I'm using the new Google LocationClient to retrieve geo locations. And I need to get speed for each point (location).
What I'm doing now is:
if (mLocationClient == null) {
mLocationClient = new LocationClient(this, mLocationCallback, mLocationCallback);
mLocationCallback.setLocationClient(mLocationClient);
if (!(mLocationClient.isConnected() || mLocationClient.isConnecting())) {
mLocationClient.connect();
}
}
Where mLocationCallback is an instance of
public class LocationCallback implements ConnectionCallbacks,
OnConnectionFailedListener, LocationListener {}
In the function,
@Override
public void onLocationChanged(Location location) {
if (location == null) {
Log.e(TAG, "onLocationChanged: location == null");
return;
}
Log.i(TAG, "Location@ " + location.getLatitude() + ","
+ location.getLongitude() + ", Altitude: "
+ location.getAltitude() + "(" + location.hasAltitude()
+ ")" + " Velocity: " + location.getSpeed() + " m/s("
+ location.hasSpeed() + ")");
}
}
However, everytime location.hasSpeed()
gives false
. It seems that only GPS provider gives speed. I'm sure my GPS is on but it might never be used.
Is there a way to force LocationClient to use GPS provider?
No, because the point of
LocationClient
is for it to blend data from multiple sources (GPS, WiFi, cell towers, sensors, etc.).If you need speed, use
LocationManager
and work with theGPS_PROVIDER
, or anything else theCriteria
says supports speed (e.g., Galileo, someday, maybe).