thoerup/traininfo/StationList.java

package dk.thoerup.traininfo;

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


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

import android.view.ContextMenu;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ContextMenu.ContextMenuInfo;
import android.view.View.OnCreateContextMenuListener;
import android.widget.AdapterView;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.Toast;
import dk.thoerup.traininfo.provider.ProviderFactory;
import dk.thoerup.traininfo.provider.StationProvider;
import dk.thoerup.traininfo.stationmap.GeoPair;
import dk.thoerup.traininfo.stationmap.StationMapView;
import dk.thoerup.traininfo.util.IntSet;
import dk.thoerup.traininfo.util.MessageBox;

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

public class StationList extends ListActivity  {
        public static final int GOTLOCATION = 1001;
        public static final int GOTSTATIONLIST = 1002;
        public static final int NOPROVIDER = 1003;
        public static final int LOCATIONFIXTIMEOUT = 1004;
        
        public static final int OPTIONS_MAP = 2003;
        public static final int OPTIONS_GPSINFO = 2004;
        
        public static final int DLG_PROGRESS = 3001;
        public static final int DLG_STATIONNAME = 3002;
        
        
        public static final int GPS_TIMEOUT_MS = 17500; //how long are we willing to wait for gps fix -in milliseconds
        
        
        static enum LookupMethod {
                ByLocation,
                ByName,
                ByList,
                MethodNone
        }
        
        
        String dialogMessage = "";
        ProgressDialog dialog;
        LocationLookup locationLookup = null;
        FindStationsTask findStationsTask;
        StationsFetchedHandler stationsFetched = new StationsFetchedHandler();
        
        GeoPair location = new GeoPair();

        boolean isLaunchedforShortcut;
        boolean isRunning = false;
        List<StationBean> stations = new ArrayList<StationBean>();
        
        StationProvider stationProvider = ProviderFactory.getStationProvider();
                
        StationListAdapter adapter = null;
        
        FavoritesMenu contextMenu = new FavoritesMenu();
        IntSet favorites = new IntSet();

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

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

                        
                        switch (listType) {
                        case ListNearest:
                                startLookup();
                                break;
                        case ListSearch:                                
                                showDialog(DLG_STATIONNAME); //TODO: 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);
                }
                if (locationLookup != null) {
                        locationLookup.stopSearch();
                }
                isRunning = false;
        }

        
        protected void setTitle() {
                String dialogTitle = getResources().getString(app_name);
                switch (listType) {
                case ListNearest:
                        dialogTitle += " - " + getString(stationlist_nearbystations);
                        break;
                case ListSearch:
                        dialogTitle += " - " + getString(stationlist_search);
                        break;
                case ListFavorites:
                        dialogTitle += " - " + getString(stationlist_favorites);
                        break;
                default:
                        dialogTitle = "";//not possible                                 
                }
        
                setTitle(dialogTitle);
                
        }
        
        
        /* 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 );
                showDialog(DLG_PROGRESS);//TODO:showDialogSafe(DLG_PROGRESS);
                
                locationLookup.locateStations();
                stationsFetched.sendEmptyMessageDelayed(LOCATIONFIXTIMEOUT, GPS_TIMEOUT_MS);
        }
        
        void startNameSearch(String name) {
                dialogMessage = getString( stationlist_findbyname );
                showDialog(DLG_PROGRESS);//TODO:showDialogSafe(DLG_PROGRESS);

                findStationsTask = new FindStationsTask();
                findStationsTask.searchByName(name);
                findStationsTask.execute();
                
        }
        
        public void startFavoriteLookup() {
                
                if (favorites.size() > 0) {
                        dialogMessage = getString( stationlist_loadfavorites );
                        showDialog(DLG_PROGRESS);//TODO:showDialogSafe(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);//TODO: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:
                                dismissDialog(DLG_PROGRESS);//TODO:dismissDialogSafe(DLG_PROGRESS);
                                
                                startLocatorTask();
                                location = GeoPair.fromLocation( locationLookup.getLocation() );
                                
                                break;

                        case NOPROVIDER:
                                dismissDialog(DLG_PROGRESS);//TODO: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 {                                                
                                                dismissDialog(DLG_PROGRESS);//TODO: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();
                                                        }                                                       
                                                });
                                                builder.show();//TODO:builderShowSafe(builder); 

                                        }
                                }
                                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();//TODO:dismissDialogSafe(dialog);
                        
                        
                        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();//TODO:builderShowSafe(builder); 
                        }
                }
        }
        
        
        class FavoritesMenu implements OnCreateContextMenuListener {
                private final static int FAVORITES_ADD = 9001;
                private final static int FAVORITES_REMOVE = 9002;
                
                private int selectedPosition;
                
                
                @Override
                public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
                                                
                        AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo) menuInfo;
                        selectedPosition = info.position;
                        int stationID = stations.get(selectedPosition).getId();

                        if (!favorites.contains(stationID)) {
                                menu.add(0, FAVORITES_ADD, 0, getString(stationlist_addfavorite) );
                        } else {
                                menu.add(0, FAVORITES_REMOVE, 0, getString(stationlist_removefavorite) );
                        }
                        
                }
                
                public void onContextItemSelected(MenuItem item) {
                        StationBean sb = stations.get(selectedPosition);
                        
                        int stationID = sb.getId();
                        if (item.getItemId() == FAVORITES_ADD) {
                                favorites.add(stationID);
                                Toast.makeText(StationList.this, getString(stationlist_stationadded), Toast.LENGTH_SHORT).show();
                        } else {
                                
                                favorites.remove(stationID);
                                Toast.makeText(StationList.this, getString(stationlist_stationremoved), Toast.LENGTH_SHORT).show();
                                
                                
                                if (listType.equals( WelcomeScreen.ListType.ListFavorites) ) {
                                        stations.remove(selectedPosition);
                                        adapter.notifyDataSetChanged();
                                }
                        }
                        Editor ed = prefs.edit();
                        ed.putString("favorites", favorites.toString());
                        ed.commit();
                }
        }
}
1	package dk.thoerup.traininfo;
2
3	import java.util.ArrayList;
4	import java.util.List;
5
6
7	import android.app.Activity;
8	import android.app.AlertDialog;
9	import android.app.Dialog;
10	import android.app.ListActivity;
11	import android.app.ProgressDialog;
12	import android.content.DialogInterface;
13	import android.content.Intent;
14	import android.content.SharedPreferences;
15	import android.content.SharedPreferences.Editor;
16	import android.location.Location;
17	import android.os.AsyncTask;
18	import android.os.Bundle;
19	import android.os.Handler;
20	import android.os.Message;
21
22	import android.view.ContextMenu;
23	import android.view.LayoutInflater;
24	import android.view.Menu;
25	import android.view.MenuItem;
26	import android.view.View;
27	import android.view.ContextMenu.ContextMenuInfo;
28	import android.view.View.OnCreateContextMenuListener;
29	import android.widget.AdapterView;
30	import android.widget.EditText;
31	import android.widget.ListView;
32	import android.widget.Toast;
33	import dk.thoerup.traininfo.provider.ProviderFactory;
34	import dk.thoerup.traininfo.provider.StationProvider;
35	import dk.thoerup.traininfo.stationmap.GeoPair;
36	import dk.thoerup.traininfo.stationmap.StationMapView;
37	import dk.thoerup.traininfo.util.IntSet;
38	import dk.thoerup.traininfo.util.MessageBox;
39
40	import static dk.thoerup.traininfo.R.string.*;
41
42	public class StationList extends ListActivity {
43	public static final int GOTLOCATION = 1001;
44	public static final int GOTSTATIONLIST = 1002;
45	public static final int NOPROVIDER = 1003;
46	public static final int LOCATIONFIXTIMEOUT = 1004;
47
48	public static final int OPTIONS_MAP = 2003;
49	public static final int OPTIONS_GPSINFO = 2004;
50
51	public static final int DLG_PROGRESS = 3001;
52	public static final int DLG_STATIONNAME = 3002;
53
54
55	public static final int GPS_TIMEOUT_MS = 17500; //how long are we willing to wait for gps fix -in milliseconds
56
57
58	static enum LookupMethod {
59	ByLocation,
60	ByName,
61	ByList,
62	MethodNone
63	}
64
65
66	String dialogMessage = "";
67	ProgressDialog dialog;
68	LocationLookup locationLookup = null;
69	FindStationsTask findStationsTask;
70	StationsFetchedHandler stationsFetched = new StationsFetchedHandler();
71
72	GeoPair location = new GeoPair();
73
74	boolean isLaunchedforShortcut;
75	boolean isRunning = false;
76	List<StationBean> stations = new ArrayList<StationBean>();
77
78	StationProvider stationProvider = ProviderFactory.getStationProvider();
79
80	StationListAdapter adapter = null;
81
82	FavoritesMenu contextMenu = new FavoritesMenu();
83	IntSet favorites = new IntSet();
84
85	WelcomeScreen.ListType listType;
86	SharedPreferences prefs;
87
88	///////////////////////////////////////////////////////////////////////////////////////////
89	//Activity call backs
90
91	@SuppressWarnings("unchecked")
92	@Override
93	public void onCreate(Bundle savedInstanceState) {
94	super.onCreate(savedInstanceState);
95	setContentView(R.layout.stationlist);
96
97
98	adapter = new StationListAdapter(this);
99	setListAdapter(adapter);
100
101	ListView lv = getListView();
102	lv.setOnCreateContextMenuListener(contextMenu);
103
104	locationLookup = new LocationLookup(this, stationsFetched);
105
106
107	prefs = getSharedPreferences("TrainStation", 0);
108	String favoriteString = prefs.getString("favorites", "");
109	if (! favoriteString.equals("") ) {
110	favorites.fromString(favoriteString);
111	}
112
113	listType = (WelcomeScreen.ListType) getIntent().getSerializableExtra("type");
114	setTitle();
115
116	isLaunchedforShortcut = getIntent().getBooleanExtra("shortcut", false);
117
118	if (savedInstanceState == null) {
119
120
121	switch (listType) {
122	case ListNearest:
123	startLookup();
124	break;
125	case ListSearch:
126	showDialog(DLG_STATIONNAME); //TODO: 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	if (locationLookup != null) {
152	locationLookup.stopSearch();
153	}
154	isRunning = false;
155	}
156
157
158	protected void setTitle() {
159	String dialogTitle = getResources().getString(app_name);
160	switch (listType) {
161	case ListNearest:
162	dialogTitle += " - " + getString(stationlist_nearbystations);
163	break;
164	case ListSearch:
165	dialogTitle += " - " + getString(stationlist_search);
166	break;
167	case ListFavorites:
168	dialogTitle += " - " + getString(stationlist_favorites);
169	break;
170	default:
171	dialogTitle = "";//not possible
172	}
173
174	setTitle(dialogTitle);
175
176	}
177
178
179	/* these 3 dialogs helper functions are very rude and ugly hack
180	* to remove these auto-reported exceptions
181	* - android.view.WindowManager$BadTokenException: Unable to add window -- token android.os.BinderProxy@436aaef8 is not valid; is your activity running?
182	* - java.lang.IllegalArgumentException: View not attached to window manager
183	*/
184
185	/*
186	public void showDialogSafe(int id) {
187	try {
188	showDialog(id);
189	} catch (Exception e) {
190	Log.e("StationList", "showDialog failed", e);
191	}
192	}
193
194	public void dismissDialogSafe(int id) {
195	try {
196	dismissDialog(id);
197	} catch (Exception e) {
198	Log.e("StationList", "dismissDialog failed", e);
199	}
200	}
201	public void dismissDialogSafe(Dialog dlg) {
202	try {
203	dlg.dismiss();
204	} catch (Exception e) {
205	Log.e("StationList", "dismissDialog failed", e);
206	}
207	}
208
209	public void builderShowSafe(AlertDialog.Builder builder) {
210	try {
211	builder.show();
212	} catch (Exception e) {
213	Log.e("StationList", "builder.show() failed", e);
214	}
215
216	}*/
217
218	/* EOF rude and ugly dialog hack */
219
220
221
222	@Override
223	public void onSaveInstanceState(Bundle outState)
224	{
225	if (dialog != null && dialog.isShowing())
226	dialog.dismiss();
227	outState.putSerializable("stations", (ArrayList<StationBean>) stations);
228	outState.putSerializable("location", location);
229
230	}
231
232
233
234	@Override
235	public boolean onCreateOptionsMenu(Menu menu) {
236	MenuItem item;
237
238	item = menu.add(0, OPTIONS_MAP, 0, getString(stationlist_stationmap));
239	item.setIcon(android.R.drawable.ic_menu_mapmode);
240
241	item = menu.add(0, OPTIONS_GPSINFO, 0, getString(stationlist_gpsinfo));
242	item.setIcon(android.R.drawable.ic_menu_mapmode);
243
244	return true;
245	}
246
247	@Override
248	public boolean onOptionsItemSelected(MenuItem item) {
249	boolean retval = true;
250
251	//TODO: Cleanup
252	switch (item.getItemId()) {
253	case OPTIONS_MAP:
254
255	Intent intent = new Intent(this,StationMapView.class);
256
257	ArrayList<GeoPair> stationPoints = new ArrayList<GeoPair>();
258	for (StationBean st : stations ) {
259	stationPoints.add( new GeoPair(st.getLatitude(), st.getLongitude(), st.getName()) );
260	}
261
262	intent.putExtra("stations", stationPoints);
263
264	startActivity(intent);
265	break;
266	case OPTIONS_GPSINFO:
267	Location loc = locationLookup.getLocation();
268	StringBuffer message = new StringBuffer();
269	message.append( getString(stationlist_locationinfo) ).append(":\n");
270	if (loc != null) {
271	message.append( getString(stationlist_obtainedby) ).append( loc.getProvider() ).append("\n");
272	message.append( getString(stationlist_accuracy) ).append( (int)loc.getAccuracy()).append("m\n");
273	message.append( getString(stationlist_latitude) ).append( (float)loc.getLatitude()).append("\n");
274	message.append( getString(stationlist_longitude) ).append( (float)loc.getLongitude() ).append("\n");
275	} else {
276	message.append( getString(stationlist_nolocation) );
277	}
278
279	MessageBox.showMessage(this, message.toString(), false);
280	break;
281	default:
282	retval = super.onOptionsItemSelected(item);
283	}
284
285	return retval;
286	}
287
288
289
290	@Override
291	public boolean onContextItemSelected(MenuItem item) {
292	contextMenu.onContextItemSelected(item);
293	return true;
294
295
296	}
297
298	public void showMessageAndClose(String message) {
299	AlertDialog.Builder builder = new AlertDialog.Builder(this);
300	builder.setMessage(message)
301	.setCancelable(false)
302	.setPositiveButton("OK", new DialogInterface.OnClickListener() {
303	public void onClick(DialogInterface dialog, int id) {
304	dialog.dismiss();
305	StationList.this.finish();
306	}
307	})
308	.show();
309	}
310
311
312
313
314	@Override
315	protected Dialog onCreateDialog(int id) {
316	switch (id) {
317	case DLG_PROGRESS:
318	ProgressDialog dlg = new ProgressDialog(this);
319	dlg.setMessage( getString(stationlist_waitforlocation) );
320	dlg.setCancelable(false);
321	return dlg;
322	case DLG_STATIONNAME:
323	LayoutInflater factory = LayoutInflater.from(this);
324	final View rootView = factory.inflate(R.layout.textinput, null);
325
326
327	AlertDialog.Builder builder = new AlertDialog.Builder(this);
328
329	builder.setTitle( getString(stationlist_stationsearch) );
330	builder.setView(rootView);
331	builder.setCancelable(true);
332	builder.setPositiveButton( getString(generic_search), new DialogInterface.OnClickListener() {
333	public void onClick(DialogInterface dialog, int which) {
334	EditText et = (EditText) rootView.findViewById(R.id.EditText);
335	dialog.dismiss();
336	String search = et.getText().toString().trim();
337	if (search.length() >= 2) {
338	startNameSearch(search);
339	} else {
340	showMessageAndClose( getString(stationlist_twocharmin) );
341	}
342	}
343	});
344	builder.setNegativeButton(getString(generic_cancel), new DialogInterface.OnClickListener() {
345	public void onClick(DialogInterface dialog, int which) {
346	dialog.dismiss();
347	StationList.this.finish(); // Close this Activity
348	}
349	});
350	return builder.create();
351
352	default:
353	return super.onCreateDialog(id);
354	}
355
356	}
357
358
359	@Override
360	protected void onPrepareDialog(int id, Dialog dialog) {
361	super.onPrepareDialog(id, dialog);
362	switch (id) {
363	case DLG_PROGRESS:
364	this.dialog = (ProgressDialog) dialog;
365	if (!dialogMessage.equals("")) {
366	this.dialog.setMessage(dialogMessage);
367	dialogMessage = "";
368	}
369	break;
370	}
371	}
372
373	@Override
374	protected void onListItemClick(ListView l, View v, int position, long id) {
375	super.onListItemClick(l, v, position, id);
376
377	StationBean station = stations.get(position);
378
379	if (isLaunchedforShortcut == true) {
380	Intent i = new Intent();
381	i.putExtra("station", station);
382	setResult(Activity.RESULT_OK, i);
383	finish();
384	} else {
385	Intent intent = new Intent(this, DepartureList.class);
386	intent.putExtra("stationbean", station);
387	startActivity(intent);
388	}
389	}
390
391	/////////////////////////////////////////////////////////////
392	//
393
394	public void startLookup() {
395	isRunning = true;
396	dialogMessage = getString( stationlist_waitforlocation );
397	showDialog(DLG_PROGRESS);//TODO:showDialogSafe(DLG_PROGRESS);
398
399	locationLookup.locateStations();
400	stationsFetched.sendEmptyMessageDelayed(LOCATIONFIXTIMEOUT, GPS_TIMEOUT_MS);
401	}
402
403	void startNameSearch(String name) {
404	dialogMessage = getString( stationlist_findbyname );
405	showDialog(DLG_PROGRESS);//TODO:showDialogSafe(DLG_PROGRESS);
406
407	findStationsTask = new FindStationsTask();
408	findStationsTask.searchByName(name);
409	findStationsTask.execute();
410
411	}
412
413	public void startFavoriteLookup() {
414
415	if (favorites.size() > 0) {
416	dialogMessage = getString( stationlist_loadfavorites );
417	showDialog(DLG_PROGRESS);//TODO:showDialogSafe(DLG_PROGRESS);
418
419	findStationsTask = new FindStationsTask();
420	findStationsTask.searchByIds( favorites.toString() );
421	findStationsTask.execute();
422	} else {
423	showMessageAndClose( getString( stationlist_nofavorites ) );
424	}
425	}
426
427
428
429	void startLocatorTask()
430	{
431	dialogMessage = getString( stationlist_findingnearby );
432	showDialog(DLG_PROGRESS);//TODO:showDialogSafe(DLG_PROGRESS);
433
434	findStationsTask = new FindStationsTask();
435	findStationsTask.searchByLocation( locationLookup.getLocation() );
436	findStationsTask.execute();
437	}
438
439
440	////////////////////////////////////////////////////////////////////////////
441	// Inner classes
442
443	class StationsFetchedHandler extends Handler {
444	@Override
445	public void handleMessage(Message msg) {
446
447	switch (msg.what) {
448	case GOTLOCATION:
449	dismissDialog(DLG_PROGRESS);//TODO:dismissDialogSafe(DLG_PROGRESS);
450
451	startLocatorTask();
452	location = GeoPair.fromLocation( locationLookup.getLocation() );
453
454	break;
455
456	case NOPROVIDER:
457	dismissDialog(DLG_PROGRESS);//TODO:dismissDialogSafe(DLG_PROGRESS);
458	MessageBox.showMessage(StationList.this, getString(stationlist_nolocationprovider), true );
459	//StationList.this.finish();
460	break;
461	case LOCATIONFIXTIMEOUT:
462	if (isRunning) {
463	locationLookup.stopSearch();
464	if (locationLookup.hasLocation()) {
465	stationsFetched.sendEmptyMessage( GOTLOCATION );
466	} else {
467	dismissDialog(DLG_PROGRESS);//TODO:dismissDialogSafe(DLG_PROGRESS);
468
469	AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);
470	builder.setMessage( getString( stationlist_gpstimeout) );
471	builder.setCancelable(true);
472	builder.setPositiveButton(getString(generic_retry), new DialogInterface.OnClickListener() {
473	public void onClick(DialogInterface dialog, int id) {
474	dialog.dismiss();
475	startLookup();
476
477	}
478	});
479	builder.setNegativeButton( getString(generic_cancel), new DialogInterface.OnClickListener() {
480	public void onClick(DialogInterface dialog, int id) {
481	dialog.dismiss();
482	}
483	});
484	builder.show();//TODO:builderShowSafe(builder);
485
486	}
487	}
488	break;
489	}
490	isRunning = false;
491	}
492	};
493
494
495	class FindStationsTask extends AsyncTask<Void,Void,Void> {
496
497	LookupMethod method = LookupMethod.MethodNone;
498	String name;
499	Location loc;
500	String ids;
501
502	public void searchByName(String n) {
503
504	method = LookupMethod.ByName;
505	name = n;
506	}
507
508	public void searchByLocation(Location l) {
509	method = LookupMethod.ByLocation;
510	loc = l;
511	}
512
513	public void searchByIds(String id) {
514
515	method = LookupMethod.ByList;
516	ids = id;
517	}
518
519	@Override
520	protected void onPreExecute() {
521
522	if (method.equals(LookupMethod.MethodNone))
523	throw new RuntimeException("Method not set");
524	super.onPreExecute();
525	}
526
527	@Override
528	protected Void doInBackground(Void... params) {
529
530	switch (method) {
531	case ByLocation:
532	stations = stationProvider.lookupStations(loc);
533	break;
534	case ByName:
535	stations = stationProvider.lookupStationsByName(name);
536	break;
537	case ByList:
538	stations = stationProvider.lookupStationsByIds(ids);
539	break;
540	default:
541	stations = null; // not possible
542	}
543
544
545	return null;
546	}
547
548	@Override
549	protected void onPostExecute(Void result) {
550	super.onPostExecute(result);
551	dialog.dismiss();//TODO:dismissDialogSafe(dialog);
552
553
554	if (stations != null) {
555	if (stations.size() == 0) {
556	showMessageAndClose(getString(stationlist_nostations));
557	}
558
559	StationList.this.getListView().invalidateViews();
560	adapter.setStations( stations );
561
562
563	} else { //communication or parse errors
564	AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);
565	builder.setMessage(getString(stationlist_fetcherror));
566	builder.setCancelable(true);
567	builder.setPositiveButton(getString(generic_retry), new DialogInterface.OnClickListener() {
568	public void onClick(DialogInterface dialog, int id) {
569	dialog.dismiss();
570
571	Runnable runner = null;
572	switch (method) {
573	case ByLocation:
574	runner = new Runnable() {
575	@Override
576	public void run() {
577	startLocatorTask();
578	}
579	};
580	break;
581	case ByName:
582	runner = new Runnable() {
583	@Override
584	public void run() {
585	startNameSearch( FindStationsTask.this.name );
586	}
587	};
588	break;
589	case ByList:
590	runner = new Runnable() {
591	@Override
592	public void run() {
593	startFavoriteLookup();
594	}
595	};
596	break;
597	}
598
599	stationsFetched.post( runner );
600	}
601	});
602	builder.setNegativeButton(getString(generic_cancel), new DialogInterface.OnClickListener() {
603	public void onClick(DialogInterface dialog, int id) {
604	dialog.dismiss();
605	StationList.this.finish();
606	}
607	});
608
609	builder.show();//TODO:builderShowSafe(builder);
610	}
611	}
612	}
613
614
615	class FavoritesMenu implements OnCreateContextMenuListener {
616	private final static int FAVORITES_ADD = 9001;
617	private final static int FAVORITES_REMOVE = 9002;
618
619	private int selectedPosition;
620
621
622	@Override
623	public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
624
625	AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo) menuInfo;
626	selectedPosition = info.position;
627	int stationID = stations.get(selectedPosition).getId();
628
629	if (!favorites.contains(stationID)) {
630	menu.add(0, FAVORITES_ADD, 0, getString(stationlist_addfavorite) );
631	} else {
632	menu.add(0, FAVORITES_REMOVE, 0, getString(stationlist_removefavorite) );
633	}
634
635	}
636
637	public void onContextItemSelected(MenuItem item) {
638	StationBean sb = stations.get(selectedPosition);
639
640	int stationID = sb.getId();
641	if (item.getItemId() == FAVORITES_ADD) {
642	favorites.add(stationID);
643	Toast.makeText(StationList.this, getString(stationlist_stationadded), Toast.LENGTH_SHORT).show();
644	} else {
645
646	favorites.remove(stationID);
647	Toast.makeText(StationList.this, getString(stationlist_stationremoved), Toast.LENGTH_SHORT).show();
648
649
650	if (listType.equals( WelcomeScreen.ListType.ListFavorites) ) {
651	stations.remove(selectedPosition);
652	adapter.notifyDataSetChanged();
653	}
654	}
655	Editor ed = prefs.edit();
656	ed.putString("favorites", favorites.toString());
657	ed.commit();
658	}
659	}
660	}