Android模仿微信语音聊天功能

项目效果如下：

项目目录结构如下：

代码如下：

AudioManager.java

package com.xuliugen.weichat;

import java.io.File;
import java.io.IOException;
import java.util.UUID;

import android.media.MediaRecorder;

public class AudioManager {
private MediaRecorder mMediaRecorder;
private String mDir;
private String mCurrentFilePath;

private static AudioManager mInstance;

private boolean isPrepare;

private AudioManager(String dir) {
mDir = dir;
}

public static AudioManager getInstance(String dir) {
if (mInstance == null) {
synchronized (AudioManager.class) {
if (mInstance == null) {
mInstance = new AudioManager(dir);
}
}
}
return mInstance;
}

/**
* 使用接口 用于回调
*/
public interface AudioStateListener {
void wellPrepared();
}

public AudioStateListener mAudioStateListener;

/**
* 回调方法
*/
public void setOnAudioStateListener(AudioStateListener listener) {
mAudioStateListener = listener;
}

// 去准备
public void prepareAudio() {
try {
isPrepare = false;
File dir = new File(mDir);
if (!dir.exists()) {
dir.mkdirs();
}
String fileName = generateFileName();
File file = new File(dir, fileName);

mCurrentFilePath =file.getAbsolutePath();

mMediaRecorder = new MediaRecorder();
// 设置输出文件
mMediaRecorder.setOutputFile(dir.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);
// 设置音频编码
mMediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);

// 准备录音
mMediaRecorder.prepare();
// 开始
mMediaRecorder.start();
// 准备结束
isPrepare = true;
if (mAudioStateListener != null) {
mAudioStateListener.wellPrepared();
}

} catch (IllegalStateException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}

}

/**
* 随机生成文件的名称
*/
private String generateFileName() {
return UUID.randomUUID().toString() + ".amr";
}

public int getVoiceLevel(int maxlevel) {
if (isPrepare) {
try {
// mMediaRecorder.getMaxAmplitude() 1~32767
return maxlevel * mMediaRecorder.getMaxAmplitude() / 32768 + 1;
} catch (Exception e) {
}
}
return 1;
}

/**
* 释放资源
*/
public void release() {
//mMediaRecorder.stop();
mMediaRecorder.reset();
mMediaRecorder = null;
}

/**
* 取消录音
*/
public void cancel() {
release();
if (mCurrentFilePath != null) {
File file = new File(mCurrentFilePath);
file.delete();
mCurrentFilePath = null;
}

}

public String getCurrentFilePath() {

return mCurrentFilePath;
}
}

AudioRecorderButton.java

package com.xuliugen.weichat;

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.xuliugen.weichat.R;
import com.xuliugen.weichat.AudioManager.AudioStateListener;

public class AudioRecorderButton extends Button {

private static final int STATE_NORMAL = 1;// 默认的状态
private static final int STATE_RECORDING = 2;// 正在录音
private static final int STATE_WANT_TO_CANCEL = 3;// 希望取消

private int mCurrentState = STATE_NORMAL; // 当前的状态
private boolean isRecording = false;// 已经开始录音

private static final int DISTANCE_Y_CANCEL = 50;

private DialogManager mDialogManager;
private AudioManager mAudioManager;

private float mTime;
// 是否触发longClick
private boolean mReady;

private static final int MSG_AUDIO_PREPARED = 0x110;
private static final int MSG_VOICE_CHANGED = 0x111;
private static final int MSG_DIALOG_DIMISS = 0x112;

/*
* 获取音量大小的线程
*/
private Runnable mGetVoiceLevelRunnable = new Runnable() {

public void run() {
while (isRecording) {
try {
Thread.sleep(100);
mTime += 0.1f;
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:
// 显示對話框在开始录音以后
mDialogManager.showRecordingDialog();
isRecording = true;
// 开启一个线程
new Thread(mGetVoiceLevelRunnable).start();
break;

case MSG_VOICE_CHANGED:
mDialogManager.updateVoiceLevel(mAudioManager.getVoiceLevel(7));
break;

case MSG_DIALOG_DIMISS:
mDialogManager.dimissDialog();
break;

}

super.handleMessage(msg);
}
};

/**
* 以下2个方法是构造方法
*/
public AudioRecorderButton(Context context, AttributeSet attrs) {
super(context, attrs);
mDialogManager = new DialogManager(context);

String dir = "/storage/sdcard0/my_weixin";
//String dir = Environment.getExternalStorageDirectory()+"/my_weixin";

mAudioManager = AudioManager.getInstance(dir);
mAudioManager.setOnAudioStateListener(new 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);
}

/**
* 录音完成后的回调
*/
public interface AudioFinishRecorderListener {
void onFinish(float seconds, String filePath);
}

private AudioFinishRecorderListener audioFinishRecorderListener;

public void setAudioFinishRecorderListener(AudioFinishRecorderListener listener) {
audioFinishRecorderListener = listener;
}

/**
* 屏幕的触摸事件
*/
@Override
public boolean onTouchEvent(MotionEvent event) {

int action = event.getAction();
int x = (int) event.getX();// 获得x轴坐标
int y = (int) event.getY();// 获得y轴坐标

switch (action) {
case MotionEvent.ACTION_DOWN:
changeState(STATE_RECORDING);
break;
case MotionEvent.ACTION_MOVE:

if (isRecording) {
// 如果想要取消，根据x,y的坐标看是否需要取消
if (wantToCancle(x, y)) {
changeState(STATE_WANT_TO_CANCEL);
} else {
changeState(STATE_RECORDING);
}
}

break;
case MotionEvent.ACTION_UP:
if (!mReady) {
reset();
return super.onTouchEvent(event);
}
if (!isRecording || mTime < 0.6f) {
mDialogManager.tooShort();
mAudioManager.cancel();
mHandler.sendEmptyMessageDelayed(MSG_DIALOG_DIMISS, 1000);// 延迟显示对话框
} else if (mCurrentState == STATE_RECORDING) { // 正在录音的时候，结束
mDialogManager.dimissDialog();
mAudioManager.release();

if (audioFinishRecorderListener != null) {
audioFinishRecorderListener.onFinish(mTime,mAudioManager.getCurrentFilePath());
}

} else if (mCurrentState == STATE_WANT_TO_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) {
if (x < 0 || x > getWidth()) { // 超过按钮的宽度
return true;
}
// 超过按钮的高度
if (y < -DISTANCE_Y_CANCEL || y > getHeight() + DISTANCE_Y_CANCEL) {
return true;
}

return false;
}

/**
* 改变
*/
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_WANT_TO_CANCEL:
setBackgroundResource(R.drawable.btn_recorder_recording);
setText(R.string.str_recorder_want_cancel);

mDialogManager.wantToCancel();
break;
}
}
}
}

DialogManager.java

package com.xuliugen.weichat;

import android.app.AlertDialog;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.ImageView;
import android.widget.TextView;

import com.xuliugen.weichat.R;

/**
* 用于管理Dialog
*
* @author xuliugen
*
*/
public class DialogManager {

private AlertDialog.Builder builder;
private ImageView mIcon;
private ImageView mVoice;
private TextView mLable;

private Context mContext;

private AlertDialog dialog;//用于取消AlertDialog.Builder

/**
* 构造方法 传入上下文
*/
public DialogManager(Context context) {
this.mContext = context;
}

// 显示录音的对话框
public void showRecordingDialog() {

builder = new AlertDialog.Builder(mContext, R.style.AudioDialog);
LayoutInflater inflater = LayoutInflater.from(mContext);
View view = inflater.inflate(R.layout.dialog_recorder,null);

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);

builder.setView(view);
builder.create();
dialog = builder.show();
}

public void recording(){
if(dialog != null && dialog.isShowing()){ //显示状态
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");
}
}

// 显示想取消的对话框
public void wantToCancel() {
if(dialog != null && dialog.isShowing()){ //显示状态
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");
}
}

// 显示时间过短的对话框
public void tooShort() {
if(dialog != null && dialog.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");
}
}

// 显示取消的对话框
public void dimissDialog() {
if(dialog != null && dialog.isShowing()){ //显示状态
dialog.dismiss();
dialog = null;
}
}

// 显示更新音量级别的对话框
public void updateVoiceLevel(int level) {
if(dialog != null && dialog.isShowing()){ //显示状态
//          mIcon.setVisibility(View.VISIBLE);
//          mVoice.setVisibility(View.VISIBLE);
//          mLable.setVisibility(View.VISIBLE);

//设置图片的id
int resId = mContext.getResources().getIdentifier("v"+level, "drawable", mContext.getPackageName());
mVoice.setImageResource(resId);
}
}

}

MainActivity.java

package com.xuliugen.weichat;

import java.util.ArrayList;
import java.util.List;

import com.xuliugen.weichat.AudioRecorderButton.AudioFinishRecorderListener;

import android.app.Activity;
import android.graphics.drawable.AnimationDrawable;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.AdapterView.OnItemClickListener;

public class MainActivity extends Activity {
private ListView mListView;

private ArrayAdapter<Recorder> mAdapter;
private List<Recorder> mDatas = new ArrayList<MainActivity.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.setAudioFinishRecorderListener(new AudioFinishRecorderListener() {

public void onFinish(float seconds, String filePath) {
Recorder recorder = new Recorder(seconds, filePath);
mDatas.add(recorder);
mAdapter.notifyDataSetChanged(); //通知更新的内容
mListView.setSelection(mDatas.size() - 1); //将lisview设置为最后一个
}
});

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) {
// 播放动画（帧动画）
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
MediaManager.playSound(mDatas.get(position).filePath,new MediaPlayer.OnCompletionListener() {

public void onCompletion(MediaPlayer mp) {
animView.setBackgroundResource(R.drawable.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();
}

class Recorder {
float time;
String filePath;

public Recorder(float time, String filePath) {
super();
this.time = time;
this.filePath = filePath;
}

public float getTime() {
return time;
}

public void setTime(float time) {
this.time = time;
}

public String getFilePath() {
return filePath;
}

public void setFilePath(String filePath) {
this.filePath = filePath;
}

}

}

MediaManager.java

package com.xuliugen.weichat;

import android.media.AudioManager;
import android.media.MediaPlayer;
import android.media.MediaPlayer.OnCompletionListener;
import android.media.MediaPlayer.OnErrorListener;

public class MediaManager {

private static MediaPlayer mMediaPlayer;
private static boolean isPause;

/**
* 播放音乐
* @param filePath
* @param onCompletionListener
*/
public static void playSound(String filePath,OnCompletionListener onCompletionListener) {
if (mMediaPlayer == null) {
mMediaPlayer = new MediaPlayer();

//设置一个error监听器
mMediaPlayer.setOnErrorListener(new OnErrorListener() {

public boolean onError(MediaPlayer arg0, int arg1, int arg2) {
mMediaPlayer.reset();
return false;
}
});
} else {
mMediaPlayer.reset();
}

try {
mMediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
mMediaPlayer.setOnCompletionListener(onCompletionListener);
mMediaPlayer.setDataSource(filePath);
mMediaPlayer.prepare();
mMediaPlayer.start();
} catch (Exception e) {

}
}

/**
* 暂停播放
*/
public static void pause() {
if (mMediaPlayer != null && mMediaPlayer.isPlaying()) { //正在播放的时候
mMediaPlayer.pause();
isPause = true;
}
}

/**
* 当前是isPause状态
*/
public static void resume() {
if (mMediaPlayer != null && isPause) {
mMediaPlayer.start();
isPause = false;
}
}

/**
* 释放资源
*/
public static void release() {
if (mMediaPlayer != null) {
mMediaPlayer.release();
mMediaPlayer = null;
}
}
}

RecoderAdapter.java

package com.xuliugen.weichat;

import java.util.List;

import android.content.Context;
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.xuliugen.weichat.MainActivity.Recorder;

public class RecoderAdapter extends ArrayAdapter<Recorder> {

private Context mContext;
private List<Recorder> mDatas;

private int mMinItemWidth; //最小的item宽度
private int mMaxItemWidth; //最大的item宽度
private LayoutInflater mInflater;

public RecoderAdapter(Context context, List<Recorder> datas) {
super(context, -1, datas);

mContext = context;
mDatas = datas;

//获取屏幕的宽度
WindowManager wm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
DisplayMetrics outMetrics = new DisplayMetrics();
wm.getDefaultDisplay().getMetrics(outMetrics);
mMaxItemWidth = (int) (outMetrics.widthPixels * 0.7f);
mMinItemWidth = (int) (outMetrics.widthPixels * 0.15f);

mInflater = LayoutInflater.from(context);
}

/**
* 定义一个ViewHolder
*/
private class ViewHolder {
TextView seconds; // 时间
View length; // 长度
}

@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder = null;
if (convertView == null) {
convertView = mInflater.inflate(R.layout.item_recoder, parent,false);
holder = new ViewHolder();
holder.seconds = (TextView) convertView.findViewById(R.id.id_recoder_time);
holder.length = convertView.findViewById(R.id.id_recoder_lenght);

convertView.setTag(holder);

} else {
holder = (ViewHolder) convertView.getTag();
}
holder.seconds.setText(Math.round(getItem(position).time) + "\"");
ViewGroup.LayoutParams lp = holder.length.getLayoutParams();
lp.width = (int) (mMinItemWidth + (mMaxItemWidth / 60f)* getItem(position).time);
return convertView;
}
}

完整项目下载地址：http://download.csdn.net/detail/u010870518/8655667