AndroidLocalSearcher.java :  » UnTagged » android-helper » edu » luc » android » Android Open Source

// Copyright (c) 2009, Philip Tucker
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//     * Redistributions of source code must retain the above copyright
//       notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above copyright
//       notice, this list of conditions and the following disclaimer in the
//       documentation and/or other materials provided with the distribution.
//     * Neither the name of the <organization> nor the
//       names of its contributors may be used to endorse or promote products
//       derived from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY Philip Tucker 'AS IS' AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL Philip Tucker BE LIABLE FOR ANY
// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package edu.luc.android;

import java.util.List;

import android.location.Address;
import android.location.Geocoder;
import android.os.Handler;
import android.os.Message;

import com.google.android.maps.GeoPoint;

/**
 * This doesn't work very well. Prefer GoogleLocalSearcher.
 * 
 * @see GoogleLocalSearcher
 */
public class AndroidLocalSearcher implements LocalSearcher {
  private final Geocoder geocoder;
  private final MyMapView mapView;

  public AndroidLocalSearcher(Geocoder geocoder, MyMapView mapView) {
    this.geocoder = geocoder;
    this.mapView = mapView;
  }

  @Override
  public void search(String query, boolean bounded, Handler handler)
      throws Exception {
    Message msg = Message.obtain(handler);
    msg.obj = search(query, bounded);
    handler.sendMessage(msg);
  }

  @Override
  public List<Address> search(String query, boolean bounded) throws Exception {
    if (bounded) {
      GeoPoint lowerLeft = mapView.getLowerLeft();
      GeoPoint upperRight = mapView.getUpperRight();
      double lowerLeftLat = (double) lowerLeft.getLatitudeE6() / Geo.E6;
      double lowerLeftLon = (double) lowerLeft.getLongitudeE6() / Geo.E6;
      double upperRightLat = (double) upperRight.getLatitudeE6() / Geo.E6;
      double upperRightLon = (double) upperRight.getLongitudeE6() / Geo.E6;
      return geocoder.getFromLocationName(query, 4, lowerLeftLat, lowerLeftLon,
              upperRightLat, upperRightLon);
    }
    return geocoder.getFromLocationName(query, 4);
  }
}