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.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 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:
                                this.showDialogSafe(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);
                }
        }

        
        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);
                
        }
        
        
        /* these 3 dialogs helper functions are very rude and ugly hack
         * to remove these auto-reported exceptions 
         * - android.view.WindowManager$BadTokenException: Unable to add window -- token android.os.BinderProxy@436aaef8 is not valid; is your activity running?
         * - java.lang.IllegalArgumentException: View not attached to window manager 
         */
        
        public void showDialogSafe(int id) {
                try {
                        showDialog(id);
                } catch (Exception e) {
                        Log.e("StationList", "showDialog failed", e);
                }
        }
        
        public void dismissDialogSafe(int id) {
                try {
                        dismissDialog(id);
                } catch (Exception e) {
                        Log.e("StationList", "dismissDialog failed", e);
                }
        }
        public void dismissDialogSafe(Dialog dlg) {
                try {
                        dlg.dismiss();
                } catch (Exception e) {
                        Log.e("StationList", "dismissDialog failed", e);
                }
        }
        
        public void builderShowSafe(AlertDialog.Builder builder) {
                try {
                        builder.show();
                } catch (Exception e) {
                        Log.e("StationList", "builder.show() failed", e);
                }
                
        }
        /* EOF rude and ugly dialog hack */
        

    @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 );
                showDialogSafe(DLG_PROGRESS);
                
                locationLookup.locateStations();
                stationsFetched.sendEmptyMessageDelayed(LOCATIONFIXTIMEOUT, 20000);
        }
        
        void startNameSearch(String name) {
                dialogMessage = getString( stationlist_findbyname );
                showDialogSafe(DLG_PROGRESS);

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

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


        void startLocatorTask()
        {
                dialogMessage = getString( stationlist_findingnearby ); 
                showDialogSafe(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:
                                dismissDialogSafe(DLG_PROGRESS);
                                
                                startLocatorTask();
                                location = GeoPair.fromLocation( locationLookup.getLocation() );
                                
                                break;

                        case NOPROVIDER:
                                dismissDialogSafe(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 {                                                
                                                dismissDialogSafe(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();
                                                        }                                                       
                                                });
                                                builderShowSafe(builder); // 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);
                        dismissDialogSafe(dialog);
                        
                        
                        if (success) {                          
                                if (stationProvider.getStations().size() == 0) {
                                        showMessageAndClose(getString(stationlist_nostations));
                                }
                                stations = stationProvider.getStations();

                                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();
                                        }                                                       
                                });
                                
                                builderShowSafe(builder); // 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.util.Log;
23	import android.view.ContextMenu;
24	import android.view.LayoutInflater;
25	import android.view.Menu;
26	import android.view.MenuItem;
27	import android.view.View;
28	import android.view.ContextMenu.ContextMenuInfo;
29	import android.view.View.OnCreateContextMenuListener;
30	import android.widget.AdapterView;
31	import android.widget.EditText;
32	import android.widget.ListView;
33	import android.widget.Toast;
34	import dk.thoerup.traininfo.provider.ProviderFactory;
35	import dk.thoerup.traininfo.provider.StationProvider;
36	import dk.thoerup.traininfo.stationmap.GeoPair;
37	import dk.thoerup.traininfo.stationmap.StationMapView;
38	import dk.thoerup.traininfo.util.IntSet;
39	import dk.thoerup.traininfo.util.MessageBox;
40
41	import static dk.thoerup.traininfo.R.string.*;
42
43	public class StationList extends ListActivity {
44	public static final int GOTLOCATION = 1001;
45	public static final int GOTSTATIONLIST = 1002;
46	public static final int NOPROVIDER = 1003;
47	public static final int LOCATIONFIXTIMEOUT = 1004;
48
49	public static final int OPTIONS_MAP = 2003;
50	public static final int OPTIONS_GPSINFO = 2004;
51
52
53
54
55	public static final int DLG_PROGRESS = 3001;
56	public static final int DLG_STATIONNAME = 3002;
57
58	static enum LookupMethod {
59	ByLocation,
60	ByName,
61	ByList,
62	MethodNone
63	}
64
65
66	String dialogMessage = "";
67	ProgressDialog dialog;
68	LocationLookup 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	this.showDialogSafe(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	}
152
153
154	protected void setTitle() {
155	String dialogTitle = getResources().getString(app_name);
156	switch (listType) {
157	case ListNearest:
158	dialogTitle += " - " + getString(stationlist_nearbystations);
159	break;
160	case ListSearch:
161	dialogTitle += " - " + getString(stationlist_search);
162	break;
163	case ListFavorites:
164	dialogTitle += " - " + getString(stationlist_favorites);
165	break;
166	default:
167	dialogTitle = "";//not possible
168	}
169
170	setTitle(dialogTitle);
171
172	}
173
174
175	/* these 3 dialogs helper functions are very rude and ugly hack
176	* to remove these auto-reported exceptions
177	* - android.view.WindowManager$BadTokenException: Unable to add window -- token android.os.BinderProxy@436aaef8 is not valid; is your activity running?
178	* - java.lang.IllegalArgumentException: View not attached to window manager
179	*/
180
181	public void showDialogSafe(int id) {
182	try {
183	showDialog(id);
184	} catch (Exception e) {
185	Log.e("StationList", "showDialog failed", e);
186	}
187	}
188
189	public void dismissDialogSafe(int id) {
190	try {
191	dismissDialog(id);
192	} catch (Exception e) {
193	Log.e("StationList", "dismissDialog failed", e);
194	}
195	}
196	public void dismissDialogSafe(Dialog dlg) {
197	try {
198	dlg.dismiss();
199	} catch (Exception e) {
200	Log.e("StationList", "dismissDialog failed", e);
201	}
202	}
203
204	public void builderShowSafe(AlertDialog.Builder builder) {
205	try {
206	builder.show();
207	} catch (Exception e) {
208	Log.e("StationList", "builder.show() failed", e);
209	}
210
211	}
212	/* EOF rude and ugly dialog hack */
213
214
215
216	@Override
217	public void onSaveInstanceState(Bundle outState)
218	{
219	if (dialog != null && dialog.isShowing())
220	dialog.dismiss();
221	outState.putSerializable("stations", (ArrayList<StationBean>) stations);
222	outState.putSerializable("location", location);
223
224	}
225
226
227
228	@Override
229	public boolean onCreateOptionsMenu(Menu menu) {
230	MenuItem item;
231
232	item = menu.add(0, OPTIONS_MAP, 0, getString(stationlist_stationmap));
233	item.setIcon(android.R.drawable.ic_menu_mapmode);
234
235	item = menu.add(0, OPTIONS_GPSINFO, 0, getString(stationlist_gpsinfo));
236	item.setIcon(android.R.drawable.ic_menu_mapmode);
237
238	return true;
239	}
240
241	@Override
242	public boolean onOptionsItemSelected(MenuItem item) {
243	boolean retval = true;
244
245	//TODO: Cleanup
246	switch (item.getItemId()) {
247	case OPTIONS_MAP:
248
249	Intent intent = new Intent(this,StationMapView.class);
250
251	ArrayList<GeoPair> stationPoints = new ArrayList<GeoPair>();
252	for (StationBean st : stations ) {
253	stationPoints.add( new GeoPair(st.getLatitude(), st.getLongitude(), st.getName()) );
254	}
255
256	intent.putExtra("stations", stationPoints);
257
258	startActivity(intent);
259	break;
260	case OPTIONS_GPSINFO:
261	Location loc = locationLookup.getLocation();
262	StringBuffer message = new StringBuffer();
263	message.append( getString(stationlist_locationinfo) ).append(":\n");
264	if (loc != null) {
265	message.append( getString(stationlist_obtainedby) ).append( loc.getProvider() ).append("\n");
266	message.append( getString(stationlist_accuracy) ).append( (int)loc.getAccuracy()).append("m\n");
267	message.append( getString(stationlist_latitude) ).append( (float)loc.getLatitude()).append("\n");
268	message.append( getString(stationlist_longitude) ).append( (float)loc.getLongitude() ).append("\n");
269	} else {
270	message.append( getString(stationlist_nolocation) );
271	}
272
273	MessageBox.showMessage(this, message.toString(), false);
274	break;
275	default:
276	retval = super.onOptionsItemSelected(item);
277	}
278
279	return retval;
280	}
281
282
283
284	@Override
285	public boolean onContextItemSelected(MenuItem item) {
286	contextMenu.onContextItemSelected(item);
287	return true;
288
289
290	}
291
292	public void showMessageAndClose(String message) {
293	AlertDialog.Builder builder = new AlertDialog.Builder(this);
294	builder.setMessage(message)
295	.setCancelable(false)
296	.setPositiveButton("OK", new DialogInterface.OnClickListener() {
297	public void onClick(DialogInterface dialog, int id) {
298	dialog.dismiss();
299	StationList.this.finish();
300	}
301	})
302	.show();
303	}
304
305
306
307
308	@Override
309	protected Dialog onCreateDialog(int id) {
310	switch (id) {
311	case DLG_PROGRESS:
312	ProgressDialog dlg = new ProgressDialog(this);
313	dlg.setMessage( getString(stationlist_waitforlocation) );
314	dlg.setCancelable(false);
315	return dlg;
316	case DLG_STATIONNAME:
317	LayoutInflater factory = LayoutInflater.from(this);
318	final View rootView = factory.inflate(R.layout.textinput, null);
319
320
321	AlertDialog.Builder builder = new AlertDialog.Builder(this);
322
323	builder.setTitle( getString(stationlist_stationsearch) );
324	builder.setView(rootView);
325	builder.setCancelable(true);
326	builder.setPositiveButton( getString(generic_search), new DialogInterface.OnClickListener() {
327	public void onClick(DialogInterface dialog, int which) {
328	EditText et = (EditText) rootView.findViewById(R.id.EditText);
329	dialog.dismiss();
330	String search = et.getText().toString().trim();
331	if (search.length() >= 2) {
332	startNameSearch(search);
333	} else {
334	showMessageAndClose( getString(stationlist_twocharmin) );
335	}
336	}
337	});
338	builder.setNegativeButton(getString(generic_cancel), new DialogInterface.OnClickListener() {
339	public void onClick(DialogInterface dialog, int which) {
340	dialog.dismiss();
341	StationList.this.finish(); // Close this Activity
342	}
343	});
344	return builder.create();
345
346	default:
347	return super.onCreateDialog(id);
348	}
349
350	}
351
352
353	@Override
354	protected void onPrepareDialog(int id, Dialog dialog) {
355	super.onPrepareDialog(id, dialog);
356	switch (id) {
357	case DLG_PROGRESS:
358	this.dialog = (ProgressDialog) dialog;
359	if (!dialogMessage.equals("")) {
360	this.dialog.setMessage(dialogMessage);
361	dialogMessage = "";
362	}
363	break;
364	}
365	}
366
367	@Override
368	protected void onListItemClick(ListView l, View v, int position, long id) {
369	super.onListItemClick(l, v, position, id);
370
371	StationBean station = stations.get(position);
372
373	if (isLaunchedforShortcut == true) {
374	Intent i = new Intent();
375	i.putExtra("station", station);
376	setResult(Activity.RESULT_OK, i);
377	finish();
378	} else {
379	Intent intent = new Intent(this, DepartureList.class);
380	intent.putExtra("stationbean", station);
381	startActivity(intent);
382	}
383	}
384
385	/////////////////////////////////////////////////////////////
386	//
387
388	public void startLookup() {
389	isRunning = true;
390	dialogMessage = getString( stationlist_waitforlocation );
391	showDialogSafe(DLG_PROGRESS);
392
393	locationLookup.locateStations();
394	stationsFetched.sendEmptyMessageDelayed(LOCATIONFIXTIMEOUT, 20000);
395	}
396
397	void startNameSearch(String name) {
398	dialogMessage = getString( stationlist_findbyname );
399	showDialogSafe(DLG_PROGRESS);
400
401	findStationsTask = new FindStationsTask();
402	findStationsTask.searchByName(name);
403	findStationsTask.execute();
404
405	}
406
407	public void startFavoriteLookup() {
408
409	if (favorites.size() > 0) {
410	dialogMessage = getString( stationlist_loadfavorites );
411	showDialogSafe(DLG_PROGRESS);
412
413	findStationsTask = new FindStationsTask();
414	findStationsTask.searchByIds( favorites.toString() );
415	findStationsTask.execute();
416	} else {
417	showMessageAndClose( getString( stationlist_nofavorites ) );
418	}
419	}
420
421
422
423	void startLocatorTask()
424	{
425	dialogMessage = getString( stationlist_findingnearby );
426	showDialogSafe(DLG_PROGRESS);
427
428	findStationsTask = new FindStationsTask();
429	findStationsTask.searchByLocation( locationLookup.getLocation() );
430	findStationsTask.execute();
431	}
432
433
434	////////////////////////////////////////////////////////////////////////////
435	// Inner classes
436
437	class StationsFetchedHandler extends Handler {
438	@Override
439	public void handleMessage(Message msg) {
440
441	switch (msg.what) {
442	case GOTLOCATION:
443	dismissDialogSafe(DLG_PROGRESS);
444
445	startLocatorTask();
446	location = GeoPair.fromLocation( locationLookup.getLocation() );
447
448	break;
449
450	case NOPROVIDER:
451	dismissDialogSafe(DLG_PROGRESS);
452	MessageBox.showMessage(StationList.this, getString(stationlist_nolocationprovider), true );
453	//StationList.this.finish();
454	break;
455	case LOCATIONFIXTIMEOUT:
456	if (isRunning) {
457	locationLookup.stopSearch();
458	if (locationLookup.hasLocation()) {
459	stationsFetched.sendEmptyMessage( GOTLOCATION );
460	} else {
461	dismissDialogSafe(DLG_PROGRESS);
462
463	AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);
464	builder.setMessage( getString( stationlist_gpstimeout) );
465	builder.setCancelable(true);
466	builder.setPositiveButton(getString(generic_retry), new DialogInterface.OnClickListener() {
467	public void onClick(DialogInterface dialog, int id) {
468	dialog.dismiss();
469	startLookup();
470
471	}
472	});
473	builder.setNegativeButton( getString(generic_cancel), new DialogInterface.OnClickListener() {
474	public void onClick(DialogInterface dialog, int id) {
475	dialog.dismiss();
476	}
477	});
478	builderShowSafe(builder); // builder.show()
479
480	}
481	}
482	break;
483	}
484	isRunning = false;
485	}
486	};
487
488
489	class FindStationsTask extends AsyncTask<Void,Void,Void> {
490
491	LookupMethod method = LookupMethod.MethodNone;
492	boolean success;
493	String name;
494	Location loc;
495	String ids;
496
497	public void searchByName(String n) {
498
499	method = LookupMethod.ByName;
500	name = n;
501	}
502
503	public void searchByLocation(Location l) {
504	method = LookupMethod.ByLocation;
505	loc = l;
506	}
507
508	public void searchByIds(String id) {
509
510	method = LookupMethod.ByList;
511	ids = id;
512	}
513
514	@Override
515	protected void onPreExecute() {
516
517	if (method.equals(LookupMethod.MethodNone))
518	throw new RuntimeException("Method not set");
519	super.onPreExecute();
520	}
521
522	@Override
523	protected Void doInBackground(Void... params) {
524
525	switch (method) {
526	case ByLocation:
527	success = stationProvider.lookupStations(loc);
528	break;
529	case ByName:
530	success = stationProvider.lookupStationsByName(name);
531	break;
532	case ByList:
533	success = stationProvider.lookupStationsByIds(ids);
534	break;
535	default:
536	success = false; // not possible
537	}
538
539
540	return null;
541	}
542
543	@Override
544	protected void onPostExecute(Void result) {
545	super.onPostExecute(result);
546	dismissDialogSafe(dialog);
547
548
549	if (success) {
550	if (stationProvider.getStations().size() == 0) {
551	showMessageAndClose(getString(stationlist_nostations));
552	}
553	stations = stationProvider.getStations();
554
555	StationList.this.getListView().invalidateViews();
556	adapter.setStations( stations );
557
558
559	} else { //communication or parse errors
560	AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);
561	builder.setMessage(getString(stationlist_fetcherror));
562	builder.setCancelable(true);
563	builder.setPositiveButton(getString(generic_retry), new DialogInterface.OnClickListener() {
564	public void onClick(DialogInterface dialog, int id) {
565	dialog.dismiss();
566
567	Runnable runner = null;
568	switch (method) {
569	case ByLocation:
570	runner = new Runnable() {
571	@Override
572	public void run() {
573	startLocatorTask();
574	}
575	};
576	break;
577	case ByName:
578	runner = new Runnable() {
579	@Override
580	public void run() {
581	startNameSearch( FindStationsTask.this.name );
582	}
583	};
584	break;
585	case ByList:
586	runner = new Runnable() {
587	@Override
588	public void run() {
589	startFavoriteLookup();
590	}
591	};
592	break;
593	}
594
595	stationsFetched.post( runner );
596	}
597	});
598	builder.setNegativeButton(getString(generic_cancel), new DialogInterface.OnClickListener() {
599	public void onClick(DialogInterface dialog, int id) {
600	dialog.dismiss();
601	StationList.this.finish();
602	}
603	});
604
605	builderShowSafe(builder); // builder.show()
606	}
607	}
608	}
609
610
611	class FavoritesMenu implements OnCreateContextMenuListener {
612	private final static int FAVORITES_ADD = 9001;
613	private final static int FAVORITES_REMOVE = 9002;
614
615	private int selectedPosition;
616
617
618	@Override
619	public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
620
621	AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo) menuInfo;
622	selectedPosition = info.position;
623	int stationID = stations.get(selectedPosition).getId();
624
625	if (!favorites.contains(stationID)) {
626	menu.add(0, FAVORITES_ADD, 0, getString(stationlist_addfavorite) );
627	} else {
628	menu.add(0, FAVORITES_REMOVE, 0, getString(stationlist_removefavorite) );
629	}
630
631	}
632
633	public void onContextItemSelected(MenuItem item) {
634	StationBean sb = stations.get(selectedPosition);
635
636	int stationID = sb.getId();
637	if (item.getItemId() == FAVORITES_ADD) {
638	favorites.add(stationID);
639	Toast.makeText(StationList.this, getString(stationlist_stationadded), Toast.LENGTH_SHORT).show();
640	} else {
641
642	favorites.remove(stationID);
643	Toast.makeText(StationList.this, getString(stationlist_stationremoved), Toast.LENGTH_SHORT).show();
644
645
646	if (listType.equals( WelcomeScreen.ListType.ListFavorites) ) {
647	stations.remove(selectedPosition);
648	adapter.notifyDataSetChanged();
649	}
650	}
651	Editor ed = prefs.edit();
652	ed.putString("favorites", favorites.toString());
653	ed.commit();
654	}
655	}
656	}