Analysis of Android Mobile Guardian's Mobile Phone Realizing SMS Command to Obtain Location

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Get the location

Create a new package for service

Create a new Service class of GPSService class inheritance system

Register 1 in the manifest file

Override the onCreate () method and call back when the service is created

Override the onDestroy () method and call back when the service is destroyed

Bring the code from the previous section to this place

Get the last position after the user moves, and save it to SP

Convert the standard coordinates to Mars coordinates, put the database file in the assets directory, and put ModifyOffset. java under the service package

Get the ModifyOffset object through the ModifyOffset. getInstance () method, parameter: input stream; Turn the files in the asset directory into an input stream, use getAssets (). open ("filename") to get the InputStream object,

Calling the s2c () method of the ModifyOffset object, converting the standard one into the Chinese one to get the new PointDouble object, parameters: PointDouble object, x, y

Gets the y of the longitude PonitDouble object

Gets the x to the latitude PonitDouble object

Save the location data in SP

Receive instruction and send location short message

Start the service, get the Intent object at the place where the short message is received, and call the startService () method of the Context object

Obtain the location information stored in SP

Send short message, SmsManager. getDefault (). sendTextMessage () method, send short message to security number, parameters: sendTextMessage (target mobile phone, null (source mobile phone does not support), text, sentIntent, deliveryIntent) last two parameters, delay report and delivery report, do not care to fill in null

This permission is required android.permission.SEND_SMS

Judge whether the content under 1 is empty. If it is empty, the content of sending short messages is being obtained. Manually change the coordinates under 1 before being obtained

GPSService.java

package com.qingguow.mobilesafe.service;
import android.app.Service;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.location.Criteria;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.os.IBinder;
public class GPSService extends Service {
private LocationManager lm;
private LocationListener listener;
private SharedPreferences sp;
@Override
public IBinder onBind(Intent arg0) {
return null;
}
//  Service creation 
@Override
public void onCreate() {
super.onCreate();
sp=getSharedPreferences("config", MODE_PRIVATE);
//  Get Location Manager 
lm = (LocationManager) getSystemService(LOCATION_SERVICE);
listener = new MyLocationListener();
Criteria criteria = new Criteria();
criteria.setAccuracy(Criteria.ACCURACY_FINE);
String provider = lm.getBestProvider(criteria, true);
lm.requestLocationUpdates(provider, 0, 0, listener);
}
//  Destruction of services 
@Override
public void onDestroy() {
super.onDestroy();
lm.removeUpdates(listener);
listener=null;
}
private class MyLocationListener implements LocationListener {
@Override
public void onLocationChanged(Location location) {
//  Obtain longitude 
String longitude = "longitude : " + location.getLongitude();
String latitude = "latitude : " + location.getLatitude();
String acc = "accuracy : " + location.getAccuracy();
//  Transform Mars coordinates 
try {
ModifyOffset offset = ModifyOffset.getInstance(getAssets()
.open("axisoffset.dat"));
PointDouble pinit = offset.s2c(new PointDouble(location
.getLongitude(), location.getLatitude()));
longitude = "longitude : " + pinit.x;
latitude = "latitude : " + pinit.y;
} catch (Exception e) {
e.printStackTrace();
}
// Save data 
Editor editor=sp.edit();
editor.putString("lastlocation", longitude+latitude+acc);
editor.commit();
}
@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
}
@Override
public void onProviderEnabled(String provider) {
}
@Override
public void onProviderDisabled(String provider) {
}
}
}

SmsReceiver.java

package com.qingguow.mobilesafe.receiver;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.media.MediaPlayer;
import android.telephony.SmsManager;
import android.telephony.SmsMessage;
import android.text.TextUtils;
import com.qingguow.mobilesafe.R;
import com.qingguow.mobilesafe.service.GPSService;
public class SmsReceiver extends BroadcastReceiver {
private SharedPreferences sp;
@Override
public void onReceive(Context context, Intent intent) {
sp=context.getSharedPreferences("config", Context.MODE_PRIVATE);
// Get the content of SMS 
Object[] objs=(Object[]) intent.getExtras().get("pdus");
for(Object obj:objs){
SmsMessage sms=SmsMessage.createFromPdu((byte[])obj);
String body=sms.getMessageBody();
String sender=sms.getOriginatingAddress();
String secSender=sp.getString("secphone", "");
// SMS judged to be a secure number 
if(secSender.equals(sender)){
switch (body) {
case "#*alarm*#":// Send alarm music 
//Toast.makeText(context, " Play alarm music ", 1).show();
MediaPlayer mp=MediaPlayer.create(context, R.raw.alarm);
mp.start();
abortBroadcast();
break;
case "#*location*#":// Get location information 
Intent intent1=new Intent(context,GPSService.class);
context.startService(intent1);
String lastLocation= sp.getString("lastlocation", "");
// Send a text message 
if(TextUtils.isEmpty(lastLocation)){
SmsManager.getDefault().sendTextMessage(sender, null,"getting location", null, null);
}else{
SmsManager.getDefault().sendTextMessage(sender, null,lastLocation, null, null);
}
System.out.println(" Get a location message "+lastLocation);
abortBroadcast();
break;
default:
break;
}
}
}
}
}

The above is the site to introduce the Android mobile phone guard of the mobile phone to achieve SMS instructions to obtain the location of the relevant content, I hope to help you!