Andorid 实例源码:音频录制

package org.crazyit.sound;

import java.io.File;

import android.app.Activity;
import android.media.MediaRecorder;
import android.os.Bundle;
import android.os.Environment;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ImageButton;
import android.widget.Toast;

/**
* Description:
* <br/>site: <a href="http://www.crazyit.org">crazyit.org</a>
* <br/>Copyright (C), 2001-2014, Yeeku.H.Lee
* <br/>This program is protected by copyright laws.
* <br/>Program Name:
* <br/>Date:
* @author Yeeku.H.Lee kongyeeku@163.com
* @version 1.0
*/
public class RecordSound extends Activity
implements OnClickListener
{
// 定义界面上的两个按钮
ImageButton record, stop;
// 系统的音频文件
File soundFile;
MediaRecorder mRecorder;

@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
// 获取程序界面中的两个按钮
record = (ImageButton) findViewById(R.id.record);
stop = (ImageButton) findViewById(R.id.stop);
// 为两个按钮的单击事件绑定监听器
record.setOnClickListener(this);
stop.setOnClickListener(this);
}

@Override
public void onDestroy()
{
if (soundFile != null && soundFile.exists())
{
// 停止录音
mRecorder.stop();
// 释放资源
mRecorder.release();
mRecorder = null;
}
super.onDestroy();
}

@Override
public void onClick(View source)
{
switch (source.getId())
{
// 单击录音按钮
case R.id.record:
if (!Environment.getExternalStorageState().equals(
android.os.Environment.MEDIA_MOUNTED))
{
Toast.makeText(RecordSound.this, "SD卡不存在，请插入SD卡！",
Toast.LENGTH_SHORT).show();
return;
}
try
{
// 创建保存录音的音频文件
soundFile = new File(Environment
.getExternalStorageDirectory().getCanonicalFile()
+ "/sound.amr");
mRecorder = new MediaRecorder();
// 设置录音的声音来源
mRecorder.setAudioSource(MediaRecorder
.AudioSource.MIC);
// 设置录制的声音的输出格式（必须在设置声音编码格式之前设置）
mRecorder.setOutputFormat(MediaRecorder
.OutputFormat.THREE_GPP);
// 设置声音编码的格式
mRecorder.setAudioEncoder(MediaRecorder
.AudioEncoder.AMR_NB);
mRecorder.setOutputFile(soundFile.getAbsolutePath());
mRecorder.prepare();
// 开始录音
mRecorder.start(); //①
}
catch (Exception e)
{
e.printStackTrace();
}
break;
// 单击停止按钮
case R.id.stop:
if (soundFile != null && soundFile.exists())
{
// 停止录音
mRecorder.stop(); //②
// 释放资源
mRecorder.release(); //③
mRecorder = null;
}
break;
}
}
}

源码下载链接: http://pan.baidu.com/s/1sjtJ3uX 密码: 93pt