Android Open Source - field-data-app Gps Location

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License

The source code is released under:

MIT License

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Java Source Code

package nz.cri.gns.springs;
//from ww  w  .j a  v a 2s.c  o m
import android.app.Activity;
import android.content.Context;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;

/**
 * Listens for GPS updates from the device, and saves the location
 * coordinates provided by those updates.
 * @author duncanw
 */
public class GpsLocation implements LocationListener {

  private long lastUpdateTimeMillis = 0;
  private Location lastLocation = null;
  
  private boolean gpsDisabled = false;
  
  public GpsLocation(Activity activity) {
        
        LocationManager locationManager = (LocationManager) activity.getSystemService(Context.LOCATION_SERVICE);
        locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, this);
  }

  @Override
  public void onLocationChanged(Location location) {
    
    if (location.getTime() > lastUpdateTimeMillis) {
      lastUpdateTimeMillis = location.getTime();
      lastLocation = location;
    }
  }

  @Override
  public void onProviderDisabled(String provider) {
    if (LocationManager.GPS_PROVIDER.equals(provider)) {
      gpsDisabled = true;
    }
  }

  @Override
  public void onProviderEnabled(String provider) {
    if (LocationManager.GPS_PROVIDER.equals(provider)) {
      gpsDisabled = false;
    }

  }

  @Override
  public void onStatusChanged(String provider, int status, Bundle extras) {

  }
  
  /**
   * @return a Location instance containing the coordinates of the last
   *         known location, or null if no such update has been received yet. 
   */
  public Location getLastLocation() {
    
    return lastLocation;
  }
  
  public boolean isGpsDisabled() {
    return gpsDisabled;
  }

}

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