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Diffstat (limited to 'src/net/cbaines/suma/SearchActivity.java')
| -rw-r--r-- | src/net/cbaines/suma/SearchActivity.java | 380 |
1 files changed, 380 insertions, 0 deletions
diff --git a/src/net/cbaines/suma/SearchActivity.java b/src/net/cbaines/suma/SearchActivity.java new file mode 100644 index 0000000..f7f5e55 --- /dev/null +++ b/src/net/cbaines/suma/SearchActivity.java @@ -0,0 +1,380 @@ +/* + * Southampton University Map App + * Copyright (C) 2011 Christopher Baines + * + * 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 2 + * 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, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +package net.cbaines.suma; + +import java.sql.SQLException; +import java.util.ArrayList; +import java.util.Collections; +import java.util.Iterator; +import java.util.List; + +import org.osmdroid.util.GeoPoint; + +import android.app.SearchManager; +import android.content.Context; +import android.content.Intent; +import android.location.Location; +import android.location.LocationListener; +import android.location.LocationManager; +import android.net.Uri; +import android.os.Bundle; +import android.text.Editable; +import android.text.TextWatcher; +import android.util.Log; +import android.view.Gravity; +import android.view.View; +import android.widget.AdapterView; +import android.widget.AdapterView.OnItemClickListener; +import android.widget.AdapterView.OnItemLongClickListener; +import android.widget.EditText; +import android.widget.LinearLayout; +import android.widget.ListView; +import android.widget.ProgressBar; + +import com.j256.ormlite.android.apptools.OrmLiteBaseActivity; +import com.j256.ormlite.dao.Dao; +import com.j256.ormlite.stmt.PreparedQuery; +import com.j256.ormlite.stmt.QueryBuilder; + +public class SearchActivity extends OrmLiteBaseActivity<DatabaseHelper> implements Runnable, TextWatcher, + OnItemClickListener, LocationListener, OnItemLongClickListener { + + final static String TAG = "FindActivity"; + + public static final String ORIGIN = "o"; + public static final int MAP_ACTIVITY = 0; + + private EditText searchBar; + private ListView listItems; + private ProgressBar progBar; + private LinearLayout findContentLayout; + + private String searchTerm = ""; + + private Dao<Building, String> buildingDao; + private Dao<BusStop, String> busStopDao; + private Dao<Site, String> siteDao; + + private POIArrayAdapter adapter; + + private GeoPoint userLocation; + + private Thread searchThread; + + ArrayList<POI> getNearestPOIs(int distance) { + Log.i(TAG, "Getting nearest POI's"); + ArrayList<POI> nearestPOIs = new ArrayList<POI>(); + for (Iterator<Building> buildingDaoIter = buildingDao.iterator(); buildingDaoIter.hasNext();) { + POI poi = buildingDaoIter.next(); + int dist = poi.point.distanceTo(userLocation); + if (dist < distance) { + poi.distTo = dist; + nearestPOIs.add(poi); + } + } + + for (Iterator<BusStop> busStopDaoIter = busStopDao.iterator(); busStopDaoIter.hasNext();) { + POI poi = busStopDaoIter.next(); + int dist = poi.point.distanceTo(userLocation); + if (dist < distance) { + poi.distTo = dist; + nearestPOIs.add(poi); + } + } + + Collections.sort(nearestPOIs, new POIDistanceComparator(userLocation, true)); + + Log.i(TAG, "Got " + nearestPOIs.size() + " nearest POI's"); + return nearestPOIs; + } + + // Search thread + public void run() { + POIArrayAdapter tempAdaptor; + GeoPoint thisUserLocation = userLocation; + + Log.i(TAG, "Search thread started"); + String thisSearchTerm = searchTerm; + + ArrayList<POI> foundPOIsArray = null; + + Log.i(TAG, "Search term length " + thisSearchTerm.length() + " userLocation == null " + + (thisUserLocation == null)); + if (thisSearchTerm.length() == 0 && thisUserLocation != null) { + foundPOIsArray = getNearestPOIs(200); + + } + + if (foundPOIsArray != null && foundPOIsArray.size() != 0) { + + tempAdaptor = new POIArrayAdapter(this, foundPOIsArray); + } else { + + try { + + foundPOIsArray = new ArrayList<POI>(); + + if (thisSearchTerm.length() == 0) { + for (Building building : buildingDao) { + foundPOIsArray.add(building); + } + + if (!thisSearchTerm.equals(searchTerm)) + return; + + for (BusStop busStop : busStopDao) { + foundPOIsArray.add(busStop); + } + + if (!thisSearchTerm.equals(searchTerm)) + return; + + for (Site site : siteDao) { + foundPOIsArray.add(site); + } + + } else { + + QueryBuilder<Building, String> buildingQueryBuilder = buildingDao.queryBuilder(); + buildingQueryBuilder.where().like(Building.ID_FIELD_NAME, "%" + thisSearchTerm + "%").or() + .like(Building.NAME_FIELD_NAME, "%" + thisSearchTerm + "%"); + PreparedQuery<Building> buildingPreparedQuery = buildingQueryBuilder.prepare(); + List<Building> buildings = buildingDao.query(buildingPreparedQuery); + for (Building building : buildings) { + foundPOIsArray.add(building); + } + buildings = null; + + if (!thisSearchTerm.equals(searchTerm)) + return; + + if (thisSearchTerm.contains("site")) { + for (Site site : siteDao) { + foundPOIsArray.add(site); + } + } else { + QueryBuilder<Site, String> siteQueryBuilder = siteDao.queryBuilder(); + siteQueryBuilder.where().like(Site.ID_FIELD_NAME, "%" + thisSearchTerm + "%").or() + .like(Site.NAME_FIELD_NAME, "%" + thisSearchTerm + "%"); + PreparedQuery<Site> sitePreparedQuery = siteQueryBuilder.prepare(); + List<Site> sites = siteDao.query(sitePreparedQuery); + for (Site site : sites) { + foundPOIsArray.add(site); + } + sites = null; + } + + if (!thisSearchTerm.equals(searchTerm)) + return; + + // if (thisSearchTerm.contains("bus")) { + // for (BusStop busStop : busStopDao) { + // foundPOIsArray.add(busStop); + // } + // } else { + QueryBuilder<BusStop, String> busStopQueryBuilder = busStopDao.queryBuilder(); + busStopQueryBuilder.where().like(BusStop.ID_FIELD_NAME, "%" + thisSearchTerm + "%").or() + .like(BusStop.DESCRIPTION_FIELD_NAME, "%" + thisSearchTerm + "%"); + PreparedQuery<BusStop> busStopPreparedQuery = busStopQueryBuilder.prepare(); + List<BusStop> busStops = busStopDao.query(busStopPreparedQuery); + for (BusStop busStop : busStops) { + foundPOIsArray.add(busStop); + } + busStops = null; + // } + + if (!thisSearchTerm.equals(searchTerm)) + return; + + Log.i(TAG, "Found " + foundPOIsArray.size() + " pois"); + + if (thisUserLocation != null) { + Collections.sort(foundPOIsArray, new POIDistanceComparator(userLocation)); + } else { + Collections.sort(foundPOIsArray, new StringDistanceComparator(thisSearchTerm)); + } + + } + + if (!thisSearchTerm.equals(searchTerm)) + return; + + tempAdaptor = new POIArrayAdapter(this, foundPOIsArray); + + } catch (SQLException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + return; + } + } + + if (thisSearchTerm.equals(searchTerm)) { + Log.i(TAG, "Search terms still equal, starting post"); + adapter = tempAdaptor; + listItems.post(new Runnable() { + public void run() { + listItems.setAdapter(adapter); + if (progBar.getVisibility() != View.GONE) { + progBar.setVisibility(View.GONE); + findContentLayout.setGravity(Gravity.TOP); + } + } + }); + } else { + Log.i(TAG, "Search terms no longer equal, exiting"); + } + } + + /** Called when the activity is first created. */ + public void onCreate(Bundle savedInstanceState) { + super.onCreate(savedInstanceState); + setContentView(R.layout.find_activity); + + Log.i(TAG, "FindActivity started"); + + searchBar = (EditText) findViewById(R.id.searchBar); + searchBar.addTextChangedListener(this); + + Intent intent = getIntent(); + if (Intent.ACTION_SEARCH.equals(intent.getAction())) { + String query = intent.getStringExtra(SearchManager.QUERY); + Log.i(TAG, "Searching for " + query); + searchBar.setText(query); + } + + listItems = (ListView) findViewById(R.id.findListItems); + listItems.setOnItemClickListener(this); + listItems.setOnItemLongClickListener(this); + + progBar = (ProgressBar) findViewById(R.id.findLoadBar); + findContentLayout = (LinearLayout) findViewById(R.id.findContentLayout); + + try { + buildingDao = getHelper().getBuildingDao(); + busStopDao = getHelper().getBusStopDao(); + siteDao = getHelper().getSiteDao(); + } catch (SQLException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + } + + // Acquire a reference to the system Location Manager + LocationManager locationManager = (LocationManager) this.getSystemService(Context.LOCATION_SERVICE); + Location lastKnownLocation = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER); + if (lastKnownLocation != null) { + userLocation = Util.locationToGeoPoint(lastKnownLocation); + } else { + lastKnownLocation = locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER); + if (lastKnownLocation != null) { + userLocation = Util.locationToGeoPoint(lastKnownLocation); + + } + } + // Register the listener with the Location Manager to receive location + // updates + locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 10000, 10, this); + try { + locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 10000, 10, this); + } catch (Exception e) { + // Ignore anything that goes wrong here... + } + + searchThread = new Thread(this); + searchThread.start(); + + } + + public void afterTextChanged(Editable s) { + searchTerm = s.toString(); + Log.i(TAG, "Text changed " + searchTerm + " starting search thread"); + new Thread(this).start(); + } + + public void beforeTextChanged(CharSequence s, int start, int count, int after) { + } + + public void onTextChanged(CharSequence s, int start, int before, int count) { + } + + public void onItemClick(AdapterView<?> parent, View view, int position, long id) { + Log.i(TAG, "OnItemClick pos " + position + " id " + id); + + POI poi = adapter.getPOIItem(position); + + Uri uri = Uri.parse("geo:" + Util.E6IntToDouble(poi.point.getLatitudeE6()) + "," + + Util.E6IntToDouble(poi.point.getLongitudeE6()) + "?z=18"); + + Log.i(TAG, "Starting a activity for " + uri); + + Intent mapIntent = new Intent(Intent.ACTION_VIEW, uri); + startActivity(mapIntent); + } + + public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) { + + POI poi = adapter.getPOIItem(position); + + Log.i(TAG, "Long Click Event ID: " + poi.id); + Uri uri = null; + + if (poi.type.equals(POI.BUS_STOP)) { + Log.i(TAG, "Its a bus stop"); + + BusStop busStop = (BusStop) poi; + + uri = Uri.parse("http://id.southampton.ac.uk/bus-stop/" + busStop.id); + + } else if (poi.type.equals(POI.BUILDING)) { + Log.i(TAG, "Its a buildings"); + + Building building = (Building) poi; + + uri = Uri.parse("http://id.southampton.ac.uk/building/" + building.id); + } else { + Log.e(TAG, "Error in onItemLongClick"); + return false; + } + + Log.i(TAG, "Starting a activity for " + uri + " path " + uri.getPath()); + + Intent busStopIntent = new Intent(Intent.ACTION_VIEW, uri); + startActivity(busStopIntent); + + return true; + } + + public void onLocationChanged(Location location) { + Log.i(TAG, "Got location update for FindActivity"); + userLocation = Util.locationToGeoPoint(location); + if (!searchThread.isAlive()) { + searchThread = new Thread(this); + searchThread.start(); + } + } + + public void onProviderDisabled(String arg0) { + } + + public void onProviderEnabled(String provider) { + } + + public void onStatusChanged(String provider, int status, Bundle extras) { + } +}
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