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_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);
                        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_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();     
        }
        

        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) { 
                                String addr = lookupAddress(station.getLatitude(), station.getLongitude());
                                station.setAddress(addr);
                                
                                
                                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	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_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(R.string.app_name);
139	switch (listType) {
140	case ListNearest:
141	dialogTitle += " - Nearby stations";
142	break;
143	case ListSearch:
144	dialogTitle += " - Search";
145	break;
146	case ListFavorites:
147	dialogTitle += " - 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, "Station map");
176	item.setIcon(android.R.drawable.ic_menu_mapmode);
177
178	item = menu.add(0, OPTIONS_GPSINFO, 0, "GPS Info");
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	intent.putExtra("userlocation", location );
194
195	ArrayList<GeoPair> stationPoints = new ArrayList<GeoPair>();
196	for (StationBean st : stations ) {
197	stationPoints.add( new GeoPair(st.getLatitude(), st.getLongitude(), st.getName()) );
198	}
199
200	intent.putExtra("stations", stationPoints);
201
202	startActivity(intent);
203	break;
204	case OPTIONS_GPSINFO:
205	Location loc = locationLookup.getLocation();
206	StringBuffer message = new StringBuffer();
207	message.append("Location info:\n");
208	message.append("-Obtained by: ").append(loc != null ? loc.getProvider() : "-").append("\n");
209	message.append("-Accuracy: ").append(loc != null ? (int)loc.getAccuracy() : "-").append("m\n");
210
211	MessageBox.showMessage(this, message.toString());
212	break;
213	default:
214	retval = super.onOptionsItemSelected(item);
215	}
216
217	return retval;
218	}
219
220
221
222	@Override
223	public boolean onContextItemSelected(MenuItem item) {
224	contextMenu.onContextItemSelected(item);
225	return true;
226
227
228	}
229
230
231
232
233	@Override
234	protected Dialog onCreateDialog(int id) {
235	switch (id) {
236	case DLG_PROGRESS:
237	ProgressDialog dlg = new ProgressDialog(this);
238	dlg.setMessage("Wait for location fix");
239	dlg.setCancelable(false);
240	return dlg;
241	case DLG_STATIONNAME:
242	LayoutInflater factory = LayoutInflater.from(this);
243	final View rootView = factory.inflate(R.layout.textinput, null);
244
245
246	AlertDialog.Builder builder = new AlertDialog.Builder(this);
247
248	builder.setTitle("Station search");
249	builder.setView(rootView);
250	builder.setCancelable(true);
251	builder.setPositiveButton("Search", new DialogInterface.OnClickListener() {
252	public void onClick(DialogInterface dialog, int which) {
253	EditText et = (EditText) rootView.findViewById(R.id.EditText);
254	dialog.dismiss();
255	if (et.getText().toString().length() >= 2) {
256	startNameSearch(et.getText().toString());
257	} else {
258	MessageBox.showMessage(StationList.this, "Two characters minimum" );
259	}
260	}
261	});
262	builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
263	public void onClick(DialogInterface dialog, int which) {
264	dialog.dismiss();
265	}
266	});
267	return builder.create();
268
269	default:
270	return super.onCreateDialog(id);
271	}
272
273	}
274
275
276	@Override
277	protected void onPrepareDialog(int id, Dialog dialog) {
278	super.onPrepareDialog(id, dialog);
279	switch (id) {
280	case DLG_PROGRESS:
281	this.dialog = (ProgressDialog) dialog;
282	if (!dialogMessage.equals("")) {
283	this.dialog.setMessage(dialogMessage);
284	dialogMessage = "";
285	}
286	break;
287	}
288	}
289
290	@Override
291	protected void onListItemClick(ListView l, View v, int position, long id) {
292	super.onListItemClick(l, v, position, id);
293
294	StationBean station = stations.get(position);
295
296	double latitude = station.getLatitude();
297	double longitude = station.getLongitude();
298
299
300
301	Intent intent = new Intent(this, DepartureList.class);
302	intent.putExtra("name", station.getName());
303	intent.putExtra("distance", station.getDistance());
304	intent.putExtra("latitude", latitude);
305	intent.putExtra("longitude", longitude);
306	intent.putExtra("stationid", station.getId());
307	intent.putExtra("address", station.getAddress());
308	startActivity(intent);
309	}
310
311	/////////////////////////////////////////////////////////////
312	//
313
314	public void startLookup() {
315	isRunning = true;
316	dialogMessage = "Wait for location fix";
317	showDialog(DLG_PROGRESS);
318
319	locationLookup.locateStations();
320	stationsFetched.sendEmptyMessageDelayed(LOCATIONFIXTIMEOUT, 20000);
321	}
322
323	void startNameSearch(String name) {
324	dialogMessage = "Finding stations by name";
325	showDialog(DLG_PROGRESS);
326
327	findStationsTask = new FindStationsTask();
328	findStationsTask.searchByName(name, locationLookup.getLocation());
329	findStationsTask.execute();
330
331	}
332
333	public void startFavoriteLookup() {
334
335	if (favorites.size() > 0) {
336	dialogMessage = "Loading favorites";
337	showDialog(DLG_PROGRESS);
338
339	findStationsTask = new FindStationsTask();
340	findStationsTask.searchByIds(favorites.toString(), locationLookup.getLocation());
341	findStationsTask.execute();
342	} else {
343	MessageBox.showMessage(this, "Favorite list is empty");
344	}
345	}
346
347
348
349	void startLocatorTask()
350	{
351	dialogMessage = "Finding nearby stations";
352	showDialog(DLG_PROGRESS);
353
354	findStationsTask = new FindStationsTask();
355	findStationsTask.searchByLocation( locationLookup.getLocation() );
356	findStationsTask.execute();
357	}
358
359
360	String lookupAddress(double latitude, double longitude) {
361
362	Geocoder coder = new Geocoder(this, new Locale("da"));
363	StringBuilder sb = new StringBuilder();
364	Log.i("lookupaddr", "" + latitude + "/" + longitude);
365	try {
366	List<Address> addressList = coder.getFromLocation(latitude, longitude, 1);
367	Address addr = addressList.get(0);
368
369
370	int max = addr.getMaxAddressLineIndex();
371	for (int i=0; i<max; i++) {
372	if (i>0)
373	sb.append(", ");
374
375	sb.append(addr.getAddressLine(i));
376	}
377
378
379	} catch (Exception e) {
380	Log.e("DepartureList", "geocoder failed", e);
381	}
382
383	return sb.toString();
384	}
385
386
387	////////////////////////////////////////////////////////////////////////////
388	// Inner classes
389
390	class StationsFetchedHandler extends Handler {
391	@Override
392	public void handleMessage(Message msg) {
393
394	switch (msg.what) {
395	case GOTLOCATION:
396	dismissDialog(DLG_PROGRESS);
397
398	startLocatorTask();
399	location = GeoPair.fromLocation( locationLookup.getLocation() );
400
401	break;
402
403	case NOPROVIDER:
404	dismissDialog(DLG_PROGRESS);
405	MessageBox.showMessage(StationList.this,"No location provider enabled. Plase enable gps.");
406	break;
407	case LOCATIONFIXTIMEOUT:
408	if (isRunning) {
409	locationLookup.stopSearch();
410	if (locationLookup.hasLocation()) {
411	stationsFetched.sendEmptyMessage( GOTLOCATION );
412	} else {
413	dismissDialog(DLG_PROGRESS);
414
415	AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);
416	builder.setMessage("Location fix timed out");
417	builder.setCancelable(true);
418	builder.setPositiveButton("Retry", new DialogInterface.OnClickListener() {
419	public void onClick(DialogInterface dialog, int id) {
420	dialog.dismiss();
421	startLookup();
422
423	}
424	});
425	builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
426	public void onClick(DialogInterface dialog, int id) {
427	dialog.dismiss();
428	}
429	});
430	builder.show();
431
432	}
433	}
434	break;
435	}
436	isRunning = false;
437	}
438	};
439
440
441	class FindStationsTask extends AsyncTask<Void,Void,Void> {
442
443	LookupMethod method = LookupMethod.MethodNone;
444	boolean success;
445	String name;
446	Location loc;
447	String ids;
448
449	public void searchByName(String n, Location l) {
450
451	method = LookupMethod.ByName;
452	loc = l;
453	name = n;
454	}
455
456	public void searchByLocation(Location l) {
457	method = LookupMethod.ByLocation;
458	loc = l;
459	}
460
461	public void searchByIds(String id, Location l) {
462
463	method = LookupMethod.ByList;
464	loc = l;
465	ids = id;
466	}
467
468	@Override
469	protected void onPreExecute() {
470
471	if (method.equals(LookupMethod.MethodNone))
472	throw new RuntimeException("Method not set");
473	super.onPreExecute();
474	}
475
476	@Override
477	protected Void doInBackground(Void... params) {
478
479	switch (method) {
480	case ByLocation:
481	success = stationProvider.lookupStations(loc);
482	break;
483	case ByName:
484	success = stationProvider.lookupStationsByName(name);
485	break;
486	case ByList:
487	success = stationProvider.lookupStationsByIds(ids);
488	break;
489	default:
490	success = false; // not possible
491	}
492
493
494	Location dummy = new Location("gps");
495	List<StationBean> stations = stationProvider.getStations();
496
497	for (StationBean station : stations) {
498	String addr = lookupAddress(station.getLatitude(), station.getLongitude());
499	station.setAddress(addr);
500
501
502	if (method.equals(LookupMethod.ByName) \|\| method.equals(LookupMethod.ByList)) {
503	if (loc != null) { //only do the distance calc if we have a location
504	dummy.setLatitude(station.getLatitude());
505	dummy.setLongitude(station.getLongitude());
506	station.setDistance( (int)loc.distanceTo(dummy) );
507	} else {
508	station.setDistance(0);
509	}
510	}
511
512	}
513
514	return null;
515	}
516
517	@Override
518	protected void onPostExecute(Void result) {
519	super.onPostExecute(result);
520	dialog.dismiss();
521
522
523	if (success) {
524	if (stationProvider.getStations().size() == 0)
525	MessageBox.showMessage(StationList.this, "No stations found!"); // this should not be possible !?!
526	stations = stationProvider.getStations();
527	adapter.setStations( stations );
528
529	} else { //communication or parse errors
530	AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);
531	builder.setMessage("Error on finding nearby stations");
532	builder.setCancelable(true);
533	builder.setPositiveButton("Retry", new DialogInterface.OnClickListener() {
534	public void onClick(DialogInterface dialog, int id) {
535	dialog.dismiss();
536
537	stationsFetched.post( new Runnable() {
538	@Override
539	public void run() {
540	startLocatorTask();
541	}
542	});
543	}
544	});
545	builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
546	public void onClick(DialogInterface dialog, int id) {
547	dialog.dismiss();
548	}
549	});
550	builder.show();
551	}
552	}
553	}
554
555
556	class FavoritesMenu implements OnCreateContextMenuListener {
557	private final static int FAVORITES_ADD = 9001;
558	private final static int FAVORITES_REMOVE = 9002;
559
560	private int selectedPosition;
561
562
563	@Override
564	public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
565
566	AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo) menuInfo;
567	selectedPosition = info.position;
568	int stationID = stations.get(selectedPosition).getId();
569
570	if (!favorites.contains(stationID)) {
571	menu.add(0, FAVORITES_ADD, 0, "Add to favorites");
572	} else {
573	menu.add(0, FAVORITES_REMOVE, 0, "Remove from favorites");
574	}
575
576	}
577
578	public void onContextItemSelected(MenuItem item) {
579	StationBean sb = stations.get(selectedPosition);
580
581	int stationID = sb.getId();
582	if (item.getItemId() == FAVORITES_ADD) {
583	favorites.add(stationID);
584	Toast.makeText(StationList.this, "Station added", Toast.LENGTH_SHORT).show();
585	} else {
586
587	favorites.remove(stationID);
588	Toast.makeText(StationList.this, "Station removed", Toast.LENGTH_SHORT).show();
589
590
591	if (listType.equals( WelcomeScreen.ListType.ListFavorites) ) {
592	stations.remove(selectedPosition);
593	adapter.notifyDataSetChanged();
594	}
595	}
596	Editor ed = prefs.edit();
597	ed.putString("favorites", favorites.toString());
598	ed.commit();
599	}
600	}
601	}