thoerup/traininfo/StationList.java

package dk.thoerup.traininfo;

import java.util.ArrayList;
import java.util.List;


import android.app.Activity;
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;

import static dk.thoerup.traininfo.R.string.*;

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;
        
        
        public static final int GPS_TIMEOUT_MS = 17500; //how long are we willing to wait for gps fix -in milliseconds
        
        
        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 isLaunchedforShortcut;
        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();
                
                isLaunchedforShortcut = getIntent().getBooleanExtra("shortcut", false);
                
                if (savedInstanceState == null) {

                        
                        switch (listType) {
                        case ListNearest:
                                startLookup();
                                break;
                        case ListSearch:                                
                                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");
                }
                
        }
        

        @Override
        protected void onDestroy() {
                super.onDestroy();
                
                if (findStationsTask != null) {
                        findStationsTask.cancel(true);
                }
                if (locationLookup != null) {
                        locationLookup.stopSearch();
                }
                isRunning = false;
        }

        
        protected void setTitle() {
                String dialogTitle = getResources().getString(app_name);
                switch (listType) {
                case ListNearest:
                        dialogTitle += " - " + getString(stationlist_nearbystations);
                        break;
                case ListSearch:
                        dialogTitle += " - " + getString(stationlist_search);
                        break;
                case ListFavorites:
                        dialogTitle += " - " + getString(stationlist_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, getString(stationlist_stationmap));
                item.setIcon(android.R.drawable.ic_menu_mapmode);
                
                item = menu.add(0, OPTIONS_GPSINFO, 0, getString(stationlist_gpsinfo));
                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( getString(stationlist_locationinfo) ).append(":\n");
                        if (loc != null) {
                                message.append( getString(stationlist_obtainedby) ).append( loc.getProvider() ).append("\n");
                                message.append( getString(stationlist_accuracy) ).append( (int)loc.getAccuracy()).append("m\n");
                                message.append( getString(stationlist_latitude) ).append( (float)loc.getLatitude()).append("\n");
                                message.append( getString(stationlist_longitude) ).append( (float)loc.getLongitude() ).append("\n");
                        } else {
                                message.append( getString(stationlist_nolocation) );
                        }                       
                        
                        MessageBox.showMessage(this, message.toString(), false);
                        break;
                default:
                        retval = super.onOptionsItemSelected(item);
                }
                
                return retval;
        }
        
        
        @Override
        public boolean onContextItemSelected(MenuItem item) {
                contextMenu.onContextItemSelected(item);
                return true;


        }
        
        public void showMessageAndClose(String message) {
                AlertDialog.Builder builder = new AlertDialog.Builder(this);
                builder.setMessage(message)
                .setCancelable(false)
                .setPositiveButton("OK", new DialogInterface.OnClickListener() {
                        public void onClick(DialogInterface dialog, int id) {
                                dialog.dismiss();
                                StationList.this.finish();
                        }
                })
                .show();
        }


        @Override
        protected Dialog onCreateDialog(int id) {
                switch (id) {
                case DLG_PROGRESS:
                        ProgressDialog dlg = new ProgressDialog(this);
                        dlg.setMessage( getString(stationlist_waitforlocation) );
                        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( getString(stationlist_stationsearch) );
                        builder.setView(rootView);
                        builder.setCancelable(true);
                        builder.setPositiveButton( getString(generic_search), new DialogInterface.OnClickListener() {
                                public void onClick(DialogInterface dialog, int which) {
                                        EditText et = (EditText) rootView.findViewById(R.id.EditText);
                                        dialog.dismiss();
                                        String search = et.getText().toString().trim();
                                        if (search.length() >= 2) {
                                                startNameSearch(search);
                                        } else {
                                                showMessageAndClose( getString(stationlist_twocharmin) );
                                        }
                                }
                        });
                        builder.setNegativeButton(getString(generic_cancel), new DialogInterface.OnClickListener() {
                                public void onClick(DialogInterface dialog, int which) {
                                        dialog.dismiss();
                                        StationList.this.finish(); // Close this Activity
                                }
                        });                     
                        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);
                
                if (isLaunchedforShortcut == true) {
                        Intent i = new Intent();
                        i.putExtra("station", station);
                        setResult(Activity.RESULT_OK, i);
                        finish();
                } else {                
                        Intent intent = new Intent(this, DepartureList.class);
                        intent.putExtra("stationbean", station);
                        startActivity(intent);
                }
        }

        /////////////////////////////////////////////////////////////
        //

        public void startLookup() {
                isRunning = true;               
                dialogMessage = getString( stationlist_waitforlocation );
                showDialog(DLG_PROGRESS);
                
                locationLookup.locateStations();
                stationsFetched.sendEmptyMessageDelayed(LOCATIONFIXTIMEOUT, GPS_TIMEOUT_MS);
        }
        
        void startNameSearch(String name) {
                dialogMessage = getString( stationlist_findbyname );
                showDialog(DLG_PROGRESS);

                findStationsTask = new FindStationsTask();
                findStationsTask.searchByName(name);
                findStationsTask.execute();
                
        }
        
        public void startFavoriteLookup() {
                
                if (favorites.size() > 0) {
                        dialogMessage = getString( stationlist_loadfavorites );
                        showDialog(DLG_PROGRESS);

                        findStationsTask = new FindStationsTask();
                        findStationsTask.searchByIds( favorites.toString() );
                        findStationsTask.execute();
                } else {
                        showMessageAndClose( getString( stationlist_nofavorites ) );
                }
        }


        void startLocatorTask()
        {
                dialogMessage = getString( stationlist_findingnearby ); 
                showDialog(DLG_PROGRESS);
                
                findStationsTask = new FindStationsTask();
                findStationsTask.searchByLocation( locationLookup.getLocation() );
                findStationsTask.execute();     
        }
                
        
        ////////////////////////////////////////////////////////////////////////////
        // 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, getString(stationlist_nolocationprovider), true );
                                //StationList.this.finish();
                                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(  getString( stationlist_gpstimeout) );
                                                builder.setCancelable(true);
                                                builder.setPositiveButton(getString(generic_retry), new DialogInterface.OnClickListener() {
                                                        public void onClick(DialogInterface dialog, int id) {
                                                                dialog.dismiss();
                                                                startLookup();
                                                                
                                                        }
                                                });
                                                builder.setNegativeButton( getString(generic_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;
                String name;
                Location loc;
                String ids;
                
                public void searchByName(String n) {
                        
                        method = LookupMethod.ByName;
                        name = n;
                }
                
                public void searchByLocation(Location l) {
                        method = LookupMethod.ByLocation;
                        loc = l;
                }
                
                public void searchByIds(String id) {
                        
                        method = LookupMethod.ByList;
                        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:
                                stations = stationProvider.lookupStations(loc);
                                break;
                        case ByName:
                                stations = stationProvider.lookupStationsByName(name);
                                break;
                        case ByList:
                                stations = stationProvider.lookupStationsByIds(ids);
                                break;
                        default:
                                stations = null; // not possible        
                        }
                        
                        
                        return null;
                }

                @Override
                protected void onPostExecute(Void result) {
                        super.onPostExecute(result);
                        dialog.dismiss();
                        
                        
                        if (stations != null) {                         
                                if (stations.size() == 0) {
                                        showMessageAndClose(getString(stationlist_nostations));
                                }

                                StationList.this.getListView().invalidateViews();
                                adapter.setStations( stations );                                
                                
                                
                        } else { //communication or parse errors
                                AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);                                                
                                builder.setMessage(getString(stationlist_fetcherror));                          
                                builder.setCancelable(true);
                                builder.setPositiveButton(getString(generic_retry), new DialogInterface.OnClickListener() {
                                        public void onClick(DialogInterface dialog, int id) {
                                                dialog.dismiss();
                                                
                                                Runnable runner = null;
                                                switch (method) {
                                                case ByLocation:
                                                        runner = new Runnable() {
                                                                @Override
                                                                public void run() {
                                                                        startLocatorTask();                                                             
                                                                }
                                                        };
                                                        break;
                                                case ByName:
                                                        runner = new Runnable() {
                                                                @Override
                                                                public void run() {
                                                                        startNameSearch( FindStationsTask.this.name );
                                                                }
                                                        };
                                                        break;
                                                case ByList:
                                                        runner = new Runnable() {
                                                                @Override
                                                                public void run() {
                                                                        startFavoriteLookup();
                                                                }
                                                        };
                                                        break;
                                                }
                                                
                                                stationsFetched.post( runner );
                                        }
                                });
                                builder.setNegativeButton(getString(generic_cancel), new DialogInterface.OnClickListener() {
                                        public void onClick(DialogInterface dialog, int id) {
                                                dialog.dismiss();
                                                StationList.this.finish();
                                        }                                                       
                                });
                                
                                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, getString(stationlist_addfavorite) );
                        } else {
                                menu.add(0, FAVORITES_REMOVE, 0, getString(stationlist_removefavorite) );
                        }
                        
                }
                
                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, getString(stationlist_stationadded), Toast.LENGTH_SHORT).show();
                        } else {
                                
                                favorites.remove(stationID);
                                Toast.makeText(StationList.this, getString(stationlist_stationremoved), 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.Activity;
8	import android.app.AlertDialog;
9	import android.app.Dialog;
10	import android.app.ListActivity;
11	import android.app.ProgressDialog;
12	import android.content.DialogInterface;
13	import android.content.Intent;
14	import android.content.SharedPreferences;
15	import android.content.SharedPreferences.Editor;
16	import android.location.Location;
17	import android.os.AsyncTask;
18	import android.os.Bundle;
19	import android.os.Handler;
20	import android.os.Message;
21
22	import android.view.ContextMenu;
23	import android.view.LayoutInflater;
24	import android.view.Menu;
25	import android.view.MenuItem;
26	import android.view.View;
27	import android.view.ContextMenu.ContextMenuInfo;
28	import android.view.View.OnCreateContextMenuListener;
29	import android.widget.AdapterView;
30	import android.widget.EditText;
31	import android.widget.ListView;
32	import android.widget.Toast;
33	import dk.thoerup.traininfo.provider.ProviderFactory;
34	import dk.thoerup.traininfo.provider.StationProvider;
35	import dk.thoerup.traininfo.stationmap.GeoPair;
36	import dk.thoerup.traininfo.stationmap.StationMapView;
37	import dk.thoerup.traininfo.util.IntSet;
38	import dk.thoerup.traininfo.util.MessageBox;
39
40	import static dk.thoerup.traininfo.R.string.*;
41
42	public class StationList extends ListActivity {
43	public static final int GOTLOCATION = 1001;
44	public static final int GOTSTATIONLIST = 1002;
45	public static final int NOPROVIDER = 1003;
46	public static final int LOCATIONFIXTIMEOUT = 1004;
47
48	public static final int OPTIONS_MAP = 2003;
49	public static final int OPTIONS_GPSINFO = 2004;
50
51	public static final int DLG_PROGRESS = 3001;
52	public static final int DLG_STATIONNAME = 3002;
53
54
55	public static final int GPS_TIMEOUT_MS = 17500; //how long are we willing to wait for gps fix -in milliseconds
56
57
58	static enum LookupMethod {
59	ByLocation,
60	ByName,
61	ByList,
62	MethodNone
63	}
64
65
66	String dialogMessage = "";
67	ProgressDialog dialog;
68	LocationLookup locationLookup = null;
69	FindStationsTask findStationsTask;
70	StationsFetchedHandler stationsFetched = new StationsFetchedHandler();
71
72	GeoPair location = new GeoPair();
73
74	boolean isLaunchedforShortcut;
75	boolean isRunning = false;
76	List<StationBean> stations = new ArrayList<StationBean>();
77
78	StationProvider stationProvider = ProviderFactory.getStationProvider();
79
80	StationListAdapter adapter = null;
81
82	FavoritesMenu contextMenu = new FavoritesMenu();
83	IntSet favorites = new IntSet();
84
85	WelcomeScreen.ListType listType;
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.stationlist);
96
97
98	adapter = new StationListAdapter(this);
99	setListAdapter(adapter);
100
101	ListView lv = getListView();
102	lv.setOnCreateContextMenuListener(contextMenu);
103
104	locationLookup = 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	listType = (WelcomeScreen.ListType) getIntent().getSerializableExtra("type");
114	setTitle();
115
116	isLaunchedforShortcut = getIntent().getBooleanExtra("shortcut", false);
117
118	if (savedInstanceState == null) {
119
120
121	switch (listType) {
122	case ListNearest:
123	startLookup();
124	break;
125	case ListSearch:
126	showDialog(DLG_STATIONNAME);
127	break;
128	case ListFavorites:
129	startFavoriteLookup();
130	break;
131	default:
132	// Not possible !?!
133	}
134
135	} else {
136	stations = (ArrayList<StationBean>) savedInstanceState.getSerializable("stations");
137	adapter.setStations(stations);
138	location = (GeoPair) savedInstanceState.getSerializable("location");
139	}
140
141	}
142
143
144	@Override
145	protected void onDestroy() {
146	super.onDestroy();
147
148	if (findStationsTask != null) {
149	findStationsTask.cancel(true);
150	}
151	if (locationLookup != null) {
152	locationLookup.stopSearch();
153	}
154	isRunning = false;
155	}
156
157
158	protected void setTitle() {
159	String dialogTitle = getResources().getString(app_name);
160	switch (listType) {
161	case ListNearest:
162	dialogTitle += " - " + getString(stationlist_nearbystations);
163	break;
164	case ListSearch:
165	dialogTitle += " - " + getString(stationlist_search);
166	break;
167	case ListFavorites:
168	dialogTitle += " - " + getString(stationlist_favorites);
169	break;
170	default:
171	dialogTitle = "";//not possible
172	}
173
174	setTitle(dialogTitle);
175
176	}
177
178
179
180	@Override
181	public void onSaveInstanceState(Bundle outState)
182	{
183	if (dialog != null && dialog.isShowing())
184	dialog.dismiss();
185	outState.putSerializable("stations", (ArrayList<StationBean>) stations);
186	outState.putSerializable("location", location);
187
188	}
189
190
191
192	@Override
193	public boolean onCreateOptionsMenu(Menu menu) {
194	MenuItem item;
195
196	item = menu.add(0, OPTIONS_MAP, 0, getString(stationlist_stationmap));
197	item.setIcon(android.R.drawable.ic_menu_mapmode);
198
199	item = menu.add(0, OPTIONS_GPSINFO, 0, getString(stationlist_gpsinfo));
200	item.setIcon(android.R.drawable.ic_menu_mapmode);
201
202	return true;
203	}
204
205	@Override
206	public boolean onOptionsItemSelected(MenuItem item) {
207	boolean retval = true;
208
209	//TODO: Cleanup
210	switch (item.getItemId()) {
211	case OPTIONS_MAP:
212
213	Intent intent = new Intent(this,StationMapView.class);
214
215	ArrayList<GeoPair> stationPoints = new ArrayList<GeoPair>();
216	for (StationBean st : stations ) {
217	stationPoints.add( new GeoPair(st.getLatitude(), st.getLongitude(), st.getName()) );
218	}
219
220	intent.putExtra("stations", stationPoints);
221
222	startActivity(intent);
223	break;
224	case OPTIONS_GPSINFO:
225	Location loc = locationLookup.getLocation();
226	StringBuffer message = new StringBuffer();
227	message.append( getString(stationlist_locationinfo) ).append(":\n");
228	if (loc != null) {
229	message.append( getString(stationlist_obtainedby) ).append( loc.getProvider() ).append("\n");
230	message.append( getString(stationlist_accuracy) ).append( (int)loc.getAccuracy()).append("m\n");
231	message.append( getString(stationlist_latitude) ).append( (float)loc.getLatitude()).append("\n");
232	message.append( getString(stationlist_longitude) ).append( (float)loc.getLongitude() ).append("\n");
233	} else {
234	message.append( getString(stationlist_nolocation) );
235	}
236
237	MessageBox.showMessage(this, message.toString(), false);
238	break;
239	default:
240	retval = super.onOptionsItemSelected(item);
241	}
242
243	return retval;
244	}
245
246
247
248	@Override
249	public boolean onContextItemSelected(MenuItem item) {
250	contextMenu.onContextItemSelected(item);
251	return true;
252
253
254	}
255
256	public void showMessageAndClose(String message) {
257	AlertDialog.Builder builder = new AlertDialog.Builder(this);
258	builder.setMessage(message)
259	.setCancelable(false)
260	.setPositiveButton("OK", new DialogInterface.OnClickListener() {
261	public void onClick(DialogInterface dialog, int id) {
262	dialog.dismiss();
263	StationList.this.finish();
264	}
265	})
266	.show();
267	}
268
269
270
271
272	@Override
273	protected Dialog onCreateDialog(int id) {
274	switch (id) {
275	case DLG_PROGRESS:
276	ProgressDialog dlg = new ProgressDialog(this);
277	dlg.setMessage( getString(stationlist_waitforlocation) );
278	dlg.setCancelable(false);
279	return dlg;
280	case DLG_STATIONNAME:
281	LayoutInflater factory = LayoutInflater.from(this);
282	final View rootView = factory.inflate(R.layout.textinput, null);
283
284
285	AlertDialog.Builder builder = new AlertDialog.Builder(this);
286
287	builder.setTitle( getString(stationlist_stationsearch) );
288	builder.setView(rootView);
289	builder.setCancelable(true);
290	builder.setPositiveButton( getString(generic_search), new DialogInterface.OnClickListener() {
291	public void onClick(DialogInterface dialog, int which) {
292	EditText et = (EditText) rootView.findViewById(R.id.EditText);
293	dialog.dismiss();
294	String search = et.getText().toString().trim();
295	if (search.length() >= 2) {
296	startNameSearch(search);
297	} else {
298	showMessageAndClose( getString(stationlist_twocharmin) );
299	}
300	}
301	});
302	builder.setNegativeButton(getString(generic_cancel), new DialogInterface.OnClickListener() {
303	public void onClick(DialogInterface dialog, int which) {
304	dialog.dismiss();
305	StationList.this.finish(); // Close this Activity
306	}
307	});
308	return builder.create();
309
310	default:
311	return super.onCreateDialog(id);
312	}
313
314	}
315
316
317	@Override
318	protected void onPrepareDialog(int id, Dialog dialog) {
319	super.onPrepareDialog(id, dialog);
320	switch (id) {
321	case DLG_PROGRESS:
322	this.dialog = (ProgressDialog) dialog;
323	if (!dialogMessage.equals("")) {
324	this.dialog.setMessage(dialogMessage);
325	dialogMessage = "";
326	}
327	break;
328	}
329	}
330
331	@Override
332	protected void onListItemClick(ListView l, View v, int position, long id) {
333	super.onListItemClick(l, v, position, id);
334
335	StationBean station = stations.get(position);
336
337	if (isLaunchedforShortcut == true) {
338	Intent i = new Intent();
339	i.putExtra("station", station);
340	setResult(Activity.RESULT_OK, i);
341	finish();
342	} else {
343	Intent intent = new Intent(this, DepartureList.class);
344	intent.putExtra("stationbean", station);
345	startActivity(intent);
346	}
347	}
348
349	/////////////////////////////////////////////////////////////
350	//
351
352	public void startLookup() {
353	isRunning = true;
354	dialogMessage = getString( stationlist_waitforlocation );
355	showDialog(DLG_PROGRESS);
356
357	locationLookup.locateStations();
358	stationsFetched.sendEmptyMessageDelayed(LOCATIONFIXTIMEOUT, GPS_TIMEOUT_MS);
359	}
360
361	void startNameSearch(String name) {
362	dialogMessage = getString( stationlist_findbyname );
363	showDialog(DLG_PROGRESS);
364
365	findStationsTask = new FindStationsTask();
366	findStationsTask.searchByName(name);
367	findStationsTask.execute();
368
369	}
370
371	public void startFavoriteLookup() {
372
373	if (favorites.size() > 0) {
374	dialogMessage = getString( stationlist_loadfavorites );
375	showDialog(DLG_PROGRESS);
376
377	findStationsTask = new FindStationsTask();
378	findStationsTask.searchByIds( favorites.toString() );
379	findStationsTask.execute();
380	} else {
381	showMessageAndClose( getString( stationlist_nofavorites ) );
382	}
383	}
384
385
386
387	void startLocatorTask()
388	{
389	dialogMessage = getString( stationlist_findingnearby );
390	showDialog(DLG_PROGRESS);
391
392	findStationsTask = new FindStationsTask();
393	findStationsTask.searchByLocation( locationLookup.getLocation() );
394	findStationsTask.execute();
395	}
396
397
398	////////////////////////////////////////////////////////////////////////////
399	// Inner classes
400
401	class StationsFetchedHandler extends Handler {
402	@Override
403	public void handleMessage(Message msg) {
404
405	switch (msg.what) {
406	case GOTLOCATION:
407	dismissDialog(DLG_PROGRESS);
408
409	startLocatorTask();
410	location = GeoPair.fromLocation( locationLookup.getLocation() );
411
412	break;
413
414	case NOPROVIDER:
415	dismissDialog(DLG_PROGRESS);
416	MessageBox.showMessage(StationList.this, getString(stationlist_nolocationprovider), true );
417	//StationList.this.finish();
418	break;
419	case LOCATIONFIXTIMEOUT:
420	if (isRunning) {
421	locationLookup.stopSearch();
422	if (locationLookup.hasLocation()) {
423	stationsFetched.sendEmptyMessage( GOTLOCATION );
424	} else {
425	dismissDialog(DLG_PROGRESS);
426
427	AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);
428	builder.setMessage( getString( stationlist_gpstimeout) );
429	builder.setCancelable(true);
430	builder.setPositiveButton(getString(generic_retry), new DialogInterface.OnClickListener() {
431	public void onClick(DialogInterface dialog, int id) {
432	dialog.dismiss();
433	startLookup();
434
435	}
436	});
437	builder.setNegativeButton( getString(generic_cancel), new DialogInterface.OnClickListener() {
438	public void onClick(DialogInterface dialog, int id) {
439	dialog.dismiss();
440	}
441	});
442	builder.show();
443
444	}
445	}
446	break;
447	}
448	isRunning = false;
449	}
450	};
451
452
453	class FindStationsTask extends AsyncTask<Void,Void,Void> {
454
455	LookupMethod method = LookupMethod.MethodNone;
456	String name;
457	Location loc;
458	String ids;
459
460	public void searchByName(String n) {
461
462	method = LookupMethod.ByName;
463	name = n;
464	}
465
466	public void searchByLocation(Location l) {
467	method = LookupMethod.ByLocation;
468	loc = l;
469	}
470
471	public void searchByIds(String id) {
472
473	method = LookupMethod.ByList;
474	ids = id;
475	}
476
477	@Override
478	protected void onPreExecute() {
479
480	if (method.equals(LookupMethod.MethodNone))
481	throw new RuntimeException("Method not set");
482	super.onPreExecute();
483	}
484
485	@Override
486	protected Void doInBackground(Void... params) {
487
488	switch (method) {
489	case ByLocation:
490	stations = stationProvider.lookupStations(loc);
491	break;
492	case ByName:
493	stations = stationProvider.lookupStationsByName(name);
494	break;
495	case ByList:
496	stations = stationProvider.lookupStationsByIds(ids);
497	break;
498	default:
499	stations = null; // not possible
500	}
501
502
503	return null;
504	}
505
506	@Override
507	protected void onPostExecute(Void result) {
508	super.onPostExecute(result);
509	dialog.dismiss();
510
511
512	if (stations != null) {
513	if (stations.size() == 0) {
514	showMessageAndClose(getString(stationlist_nostations));
515	}
516
517	StationList.this.getListView().invalidateViews();
518	adapter.setStations( stations );
519
520
521	} else { //communication or parse errors
522	AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);
523	builder.setMessage(getString(stationlist_fetcherror));
524	builder.setCancelable(true);
525	builder.setPositiveButton(getString(generic_retry), new DialogInterface.OnClickListener() {
526	public void onClick(DialogInterface dialog, int id) {
527	dialog.dismiss();
528
529	Runnable runner = null;
530	switch (method) {
531	case ByLocation:
532	runner = new Runnable() {
533	@Override
534	public void run() {
535	startLocatorTask();
536	}
537	};
538	break;
539	case ByName:
540	runner = new Runnable() {
541	@Override
542	public void run() {
543	startNameSearch( FindStationsTask.this.name );
544	}
545	};
546	break;
547	case ByList:
548	runner = new Runnable() {
549	@Override
550	public void run() {
551	startFavoriteLookup();
552	}
553	};
554	break;
555	}
556
557	stationsFetched.post( runner );
558	}
559	});
560	builder.setNegativeButton(getString(generic_cancel), new DialogInterface.OnClickListener() {
561	public void onClick(DialogInterface dialog, int id) {
562	dialog.dismiss();
563	StationList.this.finish();
564	}
565	});
566
567	builder.show();
568	}
569	}
570	}
571
572
573	class FavoritesMenu implements OnCreateContextMenuListener {
574	private final static int FAVORITES_ADD = 9001;
575	private final static int FAVORITES_REMOVE = 9002;
576
577	private int selectedPosition;
578
579
580	@Override
581	public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
582
583	AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo) menuInfo;
584	selectedPosition = info.position;
585	int stationID = stations.get(selectedPosition).getId();
586
587	if (!favorites.contains(stationID)) {
588	menu.add(0, FAVORITES_ADD, 0, getString(stationlist_addfavorite) );
589	} else {
590	menu.add(0, FAVORITES_REMOVE, 0, getString(stationlist_removefavorite) );
591	}
592
593	}
594
595	public void onContextItemSelected(MenuItem item) {
596	StationBean sb = stations.get(selectedPosition);
597
598	int stationID = sb.getId();
599	if (item.getItemId() == FAVORITES_ADD) {
600	favorites.add(stationID);
601	Toast.makeText(StationList.this, getString(stationlist_stationadded), Toast.LENGTH_SHORT).show();
602	} else {
603
604	favorites.remove(stationID);
605	Toast.makeText(StationList.this, getString(stationlist_stationremoved), Toast.LENGTH_SHORT).show();
606
607
608	if (listType.equals( WelcomeScreen.ListType.ListFavorites) ) {
609	stations.remove(selectedPosition);
610	adapter.notifyDataSetChanged();
611	}
612	}
613	Editor ed = prefs.edit();
614	ed.putString("favorites", favorites.toString());
615	ed.commit();
616	}
617	}
618	}