thoerup/traininfo/StationList.java

package dk.thoerup.traininfo;

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


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.Location;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;

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;

import static dk.thoerup.traininfo.R.string.*;

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_MAP = 2003;
        public static final int OPTIONS_GPSINFO = 2004;

        
        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 locationLookup = 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();

        WelcomeScreen.ListType listType;
        SharedPreferences prefs;
        
        ///////////////////////////////////////////////////////////////////////////////////////////
        //Activity call backs
        
        @SuppressWarnings("unchecked")
        @Override
        public void onCreate(Bundle savedInstanceState) {
                super.onCreate(savedInstanceState);
                setContentView(R.layout.stationlist);
                
                
                adapter = new StationListAdapter(this);
                setListAdapter(adapter);
                
                ListView lv = getListView();
                lv.setOnCreateContextMenuListener(contextMenu);
                
                locationLookup = new LocationLookup(this, stationsFetched);
                

                prefs = getSharedPreferences("TrainStation", 0);
                String favoriteString = prefs.getString("favorites", "");
                if (! favoriteString.equals("") ) {
                        favorites.fromString(favoriteString);
                }
                
                listType = (WelcomeScreen.ListType) getIntent().getSerializableExtra("type");
                setTitle();
                
                if (savedInstanceState == null) {

                        
                        switch (listType) {
                        case ListNearest:
                                startLookup();
                                break;
                        case ListSearch:
                                this.showDialog(DLG_STATIONNAME);
                                break;
                        case ListFavorites:
                                startFavoriteLookup();
                                break;
                        default:
                                // Not possible !?!
                        }
                        
                } else {
                        stations = (ArrayList<StationBean>) savedInstanceState.getSerializable("stations");
                        adapter.setStations(stations);
                        location = (GeoPair) savedInstanceState.getSerializable("location");
                }
                
        }
        protected void setTitle() {
                String dialogTitle = getResources().getString(app_name);
                switch (listType) {
                case ListNearest:
                        dialogTitle += " - " + getString(stationlist_nearbystations);
                        break;
                case ListSearch:
                        dialogTitle += " - " + getString(stationlist_search);
                        break;
                case ListFavorites:
                        dialogTitle += " - " + getString(stationlist_favorites);
                        break;
                default:
                        dialogTitle = "";//not possible                                 
                }
        
                setTitle(dialogTitle);
        }
        
        
    @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_MAP, 0, getString(stationlist_stationmap));
                item.setIcon(android.R.drawable.ic_menu_mapmode);
                
                item = menu.add(0, OPTIONS_GPSINFO, 0, getString(stationlist_gpsinfo));
                item.setIcon(android.R.drawable.ic_menu_mapmode);               
                
                return true;
        }

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

                //TODO: Cleanup
                switch (item.getItemId()) {
                case OPTIONS_MAP:
                        
                        Intent intent = new Intent(this,StationMapView.class);
                        
                        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_GPSINFO:
                        Location loc = locationLookup.getLocation();
                        StringBuffer message = new StringBuffer();
                        message.append( getString(stationlist_locationinfo) ).append(":\n");
                        if (loc != null) {
                                message.append( getString(stationlist_obtainedby) ).append( loc.getProvider() ).append("\n");
                                message.append( getString(stationlist_accuracy) ).append( (int)loc.getAccuracy()).append("m\n");
                                message.append( getString(stationlist_latitude) ).append( (float)loc.getLatitude()).append("\n");
                                message.append( getString(stationlist_longitude) ).append( (float)loc.getLongitude() ).append("\n");
                        } else {
                                message.append( getString(stationlist_nolocation) );
                        }                       
                        
                        MessageBox.showMessage(this, message.toString());
                        break;
                default:
                        retval = super.onOptionsItemSelected(item);
                }
                
                return retval;
        }
        
        
        @Override
        public boolean onContextItemSelected(MenuItem item) {
                contextMenu.onContextItemSelected(item);
                return true;


        }
        
        public void showMessageAndClose(String message) {
                AlertDialog.Builder builder = new AlertDialog.Builder(this);
                builder.setMessage(message)
                .setCancelable(false)
                .setPositiveButton("OK", new DialogInterface.OnClickListener() {
                        public void onClick(DialogInterface dialog, int id) {
                                dialog.dismiss();
                                StationList.this.finish();
                        }
                })
                .show();
        }


        @Override
        protected Dialog onCreateDialog(int id) {
                switch (id) {
                case DLG_PROGRESS:
                        ProgressDialog dlg = new ProgressDialog(this);
                        dlg.setMessage( getString(stationlist_waitforlocation) );
                        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( getString(stationlist_stationsearch) );
                        builder.setView(rootView);
                        builder.setCancelable(true);
                        builder.setPositiveButton( getString(generic_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 {
                                                showMessageAndClose( getString(stationlist_twocharmin) );
                                        }
                                }
                        });
                        builder.setNegativeButton(getString(generic_cancel), new DialogInterface.OnClickListener() {
                                public void onClick(DialogInterface dialog, int which) {
                                        dialog.dismiss();
                                        StationList.this.finish(); // Close this Activity
                                }
                        });                     
                        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);
                
                Intent intent = new Intent(this, DepartureList.class);
                intent.putExtra("stationbean", station);
                startActivity(intent);
        }

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

        public void startLookup() {
                isRunning = true;               
                dialogMessage = getString( stationlist_waitforlocation );
                showDialog(DLG_PROGRESS);
                
                locationLookup.locateStations();
                stationsFetched.sendEmptyMessageDelayed(LOCATIONFIXTIMEOUT, 20000);
        }
        
        void startNameSearch(String name) {
                dialogMessage = getString( stationlist_findbyname );
                showDialog(DLG_PROGRESS);

                findStationsTask = new FindStationsTask();
                findStationsTask.searchByName(name);
                findStationsTask.execute();
                
        }
        
        public void startFavoriteLookup() {
                
                if (favorites.size() > 0) {
                        dialogMessage = getString( stationlist_loadfavorites );
                        showDialog(DLG_PROGRESS);

                        findStationsTask = new FindStationsTask();
                        findStationsTask.searchByIds( favorites.toString() );
                        findStationsTask.execute();
                } else {
                        showMessageAndClose( getString( stationlist_nofavorites ) );
                }
        }


        void startLocatorTask()
        {
                dialogMessage = getString( stationlist_findingnearby ); 
                showDialog(DLG_PROGRESS);
                
                findStationsTask = new FindStationsTask();
                findStationsTask.searchByLocation( locationLookup.getLocation() );
                findStationsTask.execute();     
        }
                
        
        ////////////////////////////////////////////////////////////////////////////
        // Inner classes

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

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

                        case NOPROVIDER:
                                dismissDialog(DLG_PROGRESS);
                                MessageBox.showMessage(StationList.this, getString(stationlist_nolocationprovider) );
                                break;
                        case LOCATIONFIXTIMEOUT:                                
                                if (isRunning) {
                                        locationLookup.stopSearch();
                                        if (locationLookup.hasLocation()) {
                                                stationsFetched.sendEmptyMessage( GOTLOCATION ); 
                                        } else {                                                
                                                dismissDialog(DLG_PROGRESS);
                                                
                                                AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);                                                
                                                builder.setMessage(  getString( stationlist_gpstimeout) );
                                                builder.setCancelable(true);
                                                builder.setPositiveButton(getString(generic_retry), new DialogInterface.OnClickListener() {
                                                        public void onClick(DialogInterface dialog, int id) {
                                                                dialog.dismiss();
                                                                startLookup();
                                                                
                                                        }
                                                });
                                                builder.setNegativeButton( getString(generic_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) {
                        
                        method = LookupMethod.ByName;
                        name = n;
                }
                
                public void searchByLocation(Location l) {
                        method = LookupMethod.ByLocation;
                        loc = l;
                }
                
                public void searchByIds(String id) {
                        
                        method = LookupMethod.ByList;
                        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) {

                        switch (method) {
                        case ByLocation:
                                success = stationProvider.lookupStations(loc);
                                break;
                        case ByName:
                                success = stationProvider.lookupStationsByName(name);
                                break;
                        case ByList:
                                success = stationProvider.lookupStationsByIds(ids);
                                break;
                        default:
                                success = false; // not possible        
                        }
                        
                        
                        return null;
                }

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