GPS精度通常指位置误差范围。不同的GPS精度通常对应着不同的误差范围。例如,在开放式空间中使用全球定位系统(GPS)时,最佳的精度可以达到几米范围内的准确性,而在城市环境中,由于建筑物等干扰因素,GPS精度可能会降低,位置误差可能达到数十米。要解决如何获取GPS精度的问题,可以使用代码示例:
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
public class GPSAccuracy implements LocationListener {
private static final int MILLISECONDS_BETWEEN_LOCATION_UPDATES = 1000;
private static final float MINIMUM_DISTANCE_CHANGE_FOR_UPDATES = 1;
private LocationManager locationManager;
private Location lastLocation;
public GPSAccuracy(LocationManager manager) {
locationManager = manager;
}
public boolean start() {
boolean result = false;
try {
locationManager.requestLocationUpdates(
LocationManager.GPS_PROVIDER,
MILLISECONDS_BETWEEN_LOCATION_UPDATES,
MINIMUM_DISTANCE_CHANGE_FOR_UPDATES,
this);
lastLocation = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
result = true;
} catch (SecurityException e) {
e.printStackTrace();
} catch (IllegalArgumentException e) {
e.printStackTrace();
}
return result;
}
public void stop() {
locationManager.removeUpdates(this);
}
public float getAccuracy() {
if (lastLocation != null) {
return lastLocation.getAccuracy();
} else {
return Float.NaN;
}
}
@Override
public void onLocationChanged(Location location) {
lastLocation = location;
}
@Override
public void onStatusChanged(String provider, int status, Bundle extras) {}
@Override
public void onProviderEnabled(String provider) {}
@Override
public void onProviderDisabled(String provider) {}
}
该代码展示了如何使用