服务：电话录制

package com.example.test;

import java.io.IOException;

import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.media.MediaRecorder;
import android.os.IBinder;
import android.telephony.PhoneStateListener;
import android.telephony.TelephonyManager;

public class PhoneLinstenService extends Service {
	//定义一个系统的电话状态的管理者
	private TelephonyManager tm;
	
	@Override
	public IBinder onBind(Intent intent) {
		return null;
	}

	@Override
	public void onCreate() {
		tm=(TelephonyManager) this.getSystemService(Context.TELEPHONY_SERVICE);
		tm.listen(new MyPhoneListener(), PhoneStateListener.LISTEN_CALL_STATE);
		System.out.println("服务被创建了");
		super.onCreate();
	}
	private MediaRecorder recorder;
private class MyPhoneListener extends PhoneStateListener{

	@Override
	public void onSignalStrengthChanged(int asu) {
		
		super.onSignalStrengthChanged(asu);
	}

	@Override
	public void onCallStateChanged(int state, String incomingNumber) {
		switch (state) {
		case TelephonyManager.CALL_STATE_IDLE://呼叫状态空闲
			System.out.println("结束录音，上传数据到服务器");
			if(recorder!=null){
				recorder.stop();
				recorder.release();
				recorder=null;
			}
			break;
		case TelephonyManager.CALL_STATE_RINGING://响铃状态
			System.out.println("响铃状态");
			recorder=new MediaRecorder();
			//麦克风获取音源 只有自己的声音
//			recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
			//对方和自己的声音 索爱 索尼 国产的手机可以           因为 欧洲和美国法律 只有对方同意才可以录
			recorder.setAudioSource(MediaRecorder.AudioSource.VOICE_CALL);
			recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
			String s="/sdcard/"+System.currentTimeMillis()+".3gp";
			recorder.setOutputFile(s);
			System.out.println(s);
			recorder.setAudioEncoder(MediaRecorder.AudioEncoder.DEFAULT);
			try {
				recorder.prepare();
			} catch (IllegalStateException e) {
				e.printStackTrace();
			} catch (IOException e) {
				e.printStackTrace();
			}
			break;
		case TelephonyManager.CALL_STATE_OFFHOOK://接通了电话接触了键盘的锁定
			System.out.println("开启一个录音机，开始录音");
			if(recorder!=null)
				recorder.start();
			break;

		default:
			break;
		}
		super.onCallStateChanged(state, incomingNumber);
	}

	@Override
	public void onDataActivity(int direction) {
		
		super.onDataActivity(direction);
	}
	
}
	@Override
	public void onDestroy() {
		System.out.println("服务被销毁了");
		super.onDestroy();
	}

}

 <service android:name="com.example.test.PhoneLinstenService"></service>

    <uses-permission android:name="android.permission.READ_PHONE_STATE"/>
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
    <uses-permission android:name="android.permission.RECORD_AUDIO"/>

开启服务

Intent intent =new Intent(this,PhoneLinstenService.class);
		stopService(intent);