Android简单的利用MediaRecorder进行录音的实例代码

package com.ppmeet; 

import java.io.ioexception; 

import android.app.activity; 
import android.graphics.pixelformat; 
import android.media.mediarecorder; 
import android.os.bundle; 
import android.view.view; 
import android.view.view.onclicklistener; 
import android.view.window; 
import android.view.windowmanager; 
import android.widget.button; 

/**
 * class name：testbasicaudio<br>
 * class description：basic record audio demo<br>
 * 
 * @version 1.00 2011/12/01
 * @author codyy)peijiangping
 */ 
public class testbasicaudio extends activity { 
    private button button_start; 
    private button button_stop; 
    private mediarecorder recorder; 

    public void oncreate(bundle savedinstancestate) { 
        super.oncreate(savedinstancestate); 
        getwindow().setformat(pixelformat.translucent);// 让界面横屏 
        requestwindowfeature(window.feature_no_title);// 去掉界面标题 
        getwindow().setflags(windowmanager.layoutparams.flag_fullscreen, 
                windowmanager.layoutparams.flag_fullscreen); 
        // 重新设置界面大小 
        setcontentview(r.layout.main); 
        init(); 
    } 

    private void init() { 
        button_start = (button) this.findviewbyid(r.id.start); 
        button_stop = (button) this.findviewbyid(r.id.stop); 
        button_stop.setonclicklistener(new audiolisterner()); 
        button_start.setonclicklistener(new audiolisterner()); 
    } 

    class audiolisterner implements onclicklistener { 
        @override 
        public void onclick(view v) { 
            if (v == button_start) { 
                initializeaudio(); 
            } 
            if (v == button_stop) { 
                recorder.stop();// 停止刻录 
                // recorder.reset(); // 重新启动mediarecorder. 
                recorder.release(); // 刻录完成一定要释放资源 
                // recorder = null; 
            } 
        } 

        private void initializeaudio() { 
            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. 
            recorder.setoutputfile("/sdcard/peipei.amr"); 
            // 设置录制好的音频文件保存路径 
            try { 
                recorder.prepare();// 准备录制 
                recorder.start();// 开始录制 
            } catch (illegalstateexception e) { 
                e.printstacktrace(); 
            } catch (ioexception e) { 
                e.printstacktrace(); 
            } 

        } 
    } 
} 

androidmainfest.xml

<?xml version="1.0" encoding="utf-8"?> 
<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
    package="com.ppmeet" 
    android:versioncode="1" 
    android:versionname="1.0" > 

    <uses-sdk android:minsdkversion="8" /> 

    <application 
        android:icon="@drawable/ic_launcher" 
        android:label="@string/app_name" > 
        <activity 
            android:name=".testbasicaudio" 
            android:screenorientation="landscape" > 
            <intent-filter > 
                <action android:name="android.intent.action.main" /> 

                <category android:name="android.intent.category.launcher" /> 
            </intent-filter> 
        </activity> 
    </application> 
    <!-- 联网权限 --> 
    <uses-permission android:name="android.permission.internet" /> 
    <!-- 往sdcard写入数据权限 --> 
    <uses-permission android:name="android.permission.write_external_storage" /> 
    <!-- 录音权限 --> 
    <uses-permission android:name="android.permission.record_audio" /> 
    <!-- 在sdcard中创建与删除文件权限 --> 
    <uses-permission android:name="android.permission.mount_unmount_filesystems" /> 

</manifest>