/*
* Geopaparazzi - Digital field mapping on Android based devices
* Copyright (C) 2010 HydroloGIS (www.hydrologis.com)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package eu.geopaparazzi.library.gps;
import android.location.GpsStatus;
import android.location.LocationListener;
/**
* Listener for GPS.
*
* @author Andrea Antonello (www.hydrologis.com)
*/
public interface GpsManagerListener extends LocationListener {
public void gpsStart();
public void gpsStop();
/**
* Handles gps status changes.
*
* <p>Here the fix can be checked through something like:<br>
*
* <pre>
* switch( event ) {
* case GpsStatus.GPS_EVENT_SATELLITE_STATUS:
* if ((SystemClock.elapsedRealtime() - lastLocationupdateMillis) < (GpsManager.WAITSECONDS * 2000l)) {
* if (!gotFix) {
* gotFix = true;
* }
* } else {
* if (gotFix) {
* gotFix = false;
* }
* }
* break;
* }
* </pre>
*
* <p>where <code>lastLocationupdateMillis</code> should be set in
* the {@link LocationListener#onLocationChanged(android.location.Location)} method
* like:
* <pre>
* lastLocationupdateMillis = SystemClock.elapsedRealtime();
* </pre>
*
* @param event
* @param status
*/
public void onGpsStatusChanged( int event, GpsStatus status );
/**
* Check on available fix and data.
*
* @return <code>true</code> if fix is available and data are valid.
*/
public boolean hasFix();
}