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[android] Location fix - correctly save last best location

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Alex Zolotarev 2012-01-07 20:34:05 +03:00 • committed by Alex Zolotarev
parent 3ef1e04f52
commit 6c143bc60d
1 changed files with 13 additions and 7 deletions
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20
android/src/com/mapswithme/maps/location/LocationService.java
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@ -170,7 +170,7 @@ public class LocationService implements LocationListener, SensorEventListener, W
final long timeDelta = newLocation.getTime() - currentBestLocation.getTime();
final boolean isSignificantlyNewer = timeDelta > TWO_MINUTES;
final boolean isSignificantlyOlder = timeDelta < -TWO_MINUTES;
final boolean isNewer = timeDelta >= 0;
final boolean isNewer = timeDelta > 0;
// If it's been more than two minutes since the current location, use the
// new location because the user has likely moved
@ -181,6 +181,14 @@ public class LocationService implements LocationListener, SensorEventListener, W
return false;
}
// Check if the old and new location are from the same provider
final boolean isFromSameProvider = isSameProvider(newLocation.getProvider(),
currentBestLocation.getProvider());
// Situation when last known location is equal to the new one
if (timeDelta == 0 && isFromSameProvider)
return true; // Because new location is at least not too old (< 2mins from now)
// Check whether the new location fix is more or less accurate
final int accuracyDelta = (int) (newLocation.getAccuracy()
- currentBestLocation.getAccuracy());
@ -188,10 +196,6 @@ public class LocationService implements LocationListener, SensorEventListener, W
final boolean isMoreAccurate = accuracyDelta < 0;
final boolean isSignificantlyLessAccurate = accuracyDelta > 200;
// Check if the old and new location are from the same provider
final boolean isFromSameProvider = isSameProvider(newLocation.getProvider(),
currentBestLocation.getProvider());
// Determine location quality using a combination of timeliness and accuracy
if (isMoreAccurate)
return true;
@ -213,6 +217,8 @@ public class LocationService implements LocationListener, SensorEventListener, W
// *************** Notification Handlers ******************
private final static float HUNDRED_METRES = 100.0f;
//@Override
public void onLocationChanged(Location l)
{
@ -228,12 +234,12 @@ public class LocationService implements LocationListener, SensorEventListener, W
if (m_sensorManager != null)
{
// Recreate magneticField if location has changed significantly
if (m_lastLocation != null && (m_lastLocation == null || l.getTime() - m_lastLocation.getTime() > TWO_MINUTES))
if (m_lastLocation == null || l.distanceTo(m_lastLocation) > HUNDRED_METRES)
m_magneticField = new GeomagneticField((float)l.getLatitude(), (float)l.getLongitude(), (float)l.getAltitude(), l.getTime());
}
notifyLocationUpdated(l.getTime(), l.getLatitude(), l.getLongitude(), l.getAccuracy());
m_lastLocation = l;
}
m_lastLocation = l;
}
//@Override