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;

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(R.string.app_name);
                switch (listType) {
                case ListNearest:
                        dialogTitle += " - Nearby stations";
                        break;
                case ListSearch:
                        dialogTitle += " - Search";
                        break;
                case ListFavorites:
                        dialogTitle += " - 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, "Station map");
                item.setIcon(android.R.drawable.ic_menu_mapmode);
                
                item = menu.add(0, OPTIONS_GPSINFO, 0, "GPS Info");
                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("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);
                
                locationLookup.locateStations();
                stationsFetched.sendEmptyMessageDelayed(LOCATIONFIXTIMEOUT, 20000);
        }
        
        void startNameSearch(String name) {
                dialogMessage = "Finding stations by name";
                showDialog(DLG_PROGRESS);

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

                        findStationsTask = new FindStationsTask();
                        findStationsTask.searchByIds(favorites.toString(), locationLookup.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( locationLookup.getLocation() );
                findStationsTask.execute();     
        }
        

        /* TODO: Remove this no longer needed function
        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( locationLookup.getLocation() );
                                
                                break;

                        case NOPROVIDER:
                                dismissDialog(DLG_PROGRESS);
                                MessageBox.showMessage(StationList.this,"No location provider enabled. Plase enable gps.");
                                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("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) {

                        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        
                        }
                        
                        
                        Location dummy = new Location("gps");
                        List<StationBean> stations = stationProvider.getStations();
                        
                        for (StationBean station : stations) { 
                                                                
                                if (method.equals(LookupMethod.ByName) || method.equals(LookupMethod.ByList)) {
                                        if (loc != null) { //only do the distance calc if we have a location
                                                dummy.setLatitude(station.getLatitude());
                                                dummy.setLongitude(station.getLongitude());
                                                station.setDistance( (int)loc.distanceTo(dummy) );
                                        } else {
                                                station.setDistance(0);
                                        }
                                }

                        }                                               
                        
                        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();
                                
                                
                                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	public class StationList extends ListActivity {
40	public static final int GOTLOCATION = 1001;
41	public static final int GOTSTATIONLIST = 1002;
42	public static final int NOPROVIDER = 1003;
43	public static final int LOCATIONFIXTIMEOUT = 1004;
44
45	public static final int OPTIONS_MAP = 2003;
46	public static final int OPTIONS_GPSINFO = 2004;
47
48
49
50
51	public static final int DLG_PROGRESS = 3001;
52	public static final int DLG_STATIONNAME = 3002;
53
54	static enum LookupMethod {
55	ByLocation,
56	ByName,
57	ByList,
58	MethodNone
59	}
60
61
62	String dialogMessage = "";
63	ProgressDialog dialog;
64	LocationLookup locationLookup = null;
65	FindStationsTask findStationsTask;
66	StationsFetchedHandler stationsFetched = new StationsFetchedHandler();
67
68	GeoPair location = new GeoPair();
69
70	boolean isRunning = false;
71	List<StationBean> stations = new ArrayList<StationBean>();
72
73	StationProvider stationProvider = ProviderFactory.getStationProvider();
74
75	StationListAdapter adapter = null;
76
77	FavoritesMenu contextMenu = new FavoritesMenu();
78	IntSet favorites = new IntSet();
79
80	WelcomeScreen.ListType listType;
81	SharedPreferences prefs;
82
83	///////////////////////////////////////////////////////////////////////////////////////////
84	//Activity call backs
85
86	@SuppressWarnings("unchecked")
87	@Override
88	public void onCreate(Bundle savedInstanceState) {
89	super.onCreate(savedInstanceState);
90	setContentView(R.layout.stationlist);
91
92
93	adapter = new StationListAdapter(this);
94	setListAdapter(adapter);
95
96	ListView lv = getListView();
97	lv.setOnCreateContextMenuListener(contextMenu);
98
99	locationLookup = new LocationLookup(this, stationsFetched);
100
101
102	prefs = getSharedPreferences("TrainStation", 0);
103	String favoriteString = prefs.getString("favorites", "");
104	if (! favoriteString.equals("") ) {
105	favorites.fromString(favoriteString);
106	}
107
108	listType = (WelcomeScreen.ListType) getIntent().getSerializableExtra("type");
109	setTitle();
110
111	if (savedInstanceState == null) {
112
113
114	switch (listType) {
115	case ListNearest:
116	startLookup();
117	break;
118	case ListSearch:
119	this.showDialog(DLG_STATIONNAME);
120	break;
121	case ListFavorites:
122	startFavoriteLookup();
123	break;
124	default:
125	// Not possible !?!
126	}
127
128	} else {
129	stations = (ArrayList<StationBean>) savedInstanceState.getSerializable("stations");
130	adapter.setStations(stations);
131	location = (GeoPair) savedInstanceState.getSerializable("location");
132	}
133
134	}
135	protected void setTitle() {
136	String dialogTitle = getResources().getString(R.string.app_name);
137	switch (listType) {
138	case ListNearest:
139	dialogTitle += " - Nearby stations";
140	break;
141	case ListSearch:
142	dialogTitle += " - Search";
143	break;
144	case ListFavorites:
145	dialogTitle += " - Favorites";
146	break;
147	default:
148	dialogTitle = "";//not possible
149	}
150
151	setTitle(dialogTitle);
152	}
153
154
155
156
157	@Override
158	public void onSaveInstanceState(Bundle outState)
159	{
160	if (dialog != null && dialog.isShowing())
161	dialog.dismiss();
162	outState.putSerializable("stations", (ArrayList<StationBean>) stations);
163	outState.putSerializable("location", location);
164
165	}
166
167
168
169	@Override
170	public boolean onCreateOptionsMenu(Menu menu) {
171	MenuItem item;
172
173	item = menu.add(0, OPTIONS_MAP, 0, "Station map");
174	item.setIcon(android.R.drawable.ic_menu_mapmode);
175
176	item = menu.add(0, OPTIONS_GPSINFO, 0, "GPS Info");
177	item.setIcon(android.R.drawable.ic_menu_mapmode);
178
179	return true;
180	}
181
182	@Override
183	public boolean onOptionsItemSelected(MenuItem item) {
184	boolean retval = true;
185
186	//TODO: Cleanup
187	switch (item.getItemId()) {
188	case OPTIONS_MAP:
189
190	Intent intent = new Intent(this,StationMapView.class);
191
192	ArrayList<GeoPair> stationPoints = new ArrayList<GeoPair>();
193	for (StationBean st : stations ) {
194	stationPoints.add( new GeoPair(st.getLatitude(), st.getLongitude(), st.getName()) );
195	}
196
197	intent.putExtra("stations", stationPoints);
198
199	startActivity(intent);
200	break;
201	case OPTIONS_GPSINFO:
202	Location loc = locationLookup.getLocation();
203	StringBuffer message = new StringBuffer();
204	message.append("Location info:\n");
205	message.append("-Obtained by: ").append(loc != null ? loc.getProvider() : "-").append("\n");
206	message.append("-Accuracy: ").append(loc != null ? (int)loc.getAccuracy() : "-").append("m\n");
207
208	MessageBox.showMessage(this, message.toString());
209	break;
210	default:
211	retval = super.onOptionsItemSelected(item);
212	}
213
214	return retval;
215	}
216
217
218
219	@Override
220	public boolean onContextItemSelected(MenuItem item) {
221	contextMenu.onContextItemSelected(item);
222	return true;
223
224
225	}
226
227
228
229
230	@Override
231	protected Dialog onCreateDialog(int id) {
232	switch (id) {
233	case DLG_PROGRESS:
234	ProgressDialog dlg = new ProgressDialog(this);
235	dlg.setMessage("Wait for location fix");
236	dlg.setCancelable(false);
237	return dlg;
238	case DLG_STATIONNAME:
239	LayoutInflater factory = LayoutInflater.from(this);
240	final View rootView = factory.inflate(R.layout.textinput, null);
241
242
243	AlertDialog.Builder builder = new AlertDialog.Builder(this);
244
245	builder.setTitle("Station search");
246	builder.setView(rootView);
247	builder.setCancelable(true);
248	builder.setPositiveButton("Search", new DialogInterface.OnClickListener() {
249	public void onClick(DialogInterface dialog, int which) {
250	EditText et = (EditText) rootView.findViewById(R.id.EditText);
251	dialog.dismiss();
252	if (et.getText().toString().length() >= 2) {
253	startNameSearch(et.getText().toString());
254	} else {
255	MessageBox.showMessage(StationList.this, "Two characters minimum" );
256	}
257	}
258	});
259	builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
260	public void onClick(DialogInterface dialog, int which) {
261	dialog.dismiss();
262	}
263	});
264	return builder.create();
265
266	default:
267	return super.onCreateDialog(id);
268	}
269
270	}
271
272
273	@Override
274	protected void onPrepareDialog(int id, Dialog dialog) {
275	super.onPrepareDialog(id, dialog);
276	switch (id) {
277	case DLG_PROGRESS:
278	this.dialog = (ProgressDialog) dialog;
279	if (!dialogMessage.equals("")) {
280	this.dialog.setMessage(dialogMessage);
281	dialogMessage = "";
282	}
283	break;
284	}
285	}
286
287	@Override
288	protected void onListItemClick(ListView l, View v, int position, long id) {
289	super.onListItemClick(l, v, position, id);
290
291	StationBean station = stations.get(position);
292
293	double latitude = station.getLatitude();
294	double longitude = station.getLongitude();
295
296
297
298	Intent intent = new Intent(this, DepartureList.class);
299	intent.putExtra("name", station.getName());
300	intent.putExtra("distance", station.getDistance());
301	intent.putExtra("latitude", latitude);
302	intent.putExtra("longitude", longitude);
303	intent.putExtra("stationid", station.getId());
304	intent.putExtra("address", station.getAddress());
305	startActivity(intent);
306	}
307
308	/////////////////////////////////////////////////////////////
309	//
310
311	public void startLookup() {
312	isRunning = true;
313	dialogMessage = "Wait for location fix";
314	showDialog(DLG_PROGRESS);
315
316	locationLookup.locateStations();
317	stationsFetched.sendEmptyMessageDelayed(LOCATIONFIXTIMEOUT, 20000);
318	}
319
320	void startNameSearch(String name) {
321	dialogMessage = "Finding stations by name";
322	showDialog(DLG_PROGRESS);
323
324	findStationsTask = new FindStationsTask();
325	findStationsTask.searchByName(name, locationLookup.getLocation());
326	findStationsTask.execute();
327
328	}
329
330	public void startFavoriteLookup() {
331
332	if (favorites.size() > 0) {
333	dialogMessage = "Loading favorites";
334	showDialog(DLG_PROGRESS);
335
336	findStationsTask = new FindStationsTask();
337	findStationsTask.searchByIds(favorites.toString(), locationLookup.getLocation());
338	findStationsTask.execute();
339	} else {
340	MessageBox.showMessage(this, "Favorite list is empty");
341	}
342	}
343
344
345
346	void startLocatorTask()
347	{
348	dialogMessage = "Finding nearby stations";
349	showDialog(DLG_PROGRESS);
350
351	findStationsTask = new FindStationsTask();
352	findStationsTask.searchByLocation( locationLookup.getLocation() );
353	findStationsTask.execute();
354	}
355
356
357	/* TODO: Remove this no longer needed function
358	String lookupAddress(double latitude, double longitude) {
359
360	Geocoder coder = new Geocoder(this, new Locale("da"));
361	StringBuilder sb = new StringBuilder();
362	Log.i("lookupaddr", "" + latitude + "/" + longitude);
363	try {
364	List<Address> addressList = coder.getFromLocation(latitude, longitude, 1);
365	Address addr = addressList.get(0);
366
367
368	int max = addr.getMaxAddressLineIndex();
369	for (int i=0; i<max; i++) {
370	if (i>0)
371	sb.append(", ");
372
373	sb.append(addr.getAddressLine(i));
374	}
375
376
377	} catch (Exception e) {
378	Log.e("DepartureList", "geocoder failed", e);
379	}
380
381	return sb.toString();
382	}*/
383
384
385	////////////////////////////////////////////////////////////////////////////
386	// Inner classes
387
388	class StationsFetchedHandler extends Handler {
389	@Override
390	public void handleMessage(Message msg) {
391
392	switch (msg.what) {
393	case GOTLOCATION:
394	dismissDialog(DLG_PROGRESS);
395
396	startLocatorTask();
397	location = GeoPair.fromLocation( locationLookup.getLocation() );
398
399	break;
400
401	case NOPROVIDER:
402	dismissDialog(DLG_PROGRESS);
403	MessageBox.showMessage(StationList.this,"No location provider enabled. Plase enable gps.");
404	break;
405	case LOCATIONFIXTIMEOUT:
406	if (isRunning) {
407	locationLookup.stopSearch();
408	if (locationLookup.hasLocation()) {
409	stationsFetched.sendEmptyMessage( GOTLOCATION );
410	} else {
411	dismissDialog(DLG_PROGRESS);
412
413	AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);
414	builder.setMessage("Location fix timed out");
415	builder.setCancelable(true);
416	builder.setPositiveButton("Retry", new DialogInterface.OnClickListener() {
417	public void onClick(DialogInterface dialog, int id) {
418	dialog.dismiss();
419	startLookup();
420
421	}
422	});
423	builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
424	public void onClick(DialogInterface dialog, int id) {
425	dialog.dismiss();
426	}
427	});
428	builder.show();
429
430	}
431	}
432	break;
433	}
434	isRunning = false;
435	}
436	};
437
438
439	class FindStationsTask extends AsyncTask<Void,Void,Void> {
440
441	LookupMethod method = LookupMethod.MethodNone;
442	boolean success;
443	String name;
444	Location loc;
445	String ids;
446
447	public void searchByName(String n, Location l) {
448
449	method = LookupMethod.ByName;
450	loc = l;
451	name = n;
452	}
453
454	public void searchByLocation(Location l) {
455	method = LookupMethod.ByLocation;
456	loc = l;
457	}
458
459	public void searchByIds(String id, Location l) {
460
461	method = LookupMethod.ByList;
462	loc = l;
463	ids = id;
464	}
465
466	@Override
467	protected void onPreExecute() {
468
469	if (method.equals(LookupMethod.MethodNone))
470	throw new RuntimeException("Method not set");
471	super.onPreExecute();
472	}
473
474	@Override
475	protected Void doInBackground(Void... params) {
476
477	switch (method) {
478	case ByLocation:
479	success = stationProvider.lookupStations(loc);
480	break;
481	case ByName:
482	success = stationProvider.lookupStationsByName(name);
483	break;
484	case ByList:
485	success = stationProvider.lookupStationsByIds(ids);
486	break;
487	default:
488	success = false; // not possible
489	}
490
491
492	Location dummy = new Location("gps");
493	List<StationBean> stations = stationProvider.getStations();
494
495	for (StationBean station : stations) {
496
497	if (method.equals(LookupMethod.ByName) \|\| method.equals(LookupMethod.ByList)) {
498	if (loc != null) { //only do the distance calc if we have a location
499	dummy.setLatitude(station.getLatitude());
500	dummy.setLongitude(station.getLongitude());
501	station.setDistance( (int)loc.distanceTo(dummy) );
502	} else {
503	station.setDistance(0);
504	}
505	}
506
507	}
508
509	return null;
510	}
511
512	@Override
513	protected void onPostExecute(Void result) {
514	super.onPostExecute(result);
515	dialog.dismiss();
516
517
518	if (success) {
519	if (stationProvider.getStations().size() == 0)
520	MessageBox.showMessage(StationList.this, "No stations found!"); // this should not be possible !?!
521	stations = stationProvider.getStations();
522	adapter.setStations( stations );
523
524	} else { //communication or parse errors
525	AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);
526	builder.setMessage("Error on finding nearby stations");
527	builder.setCancelable(true);
528	builder.setPositiveButton("Retry", new DialogInterface.OnClickListener() {
529	public void onClick(DialogInterface dialog, int id) {
530	dialog.dismiss();
531
532	stationsFetched.post( new Runnable() {
533	@Override
534	public void run() {
535	startLocatorTask();
536	}
537	});
538	}
539	});
540	builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
541	public void onClick(DialogInterface dialog, int id) {
542	dialog.dismiss();
543	}
544	});
545	builder.show();
546	}
547	}
548	}
549
550
551	class FavoritesMenu implements OnCreateContextMenuListener {
552	private final static int FAVORITES_ADD = 9001;
553	private final static int FAVORITES_REMOVE = 9002;
554
555	private int selectedPosition;
556
557
558	@Override
559	public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
560
561	AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo) menuInfo;
562	selectedPosition = info.position;
563	int stationID = stations.get(selectedPosition).getId();
564
565	if (!favorites.contains(stationID)) {
566	menu.add(0, FAVORITES_ADD, 0, "Add to favorites");
567	} else {
568	menu.add(0, FAVORITES_REMOVE, 0, "Remove from favorites");
569	}
570
571	}
572
573	public void onContextItemSelected(MenuItem item) {
574	StationBean sb = stations.get(selectedPosition);
575
576	int stationID = sb.getId();
577	if (item.getItemId() == FAVORITES_ADD) {
578	favorites.add(stationID);
579	Toast.makeText(StationList.this, "Station added", Toast.LENGTH_SHORT).show();
580	} else {
581
582	favorites.remove(stationID);
583	Toast.makeText(StationList.this, "Station removed", Toast.LENGTH_SHORT).show();
584
585
586	if (listType.equals( WelcomeScreen.ListType.ListFavorites) ) {
587	stations.remove(selectedPosition);
588	adapter.notifyDataSetChanged();
589	}
590	}
591	Editor ed = prefs.edit();
592	ed.putString("favorites", favorites.toString());
593	ed.commit();
594	}
595	}
596	}