Привет, я разрабатываю приложение, чтобы найти лучшее место и отправить его на номер. его работа отлично работает с сетевым местоположением, но когда я хочу найти с помощью класса GPS или Criteria, он становится принудительно закрытым !! это так мило с вашей стороны, чтобы помочь мне TNX.

package ir.M410.toolkit;

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;
import android.util.Log;



public class LocationFinder extends Service implements LocationListener{

double lat ,lon ;
@Override
public IBinder onBind(Intent arg0) {
    return null;
       }

@Override
public int onStartCommand(Intent intent, int flags, int startId) {
    // We want this service to continue running until it is explicitly
    // stopped, so return sticky.


    LocationManager mlocationManager = (LocationManager)        getSystemService(LOCATION_SERVICE);
    Criteria criteria = new Criteria();
    criteria.setAccuracy(Criteria.ACCURACY_FINE);
    criteria.setPowerRequirement(Criteria.POWER_MEDIUM);
    String locationprovider = mlocationManager.getBestProvider(criteria, true);
    Location mlocation = mlocationManager.getLastKnownLocation(locationprovider);


      lat = mlocation.getLatitude ();
      lon = mlocation.getLongitude ();

      Log.i("Geo_Location", "Latitude: " + lat + ", Longitude: " + lon);

      SmsManager sms = SmsManager.getDefault();
        sms.sendTextMessage("+11231233213", null,"https://maps.google.com/maps?q="+lat+","+lon, null, null);



        //  SmsManager sms = SmsManager.getDefault();
    //sms.sendTextMessage(MainActivity.senderNum, null,"  "+"lat:"+lat+"  "+"lon:"+lon, null, null);
 //stopSelf();
          return START_NOT_STICKY;
}

@Override
public void onLocationChanged(Location location) {
    // TODO Auto-generated method stub

     lat= location.getLatitude();
    lon =location.getLongitude();

    Log.i("Geo_Location", "Latitude: " + lat + ", Longitude: " + lon);
  //  stopSelf();
}

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

}

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

}

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

}


@Override
public void onDestroy() {
    super.onDestroy();

}
}

и это мой манифест

[Отредактировано] и вот определение LogCat:

10-14 19:58:37.823: E/AndroidRuntime(2685): FATAL EXCEPTION: main
10-14 19:58:37.823: E/AndroidRuntime(2685): java.lang.RuntimeException: Unable to start service ir.M410.toolkit.LocationFinder@4482e4a8 with Intent { cmp=ir.M410.toolkit/.LocationFinder }: java.lang.NullPointerException
10-14 19:58:37.823: E/AndroidRuntime(2685):     at android.app.ActivityThread.handleServiceArgs(ActivityThread.java:3260)
10-14 19:58:37.823: E/AndroidRuntime(2685):     at android.app.ActivityThread.access$3600(ActivityThread.java:135)
10-14 19:58:37.823: E/AndroidRuntime(2685):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2205)
10-14 19:58:37.823: E/AndroidRuntime(2685):     at android.os.Handler.dispatchMessage(Handler.java:99)
10-14 19:58:37.823: E/AndroidRuntime(2685):     at android.os.Looper.loop(Looper.java:143)
10-14 19:58:37.823: E/AndroidRuntime(2685):     at android.app.ActivityThread.main(ActivityThread.java:4914)
10-14 19:58:37.823: E/AndroidRuntime(2685):     at java.lang.reflect.Method.invokeNative(Native Method)
10-14 19:58:37.823: E/AndroidRuntime(2685):     at java.lang.reflect.Method.invoke(Method.java:521)
10-14 19:58:37.823: E/AndroidRuntime(2685):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:858)
10-14 19:58:37.823: E/AndroidRuntime(2685):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
10-14 19:58:37.823: E/AndroidRuntime(2685):     at dalvik.system.NativeStart.main(Native Method)
10-14 19:58:37.823: E/AndroidRuntime(2685): Caused by: java.lang.NullPointerException
10-14 19:58:37.823: E/AndroidRuntime(2685):     at ir.M410.toolkit.LocationFinder.onStartCommand(LocationFinder.java:38)
10-14 19:58:37.823: E/AndroidRuntime(2685):     at android.app.ActivityThread.handleServiceArgs(ActivityThread.java:3246)
10-14 19:58:37.823: E/AndroidRuntime(2685):     ... 10 more

[Отредактированный] код для проверки, чтобы не быть нулевым:

@Override
public int onStartCommand(Intent intent, int flags, int startId) {
    // We want this service to continue running until it is explicitly
    // stopped, so return sticky.


    LocationManager mlocationManager = (LocationManager) getSystemService(LOCATION_SERVICE);
    Criteria criteria = new Criteria();
    criteria.setAccuracy(Criteria.ACCURACY_FINE);
    criteria.setPowerRequirement(Criteria.POWER_MEDIUM);
    String locationprovider = mlocationManager.getBestProvider(criteria, true);
    if(mlocationManager.getLastKnownLocation(locationprovider)!=null){
    Location mlocation = mlocationManager.getLastKnownLocation(locationprovider);


      lat = mlocation.getLatitude ();
      lon = mlocation.getLongitude ();

      Log.i("Geo_Location", "Latitude: " + lat + ", Longitude: " + lon);

      SmsManager sms = SmsManager.getDefault();
        sms.sendTextMessage("+11231233213", null,"https://maps.google.com/maps?q="+lat+","+lon, null, null);

    }

и это нормально и не получить силу близко, но никакие данные не получили его всегда является нулевым !!