Google Maps Android API v2 creating a new LocationSource
Solution 1
Here is a simple implementation of LocationSource
interface. In my case I'm registering both GPS and Network location providers. As mentioned by @CommonsWare, implementation may very depending on your needs. I would suggest reading official documentation about Location service in order to better understand how to utilize your needs and save some battery power
public class CurrentLocationProvider implements LocationSource, LocationListener
{
private OnLocationChangedListener listener;
private LocationManager locationManager;
public CurrentLocationProvider(Context context)
{
locationManager = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
}
@Override
public void activate(OnLocationChangedListener listener)
{
this.listener = listener;
LocationProvider gpsProvider = locationManager.getProvider(LocationManager.GPS_PROVIDER);
if(gpsProvider != null)
{
locationManager.requestLocationUpdates(gpsProvider.getName(), 0, 10, this);
}
LocationProvider networkProvider = locationManager.getProvider(LocationManager.NETWORK_PROVIDER);;
if(networkProvider != null) {
locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 1000 * 60 * 5, 0, this);
}
}
@Override
public void deactivate()
{
locationManager.removeUpdates(this);
}
@Override
public void onLocationChanged(Location location)
{
if(listener != null)
{
listener.onLocationChanged(location);
}
}
@Override
public void onProviderDisabled(String provider)
{
// TODO Auto-generated method stub
}
@Override
public void onProviderEnabled(String provider)
{
// TODO Auto-generated method stub
}
@Override
public void onStatusChanged(String provider, int status, Bundle extras)
{
// TODO Auto-generated method stub
}
}
And here is how I would use this class:
protected void setUpMap() {
//init routine
.......
this.map.setLocationSource(new CurrentLocationProvider(this));
.......
}
EDIT Please not that this solution is obsolete! You need to use FusedLocationProviderApi in conjunction with GoogleApiClient for tracking current location
Solution 2
Are there any example out there?
There is not much to the interface, and its implementation is very dependent upon your app.
This sample project implements the LocationSource
interface on the main activity:
@Override
public void activate(OnLocationChangedListener listener) {
this.mapLocationListener=listener;
}
@Override
public void deactivate() {
this.mapLocationListener=null;
}
All I do is hold onto the OnLocationChangedListener
that we are handed in activate()
. Then, when you have a location fix that you wish to feed to the map, call onLocationChanged()
on that listener, supplying a Location
object (the same Location
object you might get back from LocationManager
).
Solution 3
Here is the solution using the FusedLocationProviderApi
:
Android: Google Maps location with low battery usage
yidiyidawu
Updated on June 04, 2022Comments
-
yidiyidawu almost 2 years
A
LocationSource
is defined in Google Maps Android API v2.It is used for googlemap as the location provider. By default, the location source is provided by the gps module on the phone.
But now I want to use a another
Location source
, the location data will be sent to android device periodically.I have no idea how to implement this interface. Are there any example out there? Can anyone help me with it? The document did not say anything about it.