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Gmane

From: Kristopher Micinski <krismicinski <at> gmail.com>
Subject: Re: Re: Can GPS work without internet access in Android phone?
Newsgroups: gmane.comp.handhelds.android.devel
Date: Monday 31st October 2011 10:55:56 UTC (over 7 years ago)
And you were also outside during these 15 minutes?

Kris

On Mon, Oct 31, 2011 at 1:01 AM, Kenneth WON  wrote:
> Hi, Kristopher,
>
> Thank you for your reply. Yes, I waited it more than 15 minutes. And
> following is my code, I have no idea where's wrong, please feel free
> to have a look, and If you don't mind, please give me some hints Thank
> you!
>
>
> import android.app.Service; import android.content.Intent; import
> android.location.Location; import
> android.location.LocationListener; import
> android.location.LocationManager; import android.os.Binder; import
> android.os.Bundle; import android.os.Handler; import
> android.os.IBinder; import android.util.Log; public class GPSService
> extends Service implements LocationListener {   private Handler
> requestLocUpdateHandler = new Handler();   private LocationManager
> locationMgr;   private static int locUpdateTime = 30000;   // Bind
for
> Service Connection   class GPSServiceBinder extends Binder {
> GPSService getService() {       return GPSService.this;     }  
}   //
> define ACTION   public static final String ACTION = "GPS Service
> Broadcast";   @Override   public void onCreate() {
> super.onCreate();     locationMgr =
> (LocationManager) getSystemService(LOCATION_SERVICE);
> requestLocUpdateHandler.postDelayed(requestLocUpdateTask, 1000);   }
> private void updateLocStatus(Location loc) {     if (loc != null) {
>     double latitude = loc.getLatitude();       double longitude =
> loc.getLongitude();       long locTime = loc.getTime();      
String
> dateTime = Utils.dateFormat.format(locTime);       Log.w("Location
> Info", loc.getAccuracy() + " | " + loc.getProvider());
> Log.w("GPS", "Time: " + dateTime + " | Lat: " + latitude + " | Long: "
> + longitude);     }   }   private Runnable requestLocUpdateTask =
new
> Runnable() {     @Override     public void run() {
> requestLocUpdate();
>
requestLocUpdateHandler.postDelayed(requestLocUpdateTask, locUpdateTime);
>   }   };   private void requestLocUpdate() {
> locationMgr.removeUpdates(this);
> locationMgr.requestLocationUpdates(LocationManager.GPS_PROVIDER, 3000,
> 0, this);   }   @Override   public IBinder onBind(Intent arg0) {
> return new GPSServiceBinder();   }   @Override   public void
> onRebind(Intent intent) {   }   @Override   public boolean
> onUnbind(Intent intent) {     return true;   }   @Override  
public
> void onLocationChanged(Location location) {
> updateLocStatus(location);   }   @Override   public void
> onProviderDisabled(String provider) {   }   @Override   public void
> onProviderEnabled(String provider) {   }   @Override   public void
> onStatusChanged(String provider, int status, Bundle extras) {   }
> @Override   public void onDestroy() {     super.onDestroy();
> locationMgr.removeUpdates(this);   }   @Override   public void
> onStart(Intent intent, int startId) {     super.onStart(intent,
> startId);   } }
> Thanks and Regards, Kenneth Won
>
>
>
> On 10月31日, 上午11時22分, Kristopher Micinski

> wrote:
>> Cold starts can take up to 15 minutes...
>>
>> Did you wait 15 minutes...
>>
>>
>>
>>
>>
>>
>>
>> On Sun, Oct 30, 2011 at 11:17 PM, Kenneth WON 
wrote:
>> > Hi, lbendlin,
>>
>> > Thank you for your reply.
>> > I am really facing this issue.
>> > When I turn off the Network (WiFi and/or cell network), the app cannot
>> > obtain (GPS / A-GPS) position.
>> > Then I turn the network on, it can get the (GPS / A-GPS) position
>> > successfully.
>> > What's wrong?
>>
>> > Thanks and Regards,
>> > Kenneth Won
>>
>> > On 10月31日, 上午8時30分, lbendlin  wrote:
>> >> GPS can work very well without internet access - after it got the
first
>> >> fix.  The internet access is used to download satellite position
data to
>> >> the GPS receiver which speeds up the TTFF (time to first fix).
 Without the
>> >> extra help the first fix can take quite some time, especially when
you are
>> >> already moving.
>>
>> >> Go to a location with unobstructed sky view and let the GPS receiver
get a
>> >> fix. Then check how it performs on subsequent fixes.
>>
>> > --
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>
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