1.首先是一个主要的服务类，service

package com.create.wxb;

import java.util.List;

import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.media.AudioManager;
import android.os.IBinder;
import android.preference.PreferenceManager;
import android.telephony.PhoneStateListener;
import android.telephony.TelephonyManager;

public class TurnSilentService extends Service {

private TelephonyManager telephonyMgr;
private SensorManager sensorMgr;
private AudioManager audioMgr;
private SensorEventListener sensorListener;
private PhoneCallListener phoneListener;
private boolean ringing = false;

@Override
public IBinder onBind(Intent arg0) {
// TODO Auto-generated method stub
return null;
}

@Override
public void onCreate() {
// TODO Auto-generated method stub
super.onCreate();
Sensor orientation = null;
SharedPreferences settings = PreferenceManager.getDefaultSharedPreferences(this);
telephonyMgr = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
sensorMgr = (SensorManager)this.getSystemService(SENSOR_SERVICE);
audioMgr = (AudioManager)this.getSystemService(AUDIO_SERVICE);
phoneListener = new PhoneCallListener();
telephonyMgr.listen(phoneListener, PhoneCallListener.LISTEN_CALL_STATE);
sensorListener = new SensorListener();
List sensorList = sensorMgr.getSensorList(Sensor.TYPE_ALL);
int size = sensorList.size();
for (int i = 0; i int type = sensorList.get(i).getType();
if (type == Sensor.TYPE_ACCELEROMETER) {
orientation = sensorList.get(i);
break;
}
}
if (orientation != null) {
sensorMgr.registerListener(sensorListener,orientation, SensorManager.SENSOR_DELAY_NORMAL);
} else {
stopSelf();
}
}

@Override
public void onDestroy() {
// TODO Auto-generated method stub
super.onDestroy();
telephonyMgr.listen(phoneListener, 0);
sensorMgr.unregisterListener(sensorListener);
}


private class PhoneCallListener extends PhoneStateListener{
@Override
public void onCallStateChanged(int state, String incomingNumber){
switch (state) {
case TelephonyManager.CALL_STATE_IDLE://电话处于待机状态
ringing = false;
break;
case TelephonyManager.CALL_STATE_OFFHOOK://电话通话中
ringing = false;
break;
case TelephonyManager.CALL_STATE_RINGING://有电话来电
ringing = true;
break;
}
super.onCallStateChanged(state, incomingNumber);
}
}