Android简单的利用MediaRecorder进行录音

MediaRecorder可以进行简单的录音，由于操作简单所以可以用来进行基本的录音。

下面提供一个简单的例子，记得在Mainfest文件中添加权限。

代码如下：

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 {@Overridepublic 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>

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