LockClock: Ignore "inaccurate" locations

- Location manager can report locations for any level of accuracy.  Filter
  locations that are generally not useful.
- Set location accuracy threshold to 50km.

Change-Id: I225ed4e74edec6c5089d886c61f8d78f09b11b34

1 files changed, 6 insertions, 0 deletions

diff --git a/src/com/cyanogenmod/lockclock/weather/WeatherUpdateService.java b/src/com/cyanogenmod/lockclock/weather/WeatherUpdateService.java
index 662bab4..a228ec7 100644
--- a/src/com/cyanogenmod/lockclock/weather/WeatherUpdateService.java
+++ b/src/com/cyanogenmod/lockclock/weather/WeatherUpdateService.java
@@ -58,6 +58,7 @@ public class WeatherUpdateService extends Service {
 
     private static final long LOCATION_REQUEST_TIMEOUT = 5L * 60L * 1000L; // request for at most 5 minutes
     private static final long OUTDATED_LOCATION_THRESHOLD_MILLIS = 10L * 60L * 1000L; // 10 minutes
+    private static final float LOCATION_ACCURACY_THRESHOLD_METERS = 50000;
 
     private WeatherUpdateTask mTask;
 
@@ -169,6 +170,11 @@ public class WeatherUpdateService extends Service {
             Location location = lm.getLastKnownLocation(LocationManager.PASSIVE_PROVIDER);
             if (D) Log.v(TAG, "Current location is " + location);
 
+            if (location != null && location.getAccuracy() > LOCATION_ACCURACY_THRESHOLD_METERS) {
+                if (D) Log.d(TAG, "Ignoring inaccurate location");
+                location = null;
+            }
+
             // If lastKnownLocation is not present (because none of the apps in the
             // device has requested the current location to the system yet) or outdated,
             // then try to get the current location use the provider that best matches the criteria.