Hi All,
I'm trying to get the location using the
LocationManager.getLastKnownLocation("gps") method and am getting
null. Here is the problem in more detail:
When I start the emulator, I get the following gps errors in LogCat:
10-16 04:15:29.006: ERROR/GpsLocationProvider(52): Could not open GPS
configuration file /etc/gps.conf
10-16 04:15:29.006: ERROR/GpsLocationProvider(52):
java.io.FileNotFoundException: /etc/gps.conf
10-16 04:15:29.006: ERROR/GpsLocationProvider(52): at
org.apache.harmony.luni.platform.OSFileSystem.open(OSFileSystem.java:
227)
10-16 04:15:29.006: ERROR/GpsLocationProvider(52): at
java.io.FileInputStream.<init>(FileInputStream.java:76)
10-16 04:15:29.006: ERROR/GpsLocationProvider(52): at
com.android.internal.location.GpsLocationProvider.<init>(GpsLocationProvider.java:
179)
10-16 04:15:29.006: ERROR/GpsLocationProvider(52): at
com.android.server.LocationManagerService._loadProvidersNoSync(LocationManagerService.java:
356)
10-16 04:15:29.006: ERROR/GpsLocationProvider(52): at
com.android.server.LocationManagerService.loadProvidersNoSync(LocationManagerService.java:
340)
10-16 04:15:29.006: ERROR/GpsLocationProvider(52): at
com.android.server.LocationManagerService.loadProviders(LocationManagerService.java:
333)
10-16 04:15:29.006: ERROR/GpsLocationProvider(52): at
com.android.server.LocationManagerService.<init>(LocationManagerService.java:
447)
10-16 04:15:29.006: ERROR/GpsLocationProvider(52): at
com.android.server.ServerThread.run(SystemServer.java:230)
10-16 04:15:29.017: ERROR/AndroidRuntime(52): Crash logging skipped,
no checkin service
10-16 04:15:29.036: DEBUG/LocationManagerService(52): Found dir /data/
location/gps
10-16 04:15:29.036: DEBUG/LocationManagerService(52): name = gps
10-16 04:15:29.047: DEBUG/GpsLocationProvider(52): enable
10-16 04:15:29.089: DEBUG/GpsLocationProvider(52): GpsEventThread
starting
I checked using "adb shell" and there is no file /etc/gps.conf but
seems that the "gps" provider does get enabled.
I wrote an activity, where the main logic is:
System.out.println("Providers found=" + lmanager.getAllProviders());
System.out.println("GPS Enabled=" +
lmanager.isProviderEnabled(LocationManager.GPS_PROVIDER));
System.out.println("Last Known Location=" +
lmanager.getLastKnownLocation(LocationManager.GPS_PROVIDER));
and have given the permissions for ACCESS_FINE_LOCATION and
ACCESS_MOCK_LOCATION in my manifest.xml
and here is the log when I run the code:
10-16 04:22:33.316: DEBUG/LocationManagerService(52): getAllProviders
10-16 04:22:33.327: INFO/System.out(230): Providers found=[gps]
10-16 04:22:33.336: INFO/System.out(230): GPS Enabled=true
10-16 04:22:33.336: INFO/System.out(230): Last Known Location=null
So, I get "gps" provider and it is enabled, but the last known
location I get is null.
I tried investigating further in the "adb shell" and got this:
# cd /data/location/gps
# ls
nmea
location
properties
# cat location
gps,1193789209,37.42238666666666666666,-122.096535,0,0,0
I am not trying to set my location (the setters for which have been
removed from Android 1.0), but just trying to retrieve it from the GPS
provider, so here I am wondering:
1. Why am I getting null as the location?
2. Say, we were to solve that issue, then would Android read the
location from the /data/location/gps/nmea or /data/location/gps/
location file? and where are we specifying that? Is this all due to
the missing /etc/gps.conf?
Thanks,
Gautam
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