import android.location.Location;
class CuhkLocation extends Location{
private static final double latitude = 22.419005;
private static final double longitude = 114.206904;
public static final double CUHK_RANGE = 1000;
public static final double CUHK_CLOSE_RANGE = 5000;
public static final int INSIDE = 1;
public static final int CLOSE = 2;
public static final int FAR = 3;
private static CuhkLocation cuhkLocation = null;
public static CuhkLocation getInstance(){
if(cuhkLocation==null)
cuhkLocation = new CuhkLocation();
return cuhkLocation;
}
private CuhkLocation() {
super("CUBT");
this.setLatitude(latitude);
this.setLongitude(longitude);
}
public int getDistanceDescriptionTo(Location location){
double distance = this.distanceTo(location);
if(distance < CUHK_RANGE)
return INSIDE;
if(distance < CUHK_CLOSE_RANGE)
return CLOSE;
else
return FAR;
}
}