thoerup/traininfo/StationList.java

package dk.thoerup.traininfo;

import java.util.ArrayList;
import java.util.List;
import java.util.Locale;

import android.app.AlertDialog;
import android.app.Dialog;
import android.app.ListActivity;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.location.Address;
import android.location.Geocoder;
import android.location.Location;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
import android.view.ContextMenu;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ContextMenu.ContextMenuInfo;
import android.view.View.OnCreateContextMenuListener;
import android.widget.AdapterView;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.Toast;
import dk.thoerup.traininfo.provider.ProviderFactory;
import dk.thoerup.traininfo.provider.StationProvider;
import dk.thoerup.traininfo.stationmap.GeoPair;
import dk.thoerup.traininfo.stationmap.StationMapView;
import dk.thoerup.traininfo.util.IntSet;
import dk.thoerup.traininfo.util.MessageBox;

public class StationList extends ListActivity  {
        public static final int GOTLOCATION = 1001;
        public static final int GOTSTATIONLIST = 1002;
        public static final int NOPROVIDER = 1003;
        public static final int LOCATIONFIXTIMEOUT = 1004;
        
        public static final int OPTIONS_RESCAN = 2001;
        public static final int OPTIONS_NAMESEARCH = 2002;
        public static final int OPTIONS_MAP = 2003;
        public static final int OPTIONS_ABOUT = 2004;
        public static final int OPTIONS_FAVORITES = 2005;
        

        public static final int DLG_PROGRESS = 3001;
        public static final int DLG_STATIONNAME = 3002;
        
        /** Called when the activity is first created. */
        String dialogMessage = "";
        ProgressDialog dialog;
        LocationLookup locator = null;
        LocatorTask locatorTask;
        StationsFetchedHandler stationsFetched = new StationsFetchedHandler();
        
        GeoPair location = new GeoPair();
        
        boolean isRunning = false;
        List<StationBean> stations = new ArrayList<StationBean>();
        
        StationProvider stationProvider = ProviderFactory.getStationProvider();
                
        StationListAdapter adapter = null;
        
        FavoritesMenu contextMenu = new FavoritesMenu();
        IntSet favorites = new IntSet();
        
        static enum LookupMethod {
                ByLocation,
                ByName,
                ByList,
                MethodNone
        }
        
        SharedPreferences prefs;
        
        ///////////////////////////////////////////////////////////////////////////////////////////
        //Activity call backs
        
        @SuppressWarnings("unchecked")
        @Override
        public void onCreate(Bundle savedInstanceState) {
                super.onCreate(savedInstanceState);
                setContentView(R.layout.main);
                
                
                adapter = new StationListAdapter(this);
                setListAdapter(adapter);
                
                ListView lv = getListView();
                lv.setOnCreateContextMenuListener(contextMenu);
                
                locator = new LocationLookup(this, stationsFetched);
                

                prefs = getSharedPreferences("TrainStation", 0);
                String favoriteString = prefs.getString("favorites", "");
                if (! favoriteString.equals("") ) {
                        favorites.fromString(favoriteString);
                }
                
                if (savedInstanceState == null) {
                        startLookup();
                } else {
                        stations = (ArrayList<StationBean>) savedInstanceState.getSerializable("stations");
                        adapter.setStations(stations);
                        location = (GeoPair) savedInstanceState.getSerializable("location");
                }
        }


    @Override 
    public void onSaveInstanceState(Bundle outState) 
    {
        if (dialog != null && dialog.isShowing())
                dialog.dismiss();
        outState.putSerializable("stations", (ArrayList<StationBean>) stations);
        outState.putSerializable("location", location);
    }
        
        
        @Override
        public boolean onCreateOptionsMenu(Menu menu) {
                MenuItem item;
                
                item = menu.add(0, OPTIONS_RESCAN, 0, "Find nearest stations");
                item.setIcon(android.R.drawable.ic_menu_mylocation);
                
                item = menu.add(0, OPTIONS_NAMESEARCH, 0, "Search for station");
                item.setIcon(android.R.drawable.ic_menu_search);
                
                item = menu.add(0, OPTIONS_FAVORITES, 0, "Favorites");
                item.setIcon(android.R.drawable.ic_menu_agenda);
                
                item = menu.add(0, OPTIONS_MAP, 0, "Show station map");
                item.setIcon(android.R.drawable.ic_menu_mapmode);
                
                item = menu.add(0, OPTIONS_ABOUT, 0, "About");
                item.setIcon(android.R.drawable.ic_menu_info_details);
                return true;
        }

        @Override
        public boolean onOptionsItemSelected(MenuItem item) {
                boolean retval = true;

                
                switch (item.getItemId()) {
                case OPTIONS_RESCAN:
                        startLookup();
                        break;
                case OPTIONS_NAMESEARCH:
                        showDialog(DLG_STATIONNAME);
                        break;
                case OPTIONS_FAVORITES:
                        startFavoriteLookup();
                        break;
                case OPTIONS_MAP:
                        
                        Intent intent = new Intent(this,StationMapView.class);
                        intent.putExtra("userlocation", location );
                        
                        ArrayList<GeoPair> stationPoints = new ArrayList<GeoPair>();
                        for (StationBean st : stations ) {
                                stationPoints.add( new GeoPair(st.getLatitude(), st.getLongitude(), st.getName()) );
                        }
                        
                        intent.putExtra("stations", stationPoints);
                        
                        startActivity(intent);
                        break;
                case OPTIONS_ABOUT:
                        String ver = this.getResources().getString(R.string.app_version);
                        
                        Location loc = locator.getLocation();
                        StringBuffer message = new StringBuffer();
                        message.append("TrainInfo DK v").append(ver).append("\n");
                        message.append("By Torben Nielsen\n");
                        message.append("\n");
                        message.append("Location info:\n");
                        message.append("-Obtained by: ").append(loc != null ? loc.getProvider() : "-").append("\n");
                        message.append("-Accuracy: ").append(loc != null ? (int)loc.getAccuracy() : "-").append("m\n");

                        MessageBox.showMessage(this, message.toString());
                        break;
                default:
                        retval = super.onOptionsItemSelected(item);
                }
                
                return retval;
        }
        
        
        @Override
        public boolean onContextItemSelected(MenuItem item) {
                contextMenu.onContextItemSelected(item);
                return true;


        }


        @Override
        protected Dialog onCreateDialog(int id) {
                switch (id) {
                case DLG_PROGRESS:
                        ProgressDialog dlg = new ProgressDialog(this);
                        dlg.setMessage("Wait for location fix");
                        dlg.setCancelable(false);
                        return dlg;                     
                case DLG_STATIONNAME:
                        LayoutInflater factory = LayoutInflater.from(this); 
                        final View rootView = factory.inflate(R.layout.textinput, null);
                        
                        
                        AlertDialog.Builder builder = new AlertDialog.Builder(this);
                        
                        builder.setTitle("Station search");
                        builder.setView(rootView);
                        builder.setCancelable(true);
                        builder.setPositiveButton("Search", new DialogInterface.OnClickListener() {
                                public void onClick(DialogInterface dialog, int which) {
                                        EditText et = (EditText) rootView.findViewById(R.id.EditText);
                                        dialog.dismiss();
                                        if (et.getText().toString().length() >= 2) {
                                                startNameSearch(et.getText().toString());
                                        } else {
                                                MessageBox.showMessage(StationList.this, "Two characters minimum" );
                                        }
                                }
                        });
                        builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
                                public void onClick(DialogInterface dialog, int which) {
                                        dialog.dismiss();
                                }
                        });                     
                        return builder.create();
                        
                default:
                        return super.onCreateDialog(id);                
                }
                
        }
        
        
        @Override
        protected void onPrepareDialog(int id, Dialog dialog) {
                super.onPrepareDialog(id, dialog);
                switch (id) {
                case DLG_PROGRESS:
                        this.dialog = (ProgressDialog) dialog;
                        if (!dialogMessage.equals("")) {
                                this.dialog.setMessage(dialogMessage);
                                dialogMessage = "";
                        }
                        break;
                }
        }
        
        @Override
        protected void onListItemClick(ListView l, View v, int position, long id) {
                super.onListItemClick(l, v, position, id);
                                
                StationBean station = stations.get(position);

                double latitude = station.getLatitude();
                double longitude = station.getLongitude();


                Intent intent = new Intent(this, DepartureList.class);
                intent.putExtra("name", station.getName());
                intent.putExtra("distance", station.getDistance());
                intent.putExtra("latitude", latitude);
                intent.putExtra("longitude", longitude);
                intent.putExtra("stationid", station.getId());
                intent.putExtra("address", station.getAddress());
                startActivity(intent);
        }

        /////////////////////////////////////////////////////////////
        //

        public void startLookup() {
                isRunning = true;
                dialogMessage = "Wait for location fix";
                showDialog(DLG_PROGRESS);
                
                locator.locateStations();
                stationsFetched.sendEmptyMessageDelayed(LOCATIONFIXTIMEOUT, 20000);
        }
        
        void startNameSearch(String name) {
                dialogMessage = "Finding stations by name";
                showDialog(DLG_PROGRESS);

                locatorTask = new LocatorTask();
                locatorTask.searchByName(name, locator.getLocation());
                locatorTask.execute();
                
        }
        
        public void startFavoriteLookup() {
                
                if (favorites.toString().length() > 0) {
                        dialogMessage = "Loading favorites";
                        showDialog(DLG_PROGRESS);

                        locatorTask = new LocatorTask();
                        locatorTask.searchByIds(favorites.toString(), locator.getLocation());
                        locatorTask.execute();
                } else {
                        MessageBox.showMessage(this, "Favorite list is empty");
                }
        }


        void startLocatorTask()
        {
                dialogMessage = "Finding nearby stations"; 
                showDialog(DLG_PROGRESS);
                
                locatorTask = new LocatorTask();
                locatorTask.searchByLocation( locator.getLocation() );
                locatorTask.execute();  
        }
        

        String lookupAddress(double latitude, double longitude) {
                
                Geocoder coder = new Geocoder(this, new Locale("da"));
                StringBuilder sb = new StringBuilder();
                Log.i("lookupaddr", "" + latitude + "/" + longitude);
                try {
                        List<Address> addressList = coder.getFromLocation(latitude, longitude, 1);
                        Address addr = addressList.get(0);
                        
                        
                        int max = addr.getMaxAddressLineIndex();
                        for (int i=0; i<max; i++) {
                                if (i>0)
                                        sb.append(", ");
                                
                                sb.append(addr.getAddressLine(i));
                        }
                        
                        
                } catch (Exception e) {
                        Log.e("DepartureList", "geocoder failed", e);
                }
                
                return sb.toString();
        }
        
        
        ////////////////////////////////////////////////////////////////////////////
        // Inner classes

        class StationsFetchedHandler extends Handler {
                @Override
                public void handleMessage(Message msg) {

                        switch (msg.what) {
                        case GOTLOCATION:
                                dismissDialog(DLG_PROGRESS);
                                
                                startLocatorTask();
                                location = GeoPair.fromLocation( locator.getLocation() );
                                
                                break;

                        case NOPROVIDER:
                                dismissDialog(DLG_PROGRESS);
                                MessageBox.showMessage(StationList.this,"No location provider enabled. Plase enable gps.");
                                break;
                        case LOCATIONFIXTIMEOUT:                                
                                if (isRunning) {
                                        locator.stopSearch();
                                        if (locator.hasLocation()) {
                                                stationsFetched.sendEmptyMessage( GOTLOCATION ); 
                                        } else {                                                
                                                dismissDialog(DLG_PROGRESS);
                                                
                                                AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);                                                
                                                builder.setMessage("Location fix timed out");
                                                builder.setCancelable(true);
                                                builder.setPositiveButton("Retry", new DialogInterface.OnClickListener() {
                                                        public void onClick(DialogInterface dialog, int id) {
                                                                dialog.dismiss();
                                                                startLookup();
                                                                
                                                        }
                                                });
                                                builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
                                                        public void onClick(DialogInterface dialog, int id) {
                                                                dialog.dismiss();
                                                        }                                                       
                                                });                                                                                             
                                                builder.show();

                                        }
                                }
                                break;
                        }
                        isRunning = false;
                }
        };

        
        class LocatorTask extends AsyncTask<Void,Void,Void> {
                
                LookupMethod method = LookupMethod.MethodNone;
                boolean success;
                String name;
                Location loc;
                String ids;
                
                public void searchByName(String n, Location l) {
                        
                        method = LookupMethod.ByName;
                        loc = l;
                        name = n;
                }
                
                public void searchByLocation(Location l) {
                        method = LookupMethod.ByLocation;
                        loc = l;
                }
                
                public void searchByIds(String id, Location l) {
                        
                        method = LookupMethod.ByList;
                        loc = l;
                        ids = id;
                }
                
                @Override
                protected void onPreExecute() {

                        if (method.equals(LookupMethod.MethodNone))
                                throw new RuntimeException("Method not set");
                        super.onPreExecute();
                }
                
                @Override
                protected Void doInBackground(Void... params) {
                
                        if (method.equals(LookupMethod.ByLocation))
                                success = stationProvider.lookupStations(loc);
                        
                        if (method.equals(LookupMethod.ByName))
                                success = stationProvider.lookupStationsByName(name);
                        
                        if (method.equals(LookupMethod.ByList))
                                success = stationProvider.lookupStationsByIds(ids);
                        
                        Location dummy = new Location("gps");
                        List<StationBean> stations = stationProvider.getStations();
                        
                        for (StationBean station : stations) { 
                                String addr = lookupAddress(station.getLatitude(), station.getLongitude());
                                station.setAddress(addr);
                                
                                if (method.equals(LookupMethod.ByName) || method.equals(LookupMethod.ByList)) {
                                        dummy.setLatitude(station.getLatitude());
                                        dummy.setLongitude(station.getLongitude());
                                        station.setDistance( (int)loc.distanceTo(dummy) );
                                }
                        }                                               
                        
                        return null;
                }

                @Override
                protected void onPostExecute(Void result) {
                        super.onPostExecute(result);
                        dialog.dismiss();
                        
                        if (success) {                          
                                if (stationProvider.getStations().size() == 0)
                                        MessageBox.showMessage(StationList.this, "No stations found!"); // this should not be possible !?!
                                stations = stationProvider.getStations();
                                adapter.setStations( stations );                                
                                
                        } else { //communication or parse errors
                                AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);                                                
                                builder.setMessage("Error on finding nearby stations");
                                builder.setCancelable(true);
                                builder.setPositiveButton("Retry", new DialogInterface.OnClickListener() {
                                        public void onClick(DialogInterface dialog, int id) {
                                                dialog.dismiss();
                                                
                                                stationsFetched.post( new Runnable() {
                                                        @Override
                                                        public void run() {
                                                                startLocatorTask();                                                             
                                                        }
                                                });
                                        }
                                });
                                builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
                                        public void onClick(DialogInterface dialog, int id) {
                                                dialog.dismiss();
                                        }                                                       
                                });                                                                                             
                                builder.show();                         
                        }
                }
        }
        
        
        class FavoritesMenu implements OnCreateContextMenuListener {
                private final static int FAVORITES_ADD = 9001;
                private final static int FAVORITES_REMOVE = 9002;
                
                private int selectedPosition;
                
                
                @Override
                public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
                                                
                        AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo) menuInfo;
                        selectedPosition = info.position;
                        int stationID = stations.get(selectedPosition).getId();

                        if (!favorites.hasInt(stationID)) {
                                menu.add(0, FAVORITES_ADD, 0, "Add to favorites");
                        } else {
                                menu.add(0, FAVORITES_REMOVE, 0, "Remove from favorites");
                        }
                        
                }
                
                public void onContextItemSelected(MenuItem item) {
                        StationBean sb = stations.get(selectedPosition);
                        
                        int stationID = sb.getId();
                        if (item.getItemId() == FAVORITES_ADD) {
                                favorites.add(stationID);
                                Toast.makeText(StationList.this, "Station added", Toast.LENGTH_SHORT).show();
                        } else {
                                favorites.remove(stationID);
                                Toast.makeText(StationList.this, "Station removed", Toast.LENGTH_SHORT).show();
                        }
                        Editor ed = prefs.edit();
                        ed.putString("favorites", favorites.toString());
                        ed.commit();
                }
        }
}
1	package dk.thoerup.traininfo;
2
3	import java.util.ArrayList;
4	import java.util.List;
5	import java.util.Locale;
6
7	import android.app.AlertDialog;
8	import android.app.Dialog;
9	import android.app.ListActivity;
10	import android.app.ProgressDialog;
11	import android.content.DialogInterface;
12	import android.content.Intent;
13	import android.content.SharedPreferences;
14	import android.content.SharedPreferences.Editor;
15	import android.location.Address;
16	import android.location.Geocoder;
17	import android.location.Location;
18	import android.os.AsyncTask;
19	import android.os.Bundle;
20	import android.os.Handler;
21	import android.os.Message;
22	import android.util.Log;
23	import android.view.ContextMenu;
24	import android.view.LayoutInflater;
25	import android.view.Menu;
26	import android.view.MenuItem;
27	import android.view.View;
28	import android.view.ContextMenu.ContextMenuInfo;
29	import android.view.View.OnCreateContextMenuListener;
30	import android.widget.AdapterView;
31	import android.widget.EditText;
32	import android.widget.ListView;
33	import android.widget.Toast;
34	import dk.thoerup.traininfo.provider.ProviderFactory;
35	import dk.thoerup.traininfo.provider.StationProvider;
36	import dk.thoerup.traininfo.stationmap.GeoPair;
37	import dk.thoerup.traininfo.stationmap.StationMapView;
38	import dk.thoerup.traininfo.util.IntSet;
39	import dk.thoerup.traininfo.util.MessageBox;
40
41	public class StationList extends ListActivity {
42	public static final int GOTLOCATION = 1001;
43	public static final int GOTSTATIONLIST = 1002;
44	public static final int NOPROVIDER = 1003;
45	public static final int LOCATIONFIXTIMEOUT = 1004;
46
47	public static final int OPTIONS_RESCAN = 2001;
48	public static final int OPTIONS_NAMESEARCH = 2002;
49	public static final int OPTIONS_MAP = 2003;
50	public static final int OPTIONS_ABOUT = 2004;
51	public static final int OPTIONS_FAVORITES = 2005;
52
53
54
55	public static final int DLG_PROGRESS = 3001;
56	public static final int DLG_STATIONNAME = 3002;
57
58	/** Called when the activity is first created. */
59	String dialogMessage = "";
60	ProgressDialog dialog;
61	LocationLookup locator = null;
62	LocatorTask locatorTask;
63	StationsFetchedHandler stationsFetched = new StationsFetchedHandler();
64
65	GeoPair location = new GeoPair();
66
67	boolean isRunning = false;
68	List<StationBean> stations = new ArrayList<StationBean>();
69
70	StationProvider stationProvider = ProviderFactory.getStationProvider();
71
72	StationListAdapter adapter = null;
73
74	FavoritesMenu contextMenu = new FavoritesMenu();
75	IntSet favorites = new IntSet();
76
77	static enum LookupMethod {
78	ByLocation,
79	ByName,
80	ByList,
81	MethodNone
82	}
83
84	SharedPreferences prefs;
85
86	///////////////////////////////////////////////////////////////////////////////////////////
87	//Activity call backs
88
89	@SuppressWarnings("unchecked")
90	@Override
91	public void onCreate(Bundle savedInstanceState) {
92	super.onCreate(savedInstanceState);
93	setContentView(R.layout.main);
94
95
96	adapter = new StationListAdapter(this);
97	setListAdapter(adapter);
98
99	ListView lv = getListView();
100	lv.setOnCreateContextMenuListener(contextMenu);
101
102	locator = new LocationLookup(this, stationsFetched);
103
104
105	prefs = getSharedPreferences("TrainStation", 0);
106	String favoriteString = prefs.getString("favorites", "");
107	if (! favoriteString.equals("") ) {
108	favorites.fromString(favoriteString);
109	}
110
111	if (savedInstanceState == null) {
112	startLookup();
113	} else {
114	stations = (ArrayList<StationBean>) savedInstanceState.getSerializable("stations");
115	adapter.setStations(stations);
116	location = (GeoPair) savedInstanceState.getSerializable("location");
117	}
118	}
119
120
121	@Override
122	public void onSaveInstanceState(Bundle outState)
123	{
124	if (dialog != null && dialog.isShowing())
125	dialog.dismiss();
126	outState.putSerializable("stations", (ArrayList<StationBean>) stations);
127	outState.putSerializable("location", location);
128	}
129
130
131
132	@Override
133	public boolean onCreateOptionsMenu(Menu menu) {
134	MenuItem item;
135
136	item = menu.add(0, OPTIONS_RESCAN, 0, "Find nearest stations");
137	item.setIcon(android.R.drawable.ic_menu_mylocation);
138
139	item = menu.add(0, OPTIONS_NAMESEARCH, 0, "Search for station");
140	item.setIcon(android.R.drawable.ic_menu_search);
141
142	item = menu.add(0, OPTIONS_FAVORITES, 0, "Favorites");
143	item.setIcon(android.R.drawable.ic_menu_agenda);
144
145	item = menu.add(0, OPTIONS_MAP, 0, "Show station map");
146	item.setIcon(android.R.drawable.ic_menu_mapmode);
147
148	item = menu.add(0, OPTIONS_ABOUT, 0, "About");
149	item.setIcon(android.R.drawable.ic_menu_info_details);
150	return true;
151	}
152
153	@Override
154	public boolean onOptionsItemSelected(MenuItem item) {
155	boolean retval = true;
156
157
158	switch (item.getItemId()) {
159	case OPTIONS_RESCAN:
160	startLookup();
161	break;
162	case OPTIONS_NAMESEARCH:
163	showDialog(DLG_STATIONNAME);
164	break;
165	case OPTIONS_FAVORITES:
166	startFavoriteLookup();
167	break;
168	case OPTIONS_MAP:
169
170	Intent intent = new Intent(this,StationMapView.class);
171	intent.putExtra("userlocation", location );
172
173	ArrayList<GeoPair> stationPoints = new ArrayList<GeoPair>();
174	for (StationBean st : stations ) {
175	stationPoints.add( new GeoPair(st.getLatitude(), st.getLongitude(), st.getName()) );
176	}
177
178	intent.putExtra("stations", stationPoints);
179
180	startActivity(intent);
181	break;
182	case OPTIONS_ABOUT:
183	String ver = this.getResources().getString(R.string.app_version);
184
185	Location loc = locator.getLocation();
186	StringBuffer message = new StringBuffer();
187	message.append("TrainInfo DK v").append(ver).append("\n");
188	message.append("By Torben Nielsen\n");
189	message.append("\n");
190	message.append("Location info:\n");
191	message.append("-Obtained by: ").append(loc != null ? loc.getProvider() : "-").append("\n");
192	message.append("-Accuracy: ").append(loc != null ? (int)loc.getAccuracy() : "-").append("m\n");
193
194	MessageBox.showMessage(this, message.toString());
195	break;
196	default:
197	retval = super.onOptionsItemSelected(item);
198	}
199
200	return retval;
201	}
202
203
204
205	@Override
206	public boolean onContextItemSelected(MenuItem item) {
207	contextMenu.onContextItemSelected(item);
208	return true;
209
210
211	}
212
213
214
215
216	@Override
217	protected Dialog onCreateDialog(int id) {
218	switch (id) {
219	case DLG_PROGRESS:
220	ProgressDialog dlg = new ProgressDialog(this);
221	dlg.setMessage("Wait for location fix");
222	dlg.setCancelable(false);
223	return dlg;
224	case DLG_STATIONNAME:
225	LayoutInflater factory = LayoutInflater.from(this);
226	final View rootView = factory.inflate(R.layout.textinput, null);
227
228
229	AlertDialog.Builder builder = new AlertDialog.Builder(this);
230
231	builder.setTitle("Station search");
232	builder.setView(rootView);
233	builder.setCancelable(true);
234	builder.setPositiveButton("Search", new DialogInterface.OnClickListener() {
235	public void onClick(DialogInterface dialog, int which) {
236	EditText et = (EditText) rootView.findViewById(R.id.EditText);
237	dialog.dismiss();
238	if (et.getText().toString().length() >= 2) {
239	startNameSearch(et.getText().toString());
240	} else {
241	MessageBox.showMessage(StationList.this, "Two characters minimum" );
242	}
243	}
244	});
245	builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
246	public void onClick(DialogInterface dialog, int which) {
247	dialog.dismiss();
248	}
249	});
250	return builder.create();
251
252	default:
253	return super.onCreateDialog(id);
254	}
255
256	}
257
258
259	@Override
260	protected void onPrepareDialog(int id, Dialog dialog) {
261	super.onPrepareDialog(id, dialog);
262	switch (id) {
263	case DLG_PROGRESS:
264	this.dialog = (ProgressDialog) dialog;
265	if (!dialogMessage.equals("")) {
266	this.dialog.setMessage(dialogMessage);
267	dialogMessage = "";
268	}
269	break;
270	}
271	}
272
273	@Override
274	protected void onListItemClick(ListView l, View v, int position, long id) {
275	super.onListItemClick(l, v, position, id);
276
277	StationBean station = stations.get(position);
278
279	double latitude = station.getLatitude();
280	double longitude = station.getLongitude();
281
282
283
284	Intent intent = new Intent(this, DepartureList.class);
285	intent.putExtra("name", station.getName());
286	intent.putExtra("distance", station.getDistance());
287	intent.putExtra("latitude", latitude);
288	intent.putExtra("longitude", longitude);
289	intent.putExtra("stationid", station.getId());
290	intent.putExtra("address", station.getAddress());
291	startActivity(intent);
292	}
293
294	/////////////////////////////////////////////////////////////
295	//
296
297	public void startLookup() {
298	isRunning = true;
299	dialogMessage = "Wait for location fix";
300	showDialog(DLG_PROGRESS);
301
302	locator.locateStations();
303	stationsFetched.sendEmptyMessageDelayed(LOCATIONFIXTIMEOUT, 20000);
304	}
305
306	void startNameSearch(String name) {
307	dialogMessage = "Finding stations by name";
308	showDialog(DLG_PROGRESS);
309
310	locatorTask = new LocatorTask();
311	locatorTask.searchByName(name, locator.getLocation());
312	locatorTask.execute();
313
314	}
315
316	public void startFavoriteLookup() {
317
318	if (favorites.toString().length() > 0) {
319	dialogMessage = "Loading favorites";
320	showDialog(DLG_PROGRESS);
321
322	locatorTask = new LocatorTask();
323	locatorTask.searchByIds(favorites.toString(), locator.getLocation());
324	locatorTask.execute();
325	} else {
326	MessageBox.showMessage(this, "Favorite list is empty");
327	}
328	}
329
330
331
332	void startLocatorTask()
333	{
334	dialogMessage = "Finding nearby stations";
335	showDialog(DLG_PROGRESS);
336
337	locatorTask = new LocatorTask();
338	locatorTask.searchByLocation( locator.getLocation() );
339	locatorTask.execute();
340	}
341
342
343	String lookupAddress(double latitude, double longitude) {
344
345	Geocoder coder = new Geocoder(this, new Locale("da"));
346	StringBuilder sb = new StringBuilder();
347	Log.i("lookupaddr", "" + latitude + "/" + longitude);
348	try {
349	List<Address> addressList = coder.getFromLocation(latitude, longitude, 1);
350	Address addr = addressList.get(0);
351
352
353	int max = addr.getMaxAddressLineIndex();
354	for (int i=0; i<max; i++) {
355	if (i>0)
356	sb.append(", ");
357
358	sb.append(addr.getAddressLine(i));
359	}
360
361
362	} catch (Exception e) {
363	Log.e("DepartureList", "geocoder failed", e);
364	}
365
366	return sb.toString();
367	}
368
369
370	////////////////////////////////////////////////////////////////////////////
371	// Inner classes
372
373	class StationsFetchedHandler extends Handler {
374	@Override
375	public void handleMessage(Message msg) {
376
377	switch (msg.what) {
378	case GOTLOCATION:
379	dismissDialog(DLG_PROGRESS);
380
381	startLocatorTask();
382	location = GeoPair.fromLocation( locator.getLocation() );
383
384	break;
385
386	case NOPROVIDER:
387	dismissDialog(DLG_PROGRESS);
388	MessageBox.showMessage(StationList.this,"No location provider enabled. Plase enable gps.");
389	break;
390	case LOCATIONFIXTIMEOUT:
391	if (isRunning) {
392	locator.stopSearch();
393	if (locator.hasLocation()) {
394	stationsFetched.sendEmptyMessage( GOTLOCATION );
395	} else {
396	dismissDialog(DLG_PROGRESS);
397
398	AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);
399	builder.setMessage("Location fix timed out");
400	builder.setCancelable(true);
401	builder.setPositiveButton("Retry", new DialogInterface.OnClickListener() {
402	public void onClick(DialogInterface dialog, int id) {
403	dialog.dismiss();
404	startLookup();
405
406	}
407	});
408	builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
409	public void onClick(DialogInterface dialog, int id) {
410	dialog.dismiss();
411	}
412	});
413	builder.show();
414
415	}
416	}
417	break;
418	}
419	isRunning = false;
420	}
421	};
422
423
424	class LocatorTask extends AsyncTask<Void,Void,Void> {
425
426	LookupMethod method = LookupMethod.MethodNone;
427	boolean success;
428	String name;
429	Location loc;
430	String ids;
431
432	public void searchByName(String n, Location l) {
433
434	method = LookupMethod.ByName;
435	loc = l;
436	name = n;
437	}
438
439	public void searchByLocation(Location l) {
440	method = LookupMethod.ByLocation;
441	loc = l;
442	}
443
444	public void searchByIds(String id, Location l) {
445
446	method = LookupMethod.ByList;
447	loc = l;
448	ids = id;
449	}
450
451	@Override
452	protected void onPreExecute() {
453
454	if (method.equals(LookupMethod.MethodNone))
455	throw new RuntimeException("Method not set");
456	super.onPreExecute();
457	}
458
459	@Override
460	protected Void doInBackground(Void... params) {
461
462	if (method.equals(LookupMethod.ByLocation))
463	success = stationProvider.lookupStations(loc);
464
465	if (method.equals(LookupMethod.ByName))
466	success = stationProvider.lookupStationsByName(name);
467
468	if (method.equals(LookupMethod.ByList))
469	success = stationProvider.lookupStationsByIds(ids);
470
471	Location dummy = new Location("gps");
472	List<StationBean> stations = stationProvider.getStations();
473
474	for (StationBean station : stations) {
475	String addr = lookupAddress(station.getLatitude(), station.getLongitude());
476	station.setAddress(addr);
477
478	if (method.equals(LookupMethod.ByName) \|\| method.equals(LookupMethod.ByList)) {
479	dummy.setLatitude(station.getLatitude());
480	dummy.setLongitude(station.getLongitude());
481	station.setDistance( (int)loc.distanceTo(dummy) );
482	}
483	}
484
485	return null;
486	}
487
488	@Override
489	protected void onPostExecute(Void result) {
490	super.onPostExecute(result);
491	dialog.dismiss();
492
493	if (success) {
494	if (stationProvider.getStations().size() == 0)
495	MessageBox.showMessage(StationList.this, "No stations found!"); // this should not be possible !?!
496	stations = stationProvider.getStations();
497	adapter.setStations( stations );
498
499	} else { //communication or parse errors
500	AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);
501	builder.setMessage("Error on finding nearby stations");
502	builder.setCancelable(true);
503	builder.setPositiveButton("Retry", new DialogInterface.OnClickListener() {
504	public void onClick(DialogInterface dialog, int id) {
505	dialog.dismiss();
506
507	stationsFetched.post( new Runnable() {
508	@Override
509	public void run() {
510	startLocatorTask();
511	}
512	});
513	}
514	});
515	builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
516	public void onClick(DialogInterface dialog, int id) {
517	dialog.dismiss();
518	}
519	});
520	builder.show();
521	}
522	}
523	}
524
525
526	class FavoritesMenu implements OnCreateContextMenuListener {
527	private final static int FAVORITES_ADD = 9001;
528	private final static int FAVORITES_REMOVE = 9002;
529
530	private int selectedPosition;
531
532
533	@Override
534	public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
535
536	AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo) menuInfo;
537	selectedPosition = info.position;
538	int stationID = stations.get(selectedPosition).getId();
539
540	if (!favorites.hasInt(stationID)) {
541	menu.add(0, FAVORITES_ADD, 0, "Add to favorites");
542	} else {
543	menu.add(0, FAVORITES_REMOVE, 0, "Remove from favorites");
544	}
545
546	}
547
548	public void onContextItemSelected(MenuItem item) {
549	StationBean sb = stations.get(selectedPosition);
550
551	int stationID = sb.getId();
552	if (item.getItemId() == FAVORITES_ADD) {
553	favorites.add(stationID);
554	Toast.makeText(StationList.this, "Station added", Toast.LENGTH_SHORT).show();
555	} else {
556	favorites.remove(stationID);
557	Toast.makeText(StationList.this, "Station removed", Toast.LENGTH_SHORT).show();
558	}
559	Editor ed = prefs.edit();
560	ed.putString("favorites", favorites.toString());
561	ed.commit();
562	}
563	}
564	}