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