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 <[email protected]>
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 <[email protected]> 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 <[email protected]> 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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