我想停止我的服务，它完成了任务。但是服务不会停止，我覆盖了onDestroy（），但它不起作用。当服务停止时，它将启动一个新活动。
下面是我的代码

数据服务. java

  package com.remote.synchronizer.haris;

import java.util.ArrayList;
import java.util.List;
import java.util.Timer;
import java.util.TimerTask;

import org.apache.http.NameValuePair;

import android.app.Service;
import android.content.Intent;
import android.database.sqlite.SQLiteDatabase;
import android.os.Handler;
import android.os.IBinder;
import android.util.Log;
import android.widget.Toast;

public class DataService extends Service {

    boolean wifi,edge;
    private Timer timer= new Timer();
    SQLiteDatabase db;
    String un,shop,city,date,order;
    private SQLiteAdapter mySQLiteAdapter;

    @Override
    public void onCreate(){

        super.onCreate();
        mySQLiteAdapter = new SQLiteAdapter(this);
    //  this.stopSelf();
    }

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        final Handler mHandler = new Handler();

        new Thread(new Runnable(){

            @Override
            public void run() {
                Log.e("Service Started", "Successful");
                while(true){
                    try{
                        Thread.sleep(10000);
                        mHandler.post(new Runnable() {

                            @Override
                            public void run() {
                                //Checking network connectivity
                                wifi=NetworkInfo.Wifi(DataService.this);
                                edge=NetworkInfo.EDGE(DataService.this);

                                if(wifi==true||edge==true)
                                {
                                    int count=mySQLiteAdapter.getCCount();
                                    int counter=0;

                                    if(mySQLiteAdapter.getCCount()>0){

                                        while(counter<count){
                                            Log.e("Service Network", "Network is online");

                                            int id=mySQLiteAdapter.getID();

                                            List<NameValuePair> contacts=new ArrayList<NameValuePair>();

                                            contacts=mySQLiteAdapter.getSingleRecord(id);

                                            String url="http://10.0.2.2:3325/Product/Create?"; 

                                            int response = 0;
                                            try 
                                            {   
                                                response = CustomHttpClient.executeHttpPost(url, contacts);

                                                if(response==200){
                                                    mySQLiteAdapter.delete_byID(id);
                                                    Log.e("Data Sent", "Response 200");
                                                    counter++;
                                                }

                                                else{

                                                    Log.e("Service Data", "Faield to upload data" );
                                                }

                                            }
                                            catch (Exception e)
                                            {
                                                Log.e("Data Sending Error", e.toString());
                                                e.printStackTrace();
                                            }
                                        }
                                    }
                                    //
                                    Thread.currentThread().interrupt(); 
                                }
                                else
                                {
                                    Log.e("Service Network", "Network is offline");
                                }
                            }
                        });
                    }
                    catch (InterruptedException e) {
                        Log.e("Data Sending Error", e.toString());
                        e.printStackTrace();
                    }
                }
            }
        }).start();
        return START_STICKY;
    }

    @Override
    public IBinder onBind(Intent arg0) {
        // TODO Auto-generated method stub
        return null;
    }

    @Override
    public void onDestroy() {

        Log.v("SERVICE","Service killed");
        Toast.makeText(this, "Service Destroyed", Toast.LENGTH_SHORT).show();
        //timer.cancel();
        Intent callIntent = new Intent(Intent.ACTION_CALL); 
        callIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 
        callIntent.setClass(this, com.remote.synchronizer.haris.Login.class);
        startActivity(callIntent);
        super.onDestroy();
    }

}

我在某处读到过不要停止服务，Android会自动停止。如果是这样的话，请编辑我的代码，告诉我如何在我的工作完成后开始新的活动。我需要停止计时器吗？然后onstart命令将停止，它将调用onDestroy？如果是的话，我怎么能停止计时器，因为我已经试过了，但没有成功。