Hi, It turns out that the code was fine, it was just the satellite that was wildly unreliable. I realised when I implemented the subclass' onStatusChanged. It was on temporarily unavailable for a long time.
I also realised that given my requestLocationUpdate parameters (5 seconds, 10 meters (I am trying to keep up with a car)), the readings tend to come in in bursts. Ie, nothing for 1-2 minutes then 5 readings in 5 seconds. Google's API makes no attempts to correct the reading given previous data sets right? A kalman filter of some sort. Do we have control over how the API attempts to get the most accurate reading? Ie, disable the location by wifi hotspot stuff? On Sep 8, 1:46 pm, Xster <[email protected]> wrote: > The example shows only gets the last known location. I need to write a > program that actively tracks the user (it's supposed to keep up with a > car). The GPS works fine in Google Maps > > On Sep 8, 1:35 pm, Xster <[email protected]> wrote: > > > > > Hi, > > > The permissions and the settings are correct. I think it crashes if it > > isn't. > > > I changed my function a bit such that the update request has a minimum > > delay of 10 seconds and 10 meters. But I still get no updates. I can > > get the last known location from the location manager so I figured > > that works. Just the LocationListener's methods never gets called > > somehow... > > > On Sep 7, 10:44 am, The Bear <[email protected]> wrote: > > > > Make sure you add the line > > > <permission android:name="android.permission.ACCESS_FINE_LOCATION"></ > > > uses-permission> > > > to your AndroidManifest.xml file and you have enabled GPS satellites > > > on your handset (won't work otherwise). > > > > Then try this: > > > > public class GPSTest extends Activity { > > > private TextView text; > > > private LocationManager manager; > > > private LocationListener listener; > > > > /** Called when the activity is first created. */ > > > @Override > > > public void onCreate(Bundle savedInstanceState) { > > > super.onCreate(savedInstanceState); > > > setContentView(R.layout.main); > > > > text = (TextView)findViewById(R.id.Text); > > > > manager = (LocationManager) getSystemService > > > (Context.LOCATION_SERVICE); > > > Location myLocation = manager.getLastKnownLocation("gps"); > > > > text.setText(("Lat: " + myLocation.getLatitude() > > > + "\nLLong: " + myLocation.getLongitude())); > > > > listener = new MyLocationListener(); > > > manager.requestLocationUpdates("gps" ,10000L, 10.0f, > > > listener); > > > } > > > > private class MyLocationListener implements LocationListener{ > > > > public void onLocationChanged(Location location) { > > > // TODO Auto-generated method stub > > > if (location != null){ > > > text.setText(("Lat: " + location.getLatitude() > > > + "\nLLong: " + location.getLongitude())); > > > } > > > } > > > > public void onProviderDisabled(String provider) { > > > // TODO Auto-generated method stub > > > } > > > > public void onProviderEnabled(String provider) { > > > // TODO Auto-generated method stub > > > } > > > > public void onStatusChanged(String provider, int status, > > > Bundle extras) { > > > // TODO Auto-generated method stub > > > } > > > } > > > > } > > > > On Sep 4, 8:49 am, Xster <[email protected]> wrote: > > > > > Hi, > > > > > I'm trying to start a GPS program and I'm just trying out the first > > > > step to display coordinates as they change. > > > > > I followedhttp://www.devx.com/wireless/Article/39239andusedthe > > > > LocationManager and LocationListener classes. > > > > > Code: > > > > public class GPSTest extends Activity { > > > > /** Called when the activity is first created. */ > > > > > private TextView text; > > > > private LocationManager manager; > > > > private LocationListener listener; > > > > > @Override > > > > public void onCreate(Bundle savedInstanceState) { > > > > super.onCreate(savedInstanceState); > > > > setContentView(R.layout.main); > > > > > text = (TextView) findViewById(R.id.Text); > > > > > manager = (LocationManager) getSystemService > > > > (Context.LOCATION_SERVICE); > > > > listener = new MyLocationListener(); > > > > manager.requestLocationUpdates(LocationManager.GPS_PROVIDER, > > > > 0, 0, listener); > > > > } > > > > > private class MyLocationListener implements LocationListener{ > > > > > public void onLocationChanged(Location location) { > > > > // TODO Auto-generated method stub > > > > if (location != null){ > > > > text.setText(text.getText() + "\n" + > > > > location.getLatitude() + ", " > > > > + location.getLongitude() + " - " + location.getAccuracy()); > > > > } > > > > } > > > > > public void onProviderDisabled(String provider) { > > > > // TODO Auto-generated method stub > > > > > } > > > > > public void onProviderEnabled(String provider) { > > > > // TODO Auto-generated method stub > > > > > } > > > > > public void onStatusChanged(String provider, int > > > > status, Bundle > > > > extras) { > > > > // TODO Auto-generated method stub > > > > > } > > > > > } > > > > > } > > > > > However, once I run the code on the phone, the GPS icon is seen > > > > flashing but nothing happens. The method onLocationChanged is never > > > > reached (according to breakpoints). What am I doing wrong? --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Beginners" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-beginners?hl=en -~----------~----~----~----~------~----~------~--~---
