本文实例讲述了Android编程实现通话录音功能的方法。分享给大家供大家参考，具体如下：

因受系统限制，只能录自已麦的声音，录不到对方的声音，可能需要改内核才能实现双向录音；

接通电话和挂断电话时，震动一下；

使用广播接收者实现自启动；

服务代码：

package com.eboy.phoneListener;

import java.io.File;

import android.app.Service;

import android.content.Context;

import android.content.Intent;

import android.media.MediaRecorder;

import android.os.Environment;

import android.os.IBinder;

import android.os.Vibrator;

import android.telephony.PhoneStateListener;

import android.telephony.TelephonyManager;

import android.widget.Toast;

public class phoneService extends Service {

@Override

public IBinder onBind(Intent arg0) {

// TODO Auto-generated method stub

return null;

}

@Override

public void onCreate() {

// TODO Auto-generated method stub

super.onCreate();

TelephonyManager telephonyManager = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);

telephonyManager.listen(new PhoneListener(), PhoneStateListener.LISTEN_CALL_STATE);

}

private final class PhoneListener extends PhoneStateListener{

private MediaRecorder mediaRecorder;

private File file;

private Vibrator vibrator = (Vibrator) getSystemService(VIBRATOR_SERVICE);

@Override

public void onCallStateChanged(int state, String incomingNumber) {

try {

switch (state){

case TelephonyManager.CALL_STATE_RINGING: //来电

break;

case TelephonyManager.CALL_STATE_OFFHOOK: //接通电话

file = new File(Environment.getExternalStorageDirectory(), incomingNumber + System.currentTimeMillis() + ".3gp");

mediaRecorder = new MediaRecorder();

mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);

mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);

mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);

mediaRecorder.setOutputFile(file.getAbsolutePath());

mediaRecorder.prepare();

mediaRecorder.start();

Toast.makeText(getApplicationContext(), "电话已接通，开始录音。", Toast.LENGTH_SHORT).show();

//震动一下

vibrator.vibrate(100);

break;

case TelephonyManager.CALL_STATE_IDLE: //挂断电话

if (mediaRecorder != null){

mediaRecorder.stop();

mediaRecorder.release();

mediaRecorder = null;

Toast.makeText(getApplicationContext(), "电话已挂断，录音停止。", Toast.LENGTH_SHORT).show();

//震动一下

vibrator.vibrate(100);

}

break;

}

}catch (Exception e) {

e.printStackTrace();

}

}

}

}

通过广播接收者实现自启动，代码：

package com.eboy.phoneListener;

import android.content.Context;

import android.content.Intent;

public class BroadcastReceiver extends android.content.BroadcastReceiver {

@Override

public void onReceive(Context arg0, Intent arg1) {

Intent service = new Intent(arg0, phoneService.class);

arg0.startService(service);

}

}

main.xml：

package="com.eboy.phoneListener"

android:versionCode="1"

android:versionName="1.0">

android:icon="@drawable/ic_launcher"

android:theme="@style/AppTheme">

希望本文所述对大家Android程序设计有所帮助。