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 locator = null;
        FindStationsTask findStationsTask;
        StationsFetchedHandler stationsFetched = new StationsFetchedHandler();
        
        GeoPair location = new GeoPair();
        
        boolean isRunning = false;
        List<StationBean> stations = new ArrayList<StationBean>();
        
        StationProvider stationProvider = ProviderFactory.getStationProvider();
                
        StationListAdapter adapter = null;
        
        FavoritesMenu contextMenu = new FavoritesMenu();
        IntSet favorites = new IntSet();

        WelcomeScreen.ListType listType;
        String dialogTitle;
        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);
                
                locator = new LocationLookup(this, stationsFetched);
                

                prefs = getSharedPreferences("TrainStation", 0);
                String favoriteString = prefs.getString("favorites", "");
                if (! favoriteString.equals("") ) {
                        favorites.fromString(favoriteString);
                }
                
                if (savedInstanceState == null) {
                        listType = (WelcomeScreen.ListType) getIntent().getSerializableExtra("type");
                        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");
                        dialogTitle = savedInstanceState.getString("title");
                        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);
        outState.putString("title", dialogTitle);
    }
        
        
        @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 = locator.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);
                
                locator.locateStations();
                stationsFetched.sendEmptyMessageDelayed(LOCATIONFIXTIMEOUT, 20000);
        }
        
        void startNameSearch(String name) {
                dialogMessage = "Finding stations by name";
                showDialog(DLG_PROGRESS);

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

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


        void startLocatorTask()
        {
                dialogMessage = "Finding nearby stations"; 
                showDialog(DLG_PROGRESS);
                
                findStationsTask = new FindStationsTask();
                findStationsTask.searchByLocation( locator.getLocation() );
                findStationsTask.execute();     
        }
        

        String lookupAddress(double latitude, double longitude) {
                
                Geocoder coder = new Geocoder(this, new Locale("da"));
                StringBuilder sb = new StringBuilder();
                Log.i("lookupaddr", "" + latitude + "/" + longitude);
                try {
                        List<Address> addressList = coder.getFromLocation(latitude, longitude, 1);
                        Address addr = addressList.get(0);
                        
                        
                        int max = addr.getMaxAddressLineIndex();
                        for (int i=0; i<max; i++) {
                                if (i>0)
                                        sb.append(", ");
                                
                                sb.append(addr.getAddressLine(i));
                        }
                        
                        
                } catch (Exception e) {
                        Log.e("DepartureList", "geocoder failed", e);
                }
                
                return sb.toString();
        }
        
        
        ////////////////////////////////////////////////////////////////////////////
        // Inner classes

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

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

                        case NOPROVIDER:
                                dismissDialog(DLG_PROGRESS);
                                MessageBox.showMessage(StationList.this,"No location provider enabled. Plase enable gps.");
                                break;
                        case LOCATIONFIXTIMEOUT:                                
                                if (isRunning) {
                                        locator.stopSearch();
                                        if (locator.hasLocation()) {
                                                stationsFetched.sendEmptyMessage( GOTLOCATION ); 
                                        } else {                                                
                                                dismissDialog(DLG_PROGRESS);
                                                
                                                AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);                                                
                                                builder.setMessage("Location fix timed out");
                                                builder.setCancelable(true);
                                                builder.setPositiveButton("Retry", new DialogInterface.OnClickListener() {
                                                        public void onClick(DialogInterface dialog, int id) {
                                                                dialog.dismiss();
                                                                startLookup();
                                                                
                                                        }
                                                });
                                                builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
                                                        public void onClick(DialogInterface dialog, int id) {
                                                                dialog.dismiss();
                                                        }                                                       
                                                });                                                                                             
                                                builder.show();

                                        }
                                }
                                break;
                        }
                        isRunning = false;
                }
        };

        
        class FindStationsTask extends AsyncTask<Void,Void,Void> {
                
                LookupMethod method = LookupMethod.MethodNone;
                boolean success;
                String name;
                Location loc;
                String ids;
                
                public void searchByName(String n, Location l) {
                        
                        method = LookupMethod.ByName;
                        loc = l;
                        name = n;
                }
                
                public void searchByLocation(Location l) {
                        method = LookupMethod.ByLocation;
                        loc = l;
                }
                
                public void searchByIds(String id, Location l) {
                        
                        method = LookupMethod.ByList;
                        loc = l;
                        ids = id;
                }
                
                @Override
                protected void onPreExecute() {

                        if (method.equals(LookupMethod.MethodNone))
                                throw new RuntimeException("Method not set");
                        super.onPreExecute();
                }
                
                @Override
                protected Void doInBackground(Void... params) {

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