Android录制声音文件（音频），并播放

readme：1、这个demo中没有对多次点击同一个声音文件做详细处理，偶尔会有崩溃，用的时候需要注意。2、按住录音按钮录音过程中，只对竖直方向处理了一下，水平方向没写；3、没有做删除某个声音文件的操作，但是测试的时候实现了功能，需要用到的话，在MainActivity—>onItemClick中的TODO中有详细说明；4、这只是个demo，如果要在项目中使用，先写出demo，没问题了，再引入项目，在写成demo后，在真机上运行的时候，如果出现获取录音权限，最好选择“允许”，如果拒绝，可能会崩溃。

记得打开手机运行录音的权限

先来效果图：



目录结构：

1、添加权限：

<uses-permission android:name="android.permission.RECORD_AUDIO"/>
<uses-permission android:name="android.permission.WAKE_LOCK"/>
<uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS"/>
<uses-permission android:name="android.permission.VIBRATE"/>
<uses-permission android:name="android.permission.WRITE_SETTINGS"/>
<uses-permission android:name="android.permission.INTERACT_ACROSS_USERS_FULL"/>
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
<uses-permission android:name="android.permission.CALL_PHONE"/>
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS" />

2、新建MediaRecorderUtils，复制以下源码：

package com.chen.voicedemo;

import android.media.MediaRecorder;
import android.os.Handler;
import android.util.Log;
import android.widget.ImageView;

import java.io.File;

/**
* 录音工具类
*/
public class MediaRecorderUtils {

private static MediaRecorder recorder;
static MediaRecorderUtils mediaRecorderUtils;
static ImageView mimageView;
private String path;

/**
* 获得单例对象，传入一个显示音量大小的imageview对象，如不需要显示可以传null
*/
public static MediaRecorderUtils getInstence(ImageView imageView) {
if (mediaRecorderUtils == null) {
mediaRecorderUtils = new MediaRecorderUtils();
}
mimageView = imageView;
return mediaRecorderUtils;
}

/**
* 获得音频路径
*/
public String getPath() {
return path;
}

/**
* 初始化
*/
private void init() {

recorder = new MediaRecorder();// new出MediaRecorder对象
recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
// 设置MediaRecorder的音频源为麦克风
recorder.setOutputFormat(MediaRecorder.OutputFormat.RAW_AMR);
// 设置MediaRecorder录制的音频格式
recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
// 设置MediaRecorder录制音频的编码为amr.
File file = new File(Utils.IMAGE_SDCARD_MADER);
if (!file.exists()) {
file.mkdirs();
}
path = Utils.IMAGE_SDCARD_MADER + Utils.getVoiceFileName() + "stock.amr";
recorder.setOutputFile(path);
// 设置录制好的音频文件保存路径
try {
recorder.prepare();// 准备录制
} catch (Exception e) {
e.printStackTrace();
}
}

/**
* 开始录音
*/
public void MediaRecorderStart() {
init();
try {
recorder.start();
flag = true;
if (mimageView != null) {
updateMicStatus();
}
} catch (Exception e) {
e.printStackTrace();
Log.e("chen", "录制失败");
}
}

/**
* 停止录音
*/
public void MediaRecorderStop() {
try {
recorder.stop();
recorder.release(); //释放资源
flag = false;
mimageView = null;
recorder = null;
} catch (Exception e) {
e.toString();
}

}

/**
* 删除已录制的音频
*/
public void MediaRecorderDelete() {
File file = new File(path);
if (file.isFile()) {
file.delete();
}
file.exists();
}

;

private final Handler mHandler = new Handler();
private Runnable mUpdateMicStatusTimer = new Runnable() {
public void run() {
updateMicStatus();
}
};
private int BASE = 1;
private int SPACE = 1000;// 间隔取样时间
private boolean flag = true;

/**
* 更新话筒状态
*/
private void updateMicStatus() {
if (recorder != null) {
double ratio = (double) recorder.getMaxAmplitude() / BASE;
double db = 0;// 分贝
if (ratio > 1) {
db = 20 * Math.log10(ratio);
}
int i = (int) db / 10;
switch (i) {
case 1:
mimageView.setImageResource(R.drawable.rc_ic_volume_1);
break;
case 2:
mimageView.setImageResource(R.drawable.rc_ic_volume_2);
break;
case 3:
mimageView.setImageResource(R.drawable.rc_ic_volume_3);
break;
case 4:
mimageView.setImageResource(R.drawable.rc_ic_volume_4);
break;
case 5:
mimageView.setImageResource(R.drawable.rc_ic_volume_5);
break;
case 6:
mimageView.setImageResource(R.drawable.rc_ic_volume_6);
break;
case 7:
mimageView.setImageResource(R.drawable.rc_ic_volume_7);
break;
case 8:
mimageView.setImageResource(R.drawable.rc_ic_volume_8);
break;
}
if (flag) {
mHandler.postDelayed(mUpdateMicStatusTimer, SPACE);
}
}
}

}

3、创建MyChronometer，复制以下代码

package com.chen.voicedemo;

import android.annotation.SuppressLint;
import android.content.Context;
import android.os.Handler;
import android.os.Message;
import android.os.SystemClock;
import android.util.AttributeSet;
import android.view.accessibility.AccessibilityEvent;
import android.view.accessibility.AccessibilityNodeInfo;
import android.widget.TextView;

public class MyChronometer extends TextView {

private static final String TAG = "MyChronometer";

/**
* A callback that notifies when the MyChronometer has incremented on its
* own.
*/
public interface OnMyChronometerTickListener {

/**
* Notification that the MyChronometer has changed.
*/
void onMyChronometerTick(int time);

}

public interface OnMyChronometerTimeListener {

/**
* Notification that the MyChronometer has changed.
*/
void OnMyChronometerTimeListener(int time);

}

private OnMyChronometerTimeListener OnMyChronometerTimeListener;

private long mBase;
private boolean mVisible;
private boolean mStarted;
private boolean mRunning;
private OnMyChronometerTickListener mOnMyChronometerTickListener;
private long now_time;

private static final int TICK_WHAT = 2;

/**
* Initialize this MyChronometer object. Sets the base to the current time.
*/
public MyChronometer(Context context) {
this(context, null, 0);
}

/**
* Initialize with standard view layout information. Sets the base to the
* current time.
*/
public MyChronometer(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}

/**
* Initialize with standard view layout information and style. Sets the base
* to the current time.
*/
public MyChronometer(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
init();
}

private void init() {
mBase = SystemClock.elapsedRealtime();
updateText(mBase);
}

/**
* Set the time that the count-up timer is in reference to.
*
* @param base Use the {@link SystemClock#elapsedRealtime} time base.
*/
public void setBase(long base) {
mBase = base;
updateText(SystemClock.elapsedRealtime());
}

/**
* Sets the listener to be called when the MyChronometer changes.
*
* @param listener The listener.
*/
public void setOnMyChronometerTickListener(OnMyChronometerTickListener listener) {
mOnMyChronometerTickListener = listener;
}

public void setOnMyChronometerTimeListener(OnMyChronometerTimeListener listener) {
OnMyChronometerTimeListener = listener;
}

/**
* Start counting up. This does not affect the base as set from
* {@link #setBase}, just the view display.
* <p/>
* MyChronometer works by regularly scheduling messages to the handler, even
* when the Widget is not visible. To make sure resource leaks do not occur,
* the user should make sure that each start() call has a reciprocal call to
* {@link #stop}.
*/
public void start() {
mStarted = true;
updateRunning();
}

/**
* Stop counting up. This does not affect the base as set from
* {@link #setBase}, just the view display.
* <p/>
* This stops the messages to the handler, effectively releasing resources
* that would be held as the MyChronometer is running, via {@link #start}.
*/
public void stop() {
mStarted = false;
updateRunning();
now_time /= 10;
if (OnMyChronometerTimeListener != null) {
OnMyChronometerTimeListener.OnMyChronometerTimeListener((int) now_time);
}
}

@Override
protected void onDetachedFromWindow() {
super.onDetachedFromWindow();
mVisible = false;
updateRunning();
}

@Override
protected void onWindowVisibilityChanged(int visibility) {
super.onWindowVisibilityChanged(visibility);
mVisible = visibility == VISIBLE;
updateRunning();
}

private synchronized void updateText(long now) {

long seconds = now - mBase;
seconds /= 10;
now_time = seconds;

int time_m = (int) (seconds / 100);
if (mOnMyChronometerTickListener != null) {
mOnMyChronometerTickListener.onMyChronometerTick(time_m);
}
int time_s = (int) (seconds % 100);
setText(time_m + "");

}

private void updateRunning() {
boolean running = mVisible && mStarted;
if (running != mRunning) {
if (running) {
updateText(SystemClock.elapsedRealtime());
mHandler.sendMessageDelayed(Message.obtain(mHandler, TICK_WHAT), 1000);
} else {
mHandler.removeMessages(TICK_WHAT);
}
mRunning = running;
}
}

private Handler mHandler = new Handler() {
public void handleMessage(Message m) {
if (mRunning) {
updateText(SystemClock.elapsedRealtime());
sendMessageDelayed(Message.obtain(this, TICK_WHAT), 1000);
}
}
};

@SuppressLint("NewApi")
@Override
public void onInitializeAccessibilityEvent(AccessibilityEvent event) {
super.onInitializeAccessibilityEvent(event);
event.setClassName(MyChronometer.class.getName());
}

@SuppressLint("NewApi")
@Override
public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) {
super.onInitializeAccessibilityNodeInfo(info);
info.setClassName(MyChronometer.class.getName());
}

}

4、创建工具类

package com.chen.voicedemo;

import android.Manifest;
import android.content.Context;
import android.content.pm.PackageManager;
import android.os.Environment;
import android.support.v4.content.ContextCompat;
import android.widget.Toast;

import java.io.File;
import java.text.SimpleDateFormat;
import java.util.ArrayList;

/**
* 工具
*/
public class Utils {

/**
* SD卡下语音目录
*/
public static final String IMAGE_SDCARD_MADER = Environment
.getExternalStorageDirectory()
+ "/chen/voice/";

/**
* 检查录音权限6.0
*/
public static boolean checkVoice(Context context) {

try {
if (ContextCompat.checkSelfPermission(context, Manifest.permission.RECORD_AUDIO) != PackageManager.PERMISSION_GRANTED) {
return false;
} else {
return true;
}
} catch (Exception e) {
return true;
}

}

private static Toast toast;

/**
* 单例吐司
*/
public static void showToast(Context context, String msg) {
if (toast == null) {
toast = Toast.makeText(context, msg, Toast.LENGTH_SHORT);
}
toast.setText(msg);
toast.show();
}

/**
* 获取指定文件夹下的所有文件路径
*
* @param root 指定文件夹路径
* @return 指定文件夹下的所有文件
*/
public static ArrayList<String> getVideoFiles(String root) {
if (root == null || root == "")
return null;

ArrayList<String> list = new ArrayList<>();
File file = new File(root);
File[] fileList = file.listFiles();

for (File f : fileList) {
list.add(f.getPath());
}

return list;
}

/**
* 获取声音文件名字
*
* @return 假如当前录制声音时间是2016年4月29号14点30分30秒。得到的文件名字就是20160429143030.这样保证文件名的唯一性
*/
public static String getVoiceFileName() {
long getNowTimeLong = System.currentTimeMillis();
SimpleDateFormat time = new SimpleDateFormat("yyyyMMddHHmmss");
String result = time.format(getNowTimeLong);
return result;
}

}

5、MainActivity

package com.chen.voicedemo;

import android.app.Activity;
import android.graphics.drawable.AnimationDrawable;
import android.graphics.drawable.ColorDrawable;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.os.SystemClock;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
import android.view.WindowManager;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.PopupWindow;
import android.widget.TextView;

import java.io.File;
import java.util.ArrayList;
import java.util.List;

public class MainActivity extends Activity implements View.OnTouchListener, AdapterView.OnItemClickListener {

/**
* 开始录音按钮
*/
private TextView voice;
/**
* 用于定位。使录音时展示的popupwindow，展示在该控件 的下面
*/
private TextView voice_popup;

/**
* 展示指定文件夹下所有录制的声音文件
*/
private TextView show_voice_list;

/**
* 展示目标文件夹下，所有已录制的声音路径
*/
private ListView show_voices_listview;

private List<String> voiceList;

/**
* 停止播放声音
*/
private TextView stop_show_voice;

/**
* 播放声音时，动的图片
*/
private ImageView voice_anim;

/**
* 系统播放器
*/
private MediaPlayer mediaPlayer;

private Boolean flag = true;
private float int_x = 0;
private float int_y = 0;

/**
* 用于限制最大录音时常。单位是秒。意义是：最大录60秒的音频，到了60秒的是，自动停止
*/
private int maxRecordTime = 60;

/**
* 用于显示频繁操作时间间隔。单位是毫秒。意义是：500毫秒内再次操作，就算是频频操作，做相应处理
*/
private int oftenOperationTime = 500;

private MyAdapter myAdapter;

private AnimationDrawable animation;

/**
* 录音popup
*/
private PopupWindow voice_popupWindow;
/**
* 录音时声音变化
*/
private ImageView voice_shengyin;
/**
* 录音计时器
*/
private MyChronometer mychronometer;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.activity_main);

voiceList = new ArrayList<String>();

voice = (TextView) findViewById(R.id.voice);
voice_popup = (TextView) findViewById(R.id.voice_popup);
voice_anim = (ImageView) findViewById(R.id.voice_anim);
voice_anim.setImageResource(R.drawable.lcs_voice_receive);

show_voice_list = (TextView) findViewById(R.id.show_voice_list);

show_voice_list.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
voiceList = Utils.getVideoFiles(Utils.IMAGE_SDCARD_MADER);
if (voiceList.size()>0){
myAdapter.notifyDataSetChanged();
}else{
Utils.showToast(MainActivity.this, "没有文件");
}
}
});

show_voices_listview = (ListView) findViewById(R.id.show_voices);
show_voices_listview.setOnItemClickListener(this);
myAdapter = new MyAdapter();

stop_show_voice = (TextView) findViewById(R.id.stop_show_voice);

/**
* 停止播放的监听器
*/
stop_show_voice.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {

Log.e("chen", "点击了停止播放按钮");

if (mediaPlayer != null) {
if (mediaPlayer.isPlaying()) {
mediaPlayer.release();// 释放资源
}
mediaPlayer = null;
}
if (animation != null && animation.isRunning()) {
animation.stop();
}
voice_anim.setImageResource(R.drawable.lcs_voice_receive);
}
});

show_voices_listview.setAdapter(myAdapter);

voice.setOnTouchListener(this);

}

/**
* 声音文件列表的item点击事件,播放对应声音文件
*
* @param parent
* @param view
* @param position
* @param id
*/
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {

//TODO 以下4行，是用来做测试，点击item，手机SD卡上对应路径下的声音文件就会被删除。如果录制声音失败，或者不满足条件，可以把以下4行写成一个工具方法调用，删除不满意的文件。这里不做详细演示
//File f_delete=new File(voiceList.get(position));
//f_delete.delete();
//voiceList.remove(voiceList.get(position));
//myAdapter.notifyDataSetChanged();
//TODO 以上4行，是用来做测试，点击item，手机SD卡上对应路径下的声音文件就会被删除。

try {
mediaPlayer = new MediaPlayer();

/**
* 播放过程中展示的动画
*/
mediaPlayer.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {

@Override
public void onPrepared(MediaPlayer mp) {
if (mp != null) {
mp.start();
voice_anim.setImageResource(R.drawable.voice_anim);
}
}
});

/**
*  播放完成监听
*/
mediaPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
@Override
public void onCompletion(MediaPlayer mp) {
if (mp.isPlaying()) {
mp.release();// 释放资源
}
animation = (AnimationDrawable) voice_anim.getDrawable();
if (animation != null && animation.isRunning()) {
animation.stop();
}
voice_anim.setImageResource(R.drawable.lcs_voice_receive);
}
});
mediaPlayer.setDataSource(voiceList.get(position));
// 缓冲
mediaPlayer.prepare();

} catch (Exception e) {
Utils.showToast(MainActivity.this, "语音异常，加载失败");
}
}

/**
* 展示声音列表的adapter
*/
class MyAdapter extends BaseAdapter {

@Override
public int getCount() {
return voiceList.size() == 0 ? 0 : voiceList.size();
}

@Override
public Object getItem(int position) {
return null;
}

@Override
public long getItemId(int position) {
return 0;
}

@Override
public View getView(int position, View convertView, ViewGroup parent) {
TextView tv = new TextView(MainActivity.this);
tv.setText(voiceList.get(position));
tv.setTextSize(20);
return tv;
}
}

/**
* 开始录制按钮的onTouch事件
*
* @param v
* @param event
* @return
*/
@Override
public boolean onTouch(View v, MotionEvent event) {

if (v.getId() == R.id.voice) {

//检查权限
if (!Utils.checkVoice(this)) {
if (event.getAction() == MotionEvent.ACTION_DOWN) {
Utils.showToast(this, "录音权限未打开，请打开录音权限!");
}
return true;
}

//避免短时间里频繁操作
if (!getTimeTF(SystemClock.elapsedRealtime()) && event.getAction() == MotionEvent.ACTION_DOWN) {
Utils.showToast(this, "操作过于频繁");
return true;
}

if (event.getAction() == MotionEvent.ACTION_DOWN) {
setTime(SystemClock.elapsedRealtime());
}
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
int_x = event.getRawX();
int_y = event.getRawY();
VoicePopupWindow();
mychronometer.setBase(SystemClock.elapsedRealtime());
mychronometer.start();
MediaRecorderUtils.getInstence(voice_shengyin).MediaRecorderStart();
flag = true;
mychronometer.setOnMyChronometerTickListener(new MyChronometer.OnMyChronometerTickListener() {
@Override
public void onMyChronometerTick(int time) {
if (time == maxRecordTime || time > maxRecordTime) {
mychronometer.setText("60");
setVoiceToUp();
}
}
});
break;
case MotionEvent.ACTION_MOVE:
if (flag) {
if (Math.abs(int_y) - Math.abs(event.getRawY()) > 100.0 && flag) {
voice_popupWindow.dismiss();
mychronometer.stop();
MediaRecorderUtils.getInstence(voice_shengyin).MediaRecorderStop();
MediaRecorderUtils.getInstence(voice_shengyin).MediaRecorderDelete();
flag = false;
}
}
break;
case MotionEvent.ACTION_CANCEL:
if (flag) {
voice_popupWindow.dismiss();
mychronometer.stop();
MediaRecorderUtils.getInstence(voice_shengyin).MediaRecorderStop();
}
break;
case MotionEvent.ACTION_UP:
if (flag) {
setVoiceToUp();
}
break;
}
return true;
}
return false;
}

private long base_time = 0;

private void setTime(long time) {
base_time = time;
}

private boolean getTimeTF(long time) {
int data = (int) (time - base_time) / oftenOperationTime;
if (data > 1) {
return true;
} else {
return false;
}
}

/**
* 声音popupwindow
*/
public void VoicePopupWindow() {
View view = LayoutInflater.from(this).inflate(R.layout.voice_popupwindow, null);
voice_popupWindow = new PopupWindow(this);
voice_popupWindow.setWidth(WindowManager.LayoutParams.MATCH_PARENT);
voice_popupWindow.setHeight(WindowManager.LayoutParams.MATCH_PARENT);
voice_shengyin = (ImageView) view.findViewById(R.id.voice_shengyin);
mychronometer = (MyChronometer) view.findViewById(R.id.mychronometer);
voice_popupWindow.setContentView(view);
voice_popupWindow.setFocusable(true);
ColorDrawable dw = new ColorDrawable(0x00000000);
voice_popupWindow.setBackgroundDrawable(dw);
voice_popupWindow.showAsDropDown(voice_popup);
}

private void setVoiceToUp() {
flag = false;
voice_popupWindow.dismiss();
mychronometer.stop();
MediaRecorderUtils.getInstence(voice_shengyin).MediaRecorderStop();
int time = Integer.parseInt(mychronometer.getText().toString());

if (time != 0) {
File file = new File(MediaRecorderUtils.getInstence(voice_shengyin).getPath());
if (file.length() > 0) {
voiceList = Utils.getVideoFiles(Utils.IMAGE_SDCARD_MADER);
myAdapter.notifyDataSetChanged();

} else {
Utils.showToast(this, "录音失败，请检查权限");
}
} else {
Utils.showToast(this, "录音时间太短");
}
}

}

6、activity_main布局

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
>

<TextView
android:id="@+id/voice_popup"
android:layout_width="match_parent"
android:layout_height="1dip"/>

<ListView
android:id="@+id/show_voices"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"/>

<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">

<ImageView
android:id="@+id/voice_anim"
android:layout_width="60dp"
android:layout_height="30dp"
android:layout_centerVertical="true"
android:layout_marginLeft="30dp"
android:background="#00ff00"/>

<TextView
android:id="@+id/stop_show_voice"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:layout_gravity="center_horizontal"
android:layout_marginBottom="20dp"
android:layout_marginRight="20dp"
android:background="#00ff00"
android:padding="10dp"
android:text="停止播放"
android:textColor="#000000"
android:textSize="20sp"
/>

<TextView
android:id="@+id/show_voice_list"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_gravity="center_horizontal"
android:layout_marginBottom="20dp"
android:layout_marginRight="20dp"
android:layout_toLeftOf="@id/stop_show_voice"
android:background="#00ff00"
android:padding="10dp"
android:text="列表"
android:textColor="#000000"
android:textSize="20sp"
/>

</RelativeLayout>

<TextView
android:id="@+id/voice"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:background="#00ff00"
android:padding="10dp"
android:text="开始录音"
android:textColor="#000000"
android:textSize="25sp"/>
</LinearLayout>

7、voice_popupwindow布局代码：录音的时候，会出现以下图片中的popupwindow

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">

<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:background="@android:color/black"
android:orientation="vertical"
android:paddingBottom="40dip"
android:paddingLeft="60dip"
android:paddingRight="60dip"
android:paddingTop="40dip">

<ImageView
android:id="@+id/voice_shengyin"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:src="@drawable/rc_ic_volume_1"/>

<com.chen.voicedemo.MyChronometer
android:id="@+id/mychronometer"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_gravity="center_horizontal"
android:textColor="@android:color/white"/>

</LinearLayout>
</RelativeLayout>

8、还有一个动画布局，播放声音的时候，有个动画效果

<?xml version="1.0" encoding="utf-8"?>
<animation-list xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/volume_animation"
android:oneshot="false" >

<item
android:drawable="@drawable/rc_ic_voice_receive_play1"
android:duration="100"/>
<item
android:drawable="@drawable/rc_ic_voice_receive_play2"
android:duration="200"/>
<item
android:drawable="@drawable/rc_ic_voice_receive_play3"
android:duration="300"/>

</animation-list>

附录：用到的图片资源说明：如果手上没有这样的图片，可以随便用其他图片代替，有效果，就算成功