Android仿微信语音聊天界面设计

 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();
 }

/**
 * @param
 * @author ldm
 * @description 自定义button
 * @time 2016/6/25 9:26
 */
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;

 /**
  * @description 获取音量大小的线程
  * @author ldm
  * @time 2016/6/25 9:30
  * @param
  */
 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);
 }

 /**
  * @description 录音完成后的回调
  * @author ldm
  * @time 2016/6/25 11:18
  * @param
 */
 public interface audiofinishrecordercallback {
  void onfinish(float seconds, string filepath);
 }

 private audiofinishrecordercallback finishrecordercallback;

 public void setfinishrecordercallback(audiofinishrecordercallback listener) {
  finishrecordercallback = listener;
 }

 /**
  * @param
  * @description 处理button的ontouchevent事件
  * @author ldm
  * @time 2016/6/25 9:35
  */
 @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);
 }

 /**
  * 恢复状态及标志位
  */
 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;
 }


 /**
  * @param
  * @description 根据状态改变button显示
  * @author ldm
  * @time 2016/6/25 9:36
  */
 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;
   }
  }
 }
}

/**
  * @description 对话框管理工具类
  * @author ldm
  * @time 2016/6/25 11:53
  * @param 
 */
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;
 }

 /**
  * @param
  * @description 显示对话框
  * @author ldm
  * @time 2016/6/25 9:56
  */
 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();
 }

 /**
  * @param
  * @description 正在录音状态的对话框
  * @author ldm
  * @time 2016/6/25 10:08
  */
 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");
  }
 }

 /**
  * @param
  * @description 取消录音状态对话框
  * @author ldm
  * @time 2016/6/25 10:08
  */
 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");
  }
 }

 /**
  * @param
  * @description时间过短提示的对话框
  * @author ldm
  * @time 2016/6/25 10:09
  */
 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");
  }
 }

 /**
  * @param
  * @description
  * @author ldm
  * @time 2016/6/25 取消（关闭）对话框
  */
 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);
  }
 }

}

/**
 * @param
 * @author ldm
 * @description 播放声音工具类
 * @time 2016/6/25 11:29
 */
public class mediaplayermanager {
 //播放音频api类：mediaplayer
 private static mediaplayer mmediaplayer;
 //是否暂停
 private static boolean ispause;

 /**
  * @param
  * filepath：文件路径
  * oncompletionlistener：播放完成监听
  * @description 播放声音
  * @author ldm
  * @time 2016/6/25 11:30
  */
 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) {

  }
 }

 /**
  * @param
  * @description 暂停播放
  * @author ldm
  * @time 2016/6/25 11:31
  */
 public static void pause() {
  if (mmediaplayer != null && mmediaplayer.isplaying()) { //正在播放的时候
   mmediaplayer.pause();
   ispause = true;
  }
 }

 /**
  * @param
  * @description 重新播放
  * @author ldm
  * @time 2016/6/25 11:31
  */
 public static void resume() {
  if (mmediaplayer != null && ispause) {
   mmediaplayer.start();
   ispause = false;
  }
 }

 /**
  * @param
  * @description 释放操作
  * @author ldm
  * @time 2016/6/25 11:32
  */
 public static void release() {
  if (mmediaplayer != null) {
   mmediaplayer.release();
   mmediaplayer = null;
  }
 }

/**
 * @param
 * @author ldm
 * @description 录音管理工具类
 * @time 2016/6/25 9:39
 */
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;
 }

 /**
  * @param
  * @author ldm
  * @description 录音准备工作完成回调接口
  * @time 2016/6/25 11:14
  */
 public interface audiostatelistener {
  void wellprepared();
 }

 public audiostatelistener maudiostatelistener;

 /**
  * @param
  * @description 供外部类调用的设置回调方法
  * @author ldm
  * @time 2016/6/25 11:14
  */
 public void setonaudiostatelistener(audiostatelistener listener) {
  maudiostatelistener = listener;
 }

 /**
  * @param
  * @description 录音准备工作
  * @author ldm
  * @time 2016/6/25 11:15
  */
 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();
  }
 }

 /**
  * @param
  * @description 随机生成录音文件名称
  * @author ldm
  * @time 2016/6/25 、
  */
 private string generatefilename() {
  //随机生成不同的uuid
  return uuid.randomuuid().tostring() + ".amr";
 }

 /**
  * @param
  * @description 获取音量值
  * @author ldm
  * @time 2016/6/25 9:49
  */
 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;
 }

 /**
  * @param
  * @description 释放资源
  * @author ldm
  * @time 2016/6/25 9:50
  */
 public void release() {
  mmediarecorder.stop();
  mmediarecorder.reset();
  mmediarecorder = null;
 }

 /**
  * @param
  * @description 录音取消
  * @author ldm
  * @time 2016/6/25 9:51
  */
 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;
  }

 }

 /**
  * @param
  * @description 获取当前文件路径
  * @author ldm
  * @time 2016/6/25 9:51
  */
 public string getcurrentfilepath() {

  return mcurrentfilepath;
 }
}