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

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

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


        void startLocatorTask()
        {
                dialogMessage = getString( stationlist_findingnearby ); 
                showDialogSafe(DLG_PROGRESS);
                
                findStationsTask = new FindStationsTask();
                findStationsTask.searchByLocation( locationLookup.getLocation() );
                findStationsTask.execute();     
        }
                
        
        ////////////////////////////////////////////////////////////////////////////
        // Inner classes

        class StationsFetchedHandler extends Handler {
                @Override
                public void handleMessage(Message msg) {

                        switch (msg.what) {
                        case GOTLOCATION:
                                dismissDialogSafe(DLG_PROGRESS);
                                
                                startLocatorTask();
                                location = GeoPair.fromLocation( locationLookup.getLocation() );
                                
                                break;

                        case NOPROVIDER:
                                dismissDialogSafe(DLG_PROGRESS);
                                MessageBox.showMessage(StationList.this, getString(stationlist_nolocationprovider), true );
                                //StationList.this.finish();
                                break;
                        case LOCATIONFIXTIMEOUT:                                
                                if (isRunning) {
                                        locationLookup.stopSearch();
                                        if (locationLookup.hasLocation()) {
                                                stationsFetched.sendEmptyMessage( GOTLOCATION ); 
                                        } else {                                                
                                                dismissDialogSafe(DLG_PROGRESS);
                                                
                                                AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);                                                
                                                builder.setMessage(  getString( stationlist_gpstimeout) );
                                                builder.setCancelable(true);
                                                builder.setPositiveButton(getString(generic_retry), new DialogInterface.OnClickListener() {
                                                        public void onClick(DialogInterface dialog, int id) {
                                                                dialog.dismiss();
                                                                startLookup();
                                                                
                                                        }
                                                });
                                                builder.setNegativeButton( getString(generic_cancel), new DialogInterface.OnClickListener() {
                                                        public void onClick(DialogInterface dialog, int id) {
                                                                dialog.dismiss();
                                                        }                                                       
                                                });
                                                builderShowSafe(builder); // builder.show()

                                        }
                                }
                                break;
                        }
                        isRunning = false;
                }
        };

        
        class FindStationsTask extends AsyncTask<Void,Void,Void> {
                
                LookupMethod method = LookupMethod.MethodNone;
                boolean success;
                String name;
                Location loc;
                String ids;
                
                public void searchByName(String n) {
                        
                        method = LookupMethod.ByName;
                        name = n;
                }
                
                public void searchByLocation(Location l) {
                        method = LookupMethod.ByLocation;
                        loc = l;
                }
                
                public void searchByIds(String id) {
                        
                        method = LookupMethod.ByList;
                        ids = id;
                }
                
                @Override
                protected void onPreExecute() {

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

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

                @Override
                protected void onPostExecute(Void result) {
                        super.onPostExecute(result);
                        dismissDialogSafe(dialog);
                        
                        
                        if (success) {                          
                                if (stationProvider.getStations().size() == 0) {
                                        showMessageAndClose(getString(stationlist_nostations));
                                }
                                stations = stationProvider.getStations();

                                StationList.this.getListView().invalidateViews();
                                adapter.setStations( stations );                                
                                
                                
                        } else { //communication or parse errors
                                AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);                                                
                                builder.setMessage(getString(stationlist_fetcherror));                          
                                builder.setCancelable(true);
                                builder.setPositiveButton(getString(generic_retry), new DialogInterface.OnClickListener() {
                                        public void onClick(DialogInterface dialog, int id) {
                                                dialog.dismiss();
                                                
                                                Runnable runner = null;
                                                switch (method) {
                                                case ByLocation:
                                                        runner = new Runnable() {
                                                                @Override
                                                                public void run() {
                                                                        startLocatorTask();                                                             
                                                                }
                                                        };
                                                        break;
                                                case ByName:
                                                        runner = new Runnable() {
                                                                @Override
                                                                public void run() {
                                                                        startNameSearch( FindStationsTask.this.name );
                                                                }
                                                        };
                                                        break;
                                                case ByList:
                                                        runner = new Runnable() {
                                                                @Override
                                                                public void run() {
                                                                        startFavoriteLookup();
                                                                }
                                                        };
                                                        break;
                                                }
                                                
                                                stationsFetched.post( runner );
                                        }
                                });
                                builder.setNegativeButton(getString(generic_cancel), new DialogInterface.OnClickListener() {
                                        public void onClick(DialogInterface dialog, int id) {
                                                dialog.dismiss();
                                                StationList.this.finish();
                                        }                                                       
                                });
                                
                                builderShowSafe(builder); // builder.show()
                        }
                }
        }
        
        
        class FavoritesMenu implements OnCreateContextMenuListener {
                private final static int FAVORITES_ADD = 9001;
                private final static int FAVORITES_REMOVE = 9002;
                
                private int selectedPosition;
                
                
                @Override
                public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
                                                
                        AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo) menuInfo;
                        selectedPosition = info.position;
                        int stationID = stations.get(selectedPosition).getId();

                        if (!favorites.contains(stationID)) {
                                menu.add(0, FAVORITES_ADD, 0, getString(stationlist_addfavorite) );
                        } else {
                                menu.add(0, FAVORITES_REMOVE, 0, getString(stationlist_removefavorite) );
                        }
                        
                }
                
                public void onContextItemSelected(MenuItem item) {
                        StationBean sb = stations.get(selectedPosition);
                        
                        int stationID = sb.getId();
                        if (item.getItemId() == FAVORITES_ADD) {
                                favorites.add(stationID);
                                Toast.makeText(StationList.this, getString(stationlist_stationadded), Toast.LENGTH_SHORT).show();
                        } else {
                                
                                favorites.remove(stationID);
                                Toast.makeText(StationList.this, getString(stationlist_stationremoved), Toast.LENGTH_SHORT).show();
                                
                                
                                if (listType.equals( WelcomeScreen.ListType.ListFavorites) ) {
                                        stations.remove(selectedPosition);
                                        adapter.notifyDataSetChanged();
                                }
                        }
                        Editor ed = prefs.edit();
                        ed.putString("favorites", favorites.toString());
                        ed.commit();
                }
        }
}
1	torben	237	package dk.thoerup.traininfo;
2
3	torben	258	import java.util.ArrayList;
4			import java.util.List;
5
6	torben	493
7	torben	731	import android.app.Activity;
8	torben	336	import android.app.AlertDialog;
9	torben	237	import android.app.Dialog;
10			import android.app.ListActivity;
11			import android.app.ProgressDialog;
12	torben	336	import android.content.DialogInterface;
13	torben	237	import android.content.Intent;
14	torben	433	import android.content.SharedPreferences;
15	torben	435	import android.content.SharedPreferences.Editor;
16	torben	319	import android.location.Location;
17	torben	241	import android.os.AsyncTask;
18	torben	237	import android.os.Bundle;
19			import android.os.Handler;
20			import android.os.Message;
21	torben	493
22	torben	630	import android.util.Log;
23	torben	433	import android.view.ContextMenu;
24	torben	381	import android.view.LayoutInflater;
25	torben	368	import android.view.Menu;
26			import android.view.MenuItem;
27	torben	237	import android.view.View;
28	torben	433	import android.view.ContextMenu.ContextMenuInfo;
29			import android.view.View.OnCreateContextMenuListener;
30			import android.widget.AdapterView;
31	torben	381	import android.widget.EditText;
32	torben	237	import android.widget.ListView;
33	torben	433	import android.widget.Toast;
34	torben	319	import dk.thoerup.traininfo.provider.ProviderFactory;
35			import dk.thoerup.traininfo.provider.StationProvider;
36	torben	368	import dk.thoerup.traininfo.stationmap.GeoPair;
37			import dk.thoerup.traininfo.stationmap.StationMapView;
38	torben	433	import dk.thoerup.traininfo.util.IntSet;
39	torben	245	import dk.thoerup.traininfo.util.MessageBox;
40	torben	237
41	torben	561	import static dk.thoerup.traininfo.R.string.*;
42
43	torben	336	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	torben	368
49	torben	381	public static final int OPTIONS_MAP = 2003;
50	torben	481	public static final int OPTIONS_GPSINFO = 2004;
51	torben	433
52	torben	381	public static final int DLG_PROGRESS = 3001;
53			public static final int DLG_STATIONNAME = 3002;
54	torben	237
55	torben	948
56			public static final int GPS_TIMEOUT_MS = 17500; //how long are we willing to wait for gps fix -in milliseconds
57
58
59	torben	440	static enum LookupMethod {
60			ByLocation,
61			ByName,
62			ByList,
63			MethodNone
64			}
65
66
67	torben	336	String dialogMessage = "";
68	torben	237	ProgressDialog dialog;
69	torben	482	LocationLookup locationLookup = null;
70	torben	440	FindStationsTask findStationsTask;
71	torben	381	StationsFetchedHandler stationsFetched = new StationsFetchedHandler();
72	torben	237
73	torben	374	GeoPair location = new GeoPair();
74	torben	731
75			boolean isLaunchedforShortcut;
76	torben	258	boolean isRunning = false;
77			List<StationBean> stations = new ArrayList<StationBean>();
78
79	torben	319	StationProvider stationProvider = ProviderFactory.getStationProvider();
80	torben	381
81			StationListAdapter adapter = null;
82	torben	258
83	torben	433	FavoritesMenu contextMenu = new FavoritesMenu();
84			IntSet favorites = new IntSet();
85	torben	481
86			WelcomeScreen.ListType listType;
87	torben	433	SharedPreferences prefs;
88
89	torben	381	///////////////////////////////////////////////////////////////////////////////////////////
90			//Activity call backs
91
92	torben	258	@SuppressWarnings("unchecked")
93	torben	237	@Override
94			public void onCreate(Bundle savedInstanceState) {
95			super.onCreate(savedInstanceState);
96	torben	481	setContentView(R.layout.stationlist);
97	torben	237
98	torben	241
99	torben	237	adapter = new StationListAdapter(this);
100			setListAdapter(adapter);
101
102	torben	433	ListView lv = getListView();
103			lv.setOnCreateContextMenuListener(contextMenu);
104
105	torben	482	locationLookup = new LocationLookup(this, stationsFetched);
106	torben	433
107
108			prefs = getSharedPreferences("TrainStation", 0);
109			String favoriteString = prefs.getString("favorites", "");
110			if (! favoriteString.equals("") ) {
111			favorites.fromString(favoriteString);
112			}
113
114	torben	482	listType = (WelcomeScreen.ListType) getIntent().getSerializableExtra("type");
115			setTitle();
116
117	torben	731	isLaunchedforShortcut = getIntent().getBooleanExtra("shortcut", false);
118
119	torben	258	if (savedInstanceState == null) {
120	torben	482
121
122	torben	481	switch (listType) {
123			case ListNearest:
124			startLookup();
125			break;
126			case ListSearch:
127	torben	701	this.showDialogSafe(DLG_STATIONNAME);
128	torben	481	break;
129			case ListFavorites:
130			startFavoriteLookup();
131			break;
132			default:
133			// Not possible !?!
134			}
135
136	torben	258	} else {
137			stations = (ArrayList<StationBean>) savedInstanceState.getSerializable("stations");
138	torben	260	adapter.setStations(stations);
139	torben	374	location = (GeoPair) savedInstanceState.getSerializable("location");
140	torben	258	}
141	torben	482
142	torben	237	}
143	torben	918
144
145			@Override
146			protected void onDestroy() {
147			super.onDestroy();
148
149			if (findStationsTask != null) {
150			findStationsTask.cancel(true);
151			}
152	torben	919	if (locationLookup != null) {
153			locationLookup.stopSearch();
154			}
155			isRunning = false;
156	torben	918	}
157
158
159	torben	482	protected void setTitle() {
160	torben	561	String dialogTitle = getResources().getString(app_name);
161	torben	482	switch (listType) {
162			case ListNearest:
163	torben	561	dialogTitle += " - " + getString(stationlist_nearbystations);
164	torben	482	break;
165			case ListSearch:
166	torben	561	dialogTitle += " - " + getString(stationlist_search);
167	torben	482	break;
168			case ListFavorites:
169	torben	561	dialogTitle += " - " + getString(stationlist_favorites);
170	torben	482	break;
171			default:
172			dialogTitle = "";//not possible
173			}
174
175			setTitle(dialogTitle);
176	torben	701
177	torben	482	}
178
179
180	torben	701	/* 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			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	torben	725	public void dismissDialogSafe(Dialog dlg) {
202			try {
203			dlg.dismiss();
204			} catch (Exception e) {
205			Log.e("StationList", "dismissDialog failed", e);
206			}
207			}
208	torben	701
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			/* EOF rude and ugly dialog hack */
218
219	torben	371
220
221	torben	243	@Override
222			public void onSaveInstanceState(Bundle outState)
223			{
224	torben	258	if (dialog != null && dialog.isShowing())
225	torben	243	dialog.dismiss();
226	torben	258	outState.putSerializable("stations", (ArrayList<StationBean>) stations);
227	torben	374	outState.putSerializable("location", location);
228	torben	482
229	torben	243	}
230	torben	237
231	torben	243
232	torben	237
233			@Override
234	torben	368	public boolean onCreateOptionsMenu(Menu menu) {
235	torben	419	MenuItem item;
236	torben	561
237			item = menu.add(0, OPTIONS_MAP, 0, getString(stationlist_stationmap));
238	torben	419	item.setIcon(android.R.drawable.ic_menu_mapmode);
239
240	torben	561	item = menu.add(0, OPTIONS_GPSINFO, 0, getString(stationlist_gpsinfo));
241	torben	481	item.setIcon(android.R.drawable.ic_menu_mapmode);
242
243	torben	368	return true;
244			}
245
246			@Override
247			public boolean onOptionsItemSelected(MenuItem item) {
248	torben	381	boolean retval = true;
249
250	torben	481	//TODO: Cleanup
251	torben	368	switch (item.getItemId()) {
252			case OPTIONS_MAP:
253
254			Intent intent = new Intent(this,StationMapView.class);
255
256			ArrayList<GeoPair> stationPoints = new ArrayList<GeoPair>();
257			for (StationBean st : stations ) {
258	torben	369	stationPoints.add( new GeoPair(st.getLatitude(), st.getLongitude(), st.getName()) );
259	torben	368	}
260
261			intent.putExtra("stations", stationPoints);
262
263			startActivity(intent);
264			break;
265	torben	481	case OPTIONS_GPSINFO:
266	torben	482	Location loc = locationLookup.getLocation();
267	torben	371	StringBuffer message = new StringBuffer();
268	torben	561	message.append( getString(stationlist_locationinfo) ).append(":\n");
269	torben	554	if (loc != null) {
270	torben	561	message.append( getString(stationlist_obtainedby) ).append( loc.getProvider() ).append("\n");
271			message.append( getString(stationlist_accuracy) ).append( (int)loc.getAccuracy()).append("m\n");
272	torben	564	message.append( getString(stationlist_latitude) ).append( (float)loc.getLatitude()).append("\n");
273			message.append( getString(stationlist_longitude) ).append( (float)loc.getLongitude() ).append("\n");
274	torben	554	} else {
275	torben	561	message.append( getString(stationlist_nolocation) );
276	torben	556	}
277
278	torben	906	MessageBox.showMessage(this, message.toString(), false);
279	torben	371	break;
280	torben	368	default:
281			retval = super.onOptionsItemSelected(item);
282			}
283
284			return retval;
285			}
286	torben	433
287
288	torben	368
289			@Override
290	torben	433	public boolean onContextItemSelected(MenuItem item) {
291			contextMenu.onContextItemSelected(item);
292			return true;
293
294
295			}
296	torben	556
297			public void showMessageAndClose(String message) {
298			AlertDialog.Builder builder = new AlertDialog.Builder(this);
299			builder.setMessage(message)
300			.setCancelable(false)
301			.setPositiveButton("OK", new DialogInterface.OnClickListener() {
302			public void onClick(DialogInterface dialog, int id) {
303			dialog.dismiss();
304			StationList.this.finish();
305			}
306			})
307			.show();
308			}
309	torben	433
310
311
312
313			@Override
314	torben	237	protected Dialog onCreateDialog(int id) {
315			switch (id) {
316			case DLG_PROGRESS:
317			ProgressDialog dlg = new ProgressDialog(this);
318	torben	561	dlg.setMessage( getString(stationlist_waitforlocation) );
319	torben	237	dlg.setCancelable(false);
320	torben	336	return dlg;
321	torben	381	case DLG_STATIONNAME:
322			LayoutInflater factory = LayoutInflater.from(this);
323			final View rootView = factory.inflate(R.layout.textinput, null);
324
325
326			AlertDialog.Builder builder = new AlertDialog.Builder(this);
327
328	torben	561	builder.setTitle( getString(stationlist_stationsearch) );
329	torben	381	builder.setView(rootView);
330			builder.setCancelable(true);
331	torben	561	builder.setPositiveButton( getString(generic_search), new DialogInterface.OnClickListener() {
332	torben	381	public void onClick(DialogInterface dialog, int which) {
333			EditText et = (EditText) rootView.findViewById(R.id.EditText);
334			dialog.dismiss();
335	torben	713	String search = et.getText().toString().trim();
336			if (search.length() >= 2) {
337			startNameSearch(search);
338	torben	381	} else {
339	torben	561	showMessageAndClose( getString(stationlist_twocharmin) );
340	torben	381	}
341			}
342			});
343	torben	561	builder.setNegativeButton(getString(generic_cancel), new DialogInterface.OnClickListener() {
344	torben	381	public void onClick(DialogInterface dialog, int which) {
345			dialog.dismiss();
346	torben	555	StationList.this.finish(); // Close this Activity
347	torben	381	}
348			});
349			return builder.create();
350
351	torben	237	default:
352			return super.onCreateDialog(id);
353			}
354
355			}
356
357
358			@Override
359			protected void onPrepareDialog(int id, Dialog dialog) {
360			super.onPrepareDialog(id, dialog);
361			switch (id) {
362			case DLG_PROGRESS:
363			this.dialog = (ProgressDialog) dialog;
364	torben	336	if (!dialogMessage.equals("")) {
365			this.dialog.setMessage(dialogMessage);
366			dialogMessage = "";
367			}
368	torben	237	break;
369			}
370			}
371	torben	381
372			@Override
373			protected void onListItemClick(ListView l, View v, int position, long id) {
374			super.onListItemClick(l, v, position, id);
375
376			StationBean station = stations.get(position);
377
378	torben	731	if (isLaunchedforShortcut == true) {
379			Intent i = new Intent();
380			i.putExtra("station", station);
381			setResult(Activity.RESULT_OK, i);
382			finish();
383			} else {
384			Intent intent = new Intent(this, DepartureList.class);
385			intent.putExtra("stationbean", station);
386			startActivity(intent);
387			}
388	torben	381	}
389
390			/////////////////////////////////////////////////////////////
391			//
392
393	torben	237	public void startLookup() {
394	torben	561	isRunning = true;
395			dialogMessage = getString( stationlist_waitforlocation );
396	torben	701	showDialogSafe(DLG_PROGRESS);
397	torben	237
398	torben	482	locationLookup.locateStations();
399	torben	948	stationsFetched.sendEmptyMessageDelayed(LOCATIONFIXTIMEOUT, GPS_TIMEOUT_MS);
400	torben	237	}
401	torben	381
402			void startNameSearch(String name) {
403	torben	561	dialogMessage = getString( stationlist_findbyname );
404	torben	701	showDialogSafe(DLG_PROGRESS);
405	torben	237
406	torben	440	findStationsTask = new FindStationsTask();
407	torben	579	findStationsTask.searchByName(name);
408	torben	440	findStationsTask.execute();
409	torben	381
410			}
411	torben	433
412			public void startFavoriteLookup() {
413
414	torben	440	if (favorites.size() > 0) {
415	torben	561	dialogMessage = getString( stationlist_loadfavorites );
416	torben	701	showDialogSafe(DLG_PROGRESS);
417	torben	237
418	torben	440	findStationsTask = new FindStationsTask();
419	torben	579	findStationsTask.searchByIds( favorites.toString() );
420	torben	440	findStationsTask.execute();
421	torben	433	} else {
422	torben	561	showMessageAndClose( getString( stationlist_nofavorites ) );
423	torben	433	}
424			}
425	torben	381
426	torben	433
427	torben	381
428			void startLocatorTask()
429			{
430	torben	561	dialogMessage = getString( stationlist_findingnearby );
431	torben	701	showDialogSafe(DLG_PROGRESS);
432	torben	381
433	torben	440	findStationsTask = new FindStationsTask();
434	torben	482	findStationsTask.searchByLocation( locationLookup.getLocation() );
435	torben	440	findStationsTask.execute();
436	torben	381	}
437
438
439			////////////////////////////////////////////////////////////////////////////
440			// Inner classes
441
442			class StationsFetchedHandler extends Handler {
443	torben	237	@Override
444			public void handleMessage(Message msg) {
445	torben	336
446	torben	237	switch (msg.what) {
447			case GOTLOCATION:
448	torben	701	dismissDialogSafe(DLG_PROGRESS);
449	torben	336
450			startLocatorTask();
451	torben	482	location = GeoPair.fromLocation( locationLookup.getLocation() );
452	torben	336
453	torben	237	break;
454	torben	319
455	torben	237	case NOPROVIDER:
456	torben	701	dismissDialogSafe(DLG_PROGRESS);
457	torben	906	MessageBox.showMessage(StationList.this, getString(stationlist_nolocationprovider), true );
458			//StationList.this.finish();
459	torben	237	break;
460	torben	336	case LOCATIONFIXTIMEOUT:
461	torben	237	if (isRunning) {
462	torben	482	locationLookup.stopSearch();
463			if (locationLookup.hasLocation()) {
464	torben	336	stationsFetched.sendEmptyMessage( GOTLOCATION );
465			} else {
466	torben	701	dismissDialogSafe(DLG_PROGRESS);
467	torben	336
468			AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);
469	torben	561	builder.setMessage( getString( stationlist_gpstimeout) );
470	torben	336	builder.setCancelable(true);
471	torben	561	builder.setPositiveButton(getString(generic_retry), new DialogInterface.OnClickListener() {
472	torben	336	public void onClick(DialogInterface dialog, int id) {
473			dialog.dismiss();
474			startLookup();
475
476			}
477			});
478	torben	561	builder.setNegativeButton( getString(generic_cancel), new DialogInterface.OnClickListener() {
479	torben	336	public void onClick(DialogInterface dialog, int id) {
480			dialog.dismiss();
481			}
482	torben	701	});
483			builderShowSafe(builder); // builder.show()
484	torben	336
485	torben	285	}
486	torben	237	}
487			break;
488			}
489			isRunning = false;
490			}
491			};
492	torben	381
493	torben	237
494	torben	440	class FindStationsTask extends AsyncTask<Void,Void,Void> {
495	torben	336
496	torben	381	LookupMethod method = LookupMethod.MethodNone;
497			boolean success;
498			String name;
499			Location loc;
500	torben	433	String ids;
501	torben	237
502	torben	579	public void searchByName(String n) {
503	torben	317
504	torben	381	method = LookupMethod.ByName;
505			name = n;
506	torben	317	}
507
508	torben	381	public void searchByLocation(Location l) {
509			method = LookupMethod.ByLocation;
510			loc = l;
511			}
512
513	torben	579	public void searchByIds(String id) {
514	torben	433
515			method = LookupMethod.ByList;
516			ids = id;
517			}
518
519	torben	241	@Override
520			protected void onPreExecute() {
521	torben	258
522	torben	381	if (method.equals(LookupMethod.MethodNone))
523			throw new RuntimeException("Method not set");
524	torben	241	super.onPreExecute();
525			}
526
527			@Override
528			protected Void doInBackground(Void... params) {
529	torben	473
530			switch (method) {
531			case ByLocation:
532	torben	381	success = stationProvider.lookupStations(loc);
533	torben	473	break;
534			case ByName:
535	torben	433	success = stationProvider.lookupStationsByName(name);
536	torben	473	break;
537			case ByList:
538	torben	433	success = stationProvider.lookupStationsByIds(ids);
539	torben	473	break;
540			default:
541			success = false; // not possible
542			}
543	torben	433
544	torben	473
545	torben	241	return null;
546			}
547
548			@Override
549			protected void onPostExecute(Void result) {
550			super.onPostExecute(result);
551	torben	725	dismissDialogSafe(dialog);
552	torben	319
553	torben	473
554	torben	319	if (success) {
555	torben	566	if (stationProvider.getStations().size() == 0) {
556			showMessageAndClose(getString(stationlist_nostations));
557			}
558	torben	319	stations = stationProvider.getStations();
559	torben	917
560			StationList.this.getListView().invalidateViews();
561	torben	481	adapter.setStations( stations );
562	torben	319
563	torben	917
564	torben	319	} else { //communication or parse errors
565	torben	336	AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);
566	torben	844	builder.setMessage(getString(stationlist_fetcherror));
567	torben	336	builder.setCancelable(true);
568	torben	561	builder.setPositiveButton(getString(generic_retry), new DialogInterface.OnClickListener() {
569	torben	336	public void onClick(DialogInterface dialog, int id) {
570			dialog.dismiss();
571
572	torben	652	Runnable runner = null;
573			switch (method) {
574			case ByLocation:
575			runner = new Runnable() {
576			@Override
577			public void run() {
578			startLocatorTask();
579			}
580			};
581			break;
582			case ByName:
583			runner = new Runnable() {
584			@Override
585			public void run() {
586			startNameSearch( FindStationsTask.this.name );
587			}
588			};
589			break;
590			case ByList:
591			runner = new Runnable() {
592			@Override
593			public void run() {
594			startFavoriteLookup();
595			}
596			};
597			break;
598			}
599
600			stationsFetched.post( runner );
601	torben	336	}
602			});
603	torben	561	builder.setNegativeButton(getString(generic_cancel), new DialogInterface.OnClickListener() {
604	torben	336	public void onClick(DialogInterface dialog, int id) {
605			dialog.dismiss();
606	torben	843	StationList.this.finish();
607	torben	336	}
608	torben	701	});
609
610			builderShowSafe(builder); // builder.show()
611	torben	319	}
612	torben	241	}
613			}
614	torben	433
615
616			class FavoritesMenu implements OnCreateContextMenuListener {
617			private final static int FAVORITES_ADD = 9001;
618			private final static int FAVORITES_REMOVE = 9002;
619
620			private int selectedPosition;
621
622
623			@Override
624			public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
625
626			AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo) menuInfo;
627			selectedPosition = info.position;
628			int stationID = stations.get(selectedPosition).getId();
629
630	torben	441	if (!favorites.contains(stationID)) {
631	torben	561	menu.add(0, FAVORITES_ADD, 0, getString(stationlist_addfavorite) );
632	torben	433	} else {
633	torben	563	menu.add(0, FAVORITES_REMOVE, 0, getString(stationlist_removefavorite) );
634	torben	433	}
635
636			}
637
638			public void onContextItemSelected(MenuItem item) {
639			StationBean sb = stations.get(selectedPosition);
640
641			int stationID = sb.getId();
642			if (item.getItemId() == FAVORITES_ADD) {
643			favorites.add(stationID);
644	torben	561	Toast.makeText(StationList.this, getString(stationlist_stationadded), Toast.LENGTH_SHORT).show();
645	torben	433	} else {
646	torben	473
647	torben	433	favorites.remove(stationID);
648	torben	561	Toast.makeText(StationList.this, getString(stationlist_stationremoved), Toast.LENGTH_SHORT).show();
649	torben	473
650	torben	481
651			if (listType.equals( WelcomeScreen.ListType.ListFavorites) ) {
652	torben	473	stations.remove(selectedPosition);
653			adapter.notifyDataSetChanged();
654			}
655	torben	433	}
656	torben	435	Editor ed = prefs.edit();
657			ed.putString("favorites", favorites.toString());
658			ed.commit();
659	torben	433	}
660			}
661	torben	237	}