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_RESCAN = 2001;
        public static final int OPTIONS_NAMESEARCH = 2002;
        public static final int OPTIONS_MAP = 2003;
        public static final int OPTIONS_ABOUT = 2004;
        public static final int OPTIONS_FAVORITES = 2005;
        

        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();
        
        boolean showingFavorites = false;
        String dialogTitle;
        SharedPreferences prefs;
        
        ///////////////////////////////////////////////////////////////////////////////////////////
        //Activity call backs
        
        @SuppressWarnings("unchecked")
        @Override
        public void onCreate(Bundle savedInstanceState) {
                super.onCreate(savedInstanceState);
                setContentView(R.layout.main);
                
                
                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) {
                        startLookup();
                } 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_RESCAN, 0, "Nearest stations");
                item.setIcon(android.R.drawable.ic_menu_mylocation);
                
                item = menu.add(0, OPTIONS_NAMESEARCH, 0, "Search for station");
                item.setIcon(android.R.drawable.ic_menu_search);
                
                item = menu.add(0, OPTIONS_FAVORITES, 0, "Favorites");
                item.setIcon(android.R.drawable.ic_menu_agenda);
                
                item = menu.add(0, OPTIONS_MAP, 0, "Station map");
                item.setIcon(android.R.drawable.ic_menu_mapmode);
                
                item = menu.add(0, OPTIONS_ABOUT, 0, "About");
                item.setIcon(android.R.drawable.ic_menu_info_details);
                return true;
        }

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

                
                switch (item.getItemId()) {
                case OPTIONS_RESCAN:
                        startLookup();
                        break;
                case OPTIONS_NAMESEARCH:
                        showDialog(DLG_STATIONNAME);
                        break;
                case OPTIONS_FAVORITES:
                        startFavoriteLookup();
                        break;
                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_ABOUT:
                        String ver = this.getResources().getString(R.string.app_version);
                        
                        Location loc = locator.getLocation();
                        StringBuffer message = new StringBuffer();
                        message.append("TrainInfo DK v").append(ver).append("\n");
                        message.append("By Torben Nielsen\n");
                        message.append("\n");
                        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 );
                                
                                showingFavorites = method.equals(LookupMethod.ByList);                          
                                
                        } 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 (showingFavorites) {
                                        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_RESCAN = 2001;
48	public static final int OPTIONS_NAMESEARCH = 2002;
49	public static final int OPTIONS_MAP = 2003;
50	public static final int OPTIONS_ABOUT = 2004;
51	public static final int OPTIONS_FAVORITES = 2005;
52
53
54
55	public static final int DLG_PROGRESS = 3001;
56	public static final int DLG_STATIONNAME = 3002;
57
58	static enum LookupMethod {
59	ByLocation,
60	ByName,
61	ByList,
62	MethodNone
63	}
64
65
66	String dialogMessage = "";
67	ProgressDialog dialog;
68	LocationLookup locator = null;
69	FindStationsTask findStationsTask;
70	StationsFetchedHandler stationsFetched = new StationsFetchedHandler();
71
72	GeoPair location = new GeoPair();
73
74	boolean isRunning = false;
75	List<StationBean> stations = new ArrayList<StationBean>();
76
77	StationProvider stationProvider = ProviderFactory.getStationProvider();
78
79	StationListAdapter adapter = null;
80
81	FavoritesMenu contextMenu = new FavoritesMenu();
82	IntSet favorites = new IntSet();
83
84	boolean showingFavorites = false;
85	String dialogTitle;
86	SharedPreferences prefs;
87
88	///////////////////////////////////////////////////////////////////////////////////////////
89	//Activity call backs
90
91	@SuppressWarnings("unchecked")
92	@Override
93	public void onCreate(Bundle savedInstanceState) {
94	super.onCreate(savedInstanceState);
95	setContentView(R.layout.main);
96
97
98	adapter = new StationListAdapter(this);
99	setListAdapter(adapter);
100
101	ListView lv = getListView();
102	lv.setOnCreateContextMenuListener(contextMenu);
103
104	locator = new LocationLookup(this, stationsFetched);
105
106
107	prefs = getSharedPreferences("TrainStation", 0);
108	String favoriteString = prefs.getString("favorites", "");
109	if (! favoriteString.equals("") ) {
110	favorites.fromString(favoriteString);
111	}
112
113	if (savedInstanceState == null) {
114	startLookup();
115	} else {
116	stations = (ArrayList<StationBean>) savedInstanceState.getSerializable("stations");
117	adapter.setStations(stations);
118	location = (GeoPair) savedInstanceState.getSerializable("location");
119	dialogTitle = savedInstanceState.getString("title");
120	setTitle(dialogTitle);
121	}
122	}
123
124
125	@Override
126	public void onSaveInstanceState(Bundle outState)
127	{
128	if (dialog != null && dialog.isShowing())
129	dialog.dismiss();
130	outState.putSerializable("stations", (ArrayList<StationBean>) stations);
131	outState.putSerializable("location", location);
132	outState.putString("title", dialogTitle);
133	}
134
135
136
137	@Override
138	public boolean onCreateOptionsMenu(Menu menu) {
139	MenuItem item;
140
141	item = menu.add(0, OPTIONS_RESCAN, 0, "Nearest stations");
142	item.setIcon(android.R.drawable.ic_menu_mylocation);
143
144	item = menu.add(0, OPTIONS_NAMESEARCH, 0, "Search for station");
145	item.setIcon(android.R.drawable.ic_menu_search);
146
147	item = menu.add(0, OPTIONS_FAVORITES, 0, "Favorites");
148	item.setIcon(android.R.drawable.ic_menu_agenda);
149
150	item = menu.add(0, OPTIONS_MAP, 0, "Station map");
151	item.setIcon(android.R.drawable.ic_menu_mapmode);
152
153	item = menu.add(0, OPTIONS_ABOUT, 0, "About");
154	item.setIcon(android.R.drawable.ic_menu_info_details);
155	return true;
156	}
157
158	@Override
159	public boolean onOptionsItemSelected(MenuItem item) {
160	boolean retval = true;
161
162
163	switch (item.getItemId()) {
164	case OPTIONS_RESCAN:
165	startLookup();
166	break;
167	case OPTIONS_NAMESEARCH:
168	showDialog(DLG_STATIONNAME);
169	break;
170	case OPTIONS_FAVORITES:
171	startFavoriteLookup();
172	break;
173	case OPTIONS_MAP:
174
175	Intent intent = new Intent(this,StationMapView.class);
176	intent.putExtra("userlocation", location );
177
178	ArrayList<GeoPair> stationPoints = new ArrayList<GeoPair>();
179	for (StationBean st : stations ) {
180	stationPoints.add( new GeoPair(st.getLatitude(), st.getLongitude(), st.getName()) );
181	}
182
183	intent.putExtra("stations", stationPoints);
184
185	startActivity(intent);
186	break;
187	case OPTIONS_ABOUT:
188	String ver = this.getResources().getString(R.string.app_version);
189
190	Location loc = locator.getLocation();
191	StringBuffer message = new StringBuffer();
192	message.append("TrainInfo DK v").append(ver).append("\n");
193	message.append("By Torben Nielsen\n");
194	message.append("\n");
195	message.append("Location info:\n");
196	message.append("-Obtained by: ").append(loc != null ? loc.getProvider() : "-").append("\n");
197	message.append("-Accuracy: ").append(loc != null ? (int)loc.getAccuracy() : "-").append("m\n");
198
199	MessageBox.showMessage(this, message.toString());
200	break;
201	default:
202	retval = super.onOptionsItemSelected(item);
203	}
204
205	return retval;
206	}
207
208
209
210	@Override
211	public boolean onContextItemSelected(MenuItem item) {
212	contextMenu.onContextItemSelected(item);
213	return true;
214
215
216	}
217
218
219
220
221	@Override
222	protected Dialog onCreateDialog(int id) {
223	switch (id) {
224	case DLG_PROGRESS:
225	ProgressDialog dlg = new ProgressDialog(this);
226	dlg.setMessage("Wait for location fix");
227	dlg.setCancelable(false);
228	return dlg;
229	case DLG_STATIONNAME:
230	LayoutInflater factory = LayoutInflater.from(this);
231	final View rootView = factory.inflate(R.layout.textinput, null);
232
233
234	AlertDialog.Builder builder = new AlertDialog.Builder(this);
235
236	builder.setTitle("Station search");
237	builder.setView(rootView);
238	builder.setCancelable(true);
239	builder.setPositiveButton("Search", new DialogInterface.OnClickListener() {
240	public void onClick(DialogInterface dialog, int which) {
241	EditText et = (EditText) rootView.findViewById(R.id.EditText);
242	dialog.dismiss();
243	if (et.getText().toString().length() >= 2) {
244	startNameSearch(et.getText().toString());
245	} else {
246	MessageBox.showMessage(StationList.this, "Two characters minimum" );
247	}
248	}
249	});
250	builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
251	public void onClick(DialogInterface dialog, int which) {
252	dialog.dismiss();
253	}
254	});
255	return builder.create();
256
257	default:
258	return super.onCreateDialog(id);
259	}
260
261	}
262
263
264	@Override
265	protected void onPrepareDialog(int id, Dialog dialog) {
266	super.onPrepareDialog(id, dialog);
267	switch (id) {
268	case DLG_PROGRESS:
269	this.dialog = (ProgressDialog) dialog;
270	if (!dialogMessage.equals("")) {
271	this.dialog.setMessage(dialogMessage);
272	dialogMessage = "";
273	}
274	break;
275	}
276	}
277
278	@Override
279	protected void onListItemClick(ListView l, View v, int position, long id) {
280	super.onListItemClick(l, v, position, id);
281
282	StationBean station = stations.get(position);
283
284	double latitude = station.getLatitude();
285	double longitude = station.getLongitude();
286
287
288
289	Intent intent = new Intent(this, DepartureList.class);
290	intent.putExtra("name", station.getName());
291	intent.putExtra("distance", station.getDistance());
292	intent.putExtra("latitude", latitude);
293	intent.putExtra("longitude", longitude);
294	intent.putExtra("stationid", station.getId());
295	intent.putExtra("address", station.getAddress());
296	startActivity(intent);
297	}
298
299	/////////////////////////////////////////////////////////////
300	//
301
302	public void startLookup() {
303	isRunning = true;
304	dialogMessage = "Wait for location fix";
305	showDialog(DLG_PROGRESS);
306
307	locator.locateStations();
308	stationsFetched.sendEmptyMessageDelayed(LOCATIONFIXTIMEOUT, 20000);
309	}
310
311	void startNameSearch(String name) {
312	dialogMessage = "Finding stations by name";
313	showDialog(DLG_PROGRESS);
314
315	findStationsTask = new FindStationsTask();
316	findStationsTask.searchByName(name, locator.getLocation());
317	findStationsTask.execute();
318
319	}
320
321	public void startFavoriteLookup() {
322
323	if (favorites.size() > 0) {
324	dialogMessage = "Loading favorites";
325	showDialog(DLG_PROGRESS);
326
327	findStationsTask = new FindStationsTask();
328	findStationsTask.searchByIds(favorites.toString(), locator.getLocation());
329	findStationsTask.execute();
330	} else {
331	MessageBox.showMessage(this, "Favorite list is empty");
332	}
333	}
334
335
336
337	void startLocatorTask()
338	{
339	dialogMessage = "Finding nearby stations";
340	showDialog(DLG_PROGRESS);
341
342	findStationsTask = new FindStationsTask();
343	findStationsTask.searchByLocation( locator.getLocation() );
344	findStationsTask.execute();
345	}
346
347
348	String lookupAddress(double latitude, double longitude) {
349
350	Geocoder coder = new Geocoder(this, new Locale("da"));
351	StringBuilder sb = new StringBuilder();
352	Log.i("lookupaddr", "" + latitude + "/" + longitude);
353	try {
354	List<Address> addressList = coder.getFromLocation(latitude, longitude, 1);
355	Address addr = addressList.get(0);
356
357
358	int max = addr.getMaxAddressLineIndex();
359	for (int i=0; i<max; i++) {
360	if (i>0)
361	sb.append(", ");
362
363	sb.append(addr.getAddressLine(i));
364	}
365
366
367	} catch (Exception e) {
368	Log.e("DepartureList", "geocoder failed", e);
369	}
370
371	return sb.toString();
372	}
373
374
375	////////////////////////////////////////////////////////////////////////////
376	// Inner classes
377
378	class StationsFetchedHandler extends Handler {
379	@Override
380	public void handleMessage(Message msg) {
381
382	switch (msg.what) {
383	case GOTLOCATION:
384	dismissDialog(DLG_PROGRESS);
385
386	startLocatorTask();
387	location = GeoPair.fromLocation( locator.getLocation() );
388
389	break;
390
391	case NOPROVIDER:
392	dismissDialog(DLG_PROGRESS);
393	MessageBox.showMessage(StationList.this,"No location provider enabled. Plase enable gps.");
394	break;
395	case LOCATIONFIXTIMEOUT:
396	if (isRunning) {
397	locator.stopSearch();
398	if (locator.hasLocation()) {
399	stationsFetched.sendEmptyMessage( GOTLOCATION );
400	} else {
401	dismissDialog(DLG_PROGRESS);
402
403	AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);
404	builder.setMessage("Location fix timed out");
405	builder.setCancelable(true);
406	builder.setPositiveButton("Retry", new DialogInterface.OnClickListener() {
407	public void onClick(DialogInterface dialog, int id) {
408	dialog.dismiss();
409	startLookup();
410
411	}
412	});
413	builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
414	public void onClick(DialogInterface dialog, int id) {
415	dialog.dismiss();
416	}
417	});
418	builder.show();
419
420	}
421	}
422	break;
423	}
424	isRunning = false;
425	}
426	};
427
428
429	class FindStationsTask extends AsyncTask<Void,Void,Void> {
430
431	LookupMethod method = LookupMethod.MethodNone;
432	boolean success;
433	String name;
434	Location loc;
435	String ids;
436
437	public void searchByName(String n, Location l) {
438
439	method = LookupMethod.ByName;
440	loc = l;
441	name = n;
442	}
443
444	public void searchByLocation(Location l) {
445	method = LookupMethod.ByLocation;
446	loc = l;
447	}
448
449	public void searchByIds(String id, Location l) {
450
451	method = LookupMethod.ByList;
452	loc = l;
453	ids = id;
454	}
455
456	@Override
457	protected void onPreExecute() {
458
459	if (method.equals(LookupMethod.MethodNone))
460	throw new RuntimeException("Method not set");
461	super.onPreExecute();
462	}
463
464	@Override
465	protected Void doInBackground(Void... params) {
466
467	switch (method) {
468	case ByLocation:
469	success = stationProvider.lookupStations(loc);
470	break;
471	case ByName:
472	success = stationProvider.lookupStationsByName(name);
473	break;
474	case ByList:
475	success = stationProvider.lookupStationsByIds(ids);
476	break;
477	default:
478	success = false; // not possible
479	}
480
481
482	Location dummy = new Location("gps");
483	List<StationBean> stations = stationProvider.getStations();
484
485	for (StationBean station : stations) {
486	String addr = lookupAddress(station.getLatitude(), station.getLongitude());
487	station.setAddress(addr);
488
489
490	if (method.equals(LookupMethod.ByName) \|\| method.equals(LookupMethod.ByList)) {
491	if (loc != null) { //only do the distance calc if we have a location
492	dummy.setLatitude(station.getLatitude());
493	dummy.setLongitude(station.getLongitude());
494	station.setDistance( (int)loc.distanceTo(dummy) );
495	} else {
496	station.setDistance(0);
497	}
498	}
499
500	}
501
502	return null;
503	}
504
505	@Override
506	protected void onPostExecute(Void result) {
507	super.onPostExecute(result);
508	dialog.dismiss();
509
510	//set title
511	switch (method) {
512	case ByLocation:
513	dialogTitle = "Traininfo DK - Nearby stations";
514	break;
515	case ByName:
516	dialogTitle = "Traininfo DK - Search";
517	break;
518	case ByList:
519	dialogTitle = "Traininfo DK - Favorites";
520	break;
521	default:
522	dialogTitle = "";//not possible
523	}
524
525	StationList.this.setTitle(dialogTitle);
526	//set title end
527
528	if (success) {
529	if (stationProvider.getStations().size() == 0)
530	MessageBox.showMessage(StationList.this, "No stations found!"); // this should not be possible !?!
531	stations = stationProvider.getStations();
532	adapter.setStations( stations );
533
534	showingFavorites = method.equals(LookupMethod.ByList);
535
536	} else { //communication or parse errors
537	AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);
538	builder.setMessage("Error on finding nearby stations");
539	builder.setCancelable(true);
540	builder.setPositiveButton("Retry", new DialogInterface.OnClickListener() {
541	public void onClick(DialogInterface dialog, int id) {
542	dialog.dismiss();
543
544	stationsFetched.post( new Runnable() {
545	@Override
546	public void run() {
547	startLocatorTask();
548	}
549	});
550	}
551	});
552	builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
553	public void onClick(DialogInterface dialog, int id) {
554	dialog.dismiss();
555	}
556	});
557	builder.show();
558	}
559	}
560	}
561
562
563	class FavoritesMenu implements OnCreateContextMenuListener {
564	private final static int FAVORITES_ADD = 9001;
565	private final static int FAVORITES_REMOVE = 9002;
566
567	private int selectedPosition;
568
569
570	@Override
571	public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
572
573	AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo) menuInfo;
574	selectedPosition = info.position;
575	int stationID = stations.get(selectedPosition).getId();
576
577	if (!favorites.contains(stationID)) {
578	menu.add(0, FAVORITES_ADD, 0, "Add to favorites");
579	} else {
580	menu.add(0, FAVORITES_REMOVE, 0, "Remove from favorites");
581	}
582
583	}
584
585	public void onContextItemSelected(MenuItem item) {
586	StationBean sb = stations.get(selectedPosition);
587
588	int stationID = sb.getId();
589	if (item.getItemId() == FAVORITES_ADD) {
590	favorites.add(stationID);
591	Toast.makeText(StationList.this, "Station added", Toast.LENGTH_SHORT).show();
592	} else {
593
594	favorites.remove(stationID);
595	Toast.makeText(StationList.this, "Station removed", Toast.LENGTH_SHORT).show();
596
597	if (showingFavorites) {
598	stations.remove(selectedPosition);
599	adapter.notifyDataSetChanged();
600	}
601	}
602	Editor ed = prefs.edit();
603	ed.putString("favorites", favorites.toString());
604	ed.commit();
605	}
606	}
607	}