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();              }          }      }  } 

<?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>