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package com.mapswithme.maps.location;
import android.content.Context;
import android.location.Location;
import android.location.LocationManager;
import android.os.Build;
import android.os.Bundle;
import com.mapswithme.maps.MWMApplication;
import com.mapswithme.util.ConnectionState;
import com.mapswithme.util.LocationUtils;
import java.util.ArrayList;
import java.util.List;
public class AndroidNativeProvider extends BaseLocationProvider implements android.location.LocationListener
{
private LocationManager mLocationManager;
public AndroidNativeProvider()
{
mLocationManager = (LocationManager) MWMApplication.get().getSystemService(Context.LOCATION_SERVICE);
}
@Override
protected void startUpdates()
{
final List<String> providers = getFilteredProviders();
if (providers.size() == 0)
LocationHelper.INSTANCE.notifyLocationError(LocationHelper.ERROR_DENIED);
else
{
for (final String provider : providers)
mLocationManager.requestLocationUpdates(provider, LOCATION_UPDATE_INTERVAL, 0, this);
LocationHelper.INSTANCE.registerSensorListeners();
// Choose best location from available
final Location newLocation = findBestNotExpiredLocation(providers);
if (isLocationBetterThanLast(newLocation))
LocationHelper.INSTANCE.setLastLocation(newLocation);
else
{
final Location lastLocation = LocationHelper.INSTANCE.getLastLocation();
if (lastLocation != null && !LocationUtils.isExpired(lastLocation, LocationHelper.INSTANCE.getLastLocationTime(),
LocationUtils.LOCATION_EXPIRATION_TIME_MILLIS_SHORT))
LocationHelper.INSTANCE.setLastLocation(lastLocation);
}
}
}
@Override
protected void stopUpdates()
{
mLocationManager.removeUpdates(this);
}
private Location findBestNotExpiredLocation(List<String> providers)
{
Location res = null;
for (final String pr : providers)
{
final Location l = mLocationManager.getLastKnownLocation(pr);
if (l != null && !LocationUtils.isExpired(l, l.getTime(), LocationUtils.LOCATION_EXPIRATION_TIME_MILLIS_SHORT))
{
if (res == null || res.getAccuracy() > l.getAccuracy())
res = l;
}
}
return res;
}
private List<String> getFilteredProviders()
{
final List<String> allProviders = mLocationManager.getProviders(false);
final List<String> acceptedProviders = new ArrayList<>(allProviders.size());
for (final String prov : allProviders)
{
if (LocationManager.PASSIVE_PROVIDER.equals(prov))
continue;
if (!mLocationManager.isProviderEnabled(prov))
{
if (LocationManager.GPS_PROVIDER.equals(prov))
LocationHelper.INSTANCE.notifyLocationError(LocationHelper.ERROR_GPS_OFF);
continue;
}
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.HONEYCOMB &&
LocationManager.NETWORK_PROVIDER.equals(prov) &&
!ConnectionState.isConnected())
continue;
acceptedProviders.add(prov);
}
return acceptedProviders;
}
@Override
public void onLocationChanged(Location l)
{
// Completely ignore locations without lat and lon
if (l.getAccuracy() <= 0.0)
return;
if (isLocationBetterThanLast(l))
{
LocationHelper.INSTANCE.initMagneticField(l);
LocationHelper.INSTANCE.setLastLocation(l);
}
}
@Override
public void onProviderDisabled(String provider)
{
mLogger.d("Disabled location provider: ", provider);
}
@Override
public void onProviderEnabled(String provider)
{
mLogger.d("Enabled location provider: ", provider);
}
@Override
public void onStatusChanged(String provider, int status, Bundle extras)
{
mLogger.d("Status changed for location provider: ", provider, status);
}
}
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