如何用GPS找回丢失手机是所在位置

1.先看下布局的

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="fill_parent"android:layout_height="fill_parent"android:orientation="vertical" ><TextViewandroid:id="@+id/tv"android:layout_width="fill_parent"android:layout_height="wrap_content"/></LinearLayout>

2.活动的实现SIMTestActivity.java

package com.wang;import android.app.Activity;
import android.os.Bundle;
import android.telephony.TelephonyManager;
import android.widget.TextView;public class SIMTestActivity extends Activity {private TelephonyManager telephonyManager;private TextView textView;public void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);//获得电话相关信息的系统服务telephonyManager =(TelephonyManager)getSystemService(TELEPHONY_SERVICE);// 得到SIM卡的信息String info=getInfo(telephonyManager);textView=(TextView)findViewById(R.id.tv);textView.setText(info);}
public static String getInfo(TelephonyManager tm) {StringBuffer sb=new StringBuffer();//获得SIM卡的当前状态sb.append("SIM卡的当前状态是：");if (tm.getSimState()==TelephonyManager.SIM_STATE_READY) {sb.append("正常").append("\n\n");}else if (tm.getSimState()==TelephonyManager.SIM_STATE_ABSENT) {sb.append("N/A:没有SIM卡").append("\n\n");} else {sb.append("N/A:SIM卡状态异常").append("\n\n");}sb.append("SIM卡的编号：");if (tm.getSimSerialNumber()!=null) {sb.append(tm.getSimSerialNumber()).append("\n\n");} else {sb.append("N/A:获取失败").append("\n\n");}//获得SIM卡运营商名称sb.append("SIM卡运营商名称");if (tm.getSimOperatorName().equals("")) {sb.append("N/A:获取失败").append("\n\n");} else {sb.append(tm.getSimOperatorName()).append("\n\n");}//获取SIM卡所属的国家sb.append("SIM卡所属的国家:");if (tm.getSimCountryIso().equals("")) {sb.append("N/A:获取失败").append("\n\n");} else {sb.append(tm.getSimCountryIso()).append("\n\n");}// 获得手机号码sb.append("手机号码：");if (tm.getLine1Number()!=null) {sb.append(tm.getLine1Number()).append("\n\n");} else {sb.append("N/A:获取失败").append("\n\n");}return sb.toString();}
}

3.需要用到的类有Position.java

package com.wang;import java.security.KeyStore.LoadStoreParameter;import android.content.Context;
import android.location.Criteria;
import android.location.Location;
import android.location.LocationManager;public class Position {private static LocationManager locationmanger;private static Location location;private static String relocationProvider;public static String getposition(Context context){Context con = null;locationmanger=(LocationManager)con.getSystemService(con.LOCATION_SERVICE);location =getLocationProvider(locationmanger);if (location!=null) {StringBuffer buffer=new StringBuffer();buffer.append("latitude:");buffer.append(Double.toString(location.getLatitude()));buffer.append(",longitude:");buffer.append(Double.toString(location.getLongitude()));return buffer.toString();} else {return null;}}private static Location getLocationProvider(LocationManager locationmanger2) {Location reLocation=null;Criteria criteria=new Criteria();criteria.setAccuracy(Criteria.ACCURACY_FINE);criteria.setBearingRequired(false);criteria.setPowerRequirement(Criteria.POWER_LOW);relocationProvider=locationmanger.getBestProvider(criteria, true);reLocation=locationmanger.getLastKnownLocation(relocationProvider);return reLocation;}}

4.需要用到的类有：PowerBoot.java调用这个类的时候是在手机卡被换掉是时候

package com.wang;import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.telephony.TelephonyManager;
import android.telephony.SmsManager;public class PowerBoot extends BroadcastReceiver {TelephonyManager telephonyManager;public void onReceive(Context context, Intent intent) {// TODO Auto-generated method stubfinal Context con=context;if (telephonyManager.getSimSerialNumber()!=null) {//预先设置好的SIM卡编码if (telephonyManager.getSimSerialNumber()!="898607c3161047753733") {new Runnable() {public void run() {// TODO Auto-generated method stubString position=Position.getposition(con);SmsManager smsManager=SmsManager.getDefault();//预先设置好自己的电话号码smsManager.sendTextMessage("15290336267", null, "主人你丢失的手机所在的位置是："+position, null, null);//smsManager.sendTextMessage(destinationAddress, scAddress, text, sentIntent, deliveryIntent)}}.run();}}}}

5.需要用到的类有：SMSlistener.java 调用这个类的时候是在手机找不到的时候，会调用这个类

package com.wang;import java.text.SimpleDateFormat;
import java.util.Date;
import com.wang.Position;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.telephony.SmsManager;
import android.telephony.SmsMessage;public class SMSlistener extends BroadcastReceiver {private  static String position;public void onReceive(Context context, Intent intent) {//这个方法一旦返回，android将回收BroadcastReceiverfinal Context con=context;Object[] pdus=(Object[])intent.getExtras().get("puds");if (pdus!=null&&pdus.length>0) {SmsMessage []  messages=new SmsMessage[pdus.length];for (int i = 0; i < pdus.length; i++) {byte[] pdu=(byte[])pdus[i];messages[i]=SmsMessage.createFromPdu(pdu);}for (SmsMessage msg: messages) {final SmsMessage sms=msg;String content =msg.getMessageBody();final String sender=msg.getOriginatingAddress();if (content.startsWith(":getlocation")) {new Runnable() {public void run() {// TODO Auto-generated method stubposition=Position.getposition(con);if (position!=null) {SimpleDateFormat format=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");String sendcontent=format.format(new Date(sms.getTimestampMillis())+" 主人你的手机所在的位置是:"+position);SmsManager smsManager=SmsManager.getDefault();//回复一条短信smsManager.sendTextMessage(sender, null, sendcontent, null, null);}}}.run();}}}}}

6.运行结果如下：

7.感觉这个程序是实用性不大，因为如果手机丢了，返回一个经纬度，虽然可以具体知道什么位置，但是，手机是否找到还真的不好说。