Android音频录制MediaRecorder之简易的录音软件实现代码

概述使用MediaRecorder的步骤：1、创建MediaRecorder对象2、调用MediRecorder对象的setAudioSource()方法设置声音的来源，一般传入MediaRecorder.MIC3、调用MediaRecorder对象的setOutputFormat()设置所录制的音频文件的

使用MediaRecorder的步骤：
1、创建MediaRecorder对象
2、调用MediRecorder对象的setAudioSource()方法设置声音的来源，一般传入MediaRecorder.MIC
3、调用MediaRecorder对象的setoutputFormat()设置所录制的音频文件的格式
4、调用MediaRecorder对象的setAudioRncoder()、setAudioEnCodingBitRate(int bitRate)、setAudioSamlingRate(int SamplingRate)设置所录音的编码格式、编码位率、采样率等，
5、调用MediaRecorder对象的setoutputfile(String path)方法设置录制的音频文件的保存位置
6、调用MediaRecoder对象的Prepare()方法准备录制
7、调用MediaRecoder对象的start()方法开始录制
8、调用MediaRecoder对象的stop()方法停止录制，并调用release()方法释放资源

实例：

复制代码 代码如下:
    <uses-permission  androID:name="androID.permission.MOUNT_FORMAT_fileSYstemS"/>
    <uses-permission  androID:name="androID.permission.WRITE_EXTERNAL_STORAGE"/>
    <uses-permission  androID:name="androID.permission.RECORD_AUdio"/>

@L_502_1@ 代码如下:
<relativeLayout xmlns:androID="http://schemas.androID.com/apk/res/androID"
    xmlns:tools="http://schemas.androID.com/tools"
    androID:layout_wIDth="match_parent"
    androID:layout_height="match_parent"
    tools:context=".MainActivity" >

   
    <linearLayout
        androID:ID="@+ID/li1"
        androID:orIEntation="horizontal"
        androID:layout_wIDth="match_parent"
        androID:layout_height="wrap_content">
        <button androID:ID="@+ID/start"
            androID:layout_wIDth="wrap_content"
            androID:layout_height="wrap_content"
            androID:layout_weight="1"
            androID:text="@string/start"/>
         <button androID:ID="@+ID/stop"
            androID:layout_wIDth="wrap_content"
            androID:layout_height="wrap_content"
            androID:layout_weight="1"
            androID:text="@string/stop"/>
    </linearLayout>
    <ListVIEw
        androID:ID="@+ID/List"
        androID:layout_below="@ID/li1"
        androID:layout_wIDth="match_parent"
        androID:layout_height="wrap_content"></ListVIEw>

</relativeLayout>

复制代码 代码如下:
<?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="horizontal" >

    <TextVIEw
        androID:layout_wIDth="wrap_content"
        androID:layout_height="wrap_content"
        androID:ID="@+ID/show_file_name" />

    <button
        androID:ID="@+ID/bt_List_play"
        androID:layout_wIDth="wrap_content"
        androID:layout_height="wrap_content"
        androID:text="@string/play"/>
    <button  androID:ID="@+ID/bt_List_stop"
        androID:layout_wIDth="wrap_content"
        androID:layout_height="wrap_content"
        androID:text="@string/List_stop"/>

</linearLayout>

复制代码 代码如下:
package com.androID.xiong.mediarecordertest;

import java.io.file;
import java.io.IOException;
import java.text.SimpleDateFormat;

import androID.app.Activity;
import androID.app.AlertDialog;
import androID.app.AlertDialog.Builder;
import androID.app.Dialog;
import androID.content.DialogInterface;
import androID.media.MediaPlayer;
import androID.media.MediaRecorder;
import androID.os.Bundle;
import androID.os.Environment;
import androID.vIEw.LayoutInflater;
import androID.vIEw.Menu;
import androID.vIEw.VIEw;
import androID.vIEw.VIEw.OnClickListener;
import androID.vIEw.VIEwGroup;
import androID.Widget.BaseAdapter;
import androID.Widget.button;
import androID.Widget.EditText;
import androID.Widget.ListVIEw;
import androID.Widget.TextVIEw;

public class MainActivity extends Activity implements OnClickListener {

 private button start;
 private button stop;
 private ListVIEw ListVIEw;
 // 录音文件播放
 private MediaPlayer myPlayer;
 // 录音
 private MediaRecorder myRecorder;
 // 音频文件保存地址
 private String path;
 private String paths = path;
 private file savefilePath;
 // 所录音的文件
 String[] Listfile = null;

 ShowRecorderAdpter showRecord;
 AlertDialog aler = null;

 @OverrIDe
 protected voID onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentVIEw(R.layout.activity_main);
  start = (button) findVIEwByID(R.ID.start);
  stop = (button) findVIEwByID(R.ID.stop);
  ListVIEw = (ListVIEw) findVIEwByID(R.ID.List);
  myPlayer = new MediaPlayer();
  myRecorder = new MediaRecorder();
  // 从麦克风源进行录音
  myRecorder.setAudioSource(MediaRecorder.AudioSource.DEFAulT);
  // 设置输出格式
  myRecorder.setoutputFormat(MediaRecorder.OutputFormat.DEFAulT);
  // 设置编码格式
  myRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.DEFAulT);
  showRecord = new ShowRecorderAdpter();
  if (Environment.getExternalStorageState().equals(
    Environment.MEDIA_MOUNTED)) {
   try {
    path = Environment.getExternalStorageDirectory()
      .getCanonicalPath().toString()
      + "/XIONGRECORDERS";
    file files = new file(path);
    if (!files.exists()) {
     files.mkdir();
    }
    Listfile = files.List();
   } catch (IOException e) {
    e.printstacktrace();
   }
  }

  start.setonClickListener(this);
  stop.setonClickListener(this);
  if (Listfile != null) {
   ListVIEw.setAdapter(showRecord);
  }

 }

 @OverrIDe
 public boolean onCreateOptionsMenu(Menu menu) {
  getMenuInflater().inflate(R.menu.main,menu);
  return true;
 }

 class ShowRecorderAdpter extends BaseAdapter {

  @OverrIDe
  public int getCount() {
   return Listfile.length;
  }

  @OverrIDe
  public Object getItem(int arg0) {
   return arg0;
  }

  @OverrIDe
  public long getItemID(int arg0) {
   return arg0;

  }

  @OverrIDe
  public VIEw getVIEw(final int postion,VIEw arg1,VIEwGroup arg2) {
   VIEw vIEws = LayoutInflater.from(MainActivity.this).inflate(
     R.layout.List_show_filerecorder,null);
   TextVIEw filename = (TextVIEw) vIEws
     .findVIEwByID(R.ID.show_file_name);
   button plays = (button) vIEws.findVIEwByID(R.ID.bt_List_play);
   button stop = (button) vIEws.findVIEwByID(R.ID.bt_List_stop);

   filename.setText(Listfile[postion]);
   // 播放录音
   plays.setonClickListener(new OnClickListener() {
    @OverrIDe
    public voID onClick(VIEw arg0) {
     try {
      myPlayer.reset();
      myPlayer.setDataSource(path + "/" + Listfile[postion]);
      if (!myPlayer.isPlaying()) {

       myPlayer.prepare();
       myPlayer.start();
      } else {
       myPlayer.pause();
      }

     } catch (IOException e) {
      e.printstacktrace();
     }
    }
   });
   // 停止播放
   stop.setonClickListener(new OnClickListener() {

    @OverrIDe
    public voID onClick(VIEw arg0) {
     if (myPlayer.isPlaying()) {
      myPlayer.stop();
     }
    }
   });
   return vIEws;
  }

 }

 @OverrIDe
 public voID onClick(VIEw v) {
  switch (v.getID()) {
  case R.ID.start:
   final EditText filename = new EditText(this);
   Builder alerBuIDler = new Builder(this);
   alerBuIDler
     .setTitle("请输入要保存的文件名")
     .setVIEw(filename)
     .setPositivebutton("确定",
       new DialogInterface.OnClickListener() {
        @OverrIDe
        public voID onClick(DialogInterface dialog,
          int which) {
         String text = filename.getText().toString();
         try {
          paths = path
            + "/"
            + text
            + new SimpleDateFormat(
              "yyyyMMddHHmmss").format(System
              .currentTimeMillis())
            + ".amr";
          savefilePath = new file(paths);
          myRecorder.setoutputfile(savefilePath
            .getabsolutePath());
          savefilePath.createNewfile();
          myRecorder.prepare();
          // 开始录音
          myRecorder.start();
          start.setText("正在录音中。。");
          start.setEnabled(false);
          aler.dismiss();
          // 重新读取 文件
          file files = new file(path);
          Listfile = files.List();
          // 刷新ListVIEw
          showRecord.notifyDataSetChanged();
         } catch (Exception e) {
          e.printstacktrace();
         }

        }
       });
   aler = alerBuIDler.create();
   aler.setCanceledOntouchOutsIDe(false);
   aler.show();
   break;
  case R.ID.stop:
   if (savefilePath.exists() && savefilePath != null) {
    myRecorder.stop();
    myRecorder.release();
    // 判断是否保存 如果不保存则删除
    new AlertDialog.Builder(this)
      .setTitle("是否保存该录音")
      .setPositivebutton("确定",null)
      .setNegativebutton("取消",
        new DialogInterface.OnClickListener() {
         @OverrIDe
         public voID onClick(DialogInterface dialog,
           int which) {
          savefilePath.delete();
          // 重新读取 文件
          file files = new file(path);
          Listfile = files.List();
          // 刷新ListVIEw
          showRecord.notifyDataSetChanged();
         }
        }).show();

   }
   start.setText("录音");
   start.setEnabled(true);
  default:
   break;
  }

 }

 @OverrIDe
 protected voID onDestroy() {
  // 释放资源
  if (myPlayer.isPlaying()) {
   myPlayer.stop();
   myPlayer.release();
  }
  myPlayer.release();
  myRecorder.release();
  super.onDestroy();
 }

}

源码下载：http://xiazai.jb51.net/201401/yuanma/MediaRecorderTest(jb51.net).rar

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