一条短信就可以获取被盗手机的GPS位置（PhoneFinder）

本文链接：https://blog.youkuaiyun.com/yhb5566/article/details/6506304

本文介绍了一个名为 PhoneFinder 的应用实例，该应用可以通过短信获取被盗手机的 GPS 位置。作者详细展示了 MainActivity 和 FinderReceiver 类的代码实现，包括密码验证、MD5 加密以及短信接收和响应部分。尽管在模拟器中无法测试 GPS 功能，但在真机上应该可以正常工作。这是一个将短信与定位服务结合的示例，适用于 Android 平台。

哎，忙了一中午就搞了一个小实例，发现自己的效率还有待提高，不过，虽说是一个小实例，让我对短信这块掌握了许多！

先贴代码：(必要的解释都在注释中，不懂得可以留言)！

MainActivity：PhoneFinder.java

Code:

package com.android.yhb;
import java.math.BigInteger;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import android.app.Activity;
import android.content.SharedPreferences.Editor;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
public class PhoneFinder extends Activity {
private EditText edit01;
private EditText edit02;
private Button button_ok;
private TextView textview;
static final String PASSWORD_PREF_KEY = "passwd";
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
edit01 = (EditText)findViewById(R.id.password);
edit02 = (EditText)findViewById(R.id.password_confirm);
textview = (TextView)findViewById(R.id.text1);
button_ok = (Button)findViewById(R.id.ok);
button_ok.setOnClickListener(listener);
/*SharedPreferences setting = getSharedPreferences(PASSWORD_PREF_KEY, 0);
String t1 = setting.getString("PASSWORD", null);
edit01.setText(t1);
edit02.setText(t1);*/
}
OnClickListener listener = new OnClickListener() {
public void onClick(View v) {
String p1 = edit01.getText().toString();
String p2 = edit02.getText().toString();
if(p1.equals(p2)) {
if(p1.length() >= 6 && p2.length() >= 6) {
Editor edit = getSharedPreferences(PASSWORD_PREF_KEY, MODE_PRIVATE).edit();
String md5hash = getMd5Hash(p1);
edit.putString("PASSWORD", md5hash);
edit.commit();
textview.setText("password updated");
} else {
textview.setText("password must be at least 6 characters");
}
} else {
edit01.setText("");
edit02.setText("");
textview.setText("password do not match");
}
}
};
//这里是MD5的加密方法
public static String getMd5Hash(String input) {
try {
MessageDigest md = MessageDigest.getInstance("MD5");
byte[] messageDigest = md.digest(input.getBytes());
BigInteger number = new BigInteger(1,messageDigest);
String md5 = number.toString(16);
while (md5.length() < 32)
md5 = "0" + md5;
return md5;
} catch(NoSuchAlgorithmException e) {
Log.e("MD5", e.getMessage());
return null;
}
}
}

FinderReceiver.java

Code:

package com.android.yhb;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.location.Location;
import android.location.LocationManager;
import android.os.Bundle;
import android.telephony.gsm.SmsManager;
import android.telephony.gsm.SmsMessage;
public class FinderReceiver extends BroadcastReceiver {
Context context;
@Override
public void onReceive(Context context, Intent intent) {
this.context = context;
SharedPreferences passwdfile = context.getSharedPreferences(
PhoneFinder.PASSWORD_PREF_KEY, 0);
String correctMd5 = passwdfile.getString(PhoneFinder.PASSWORD_PREF_KEY,
null);
if (correctMd5 != null) {
/*SmsMessage[] messages = Telephony.Sms.Intents
.getMessagesFromIntent(intent);*/
Bundle bundle = intent.getExtras();
Object pdus[] = (Object[]) bundle.get("pdus");//SMS消息的byte[]存储在pdus中
SmsMessage smsMessage[] = new SmsMessage[pdus.length];
//for (SmsMessage msg : smsMessage) {
for(int i = 0; i < smsMessage.length; i++) {
smsMessage[i] = SmsMessage.createFromPdu((byte[])pdus[i]);
if (smsMessage[i].getMessageBody().contains("SMSLOCATE:")) {
String[] tokens = smsMessage[i].getMessageBody().split(":");
if (tokens.length >= 2) {
String md5hash = PhoneFinder.getMd5Hash(tokens[1]);
if (md5hash.equals(correctMd5)) {
String to = smsMessage[i].getOriginatingAddress();//以字符串的形式返回发送者(sender)的原始地址
SmsManager sm = SmsManager.getDefault();
/*LocationManager lm =
(LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
SmsManager sm = SmsManager.getDefault();
Location location = lm.getLastKnownLocation(LocationManager.GPS_PROVIDER);
double latitude = location.getLatitude(); //经度
double longitude = location.getLongitude(); //纬度
double altitude = location.getAltitude(); //海拔
sm.sendTextMessage(to, null, "经度：" + String.valueOf(latitude) + "纬度：" + String.valueOf(longitude) + "海拔：" + String.valueOf(altitude),
null, null); */
sm.sendTextMessage(to, null, "成功了！", null, null);
NotificationManager nm =
(NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
Notification notification = new Notification(android.R.drawable.ic_dialog_info, "您的地理位置", System.currentTimeMillis());
PendingIntent contentIntent = PendingIntent.getActivity(context, 0, new Intent(context, PhoneFinder.class), 0);
notification.setLatestEventInfo(context, "GPS地址", "你已经被发现了，赶紧把手机还给我，不然我就报警！", contentIntent);
nm.notify(R.string.service_start, notification);
}
}
} }
//}
}
}
}