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package com.mapbox.mapboxsdk;
import android.location.Location;
import android.support.annotation.Nullable;
import com.mapbox.mapboxsdk.location.LocationSource;
import com.mapbox.services.android.telemetry.location.LocationEngine;
import com.mapbox.services.android.telemetry.location.LocationEngineListener;
class EmptyLocationSource extends LocationSource {
/**
* Activate the location engine which will connect whichever location provider you are using. You'll need to call
* this before requesting user location updates using {@link LocationEngine#requestLocationUpdates()}.
*/
@Override
public void activate() {
// Intentionally left empty
}
/**
* Disconnect the location engine which is useful when you no longer need location updates or requesting the users
* {@link LocationEngine#getLastLocation()}. Before deactivating, you'll need to stop request user location updates
* using {@link LocationEngine#removeLocationUpdates()}.
*/
@Override
public void deactivate() {
// Intentionally left empty
}
/**
* Check if your location provider has been activated/connected. This is mainly used internally but is also useful in
* the rare case when you'd like to know if your location engine is connected or not.
*
* @return boolean true if the location engine has been activated/connected, else false.
*/
@Override
public boolean isConnected() {
return false;
}
/**
* Returns the Last known location is the location provider is connected and location permissions are granted.
*
* @return the last known location
*/
@Override
@Nullable
public Location getLastLocation() {
return null;
}
/**
* Request location updates to the location provider.
*/
@Override
public void requestLocationUpdates() {
// Intentionally left empty
}
/**
* Dismiss ongoing location update to the location provider.
*/
@Override
public void removeLocationUpdates() {
// Intentionally left empty
}
/**
* Invoked when the Location has changed.
*
* @param location the new location
*/
@Override
public void onLocationChanged(Location location) {
// Intentionally left empty
}
/**
* Useful when you'd like to add a location listener to handle location connections and update events. It is important
* to note, that the callback will continue getting called even when your application isn't in the foreground.
* Therefore, it is a good idea to use {@link LocationEngine#removeLocationEngineListener(LocationEngineListener)}
* inside your activities {@code onStop()} method.
*
* @param listener A {@link LocationEngineListener} which you'd like to add to your location engine.
* @since 2.0.0
*/
@Override
public void addLocationEngineListener(LocationEngineListener listener) {
// Intentionally left empty
}
/**
* If you no longer need your {@link LocationEngineListener} to be invoked with every location update, use this
* method to remove it. It's also important to remove your listeners before the activity is destroyed to prevent any
* potential memory leaks.
*
* @param listener the {@link LocationEngineListener} you'd like to remove from this {@link LocationEngine}.
* @return true.
* @since 2.0.0
*/
@Override
public boolean removeLocationEngineListener(LocationEngineListener listener) {
return true;
}
}
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