技术回顾：Android 如何在Service获取最佳坐标以及发送短信到指定的手机

1.在功能清单中添加对应的权限

---短信读写权限

    <uses-permission android:name="android.permission.SEND_SMS" />

    <uses-permission android:name="android.permission.READ_SMS" />

    <uses-permission android:name="android.permission.RECEIVE_SMS" />

---获取位置的权限

    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" /><!-- 获取准确GPS坐标的权限 -->

    <uses-permission android:name="android.permission.ACCESS_MOCK_LOCATION" /><!-- 允许模拟器模拟位置的权限 -->

     <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" /><!-- 获取粗略坐标的位置权限（网络定位时使用） -->

2.在功能清单中添加Service

  <service android:name="com.smartdot.mobilesafe.service.LocationService"/>

3.Java代码

package com.smartdot.mobilesafe.service;

import android.app.Service;

import android.content.Intent;

import android.location.Criteria;

import android.location.Location;

import android.location.LocationListener;

import android.location.LocationManager;

import android.os.Bundle;

import android.os.IBinder;

import android.telephony.SmsManager;

/**

 * 继承Service类，实现LocationListener用于获取坐标信息。

 * @author wangguang

 *

public class LocationService extends Service implements LocationListener{

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

@Override
public void onCreate() {
// TODO Auto-generated method stub
super.onCreate();
//获取未知管理对象
LocationManager locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);
//以最优的方式或的经纬度对象
Criteria criteria = new Criteria();
criteria.setAltitudeRequired(false);//不要求海拔信息 
criteria.setBearingRequired(false);//不要求方位信息 
criteria.setCostAllowed(true);//是否允许付费 
criteria.setPowerRequirement(Criteria.POWER_LOW);//对电量的要求
criteria.setAccuracy(Criteria.ACCURACY_FINE);//指定获取经纬度的精确度
String bestProvider = locationManager.getBestProvider(criteria, true);
//在一定时间间隔获取经纬度坐标，
locationManager.requestLocationUpdates(bestProvider, 0, 0, this);

}

@Override
public int onStartCommand(Intent intent, int flags, int startId) {
// TODO Auto-generated method stub
return super.onStartCommand(intent, flags, startId);
}

@Override
public void onDestroy() {
// TODO Auto-generated method stub
super.onDestroy();
}

@Override
public void onLocationChanged(Location location) {
SmsManager sms = SmsManager.getDefault();
double longitude = location.getLongitude();//精度
double latitude = location.getLatitude();//纬度
sms.sendTextMessage("5556", null, "longitude=" + longitude + ",latitude=" + longitude, null,null);

}

@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
// TODO Auto-generated method stub

}

@Override
public void onProviderEnabled(String provider) {
// TODO Auto-generated method stub

}

@Override
public void onProviderDisabled(String provider) {
// TODO Auto-generated method stub

}

}