OCI4BB Code

/*
 * GPS.java
 *
 * Copyright (C) 2008 by delta_foxtrot@users.sourceforge.net
 * http://gpsavenger.sf.net
 *
 * 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; version 2 of the License
 *
 * 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, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

import javax.microedition.location.*;

class GPS
{
    public double latitude = -999.0;
    public double longitude = -999.0;
    public LocationProvider provider = null;
    public Location location = null;
    public int lastupdate = 0;

    public GPS()
    {
    }

    public void startLocationUpdate()
    {
        try
        {
            provider = LocationProvider.getInstance(null);
            if(provider != null)
                provider.setLocationListener(new GPSListener(), 1, -1, -1);
        } catch (Exception e) {}
    }
    
    public void stopLocationUpdate()
    {
        provider.setLocationListener(null, -1, 0, 0);
        provider.reset();
        provider = null;
    }

    private void newLocation(LocationProvider prov, Location loc)
    {
        provider = prov;
        location = loc;
        QualifiedCoordinates qc = location.getQualifiedCoordinates();
        latitude = qc.getLatitude();
        longitude = qc.getLongitude();
        lastupdate = (int)(System.currentTimeMillis() / 1000);
        synchronized(net.rim.device.api.ui.UiApplication.getEventLock())
        {
            ociApp.theScreen.latlon.setText(""+latitude+", "+longitude);
        }
    }

    private class GPSListener implements LocationListener
    {
        public void locationUpdated(LocationProvider provider, Location location)
        {
            newLocation(provider, location);
        }
    
        public void providerStateChanged(LocationProvider provider, int newState)
        {
            if (newState == provider.OUT_OF_SERVICE)
            {
                startLocationUpdate();
            }
        }
    }
}