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    <p>You have a global point p that you're overwriting every call to updateList. Since you aren't creating a new point ever, this overwrites the old values. That means every element in your list will always have the most recent values, rather than the value at that time.</p> <p>Also, why are you using class variables everywhere rather than passing parameters to functions? I have a feeling you don't understand Java or references very well.</p> <p>Edit:</p> <p>Here's what your code should look like, with locals used correctly:</p> <pre><code>package com.example.pointkeeper; import java.util.ArrayList; import android.app.Service; import android.content.Context; 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.util public class ServicePointKeeper extends Service implements LocationListener{ private LocationManager lm; ArrayList&lt;Point&gt; pt; private final static long TEMPO_DE_ATUALIZACAO = 1 * 60 * 1000 ; private final static float DISTANCIA_DE_ATUALIZACAO = 1 ; public void setGPS(){ Criteria criteria = new Criteria(); criteria.setAccuracy( Criteria.ACCURACY_FINE ); criteria.setAltitudeRequired(true); String provider = lm.getBestProvider(criteria, true); if ( provider == null ) { Log.d("SistemaGPS.ativar", "Nenhum provedor encontrado."); } else { Log.d("SistemaGPS.ativar", "Provedor utilizado: " + provider); //lm.requestLocationUpdates(LocationManager.GPS_PROVIDER, TEMPO_DE_ATUALIZACAO, DISTANCIA_DE_ATUALIZACAO , this); lm.requestLocationUpdates(provider, TEMPO_DE_ATUALIZACAO, DISTANCIA_DE_ATUALIZACAO , this); } } public void updateList(Location loc){ Point p = new Point(); p.setLatitude(loc.getLatitude()); p.setLongitude(loc.getLongitude()); pt.add(p); } @Override public void onLocationChanged(Location location) { // TODO Auto-generated method stub Toast.makeText(getApplicationContext(), "Lat: " + location.getLatitude() + "Long: " + location.getLongitude(), Toast.LENGTH_LONG).show(); updateList(location); } @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 int onStartCommand(Intent intent, int flags, int startId) { // TODO Auto-generated method stub Toast.makeText(getBaseContext(), "Serviço iniciado", Toast.LENGTH_SHORT).show(); pt = new ArrayList&lt;Point&gt;(); lm = (LocationManager)getSystemService(Context.LOCATION_SERVICE); setGPS(); Toast.makeText(getBaseContext(), "GPS setado", Toast.LENGTH_SHORT).show(); return START_STICKY; } @Override public void onDestroy() { // TODO Auto-generated method stub Toast.makeText(getApplicationContext(), "Serviço parado", Toast.LENGTH_SHORT).show(); Toast.makeText(getApplicationContext(), "Lat: " + latitude + "Long: " + longitude, Toast.LENGTH_SHORT).show(); Intent it = new Intent(getApplicationContext(), ShowPoints.class); it.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); Bundle b = new Bundle(); b.putParcelableArrayList("points", pt); it.putExtras(b); startActivity(it); super.onDestroy(); } @Override public IBinder onBind(Intent intent) { // TODO Auto-generated method stub return null; } </code></pre> <p>}</p>
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    1. USGabe Sechan
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    1. COSo, my global point p, should have the new geolocations, and then update the list, but what im saying is that the point p, always have the same value. where i should use references?
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      1. USWitalo Benicio
    2. CONo, p shouldn't be global at all. It should be local. The fact that p is global is your problem. Loc, latitude, and longitude should also not be globals. Your problem is you don't know when to use a global and when to use a local, and how the choice effects references.
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      1. USGabe Sechan
    3. COCheck my edited comment for what your code should look like- loc, p, latitude, and longitude no longer class level variables, and a new point allocated for each update.
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