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;
        
        
        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;
                boolean success;
                String name;
                Location loc;
                String ids;
                
                public void searchByName(String n) {
                        
                        method = LookupMethod.ByName;
                        name = n;
                }
                
                public void searchByLocation(Location l) {
                        method = LookupMethod.ByLocation;
                        loc = l;
                }
                
                public void searchByIds(String id) {
                        
                        method = LookupMethod.ByList;
                        ids = id;
                }
                
                @Override
                protected void onPreExecute() {

                        if (method.equals(LookupMethod.MethodNone))
                                throw new RuntimeException("Method not set");
                        super.onPreExecute();
                }
                
                @Override
                protected Void doInBackground(Void... params) {

                        switch (method) {
                        case ByLocation:
                                success = stationProvider.lookupStations(loc);
                                break;
                        case ByName:
                                success = stationProvider.lookupStationsByName(name);
                                break;
                        case ByList:
                                success = stationProvider.lookupStationsByIds(ids);
                                break;
                        default:
                                success = false; // not possible        
                        }
                        
                        
                        return null;
                }

                @Override
                protected void onPostExecute(Void result) {
                        super.onPostExecute(result);
                        dialog.dismiss();//TODO: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();
                                        }                                                       
                                });
                                
                                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.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	public static final int DLG_PROGRESS = 3001;
53	public static final int DLG_STATIONNAME = 3002;
54
55
56	public static final int GPS_TIMEOUT_MS = 17500; //how long are we willing to wait for gps fix -in milliseconds
57
58
59	static enum LookupMethod {
60	ByLocation,
61	ByName,
62	ByList,
63	MethodNone
64	}
65
66
67	String dialogMessage = "";
68	ProgressDialog dialog;
69	LocationLookup locationLookup = null;
70	FindStationsTask findStationsTask;
71	StationsFetchedHandler stationsFetched = new StationsFetchedHandler();
72
73	GeoPair location = new GeoPair();
74
75	boolean isLaunchedforShortcut;
76	boolean isRunning = false;
77	List<StationBean> stations = new ArrayList<StationBean>();
78
79	StationProvider stationProvider = ProviderFactory.getStationProvider();
80
81	StationListAdapter adapter = null;
82
83	FavoritesMenu contextMenu = new FavoritesMenu();
84	IntSet favorites = new IntSet();
85
86	WelcomeScreen.ListType listType;
87	SharedPreferences prefs;
88
89	///////////////////////////////////////////////////////////////////////////////////////////
90	//Activity call backs
91
92	@SuppressWarnings("unchecked")
93	@Override
94	public void onCreate(Bundle savedInstanceState) {
95	super.onCreate(savedInstanceState);
96	setContentView(R.layout.stationlist);
97
98
99	adapter = new StationListAdapter(this);
100	setListAdapter(adapter);
101
102	ListView lv = getListView();
103	lv.setOnCreateContextMenuListener(contextMenu);
104
105	locationLookup = new LocationLookup(this, stationsFetched);
106
107
108	prefs = getSharedPreferences("TrainStation", 0);
109	String favoriteString = prefs.getString("favorites", "");
110	if (! favoriteString.equals("") ) {
111	favorites.fromString(favoriteString);
112	}
113
114	listType = (WelcomeScreen.ListType) getIntent().getSerializableExtra("type");
115	setTitle();
116
117	isLaunchedforShortcut = getIntent().getBooleanExtra("shortcut", false);
118
119	if (savedInstanceState == null) {
120
121
122	switch (listType) {
123	case ListNearest:
124	startLookup();
125	break;
126	case ListSearch:
127	showDialog(DLG_STATIONNAME); //TODO: this.showDialogSafe(DLG_STATIONNAME);
128	break;
129	case ListFavorites:
130	startFavoriteLookup();
131	break;
132	default:
133	// Not possible !?!
134	}
135
136	} else {
137	stations = (ArrayList<StationBean>) savedInstanceState.getSerializable("stations");
138	adapter.setStations(stations);
139	location = (GeoPair) savedInstanceState.getSerializable("location");
140	}
141
142	}
143
144
145	@Override
146	protected void onDestroy() {
147	super.onDestroy();
148
149	if (findStationsTask != null) {
150	findStationsTask.cancel(true);
151	}
152	if (locationLookup != null) {
153	locationLookup.stopSearch();
154	}
155	isRunning = false;
156	}
157
158
159	protected void setTitle() {
160	String dialogTitle = getResources().getString(app_name);
161	switch (listType) {
162	case ListNearest:
163	dialogTitle += " - " + getString(stationlist_nearbystations);
164	break;
165	case ListSearch:
166	dialogTitle += " - " + getString(stationlist_search);
167	break;
168	case ListFavorites:
169	dialogTitle += " - " + getString(stationlist_favorites);
170	break;
171	default:
172	dialogTitle = "";//not possible
173	}
174
175	setTitle(dialogTitle);
176
177	}
178
179
180	/* these 3 dialogs helper functions are very rude and ugly hack
181	* to remove these auto-reported exceptions
182	* - android.view.WindowManager$BadTokenException: Unable to add window -- token android.os.BinderProxy@436aaef8 is not valid; is your activity running?
183	* - java.lang.IllegalArgumentException: View not attached to window manager
184	*/
185
186	/*
187	public void showDialogSafe(int id) {
188	try {
189	showDialog(id);
190	} catch (Exception e) {
191	Log.e("StationList", "showDialog failed", e);
192	}
193	}
194
195	public void dismissDialogSafe(int id) {
196	try {
197	dismissDialog(id);
198	} catch (Exception e) {
199	Log.e("StationList", "dismissDialog failed", e);
200	}
201	}
202	public void dismissDialogSafe(Dialog dlg) {
203	try {
204	dlg.dismiss();
205	} catch (Exception e) {
206	Log.e("StationList", "dismissDialog failed", e);
207	}
208	}
209
210	public void builderShowSafe(AlertDialog.Builder builder) {
211	try {
212	builder.show();
213	} catch (Exception e) {
214	Log.e("StationList", "builder.show() failed", e);
215	}
216
217	}*/
218
219	/* EOF rude and ugly dialog hack */
220
221
222
223	@Override
224	public void onSaveInstanceState(Bundle outState)
225	{
226	if (dialog != null && dialog.isShowing())
227	dialog.dismiss();
228	outState.putSerializable("stations", (ArrayList<StationBean>) stations);
229	outState.putSerializable("location", location);
230
231	}
232
233
234
235	@Override
236	public boolean onCreateOptionsMenu(Menu menu) {
237	MenuItem item;
238
239	item = menu.add(0, OPTIONS_MAP, 0, getString(stationlist_stationmap));
240	item.setIcon(android.R.drawable.ic_menu_mapmode);
241
242	item = menu.add(0, OPTIONS_GPSINFO, 0, getString(stationlist_gpsinfo));
243	item.setIcon(android.R.drawable.ic_menu_mapmode);
244
245	return true;
246	}
247
248	@Override
249	public boolean onOptionsItemSelected(MenuItem item) {
250	boolean retval = true;
251
252	//TODO: Cleanup
253	switch (item.getItemId()) {
254	case OPTIONS_MAP:
255
256	Intent intent = new Intent(this,StationMapView.class);
257
258	ArrayList<GeoPair> stationPoints = new ArrayList<GeoPair>();
259	for (StationBean st : stations ) {
260	stationPoints.add( new GeoPair(st.getLatitude(), st.getLongitude(), st.getName()) );
261	}
262
263	intent.putExtra("stations", stationPoints);
264
265	startActivity(intent);
266	break;
267	case OPTIONS_GPSINFO:
268	Location loc = locationLookup.getLocation();
269	StringBuffer message = new StringBuffer();
270	message.append( getString(stationlist_locationinfo) ).append(":\n");
271	if (loc != null) {
272	message.append( getString(stationlist_obtainedby) ).append( loc.getProvider() ).append("\n");
273	message.append( getString(stationlist_accuracy) ).append( (int)loc.getAccuracy()).append("m\n");
274	message.append( getString(stationlist_latitude) ).append( (float)loc.getLatitude()).append("\n");
275	message.append( getString(stationlist_longitude) ).append( (float)loc.getLongitude() ).append("\n");
276	} else {
277	message.append( getString(stationlist_nolocation) );
278	}
279
280	MessageBox.showMessage(this, message.toString(), false);
281	break;
282	default:
283	retval = super.onOptionsItemSelected(item);
284	}
285
286	return retval;
287	}
288
289
290
291	@Override
292	public boolean onContextItemSelected(MenuItem item) {
293	contextMenu.onContextItemSelected(item);
294	return true;
295
296
297	}
298
299	public void showMessageAndClose(String message) {
300	AlertDialog.Builder builder = new AlertDialog.Builder(this);
301	builder.setMessage(message)
302	.setCancelable(false)
303	.setPositiveButton("OK", new DialogInterface.OnClickListener() {
304	public void onClick(DialogInterface dialog, int id) {
305	dialog.dismiss();
306	StationList.this.finish();
307	}
308	})
309	.show();
310	}
311
312
313
314
315	@Override
316	protected Dialog onCreateDialog(int id) {
317	switch (id) {
318	case DLG_PROGRESS:
319	ProgressDialog dlg = new ProgressDialog(this);
320	dlg.setMessage( getString(stationlist_waitforlocation) );
321	dlg.setCancelable(false);
322	return dlg;
323	case DLG_STATIONNAME:
324	LayoutInflater factory = LayoutInflater.from(this);
325	final View rootView = factory.inflate(R.layout.textinput, null);
326
327
328	AlertDialog.Builder builder = new AlertDialog.Builder(this);
329
330	builder.setTitle( getString(stationlist_stationsearch) );
331	builder.setView(rootView);
332	builder.setCancelable(true);
333	builder.setPositiveButton( getString(generic_search), new DialogInterface.OnClickListener() {
334	public void onClick(DialogInterface dialog, int which) {
335	EditText et = (EditText) rootView.findViewById(R.id.EditText);
336	dialog.dismiss();
337	String search = et.getText().toString().trim();
338	if (search.length() >= 2) {
339	startNameSearch(search);
340	} else {
341	showMessageAndClose( getString(stationlist_twocharmin) );
342	}
343	}
344	});
345	builder.setNegativeButton(getString(generic_cancel), new DialogInterface.OnClickListener() {
346	public void onClick(DialogInterface dialog, int which) {
347	dialog.dismiss();
348	StationList.this.finish(); // Close this Activity
349	}
350	});
351	return builder.create();
352
353	default:
354	return super.onCreateDialog(id);
355	}
356
357	}
358
359
360	@Override
361	protected void onPrepareDialog(int id, Dialog dialog) {
362	super.onPrepareDialog(id, dialog);
363	switch (id) {
364	case DLG_PROGRESS:
365	this.dialog = (ProgressDialog) dialog;
366	if (!dialogMessage.equals("")) {
367	this.dialog.setMessage(dialogMessage);
368	dialogMessage = "";
369	}
370	break;
371	}
372	}
373
374	@Override
375	protected void onListItemClick(ListView l, View v, int position, long id) {
376	super.onListItemClick(l, v, position, id);
377
378	StationBean station = stations.get(position);
379
380	if (isLaunchedforShortcut == true) {
381	Intent i = new Intent();
382	i.putExtra("station", station);
383	setResult(Activity.RESULT_OK, i);
384	finish();
385	} else {
386	Intent intent = new Intent(this, DepartureList.class);
387	intent.putExtra("stationbean", station);
388	startActivity(intent);
389	}
390	}
391
392	/////////////////////////////////////////////////////////////
393	//
394
395	public void startLookup() {
396	isRunning = true;
397	dialogMessage = getString( stationlist_waitforlocation );
398	showDialog(DLG_PROGRESS);//TODO:showDialogSafe(DLG_PROGRESS);
399
400	locationLookup.locateStations();
401	stationsFetched.sendEmptyMessageDelayed(LOCATIONFIXTIMEOUT, GPS_TIMEOUT_MS);
402	}
403
404	void startNameSearch(String name) {
405	dialogMessage = getString( stationlist_findbyname );
406	showDialog(DLG_PROGRESS);//TODO:showDialogSafe(DLG_PROGRESS);
407
408	findStationsTask = new FindStationsTask();
409	findStationsTask.searchByName(name);
410	findStationsTask.execute();
411
412	}
413
414	public void startFavoriteLookup() {
415
416	if (favorites.size() > 0) {
417	dialogMessage = getString( stationlist_loadfavorites );
418	showDialog(DLG_PROGRESS);//TODO:showDialogSafe(DLG_PROGRESS);
419
420	findStationsTask = new FindStationsTask();
421	findStationsTask.searchByIds( favorites.toString() );
422	findStationsTask.execute();
423	} else {
424	showMessageAndClose( getString( stationlist_nofavorites ) );
425	}
426	}
427
428
429
430	void startLocatorTask()
431	{
432	dialogMessage = getString( stationlist_findingnearby );
433	showDialog(DLG_PROGRESS);//TODO:showDialogSafe(DLG_PROGRESS);
434
435	findStationsTask = new FindStationsTask();
436	findStationsTask.searchByLocation( locationLookup.getLocation() );
437	findStationsTask.execute();
438	}
439
440
441	////////////////////////////////////////////////////////////////////////////
442	// Inner classes
443
444	class StationsFetchedHandler extends Handler {
445	@Override
446	public void handleMessage(Message msg) {
447
448	switch (msg.what) {
449	case GOTLOCATION:
450	dismissDialog(DLG_PROGRESS);//TODO:dismissDialogSafe(DLG_PROGRESS);
451
452	startLocatorTask();
453	location = GeoPair.fromLocation( locationLookup.getLocation() );
454
455	break;
456
457	case NOPROVIDER:
458	dismissDialog(DLG_PROGRESS);//TODO:dismissDialogSafe(DLG_PROGRESS);
459	MessageBox.showMessage(StationList.this, getString(stationlist_nolocationprovider), true );
460	//StationList.this.finish();
461	break;
462	case LOCATIONFIXTIMEOUT:
463	if (isRunning) {
464	locationLookup.stopSearch();
465	if (locationLookup.hasLocation()) {
466	stationsFetched.sendEmptyMessage( GOTLOCATION );
467	} else {
468	dismissDialog(DLG_PROGRESS);//TODO:dismissDialogSafe(DLG_PROGRESS);
469
470	AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);
471	builder.setMessage( getString( stationlist_gpstimeout) );
472	builder.setCancelable(true);
473	builder.setPositiveButton(getString(generic_retry), new DialogInterface.OnClickListener() {
474	public void onClick(DialogInterface dialog, int id) {
475	dialog.dismiss();
476	startLookup();
477
478	}
479	});
480	builder.setNegativeButton( getString(generic_cancel), new DialogInterface.OnClickListener() {
481	public void onClick(DialogInterface dialog, int id) {
482	dialog.dismiss();
483	}
484	});
485	builder.show();//TODO:builderShowSafe(builder);
486
487	}
488	}
489	break;
490	}
491	isRunning = false;
492	}
493	};
494
495
496	class FindStationsTask extends AsyncTask<Void,Void,Void> {
497
498	LookupMethod method = LookupMethod.MethodNone;
499	boolean success;
500	String name;
501	Location loc;
502	String ids;
503
504	public void searchByName(String n) {
505
506	method = LookupMethod.ByName;
507	name = n;
508	}
509
510	public void searchByLocation(Location l) {
511	method = LookupMethod.ByLocation;
512	loc = l;
513	}
514
515	public void searchByIds(String id) {
516
517	method = LookupMethod.ByList;
518	ids = id;
519	}
520
521	@Override
522	protected void onPreExecute() {
523
524	if (method.equals(LookupMethod.MethodNone))
525	throw new RuntimeException("Method not set");
526	super.onPreExecute();
527	}
528
529	@Override
530	protected Void doInBackground(Void... params) {
531
532	switch (method) {
533	case ByLocation:
534	success = stationProvider.lookupStations(loc);
535	break;
536	case ByName:
537	success = stationProvider.lookupStationsByName(name);
538	break;
539	case ByList:
540	success = stationProvider.lookupStationsByIds(ids);
541	break;
542	default:
543	success = false; // not possible
544	}
545
546
547	return null;
548	}
549
550	@Override
551	protected void onPostExecute(Void result) {
552	super.onPostExecute(result);
553	dialog.dismiss();//TODO:dismissDialogSafe(dialog);
554
555
556	if (success) {
557	if (stationProvider.getStations().size() == 0) {
558	showMessageAndClose(getString(stationlist_nostations));
559	}
560	stations = stationProvider.getStations();
561
562	StationList.this.getListView().invalidateViews();
563	adapter.setStations( stations );
564
565
566	} else { //communication or parse errors
567	AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);
568	builder.setMessage(getString(stationlist_fetcherror));
569	builder.setCancelable(true);
570	builder.setPositiveButton(getString(generic_retry), new DialogInterface.OnClickListener() {
571	public void onClick(DialogInterface dialog, int id) {
572	dialog.dismiss();
573
574	Runnable runner = null;
575	switch (method) {
576	case ByLocation:
577	runner = new Runnable() {
578	@Override
579	public void run() {
580	startLocatorTask();
581	}
582	};
583	break;
584	case ByName:
585	runner = new Runnable() {
586	@Override
587	public void run() {
588	startNameSearch( FindStationsTask.this.name );
589	}
590	};
591	break;
592	case ByList:
593	runner = new Runnable() {
594	@Override
595	public void run() {
596	startFavoriteLookup();
597	}
598	};
599	break;
600	}
601
602	stationsFetched.post( runner );
603	}
604	});
605	builder.setNegativeButton(getString(generic_cancel), new DialogInterface.OnClickListener() {
606	public void onClick(DialogInterface dialog, int id) {
607	dialog.dismiss();
608	StationList.this.finish();
609	}
610	});
611
612	builder.show();//TODO:builderShowSafe(builder);
613	}
614	}
615	}
616
617
618	class FavoritesMenu implements OnCreateContextMenuListener {
619	private final static int FAVORITES_ADD = 9001;
620	private final static int FAVORITES_REMOVE = 9002;
621
622	private int selectedPosition;
623
624
625	@Override
626	public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
627
628	AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo) menuInfo;
629	selectedPosition = info.position;
630	int stationID = stations.get(selectedPosition).getId();
631
632	if (!favorites.contains(stationID)) {
633	menu.add(0, FAVORITES_ADD, 0, getString(stationlist_addfavorite) );
634	} else {
635	menu.add(0, FAVORITES_REMOVE, 0, getString(stationlist_removefavorite) );
636	}
637
638	}
639
640	public void onContextItemSelected(MenuItem item) {
641	StationBean sb = stations.get(selectedPosition);
642
643	int stationID = sb.getId();
644	if (item.getItemId() == FAVORITES_ADD) {
645	favorites.add(stationID);
646	Toast.makeText(StationList.this, getString(stationlist_stationadded), Toast.LENGTH_SHORT).show();
647	} else {
648
649	favorites.remove(stationID);
650	Toast.makeText(StationList.this, getString(stationlist_stationremoved), Toast.LENGTH_SHORT).show();
651
652
653	if (listType.equals( WelcomeScreen.ListType.ListFavorites) ) {
654	stations.remove(selectedPosition);
655	adapter.notifyDataSetChanged();
656	}
657	}
658	Editor ed = prefs.edit();
659	ed.putString("favorites", favorites.toString());
660	ed.commit();
661	}
662	}
663	}