thoerup/traininfo/StationList.java

package dk.thoerup.traininfo;

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


import android.app.AlertDialog;
import android.app.Dialog;
import android.app.ListActivity;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.location.Location;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;

import android.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;

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;
        
        static enum LookupMethod {
                ByLocation,
                ByName,
                ByList,
                MethodNone
        }
        
        
        String dialogMessage = "";
        ProgressDialog dialog;
        LocationLookup locationLookup = null;
        FindStationsTask findStationsTask;
        StationsFetchedHandler stationsFetched = new StationsFetchedHandler();
        
        GeoPair location = new GeoPair();
        
        boolean isRunning = false;
        List<StationBean> stations = new ArrayList<StationBean>();
        
        StationProvider stationProvider = ProviderFactory.getStationProvider();
                
        StationListAdapter adapter = null;
        
        FavoritesMenu contextMenu = new FavoritesMenu();
        IntSet favorites = new IntSet();

        WelcomeScreen.ListType listType;
        SharedPreferences prefs;
        
        ///////////////////////////////////////////////////////////////////////////////////////////
        //Activity call backs
        
        @SuppressWarnings("unchecked")
        @Override
        public void onCreate(Bundle savedInstanceState) {
                super.onCreate(savedInstanceState);
                setContentView(R.layout.stationlist);
                
                
                adapter = new StationListAdapter(this);
                setListAdapter(adapter);
                
                ListView lv = getListView();
                lv.setOnCreateContextMenuListener(contextMenu);
                
                locationLookup = new LocationLookup(this, stationsFetched);
                

                prefs = getSharedPreferences("TrainStation", 0);
                String favoriteString = prefs.getString("favorites", "");
                if (! favoriteString.equals("") ) {
                        favorites.fromString(favoriteString);
                }
                
                listType = (WelcomeScreen.ListType) getIntent().getSerializableExtra("type");
                setTitle();
                
                if (savedInstanceState == null) {

                        
                        switch (listType) {
                        case ListNearest:
                                startLookup();
                                break;
                        case ListSearch:
                                this.showDialog(DLG_STATIONNAME);
                                break;
                        case ListFavorites:
                                startFavoriteLookup();
                                break;
                        default:
                                // Not possible !?!
                        }
                        
                } else {
                        stations = (ArrayList<StationBean>) savedInstanceState.getSerializable("stations");
                        adapter.setStations(stations);
                        location = (GeoPair) savedInstanceState.getSerializable("location");
                }
                
        }
        protected void setTitle() {
                String dialogTitle = getResources().getString(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());
                        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();
                                        if (et.getText().toString().length() >= 2) {
                                                startNameSearch(et.getText().toString());
                                        } 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);
                
                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, 20000);
        }
        
        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) );
                                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;
                boolean success;
                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:
                                success = stationProvider.lookupStations(loc);
                                break;
                        case ByName:
                                success = stationProvider.lookupStationsByName(name);
                                break;
                        case ByList:
                                success = stationProvider.lookupStationsByIds(ids);
                                break;
                        default:
                                success = false; // not possible        
                        }
                        
                        
                        return null;
                }

                @Override
                protected void onPostExecute(Void result) {
                        super.onPostExecute(result);
                        dialog.dismiss();
                        
                        
                        if (success) {                          
                                if (stationProvider.getStations().size() == 0) {
                                        showMessageAndClose(getString(stationlist_nostations));
                                }
                                stations = stationProvider.getStations();
                                adapter.setStations( stations );                                
                                
                        } else { //communication or parse errors
                                AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);                                                
                                builder.setMessage(getString(stationlist_nearbyerror));                         
                                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();
                                        }                                                       
                                });                     
                                try {
                                        builder.show();
                                } catch (android.view.WindowManager.BadTokenException e) {                                      
                                        Log.i("StationList", "BadTokenException"); // this can happen if the user switched away from this activity, while doInBackground was running
                                }
                        }
                }
        }
        
        
        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.AlertDialog;
8	import android.app.Dialog;
9	import android.app.ListActivity;
10	import android.app.ProgressDialog;
11	import android.content.DialogInterface;
12	import android.content.Intent;
13	import android.content.SharedPreferences;
14	import android.content.SharedPreferences.Editor;
15	import android.location.Location;
16	import android.os.AsyncTask;
17	import android.os.Bundle;
18	import android.os.Handler;
19	import android.os.Message;
20
21	import android.util.Log;
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
52
53
54	public static final int DLG_PROGRESS = 3001;
55	public static final int DLG_STATIONNAME = 3002;
56
57	static enum LookupMethod {
58	ByLocation,
59	ByName,
60	ByList,
61	MethodNone
62	}
63
64
65	String dialogMessage = "";
66	ProgressDialog dialog;
67	LocationLookup locationLookup = null;
68	FindStationsTask findStationsTask;
69	StationsFetchedHandler stationsFetched = new StationsFetchedHandler();
70
71	GeoPair location = new GeoPair();
72
73	boolean isRunning = false;
74	List<StationBean> stations = new ArrayList<StationBean>();
75
76	StationProvider stationProvider = ProviderFactory.getStationProvider();
77
78	StationListAdapter adapter = null;
79
80	FavoritesMenu contextMenu = new FavoritesMenu();
81	IntSet favorites = new IntSet();
82
83	WelcomeScreen.ListType listType;
84	SharedPreferences prefs;
85
86	///////////////////////////////////////////////////////////////////////////////////////////
87	//Activity call backs
88
89	@SuppressWarnings("unchecked")
90	@Override
91	public void onCreate(Bundle savedInstanceState) {
92	super.onCreate(savedInstanceState);
93	setContentView(R.layout.stationlist);
94
95
96	adapter = new StationListAdapter(this);
97	setListAdapter(adapter);
98
99	ListView lv = getListView();
100	lv.setOnCreateContextMenuListener(contextMenu);
101
102	locationLookup = new LocationLookup(this, stationsFetched);
103
104
105	prefs = getSharedPreferences("TrainStation", 0);
106	String favoriteString = prefs.getString("favorites", "");
107	if (! favoriteString.equals("") ) {
108	favorites.fromString(favoriteString);
109	}
110
111	listType = (WelcomeScreen.ListType) getIntent().getSerializableExtra("type");
112	setTitle();
113
114	if (savedInstanceState == null) {
115
116
117	switch (listType) {
118	case ListNearest:
119	startLookup();
120	break;
121	case ListSearch:
122	this.showDialog(DLG_STATIONNAME);
123	break;
124	case ListFavorites:
125	startFavoriteLookup();
126	break;
127	default:
128	// Not possible !?!
129	}
130
131	} else {
132	stations = (ArrayList<StationBean>) savedInstanceState.getSerializable("stations");
133	adapter.setStations(stations);
134	location = (GeoPair) savedInstanceState.getSerializable("location");
135	}
136
137	}
138	protected void setTitle() {
139	String dialogTitle = getResources().getString(app_name);
140	switch (listType) {
141	case ListNearest:
142	dialogTitle += " - " + getString(stationlist_nearbystations);
143	break;
144	case ListSearch:
145	dialogTitle += " - " + getString(stationlist_search);
146	break;
147	case ListFavorites:
148	dialogTitle += " - " + getString(stationlist_favorites);
149	break;
150	default:
151	dialogTitle = "";//not possible
152	}
153
154	setTitle(dialogTitle);
155	}
156
157
158
159
160	@Override
161	public void onSaveInstanceState(Bundle outState)
162	{
163	if (dialog != null && dialog.isShowing())
164	dialog.dismiss();
165	outState.putSerializable("stations", (ArrayList<StationBean>) stations);
166	outState.putSerializable("location", location);
167
168	}
169
170
171
172	@Override
173	public boolean onCreateOptionsMenu(Menu menu) {
174	MenuItem item;
175
176	item = menu.add(0, OPTIONS_MAP, 0, getString(stationlist_stationmap));
177	item.setIcon(android.R.drawable.ic_menu_mapmode);
178
179	item = menu.add(0, OPTIONS_GPSINFO, 0, getString(stationlist_gpsinfo));
180	item.setIcon(android.R.drawable.ic_menu_mapmode);
181
182	return true;
183	}
184
185	@Override
186	public boolean onOptionsItemSelected(MenuItem item) {
187	boolean retval = true;
188
189	//TODO: Cleanup
190	switch (item.getItemId()) {
191	case OPTIONS_MAP:
192
193	Intent intent = new Intent(this,StationMapView.class);
194
195	ArrayList<GeoPair> stationPoints = new ArrayList<GeoPair>();
196	for (StationBean st : stations ) {
197	stationPoints.add( new GeoPair(st.getLatitude(), st.getLongitude(), st.getName()) );
198	}
199
200	intent.putExtra("stations", stationPoints);
201
202	startActivity(intent);
203	break;
204	case OPTIONS_GPSINFO:
205	Location loc = locationLookup.getLocation();
206	StringBuffer message = new StringBuffer();
207	message.append( getString(stationlist_locationinfo) ).append(":\n");
208	if (loc != null) {
209	message.append( getString(stationlist_obtainedby) ).append( loc.getProvider() ).append("\n");
210	message.append( getString(stationlist_accuracy) ).append( (int)loc.getAccuracy()).append("m\n");
211	message.append( getString(stationlist_latitude) ).append( (float)loc.getLatitude()).append("\n");
212	message.append( getString(stationlist_longitude) ).append( (float)loc.getLongitude() ).append("\n");
213	} else {
214	message.append( getString(stationlist_nolocation) );
215	}
216
217	MessageBox.showMessage(this, message.toString());
218	break;
219	default:
220	retval = super.onOptionsItemSelected(item);
221	}
222
223	return retval;
224	}
225
226
227
228	@Override
229	public boolean onContextItemSelected(MenuItem item) {
230	contextMenu.onContextItemSelected(item);
231	return true;
232
233
234	}
235
236	public void showMessageAndClose(String message) {
237	AlertDialog.Builder builder = new AlertDialog.Builder(this);
238	builder.setMessage(message)
239	.setCancelable(false)
240	.setPositiveButton("OK", new DialogInterface.OnClickListener() {
241	public void onClick(DialogInterface dialog, int id) {
242	dialog.dismiss();
243	StationList.this.finish();
244	}
245	})
246	.show();
247	}
248
249
250
251
252	@Override
253	protected Dialog onCreateDialog(int id) {
254	switch (id) {
255	case DLG_PROGRESS:
256	ProgressDialog dlg = new ProgressDialog(this);
257	dlg.setMessage( getString(stationlist_waitforlocation) );
258	dlg.setCancelable(false);
259	return dlg;
260	case DLG_STATIONNAME:
261	LayoutInflater factory = LayoutInflater.from(this);
262	final View rootView = factory.inflate(R.layout.textinput, null);
263
264
265	AlertDialog.Builder builder = new AlertDialog.Builder(this);
266
267	builder.setTitle( getString(stationlist_stationsearch) );
268	builder.setView(rootView);
269	builder.setCancelable(true);
270	builder.setPositiveButton( getString(generic_search), new DialogInterface.OnClickListener() {
271	public void onClick(DialogInterface dialog, int which) {
272	EditText et = (EditText) rootView.findViewById(R.id.EditText);
273	dialog.dismiss();
274	if (et.getText().toString().length() >= 2) {
275	startNameSearch(et.getText().toString());
276	} else {
277	showMessageAndClose( getString(stationlist_twocharmin) );
278	}
279	}
280	});
281	builder.setNegativeButton(getString(generic_cancel), new DialogInterface.OnClickListener() {
282	public void onClick(DialogInterface dialog, int which) {
283	dialog.dismiss();
284	StationList.this.finish(); // Close this Activity
285	}
286	});
287	return builder.create();
288
289	default:
290	return super.onCreateDialog(id);
291	}
292
293	}
294
295
296	@Override
297	protected void onPrepareDialog(int id, Dialog dialog) {
298	super.onPrepareDialog(id, dialog);
299	switch (id) {
300	case DLG_PROGRESS:
301	this.dialog = (ProgressDialog) dialog;
302	if (!dialogMessage.equals("")) {
303	this.dialog.setMessage(dialogMessage);
304	dialogMessage = "";
305	}
306	break;
307	}
308	}
309
310	@Override
311	protected void onListItemClick(ListView l, View v, int position, long id) {
312	super.onListItemClick(l, v, position, id);
313
314	StationBean station = stations.get(position);
315
316	Intent intent = new Intent(this, DepartureList.class);
317	intent.putExtra("stationbean", station);
318	startActivity(intent);
319	}
320
321	/////////////////////////////////////////////////////////////
322	//
323
324	public void startLookup() {
325	isRunning = true;
326	dialogMessage = getString( stationlist_waitforlocation );
327	showDialog(DLG_PROGRESS);
328
329	locationLookup.locateStations();
330	stationsFetched.sendEmptyMessageDelayed(LOCATIONFIXTIMEOUT, 20000);
331	}
332
333	void startNameSearch(String name) {
334	dialogMessage = getString( stationlist_findbyname );
335	showDialog(DLG_PROGRESS);
336
337	findStationsTask = new FindStationsTask();
338	findStationsTask.searchByName(name);
339	findStationsTask.execute();
340
341	}
342
343	public void startFavoriteLookup() {
344
345	if (favorites.size() > 0) {
346	dialogMessage = getString( stationlist_loadfavorites );
347	showDialog(DLG_PROGRESS);
348
349	findStationsTask = new FindStationsTask();
350	findStationsTask.searchByIds( favorites.toString() );
351	findStationsTask.execute();
352	} else {
353	showMessageAndClose( getString( stationlist_nofavorites ) );
354	}
355	}
356
357
358
359	void startLocatorTask()
360	{
361	dialogMessage = getString( stationlist_findingnearby );
362	showDialog(DLG_PROGRESS);
363
364	findStationsTask = new FindStationsTask();
365	findStationsTask.searchByLocation( locationLookup.getLocation() );
366	findStationsTask.execute();
367	}
368
369
370	////////////////////////////////////////////////////////////////////////////
371	// Inner classes
372
373	class StationsFetchedHandler extends Handler {
374	@Override
375	public void handleMessage(Message msg) {
376
377	switch (msg.what) {
378	case GOTLOCATION:
379	dismissDialog(DLG_PROGRESS);
380
381	startLocatorTask();
382	location = GeoPair.fromLocation( locationLookup.getLocation() );
383
384	break;
385
386	case NOPROVIDER:
387	dismissDialog(DLG_PROGRESS);
388	MessageBox.showMessage(StationList.this, getString(stationlist_nolocationprovider) );
389	break;
390	case LOCATIONFIXTIMEOUT:
391	if (isRunning) {
392	locationLookup.stopSearch();
393	if (locationLookup.hasLocation()) {
394	stationsFetched.sendEmptyMessage( GOTLOCATION );
395	} else {
396	dismissDialog(DLG_PROGRESS);
397
398	AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);
399	builder.setMessage( getString( stationlist_gpstimeout) );
400	builder.setCancelable(true);
401	builder.setPositiveButton(getString(generic_retry), new DialogInterface.OnClickListener() {
402	public void onClick(DialogInterface dialog, int id) {
403	dialog.dismiss();
404	startLookup();
405
406	}
407	});
408	builder.setNegativeButton( getString(generic_cancel), new DialogInterface.OnClickListener() {
409	public void onClick(DialogInterface dialog, int id) {
410	dialog.dismiss();
411	}
412	});
413	builder.show();
414
415	}
416	}
417	break;
418	}
419	isRunning = false;
420	}
421	};
422
423
424	class FindStationsTask extends AsyncTask<Void,Void,Void> {
425
426	LookupMethod method = LookupMethod.MethodNone;
427	boolean success;
428	String name;
429	Location loc;
430	String ids;
431
432	public void searchByName(String n) {
433
434	method = LookupMethod.ByName;
435	name = n;
436	}
437
438	public void searchByLocation(Location l) {
439	method = LookupMethod.ByLocation;
440	loc = l;
441	}
442
443	public void searchByIds(String id) {
444
445	method = LookupMethod.ByList;
446	ids = id;
447	}
448
449	@Override
450	protected void onPreExecute() {
451
452	if (method.equals(LookupMethod.MethodNone))
453	throw new RuntimeException("Method not set");
454	super.onPreExecute();
455	}
456
457	@Override
458	protected Void doInBackground(Void... params) {
459
460	switch (method) {
461	case ByLocation:
462	success = stationProvider.lookupStations(loc);
463	break;
464	case ByName:
465	success = stationProvider.lookupStationsByName(name);
466	break;
467	case ByList:
468	success = stationProvider.lookupStationsByIds(ids);
469	break;
470	default:
471	success = false; // not possible
472	}
473
474
475	return null;
476	}
477
478	@Override
479	protected void onPostExecute(Void result) {
480	super.onPostExecute(result);
481	dialog.dismiss();
482
483
484	if (success) {
485	if (stationProvider.getStations().size() == 0) {
486	showMessageAndClose(getString(stationlist_nostations));
487	}
488	stations = stationProvider.getStations();
489	adapter.setStations( stations );
490
491	} else { //communication or parse errors
492	AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);
493	builder.setMessage(getString(stationlist_nearbyerror));
494	builder.setCancelable(true);
495	builder.setPositiveButton(getString(generic_retry), new DialogInterface.OnClickListener() {
496	public void onClick(DialogInterface dialog, int id) {
497	dialog.dismiss();
498
499	Runnable runner = null;
500	switch (method) {
501	case ByLocation:
502	runner = new Runnable() {
503	@Override
504	public void run() {
505	startLocatorTask();
506	}
507	};
508	break;
509	case ByName:
510	runner = new Runnable() {
511	@Override
512	public void run() {
513	startNameSearch( FindStationsTask.this.name );
514	}
515	};
516	break;
517	case ByList:
518	runner = new Runnable() {
519	@Override
520	public void run() {
521	startFavoriteLookup();
522	}
523	};
524	break;
525	}
526
527	stationsFetched.post( runner );
528	}
529	});
530	builder.setNegativeButton(getString(generic_cancel), new DialogInterface.OnClickListener() {
531	public void onClick(DialogInterface dialog, int id) {
532	dialog.dismiss();
533	}
534	});
535	try {
536	builder.show();
537	} catch (android.view.WindowManager.BadTokenException e) {
538	Log.i("StationList", "BadTokenException"); // this can happen if the user switched away from this activity, while doInBackground was running
539	}
540	}
541	}
542	}
543
544
545	class FavoritesMenu implements OnCreateContextMenuListener {
546	private final static int FAVORITES_ADD = 9001;
547	private final static int FAVORITES_REMOVE = 9002;
548
549	private int selectedPosition;
550
551
552	@Override
553	public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
554
555	AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo) menuInfo;
556	selectedPosition = info.position;
557	int stationID = stations.get(selectedPosition).getId();
558
559	if (!favorites.contains(stationID)) {
560	menu.add(0, FAVORITES_ADD, 0, getString(stationlist_addfavorite) );
561	} else {
562	menu.add(0, FAVORITES_REMOVE, 0, getString(stationlist_removefavorite) );
563	}
564
565	}
566
567	public void onContextItemSelected(MenuItem item) {
568	StationBean sb = stations.get(selectedPosition);
569
570	int stationID = sb.getId();
571	if (item.getItemId() == FAVORITES_ADD) {
572	favorites.add(stationID);
573	Toast.makeText(StationList.this, getString(stationlist_stationadded), Toast.LENGTH_SHORT).show();
574	} else {
575
576	favorites.remove(stationID);
577	Toast.makeText(StationList.this, getString(stationlist_stationremoved), Toast.LENGTH_SHORT).show();
578
579
580	if (listType.equals( WelcomeScreen.ListType.ListFavorites) ) {
581	stations.remove(selectedPosition);
582	adapter.notifyDataSetChanged();
583	}
584	}
585	Editor ed = prefs.edit();
586	ed.putString("favorites", favorites.toString());
587	ed.commit();
588	}
589	}
590	}