Hi,
You should use the getLastKnownLocation.. It will return the last
location from any of the Location providers..
I have build a Method (Based on some initial code from the Forums) to
get the best and most precise Location (Less than 10meters),
It will look through all Location provides and get the most accurate
Locating with in 5 Minutes, if that do not exists then get the newest
(Normally the Network Location)..
You will need to change the oLog.txt call to Log.v or remove them.. I
have another logging system in my projects.
/
************************************************************************************************************
*
* This is a fast code to get the last known location of the
phone. It will first attempt to get the most
* accurate position the last 5 minutes. If that is not available
then it will get the newest location.
*
*************************************************************************************************************/
private static final int FIVE_MINUTES = 1000 * 60 * 5;
private String[] getLastGoodPos() {
LocationManager lm = (LocationManager)
getSystemService(Context.LOCATION_SERVICE);
List<String> providers = lm.getProviders(true);
Integer iId = -1;
Long lTime = (long) -1;
Long lNow = System.currentTimeMillis();
Float fAccuracy = (float) 10.0;
Location l = null;
// First find the best Accuracy for the last 3 minutes
oLog.txt(5,"In good location last 5 minutes... Getting latest");
for (int i=providers.size()-1; i>=0; i--) {
l = lm.getLastKnownLocation(providers.get(i));
if (l != null) {
oLog.txt(5,"-- last good pos:" + l.toString());
if (l.getTime() > lNow - FIVE_MINUTES &&
l.getAccuracy() <
fAccuracy) {
oLog.txt(5,"- Better accuracy..");
iId = i;
lTime = l.getTime();
fAccuracy = l.getAccuracy();
}
}
}
//If no Location within 5 minutes find the newest one
if (iId == -1) {
oLog.txt(5,"No good location last 5 minutes... Getting latest");
l = null;
for (int i=providers.size()-1; i>=0; i--) {
l = lm.getLastKnownLocation(providers.get(i));
if (l != null) {
oLog.txt(5,"in Get last good pos:" +
l.toString());
if (l.getTime() > lTime) {
oLog.txt(5,"- Newer Location..");
iId = i;
lTime = l.getTime();
fAccuracy = l.getAccuracy();
}
}
}
}
//Now get the best lastKnownLocation
String[] gps = new String[4];
if (iId > -1) {
gps[0] = "" +
lm.getLastKnownLocation(providers.get(iId)).getLatitude();
gps[1] = "" +
lm.getLastKnownLocation(providers.get(iId)).getLongitude();
gps[2] = "" +
lm.getLastKnownLocation(providers.get(iId)).getProvider();
gps[3] = "" +
lm.getLastKnownLocation(providers.get(iId)).getAccuracy();
}
else {
gps[0] = "";
gps[1] = "";
gps[2] = "";
gps[3] = "";
}
return gps;
}
Hope it helps
Kim
On Jun 22, 11:33 am, "Md.Fazla Rabbi OPU" <[email protected]>
wrote:
> Hi all,
>
> I want to develope an app in which--> "When i start the app it will first
> give me Latitude and Longitude of my current location". Here is my code:
>
> * LocationListener locLis=new LocationListener() {
>
> @Override
> public void onStatusChanged(String provider, int status, Bundle extras)
> {}
> @Override
> public void onProviderEnabled(String provider) {}
> @Override
> public void onProviderDisabled(String provider) {}
> @Override
> public void onLocationChanged(Location location)
> {
> // TODO Auto-generated method stub
> Double lat=location.getLatitude();
> Double lon=location.getLongitude();
> Log.i("Latitude=="+lat,"=="+lon);
>
> }
> };
> locationManager = (LocationManager)
> getSystemService(Context.LOCATION_SERVICE);
> locationManager.requestLocationUpdates(
> LocationManager.GPS_PROVIDER,0,0, locLis);*
>
> I use *ACCESS_FINE_LOCATION* in the manifest file.
> But when i start the app there is no latitude and longitude it found. Why?
> If i change the location's latitude longitude from the command prompt then
> it will show the updated latitude and longitude. Please anyone help me
>
> Best Wishes
> Md. Fazla Rabbi
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