BlackBerry GPS

gistfile1.java

import java.util.Timer;
import java.util.TimerTask;

import javax.microedition.location.Criteria;
import javax.microedition.location.Location;
import javax.microedition.location.LocationListener;
import javax.microedition.location.LocationProvider;
import javax.microedition.location.QualifiedCoordinates;

public class LocationTracker extends TimerTask {
	public final static String LOCATION_URL = "http://<url that you wish to post long/lat to>";

	private Timer timer;
	private double longitude;
	private double latitude;

	public LocationTracker() {
		timer = new Timer();

		try {
			// TODO: update criteria with desired location distances, etc
			LocationProvider.getInstance(new Criteria()).setLocationListener(new MyLocationListener(), 1, 1, 1);
		} catch(Exception e) { System.err.println(e.toString()); }
		
		timer.schedule(this, 0, 10000);
	}

	public void run() {
		HTTPClient.getPage(LOCATION_URL + "?longitude=" + longitude + "&latitude=" + latitude);
	}

	public double getLongitude() {
		return longitude;
	}

	public void setLongitude(double longitude) {
		this.longitude = longitude;
	}

	public double getLatitude() {
		return latitude;
	}

	public void setLatitude(double latitude) {
		this.latitude = latitude;
	}

	private class MyLocationListener implements LocationListener {
		public void locationUpdated(LocationProvider provider, Location location)
		{
			if(location != null && location.isValid())
			{
			    QualifiedCoordinates qc = location.getQualifiedCoordinates();

				try {
					// TODO: not thread safe (assignment should be done at one time)
					LocationTracker.this.longitude = qc.getLongitude();
					LocationTracker.this.latitude = qc.getLatitude();
				} catch(Exception e) { System.err.println("criccomini " + e.toString()); }
			}
			else
			{
			    System.err.println("criccomini location not valid");
			}
		}

		public void providerStateChanged(LocationProvider provider, int newState) {
			// TODO: if provider was disabled, then disable reporting
		}
	}
}