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;
        
        static enum LookupMethod {
                ByLocation,
                ByName,
                ByList,
                MethodNone
        }
        
        
        String dialogMessage = "";
        ProgressDialog dialog;
        LocationLookup locator = null;
        FindStationsTask findStationsTask;
        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();
        

        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, "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, "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);

                findStationsTask = new FindStationsTask();
                findStationsTask.searchByName(name, locator.getLocation());
                findStationsTask.execute();
                
        }
        
        public void startFavoriteLookup() {
                
                if (favorites.size() > 0) {
                        dialogMessage = "Loading favorites";
                        showDialog(DLG_PROGRESS);

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


        void startLocatorTask()
        {
                dialogMessage = "Finding nearby stations"; 
                showDialog(DLG_PROGRESS);
                
                findStationsTask = new FindStationsTask();
                findStationsTask.searchByLocation( locator.getLocation() );
                findStationsTask.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 FindStationsTask 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.contains(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	static enum LookupMethod {
59	ByLocation,
60	ByName,
61	ByList,
62	MethodNone
63	}
64
65
66	String dialogMessage = "";
67	ProgressDialog dialog;
68	LocationLookup locator = null;
69	FindStationsTask findStationsTask;
70	StationsFetchedHandler stationsFetched = new StationsFetchedHandler();
71
72	GeoPair location = new GeoPair();
73
74	boolean isRunning = false;
75	List<StationBean> stations = new ArrayList<StationBean>();
76
77	StationProvider stationProvider = ProviderFactory.getStationProvider();
78
79	StationListAdapter adapter = null;
80
81	FavoritesMenu contextMenu = new FavoritesMenu();
82	IntSet favorites = new IntSet();
83
84
85
86	SharedPreferences prefs;
87
88	///////////////////////////////////////////////////////////////////////////////////////////
89	//Activity call backs
90
91	@SuppressWarnings("unchecked")
92	@Override
93	public void onCreate(Bundle savedInstanceState) {
94	super.onCreate(savedInstanceState);
95	setContentView(R.layout.main);
96
97
98	adapter = new StationListAdapter(this);
99	setListAdapter(adapter);
100
101	ListView lv = getListView();
102	lv.setOnCreateContextMenuListener(contextMenu);
103
104	locator = new LocationLookup(this, stationsFetched);
105
106
107	prefs = getSharedPreferences("TrainStation", 0);
108	String favoriteString = prefs.getString("favorites", "");
109	if (! favoriteString.equals("") ) {
110	favorites.fromString(favoriteString);
111	}
112
113	if (savedInstanceState == null) {
114	startLookup();
115	} else {
116	stations = (ArrayList<StationBean>) savedInstanceState.getSerializable("stations");
117	adapter.setStations(stations);
118	location = (GeoPair) savedInstanceState.getSerializable("location");
119	}
120	}
121
122
123	@Override
124	public void onSaveInstanceState(Bundle outState)
125	{
126	if (dialog != null && dialog.isShowing())
127	dialog.dismiss();
128	outState.putSerializable("stations", (ArrayList<StationBean>) stations);
129	outState.putSerializable("location", location);
130	}
131
132
133
134	@Override
135	public boolean onCreateOptionsMenu(Menu menu) {
136	MenuItem item;
137
138	item = menu.add(0, OPTIONS_RESCAN, 0, "Nearest stations");
139	item.setIcon(android.R.drawable.ic_menu_mylocation);
140
141	item = menu.add(0, OPTIONS_NAMESEARCH, 0, "Search for station");
142	item.setIcon(android.R.drawable.ic_menu_search);
143
144	item = menu.add(0, OPTIONS_FAVORITES, 0, "Favorites");
145	item.setIcon(android.R.drawable.ic_menu_agenda);
146
147	item = menu.add(0, OPTIONS_MAP, 0, "Station map");
148	item.setIcon(android.R.drawable.ic_menu_mapmode);
149
150	item = menu.add(0, OPTIONS_ABOUT, 0, "About");
151	item.setIcon(android.R.drawable.ic_menu_info_details);
152	return true;
153	}
154
155	@Override
156	public boolean onOptionsItemSelected(MenuItem item) {
157	boolean retval = true;
158
159
160	switch (item.getItemId()) {
161	case OPTIONS_RESCAN:
162	startLookup();
163	break;
164	case OPTIONS_NAMESEARCH:
165	showDialog(DLG_STATIONNAME);
166	break;
167	case OPTIONS_FAVORITES:
168	startFavoriteLookup();
169	break;
170	case OPTIONS_MAP:
171
172	Intent intent = new Intent(this,StationMapView.class);
173	intent.putExtra("userlocation", location );
174
175	ArrayList<GeoPair> stationPoints = new ArrayList<GeoPair>();
176	for (StationBean st : stations ) {
177	stationPoints.add( new GeoPair(st.getLatitude(), st.getLongitude(), st.getName()) );
178	}
179
180	intent.putExtra("stations", stationPoints);
181
182	startActivity(intent);
183	break;
184	case OPTIONS_ABOUT:
185	String ver = this.getResources().getString(R.string.app_version);
186
187	Location loc = locator.getLocation();
188	StringBuffer message = new StringBuffer();
189	message.append("TrainInfo DK v").append(ver).append("\n");
190	message.append("By Torben Nielsen\n");
191	message.append("\n");
192	message.append("Location info:\n");
193	message.append("-Obtained by: ").append(loc != null ? loc.getProvider() : "-").append("\n");
194	message.append("-Accuracy: ").append(loc != null ? (int)loc.getAccuracy() : "-").append("m\n");
195
196	MessageBox.showMessage(this, message.toString());
197	break;
198	default:
199	retval = super.onOptionsItemSelected(item);
200	}
201
202	return retval;
203	}
204
205
206
207	@Override
208	public boolean onContextItemSelected(MenuItem item) {
209	contextMenu.onContextItemSelected(item);
210	return true;
211
212
213	}
214
215
216
217
218	@Override
219	protected Dialog onCreateDialog(int id) {
220	switch (id) {
221	case DLG_PROGRESS:
222	ProgressDialog dlg = new ProgressDialog(this);
223	dlg.setMessage("Wait for location fix");
224	dlg.setCancelable(false);
225	return dlg;
226	case DLG_STATIONNAME:
227	LayoutInflater factory = LayoutInflater.from(this);
228	final View rootView = factory.inflate(R.layout.textinput, null);
229
230
231	AlertDialog.Builder builder = new AlertDialog.Builder(this);
232
233	builder.setTitle("Station search");
234	builder.setView(rootView);
235	builder.setCancelable(true);
236	builder.setPositiveButton("Search", new DialogInterface.OnClickListener() {
237	public void onClick(DialogInterface dialog, int which) {
238	EditText et = (EditText) rootView.findViewById(R.id.EditText);
239	dialog.dismiss();
240	if (et.getText().toString().length() >= 2) {
241	startNameSearch(et.getText().toString());
242	} else {
243	MessageBox.showMessage(StationList.this, "Two characters minimum" );
244	}
245	}
246	});
247	builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
248	public void onClick(DialogInterface dialog, int which) {
249	dialog.dismiss();
250	}
251	});
252	return builder.create();
253
254	default:
255	return super.onCreateDialog(id);
256	}
257
258	}
259
260
261	@Override
262	protected void onPrepareDialog(int id, Dialog dialog) {
263	super.onPrepareDialog(id, dialog);
264	switch (id) {
265	case DLG_PROGRESS:
266	this.dialog = (ProgressDialog) dialog;
267	if (!dialogMessage.equals("")) {
268	this.dialog.setMessage(dialogMessage);
269	dialogMessage = "";
270	}
271	break;
272	}
273	}
274
275	@Override
276	protected void onListItemClick(ListView l, View v, int position, long id) {
277	super.onListItemClick(l, v, position, id);
278
279	StationBean station = stations.get(position);
280
281	double latitude = station.getLatitude();
282	double longitude = station.getLongitude();
283
284
285
286	Intent intent = new Intent(this, DepartureList.class);
287	intent.putExtra("name", station.getName());
288	intent.putExtra("distance", station.getDistance());
289	intent.putExtra("latitude", latitude);
290	intent.putExtra("longitude", longitude);
291	intent.putExtra("stationid", station.getId());
292	intent.putExtra("address", station.getAddress());
293	startActivity(intent);
294	}
295
296	/////////////////////////////////////////////////////////////
297	//
298
299	public void startLookup() {
300	isRunning = true;
301	dialogMessage = "Wait for location fix";
302	showDialog(DLG_PROGRESS);
303
304	locator.locateStations();
305	stationsFetched.sendEmptyMessageDelayed(LOCATIONFIXTIMEOUT, 20000);
306	}
307
308	void startNameSearch(String name) {
309	dialogMessage = "Finding stations by name";
310	showDialog(DLG_PROGRESS);
311
312	findStationsTask = new FindStationsTask();
313	findStationsTask.searchByName(name, locator.getLocation());
314	findStationsTask.execute();
315
316	}
317
318	public void startFavoriteLookup() {
319
320	if (favorites.size() > 0) {
321	dialogMessage = "Loading favorites";
322	showDialog(DLG_PROGRESS);
323
324	findStationsTask = new FindStationsTask();
325	findStationsTask.searchByIds(favorites.toString(), locator.getLocation());
326	findStationsTask.execute();
327	} else {
328	MessageBox.showMessage(this, "Favorite list is empty");
329	}
330	}
331
332
333
334	void startLocatorTask()
335	{
336	dialogMessage = "Finding nearby stations";
337	showDialog(DLG_PROGRESS);
338
339	findStationsTask = new FindStationsTask();
340	findStationsTask.searchByLocation( locator.getLocation() );
341	findStationsTask.execute();
342	}
343
344
345	String lookupAddress(double latitude, double longitude) {
346
347	Geocoder coder = new Geocoder(this, new Locale("da"));
348	StringBuilder sb = new StringBuilder();
349	Log.i("lookupaddr", "" + latitude + "/" + longitude);
350	try {
351	List<Address> addressList = coder.getFromLocation(latitude, longitude, 1);
352	Address addr = addressList.get(0);
353
354
355	int max = addr.getMaxAddressLineIndex();
356	for (int i=0; i<max; i++) {
357	if (i>0)
358	sb.append(", ");
359
360	sb.append(addr.getAddressLine(i));
361	}
362
363
364	} catch (Exception e) {
365	Log.e("DepartureList", "geocoder failed", e);
366	}
367
368	return sb.toString();
369	}
370
371
372	////////////////////////////////////////////////////////////////////////////
373	// Inner classes
374
375	class StationsFetchedHandler extends Handler {
376	@Override
377	public void handleMessage(Message msg) {
378
379	switch (msg.what) {
380	case GOTLOCATION:
381	dismissDialog(DLG_PROGRESS);
382
383	startLocatorTask();
384	location = GeoPair.fromLocation( locator.getLocation() );
385
386	break;
387
388	case NOPROVIDER:
389	dismissDialog(DLG_PROGRESS);
390	MessageBox.showMessage(StationList.this,"No location provider enabled. Plase enable gps.");
391	break;
392	case LOCATIONFIXTIMEOUT:
393	if (isRunning) {
394	locator.stopSearch();
395	if (locator.hasLocation()) {
396	stationsFetched.sendEmptyMessage( GOTLOCATION );
397	} else {
398	dismissDialog(DLG_PROGRESS);
399
400	AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);
401	builder.setMessage("Location fix timed out");
402	builder.setCancelable(true);
403	builder.setPositiveButton("Retry", new DialogInterface.OnClickListener() {
404	public void onClick(DialogInterface dialog, int id) {
405	dialog.dismiss();
406	startLookup();
407
408	}
409	});
410	builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
411	public void onClick(DialogInterface dialog, int id) {
412	dialog.dismiss();
413	}
414	});
415	builder.show();
416
417	}
418	}
419	break;
420	}
421	isRunning = false;
422	}
423	};
424
425
426	class FindStationsTask extends AsyncTask<Void,Void,Void> {
427
428	LookupMethod method = LookupMethod.MethodNone;
429	boolean success;
430	String name;
431	Location loc;
432	String ids;
433
434	public void searchByName(String n, Location l) {
435
436	method = LookupMethod.ByName;
437	loc = l;
438	name = n;
439	}
440
441	public void searchByLocation(Location l) {
442	method = LookupMethod.ByLocation;
443	loc = l;
444	}
445
446	public void searchByIds(String id, Location l) {
447
448	method = LookupMethod.ByList;
449	loc = l;
450	ids = id;
451	}
452
453	@Override
454	protected void onPreExecute() {
455
456	if (method.equals(LookupMethod.MethodNone))
457	throw new RuntimeException("Method not set");
458	super.onPreExecute();
459	}
460
461	@Override
462	protected Void doInBackground(Void... params) {
463
464	if (method.equals(LookupMethod.ByLocation))
465	success = stationProvider.lookupStations(loc);
466
467	if (method.equals(LookupMethod.ByName))
468	success = stationProvider.lookupStationsByName(name);
469
470	if (method.equals(LookupMethod.ByList))
471	success = stationProvider.lookupStationsByIds(ids);
472
473	Location dummy = new Location("gps");
474	List<StationBean> stations = stationProvider.getStations();
475
476	for (StationBean station : stations) {
477	String addr = lookupAddress(station.getLatitude(), station.getLongitude());
478	station.setAddress(addr);
479
480	if (method.equals(LookupMethod.ByName) \|\| method.equals(LookupMethod.ByList)) {
481	dummy.setLatitude(station.getLatitude());
482	dummy.setLongitude(station.getLongitude());
483	station.setDistance( (int)loc.distanceTo(dummy) );
484	}
485	}
486
487	return null;
488	}
489
490	@Override
491	protected void onPostExecute(Void result) {
492	super.onPostExecute(result);
493	dialog.dismiss();
494
495	if (success) {
496	if (stationProvider.getStations().size() == 0)
497	MessageBox.showMessage(StationList.this, "No stations found!"); // this should not be possible !?!
498	stations = stationProvider.getStations();
499	adapter.setStations( stations );
500
501	} else { //communication or parse errors
502	AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);
503	builder.setMessage("Error on finding nearby stations");
504	builder.setCancelable(true);
505	builder.setPositiveButton("Retry", new DialogInterface.OnClickListener() {
506	public void onClick(DialogInterface dialog, int id) {
507	dialog.dismiss();
508
509	stationsFetched.post( new Runnable() {
510	@Override
511	public void run() {
512	startLocatorTask();
513	}
514	});
515	}
516	});
517	builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
518	public void onClick(DialogInterface dialog, int id) {
519	dialog.dismiss();
520	}
521	});
522	builder.show();
523	}
524	}
525	}
526
527
528	class FavoritesMenu implements OnCreateContextMenuListener {
529	private final static int FAVORITES_ADD = 9001;
530	private final static int FAVORITES_REMOVE = 9002;
531
532	private int selectedPosition;
533
534
535	@Override
536	public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
537
538	AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo) menuInfo;
539	selectedPosition = info.position;
540	int stationID = stations.get(selectedPosition).getId();
541
542	if (!favorites.contains(stationID)) {
543	menu.add(0, FAVORITES_ADD, 0, "Add to favorites");
544	} else {
545	menu.add(0, FAVORITES_REMOVE, 0, "Remove from favorites");
546	}
547
548	}
549
550	public void onContextItemSelected(MenuItem item) {
551	StationBean sb = stations.get(selectedPosition);
552
553	int stationID = sb.getId();
554	if (item.getItemId() == FAVORITES_ADD) {
555	favorites.add(stationID);
556	Toast.makeText(StationList.this, "Station added", Toast.LENGTH_SHORT).show();
557	} else {
558	favorites.remove(stationID);
559	Toast.makeText(StationList.this, "Station removed", Toast.LENGTH_SHORT).show();
560	}
561	Editor ed = prefs.edit();
562	ed.putString("favorites", favorites.toString());
563	ed.commit();
564	}
565	}
566	}