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 = 15000; //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();
                
                isRunning = false;
                
                if (locationLookup != null) {
                        locationLookup.stopSearch();
                }
                if (findStationsTask != null) {
                        findStationsTask.cancel(true);
                }               
        }

        
        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 = 15000; //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	isRunning = false;
149
150	if (locationLookup != null) {
151	locationLookup.stopSearch();
152	}
153	if (findStationsTask != null) {
154	findStationsTask.cancel(true);
155	}
156	}
157
158
159	protected void setTitle() {
160	String dialogTitle = getResources().getString(app_name);
161	switch (listType) {
162	case ListNearest:
163	dialogTitle += " - " + getString(stationlist_nearbystations);
164	break;
165	case ListSearch:
166	dialogTitle += " - " + getString(stationlist_search);
167	break;
168	case ListFavorites:
169	dialogTitle += " - " + getString(stationlist_favorites);
170	break;
171	default:
172	dialogTitle = "";//not possible
173	}
174
175	setTitle(dialogTitle);
176
177	}
178
179
180
181	@Override
182	public void onSaveInstanceState(Bundle outState)
183	{
184	if (dialog != null && dialog.isShowing())
185	dialog.dismiss();
186	outState.putSerializable("stations", (ArrayList<StationBean>) stations);
187	outState.putSerializable("location", location);
188
189	}
190
191
192
193	@Override
194	public boolean onCreateOptionsMenu(Menu menu) {
195	MenuItem item;
196
197	item = menu.add(0, OPTIONS_MAP, 0, getString(stationlist_stationmap));
198	item.setIcon(android.R.drawable.ic_menu_mapmode);
199
200	item = menu.add(0, OPTIONS_GPSINFO, 0, getString(stationlist_gpsinfo));
201	item.setIcon(android.R.drawable.ic_menu_mapmode);
202
203	return true;
204	}
205
206	@Override
207	public boolean onOptionsItemSelected(MenuItem item) {
208	boolean retval = true;
209
210	//TODO: Cleanup
211	switch (item.getItemId()) {
212	case OPTIONS_MAP:
213
214	Intent intent = new Intent(this,StationMapView.class);
215
216	ArrayList<GeoPair> stationPoints = new ArrayList<GeoPair>();
217	for (StationBean st : stations ) {
218	stationPoints.add( new GeoPair(st.getLatitude(), st.getLongitude(), st.getName()) );
219	}
220
221	intent.putExtra("stations", stationPoints);
222
223	startActivity(intent);
224	break;
225	case OPTIONS_GPSINFO:
226	Location loc = locationLookup.getLocation();
227	StringBuffer message = new StringBuffer();
228	message.append( getString(stationlist_locationinfo) ).append(":\n");
229	if (loc != null) {
230	message.append( getString(stationlist_obtainedby) ).append( loc.getProvider() ).append("\n");
231	message.append( getString(stationlist_accuracy) ).append( (int)loc.getAccuracy()).append("m\n");
232	message.append( getString(stationlist_latitude) ).append( (float)loc.getLatitude()).append("\n");
233	message.append( getString(stationlist_longitude) ).append( (float)loc.getLongitude() ).append("\n");
234	} else {
235	message.append( getString(stationlist_nolocation) );
236	}
237
238	MessageBox.showMessage(this, message.toString(), false);
239	break;
240	default:
241	retval = super.onOptionsItemSelected(item);
242	}
243
244	return retval;
245	}
246
247
248
249	@Override
250	public boolean onContextItemSelected(MenuItem item) {
251	contextMenu.onContextItemSelected(item);
252	return true;
253
254
255	}
256
257	public void showMessageAndClose(String message) {
258	AlertDialog.Builder builder = new AlertDialog.Builder(this);
259	builder.setMessage(message)
260	.setCancelable(false)
261	.setPositiveButton("OK", new DialogInterface.OnClickListener() {
262	public void onClick(DialogInterface dialog, int id) {
263	dialog.dismiss();
264	StationList.this.finish();
265	}
266	})
267	.show();
268	}
269
270
271
272
273	@Override
274	protected Dialog onCreateDialog(int id) {
275	switch (id) {
276	case DLG_PROGRESS:
277	ProgressDialog dlg = new ProgressDialog(this);
278	dlg.setMessage( getString(stationlist_waitforlocation) );
279	dlg.setCancelable(false);
280	return dlg;
281	case DLG_STATIONNAME:
282	LayoutInflater factory = LayoutInflater.from(this);
283	final View rootView = factory.inflate(R.layout.textinput, null);
284
285
286	AlertDialog.Builder builder = new AlertDialog.Builder(this);
287
288	builder.setTitle( getString(stationlist_stationsearch) );
289	builder.setView(rootView);
290	builder.setCancelable(true);
291	builder.setPositiveButton( getString(generic_search), new DialogInterface.OnClickListener() {
292	public void onClick(DialogInterface dialog, int which) {
293	EditText et = (EditText) rootView.findViewById(R.id.EditText);
294	dialog.dismiss();
295	String search = et.getText().toString().trim();
296	if (search.length() >= 2) {
297	startNameSearch(search);
298	} else {
299	showMessageAndClose( getString(stationlist_twocharmin) );
300	}
301	}
302	});
303	builder.setNegativeButton(getString(generic_cancel), new DialogInterface.OnClickListener() {
304	public void onClick(DialogInterface dialog, int which) {
305	dialog.dismiss();
306	StationList.this.finish(); // Close this Activity
307	}
308	});
309	return builder.create();
310
311	default:
312	return super.onCreateDialog(id);
313	}
314
315	}
316
317
318	@Override
319	protected void onPrepareDialog(int id, Dialog dialog) {
320	super.onPrepareDialog(id, dialog);
321	switch (id) {
322	case DLG_PROGRESS:
323	this.dialog = (ProgressDialog) dialog;
324	if (!dialogMessage.equals("")) {
325	this.dialog.setMessage(dialogMessage);
326	dialogMessage = "";
327	}
328	break;
329	}
330	}
331
332	@Override
333	protected void onListItemClick(ListView l, View v, int position, long id) {
334	super.onListItemClick(l, v, position, id);
335
336	StationBean station = stations.get(position);
337
338	if (isLaunchedforShortcut == true) {
339	Intent i = new Intent();
340	i.putExtra("station", station);
341	setResult(Activity.RESULT_OK, i);
342	finish();
343	} else {
344	Intent intent = new Intent(this, DepartureList.class);
345	intent.putExtra("stationbean", station);
346	startActivity(intent);
347	}
348	}
349
350	/////////////////////////////////////////////////////////////
351	//
352
353	public void startLookup() {
354	isRunning = true;
355	dialogMessage = getString( stationlist_waitforlocation );
356	showDialog(DLG_PROGRESS);
357
358	locationLookup.locateStations();
359	stationsFetched.sendEmptyMessageDelayed(LOCATIONFIXTIMEOUT, GPS_TIMEOUT_MS);
360	}
361
362	void startNameSearch(String name) {
363	dialogMessage = getString( stationlist_findbyname );
364	showDialog(DLG_PROGRESS);
365
366	findStationsTask = new FindStationsTask();
367	findStationsTask.searchByName(name);
368	findStationsTask.execute();
369
370	}
371
372	public void startFavoriteLookup() {
373
374	if (favorites.size() > 0) {
375	dialogMessage = getString( stationlist_loadfavorites );
376	showDialog(DLG_PROGRESS);
377
378	findStationsTask = new FindStationsTask();
379	findStationsTask.searchByIds( favorites.toString() );
380	findStationsTask.execute();
381	} else {
382	showMessageAndClose( getString( stationlist_nofavorites ) );
383	}
384	}
385
386
387
388	void startLocatorTask()
389	{
390	dialogMessage = getString( stationlist_findingnearby );
391	showDialog(DLG_PROGRESS);
392
393	findStationsTask = new FindStationsTask();
394	findStationsTask.searchByLocation( locationLookup.getLocation() );
395	findStationsTask.execute();
396	}
397
398
399	////////////////////////////////////////////////////////////////////////////
400	// Inner classes
401
402	class StationsFetchedHandler extends Handler {
403	@Override
404	public void handleMessage(Message msg) {
405
406	switch (msg.what) {
407	case GOTLOCATION:
408	dismissDialog(DLG_PROGRESS);
409
410	startLocatorTask();
411	location = GeoPair.fromLocation( locationLookup.getLocation() );
412
413	break;
414
415	case NOPROVIDER:
416	dismissDialog(DLG_PROGRESS);
417	MessageBox.showMessage(StationList.this, getString(stationlist_nolocationprovider), true );
418	//StationList.this.finish();
419	break;
420	case LOCATIONFIXTIMEOUT:
421	if (isRunning) {
422	locationLookup.stopSearch();
423	if (locationLookup.hasLocation()) {
424	stationsFetched.sendEmptyMessage( GOTLOCATION );
425	} else {
426	dismissDialog(DLG_PROGRESS);
427
428	AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);
429	builder.setMessage( getString( stationlist_gpstimeout) );
430	builder.setCancelable(true);
431	builder.setPositiveButton(getString(generic_retry), new DialogInterface.OnClickListener() {
432	public void onClick(DialogInterface dialog, int id) {
433	dialog.dismiss();
434	startLookup();
435
436	}
437	});
438	builder.setNegativeButton( getString(generic_cancel), new DialogInterface.OnClickListener() {
439	public void onClick(DialogInterface dialog, int id) {
440	dialog.dismiss();
441	}
442	});
443	builder.show();
444
445	}
446	}
447	break;
448	}
449	isRunning = false;
450	}
451	};
452
453
454	class FindStationsTask extends AsyncTask<Void,Void,Void> {
455
456	LookupMethod method = LookupMethod.MethodNone;
457	String name;
458	Location loc;
459	String ids;
460
461	public void searchByName(String n) {
462
463	method = LookupMethod.ByName;
464	name = n;
465	}
466
467	public void searchByLocation(Location l) {
468	method = LookupMethod.ByLocation;
469	loc = l;
470	}
471
472	public void searchByIds(String id) {
473
474	method = LookupMethod.ByList;
475	ids = id;
476	}
477
478	@Override
479	protected void onPreExecute() {
480
481	if (method.equals(LookupMethod.MethodNone))
482	throw new RuntimeException("Method not set");
483	super.onPreExecute();
484	}
485
486	@Override
487	protected Void doInBackground(Void... params) {
488
489	switch (method) {
490	case ByLocation:
491	stations = stationProvider.lookupStations(loc);
492	break;
493	case ByName:
494	stations = stationProvider.lookupStationsByName(name);
495	break;
496	case ByList:
497	stations = stationProvider.lookupStationsByIds(ids);
498	break;
499	default:
500	stations = null; // not possible
501	}
502
503
504	return null;
505	}
506
507	@Override
508	protected void onPostExecute(Void result) {
509	super.onPostExecute(result);
510	dialog.dismiss();
511
512
513	if (stations != null) {
514	if (stations.size() == 0) {
515	showMessageAndClose(getString(stationlist_nostations));
516	}
517
518	StationList.this.getListView().invalidateViews();
519	adapter.setStations( stations );
520
521
522	} else { //communication or parse errors
523	AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);
524	builder.setMessage(getString(stationlist_fetcherror));
525	builder.setCancelable(true);
526	builder.setPositiveButton(getString(generic_retry), new DialogInterface.OnClickListener() {
527	public void onClick(DialogInterface dialog, int id) {
528	dialog.dismiss();
529
530	Runnable runner = null;
531	switch (method) {
532	case ByLocation:
533	runner = new Runnable() {
534	@Override
535	public void run() {
536	startLocatorTask();
537	}
538	};
539	break;
540	case ByName:
541	runner = new Runnable() {
542	@Override
543	public void run() {
544	startNameSearch( FindStationsTask.this.name );
545	}
546	};
547	break;
548	case ByList:
549	runner = new Runnable() {
550	@Override
551	public void run() {
552	startFavoriteLookup();
553	}
554	};
555	break;
556	}
557
558	stationsFetched.post( runner );
559	}
560	});
561	builder.setNegativeButton(getString(generic_cancel), new DialogInterface.OnClickListener() {
562	public void onClick(DialogInterface dialog, int id) {
563	dialog.dismiss();
564	StationList.this.finish();
565	}
566	});
567
568	builder.show();
569	}
570	}
571	}
572
573
574	class FavoritesMenu implements OnCreateContextMenuListener {
575	private final static int FAVORITES_ADD = 9001;
576	private final static int FAVORITES_REMOVE = 9002;
577
578	private int selectedPosition;
579
580
581	@Override
582	public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
583
584	AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo) menuInfo;
585	selectedPosition = info.position;
586	int stationID = stations.get(selectedPosition).getId();
587
588	if (!favorites.contains(stationID)) {
589	menu.add(0, FAVORITES_ADD, 0, getString(stationlist_addfavorite) );
590	} else {
591	menu.add(0, FAVORITES_REMOVE, 0, getString(stationlist_removefavorite) );
592	}
593
594	}
595
596	public void onContextItemSelected(MenuItem item) {
597	StationBean sb = stations.get(selectedPosition);
598
599	int stationID = sb.getId();
600	if (item.getItemId() == FAVORITES_ADD) {
601	favorites.add(stationID);
602	Toast.makeText(StationList.this, getString(stationlist_stationadded), Toast.LENGTH_SHORT).show();
603	} else {
604
605	favorites.remove(stationID);
606	Toast.makeText(StationList.this, getString(stationlist_stationremoved), Toast.LENGTH_SHORT).show();
607
608
609	if (listType.equals( WelcomeScreen.ListType.ListFavorites) ) {
610	stations.remove(selectedPosition);
611	adapter.notifyDataSetChanged();
612	}
613	}
614	Editor ed = prefs.edit();
615	ed.putString("favorites", favorites.toString());
616	ed.commit();
617	}
618	}
619	}