32767
    return maxlevel * mMediaRecorder.getMaxAmplitude() / 32768 + 1;//返回结果1-7之间
   } catch (Exception e) {
    e.printStackTrace();
   }
  }
  return 1;
 }
 
 public void release() {
  mMediaRecorder.stop();
  mMediaRecorder.reset();
  mMediaRecorder = null;
 }
 
 public void cancel() {
  release();
  if (mCurrentFilePath != null) {
   //取消录音后删除对应文件
   File file = new File(mCurrentFilePath);
   file.delete();
   mCurrentFilePath = null;
  }
 }
 
 public String getCurrentFilePath() {
  return mCurrentFilePath;
 }
}

代码中有注释，就不贴图了，和微信语音聊天界面一样的，所以叫仿微信嘛，呵呵。运行了也可以看到效果。所有代码可以从这里下载：http://xiazai.jb51.net/201611/yuanma/AndroidWXchat(jb51.net).rar

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