thoerup/traininfo/StationList.java

package dk.thoerup.traininfo;

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

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.location.Address;
import android.location.Geocoder;
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.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.EditText;
import android.widget.ListView;
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.MessageBox;

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_RESCAN = 2001;
        public static final int OPTIONS_NAMESEARCH = 2002;
        public static final int OPTIONS_MAP = 2003;
        public static final int OPTIONS_ABOUT = 2004;

        
        public static final int DLG_PROGRESS = 3001;
        public static final int DLG_STATIONNAME = 3002;
        
        /** Called when the activity is first created. */
        String dialogMessage = "";
        ProgressDialog dialog;
        LocationLookup locator = null;
        LocatorTask locatorTask;
        StationsFetchedHandler stationsFetched = new StationsFetchedHandler();
        
        GeoPair location = new GeoPair();
        
        boolean isRunning = false;
        List<StationBean> stations = new ArrayList<StationBean>();
        
        StationProvider stationProvider = ProviderFactory.getStationProvider();
                
        StationListAdapter adapter = null;
        
        static enum LookupMethod {
                ByLocation,
                ByName,
                MethodNone
        }
        
        ///////////////////////////////////////////////////////////////////////////////////////////
        //Activity call backs
        
        @SuppressWarnings("unchecked")
        @Override
        public void onCreate(Bundle savedInstanceState) {
                super.onCreate(savedInstanceState);
                setContentView(R.layout.main);
                
                
                adapter = new StationListAdapter(this);
                setListAdapter(adapter);
                
                locator = new LocationLookup(this, stationsFetched);
                if (savedInstanceState == null) {
                        startLookup();
                } else {
                        stations = (ArrayList<StationBean>) savedInstanceState.getSerializable("stations");
                        adapter.setStations(stations);
                        location = (GeoPair) savedInstanceState.getSerializable("location");
                }
        }


    @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_RESCAN, 0, "Find nearest stations");
                item.setIcon(android.R.drawable.ic_menu_mylocation);
                
                item = menu.add(0, OPTIONS_NAMESEARCH, 0, "Search for station");
                item.setIcon(android.R.drawable.ic_menu_search);
                
                item = menu.add(0, OPTIONS_MAP, 0, "Show station map");
                item.setIcon(android.R.drawable.ic_menu_mapmode);
                
                item = menu.add(0, OPTIONS_ABOUT, 0, "About");
                item.setIcon(android.R.drawable.ic_menu_info_details);
                return true;
        }

        @Override
        public boolean onOptionsItemSelected(MenuItem item) {
                boolean retval = true;

                
                switch (item.getItemId()) {
                case OPTIONS_RESCAN:
                        startLookup();
                        break;
                case OPTIONS_NAMESEARCH:
                        showDialog(DLG_STATIONNAME);
                        break;
                case OPTIONS_MAP:
                        
                        Intent intent = new Intent(this,StationMapView.class);
                        intent.putExtra("userlocation", location );
                        
                        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_ABOUT:
                        String ver = this.getResources().getString(R.string.app_version);
                        
                        Location loc = locator.getLocation();
                        StringBuffer message = new StringBuffer();
                        message.append("TrainInfo DK v").append(ver).append("\n");
                        message.append("By Torben Nielsen\n");
                        message.append("\n");
                        message.append("Location info:\n");
                        message.append("-Obtained by: ").append(loc != null ? loc.getProvider() : "-").append("\n");
                        message.append("-Accuracy: ").append(loc != null ? (int)loc.getAccuracy() : "-").append("m\n");

                        MessageBox.showMessage(this, message.toString());
                        break;
                default:
                        retval = super.onOptionsItemSelected(item);
                }
                
                return retval;
        }

        @Override
        protected Dialog onCreateDialog(int id) {
                switch (id) {
                case DLG_PROGRESS:
                        ProgressDialog dlg = new ProgressDialog(this);
                        dlg.setMessage("Wait for location fix");
                        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("Station search");
                        builder.setView(rootView);
                        builder.setCancelable(true);
                        builder.setPositiveButton("Search", new DialogInterface.OnClickListener() {
                                public void onClick(DialogInterface dialog, int which) {
                                        EditText et = (EditText) rootView.findViewById(R.id.EditText);
                                        dialog.dismiss();
                                        if (et.getText().toString().length() >= 2) {
                                                startNameSearch(et.getText().toString());
                                        } else {
                                                MessageBox.showMessage(StationList.this, "Two characters minimum" );
                                        }
                                }
                        });
                        builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
                                public void onClick(DialogInterface dialog, int which) {
                                        dialog.dismiss();
                                }
                        });                     
                        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);

                double latitude = station.getLatitude();
                double longitude = station.getLongitude();


                Intent intent = new Intent(this, DepartureList.class);
                intent.putExtra("name", station.getName());
                intent.putExtra("distance", station.getDistance());
                intent.putExtra("latitude", latitude);
                intent.putExtra("longitude", longitude);
                intent.putExtra("stationid", station.getId());
                intent.putExtra("address", station.getAddress());
                startActivity(intent);
        }

        /////////////////////////////////////////////////////////////
        //

        public void startLookup() {
                isRunning = true;
                dialogMessage = "Wait for location fix";
                showDialog(DLG_PROGRESS);
                
                locator.locateStations();
                stationsFetched.sendEmptyMessageDelayed(LOCATIONFIXTIMEOUT, 20000);
        }
        
        void startNameSearch(String name) {
                dialogMessage = "Finding stations by name";
                showDialog(DLG_PROGRESS);

                locatorTask = new LocatorTask();
                locatorTask.searchByName(name, locator.getLocation());
                locatorTask.execute();
                
        }


        void startLocatorTask()
        {
                dialogMessage = "Finding nearby stations"; 
                showDialog(DLG_PROGRESS);
                
                locatorTask = new LocatorTask();
                locatorTask.searchByLocation( locator.getLocation() );
                locatorTask.execute();  
        }
        

        String lookupAddress(double latitude, double longitude) {
                
                Geocoder coder = new Geocoder(this, new Locale("da"));
                StringBuilder sb = new StringBuilder();
                Log.i("lookupaddr", "" + latitude + "/" + longitude);
                try {
                        List<Address> addressList = coder.getFromLocation(latitude, longitude, 1);
                        Address addr = addressList.get(0);
                        
                        
                        int max = addr.getMaxAddressLineIndex();
                        for (int i=0; i<max; i++) {
                                if (i>0)
                                        sb.append(", ");
                                
                                sb.append(addr.getAddressLine(i));
                        }
                        
                        
                } catch (Exception e) {
                        Log.e("DepartureList", "geocoder failed", e);
                }
                
                return sb.toString();
        }
        
        
        ////////////////////////////////////////////////////////////////////////////
        // Inner classes

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

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

                        case NOPROVIDER:
                                dismissDialog(DLG_PROGRESS);
                                MessageBox.showMessage(StationList.this,"No location provider enabled. Plase enable gps.");
                                break;
                        case LOCATIONFIXTIMEOUT:                                
                                if (isRunning) {
                                        locator.stopSearch();
                                        if (locator.hasLocation()) {
                                                stationsFetched.sendEmptyMessage( GOTLOCATION ); 
                                        } else {                                                
                                                dismissDialog(DLG_PROGRESS);
                                                
                                                AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);                                                
                                                builder.setMessage("GPS fix timed out");
                                                builder.setCancelable(true);
                                                builder.setPositiveButton("Retry", new DialogInterface.OnClickListener() {
                                                        public void onClick(DialogInterface dialog, int id) {
                                                                dialog.dismiss();
                                                                startLookup();
                                                                
                                                        }
                                                });
                                                builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
                                                        public void onClick(DialogInterface dialog, int id) {
                                                                dialog.dismiss();
                                                        }                                                       
                                                });                                                                                             
                                                builder.show();

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

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

                        if (method.equals(LookupMethod.MethodNone))
                                throw new RuntimeException("Method not set");
                        super.onPreExecute();
                }
                
                @Override
                protected Void doInBackground(Void... params) {
                
                        if (method.equals(LookupMethod.ByLocation))
                                success = stationProvider.lookupStations(loc);
                        
                        if (method.equals(LookupMethod.ByName))
                                success = stationProvider.lookupStations(name);
                        
                        Location dummy = new Location("gps");
                        List<StationBean> stations = stationProvider.getStations();
                        
                        for (StationBean station : stations) { 
                                String addr = lookupAddress(station.getLatitude(), station.getLongitude());
                                station.setAddress(addr);
                                
                                if (method.equals(LookupMethod.ByName) ) {
                                        dummy.setLatitude(station.getLatitude());
                                        dummy.setLongitude(station.getLongitude());
                                        station.setDistance( (int)loc.distanceTo(dummy) );
                                }
                        }                                               
                        
                        return null;
                }

                @Override
                protected void onPostExecute(Void result) {
                        super.onPostExecute(result);
                        dialog.dismiss();
                        
                        if (success) {                          
                                if (stationProvider.getStations().size() == 0)
                                        MessageBox.showMessage(StationList.this, "No stations found!"); // this should not be possible !?!
                                stations = stationProvider.getStations();
                                adapter.setStations( stations );                                
                                
                        } else { //communication or parse errors
                                AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);                                                
                                builder.setMessage("Error on finding nearby stations");
                                builder.setCancelable(true);
                                builder.setPositiveButton("Retry", new DialogInterface.OnClickListener() {
                                        public void onClick(DialogInterface dialog, int id) {
                                                dialog.dismiss();
                                                
                                                stationsFetched.post( new Runnable() {
                                                        @Override
                                                        public void run() {
                                                                startLocatorTask();                                                             
                                                        }
                                                });
                                        }
                                });
                                builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
                                        public void onClick(DialogInterface dialog, int id) {
                                                dialog.dismiss();
                                        }                                                       
                                });                                                                                             
                                builder.show();                         
                        }
                }
        }
}
1	torben	237	package dk.thoerup.traininfo;
2
3	torben	258	import java.util.ArrayList;
4			import java.util.List;
5	torben	294	import java.util.Locale;
6	torben	258
7	torben	336	import android.app.AlertDialog;
8	torben	237	import android.app.Dialog;
9			import android.app.ListActivity;
10			import android.app.ProgressDialog;
11	torben	336	import android.content.DialogInterface;
12	torben	237	import android.content.Intent;
13	torben	294	import android.location.Address;
14			import android.location.Geocoder;
15	torben	319	import android.location.Location;
16	torben	241	import android.os.AsyncTask;
17	torben	237	import android.os.Bundle;
18			import android.os.Handler;
19			import android.os.Message;
20	torben	294	import android.util.Log;
21	torben	381	import android.view.LayoutInflater;
22	torben	368	import android.view.Menu;
23			import android.view.MenuItem;
24	torben	237	import android.view.View;
25	torben	381	import android.widget.EditText;
26	torben	237	import android.widget.ListView;
27	torben	319	import dk.thoerup.traininfo.provider.ProviderFactory;
28			import dk.thoerup.traininfo.provider.StationProvider;
29	torben	368	import dk.thoerup.traininfo.stationmap.GeoPair;
30			import dk.thoerup.traininfo.stationmap.StationMapView;
31	torben	245	import dk.thoerup.traininfo.util.MessageBox;
32	torben	237
33	torben	336	public class StationList extends ListActivity {
34			public static final int GOTLOCATION = 1001;
35			public static final int GOTSTATIONLIST = 1002;
36			public static final int NOPROVIDER = 1003;
37			public static final int LOCATIONFIXTIMEOUT = 1004;
38	torben	368
39	torben	381	public static final int OPTIONS_RESCAN = 2001;
40			public static final int OPTIONS_NAMESEARCH = 2002;
41			public static final int OPTIONS_MAP = 2003;
42			public static final int OPTIONS_ABOUT = 2004;
43	torben	336
44	torben	237
45	torben	381	public static final int DLG_PROGRESS = 3001;
46			public static final int DLG_STATIONNAME = 3002;
47	torben	237
48			/** Called when the activity is first created. */
49	torben	336	String dialogMessage = "";
50	torben	237	ProgressDialog dialog;
51	torben	319	LocationLookup locator = null;
52	torben	336	LocatorTask locatorTask;
53	torben	381	StationsFetchedHandler stationsFetched = new StationsFetchedHandler();
54	torben	237
55	torben	374	GeoPair location = new GeoPair();
56
57	torben	258	boolean isRunning = false;
58			List<StationBean> stations = new ArrayList<StationBean>();
59
60	torben	319	StationProvider stationProvider = ProviderFactory.getStationProvider();
61	torben	381
62			StationListAdapter adapter = null;
63	torben	258
64	torben	381	static enum LookupMethod {
65			ByLocation,
66			ByName,
67			MethodNone
68			}
69	torben	319
70	torben	381	///////////////////////////////////////////////////////////////////////////////////////////
71			//Activity call backs
72
73	torben	258	@SuppressWarnings("unchecked")
74	torben	237	@Override
75			public void onCreate(Bundle savedInstanceState) {
76			super.onCreate(savedInstanceState);
77			setContentView(R.layout.main);
78
79	torben	241
80	torben	237	adapter = new StationListAdapter(this);
81			setListAdapter(adapter);
82
83	torben	319	locator = new LocationLookup(this, stationsFetched);
84	torben	258	if (savedInstanceState == null) {
85			startLookup();
86			} else {
87			stations = (ArrayList<StationBean>) savedInstanceState.getSerializable("stations");
88	torben	260	adapter.setStations(stations);
89	torben	374	location = (GeoPair) savedInstanceState.getSerializable("location");
90	torben	258	}
91	torben	237	}
92	torben	371
93
94	torben	243	@Override
95			public void onSaveInstanceState(Bundle outState)
96			{
97	torben	258	if (dialog != null && dialog.isShowing())
98	torben	243	dialog.dismiss();
99	torben	258	outState.putSerializable("stations", (ArrayList<StationBean>) stations);
100	torben	374	outState.putSerializable("location", location);
101	torben	243	}
102	torben	237
103	torben	243
104	torben	237
105			@Override
106	torben	368	public boolean onCreateOptionsMenu(Menu menu) {
107	torben	419	MenuItem item;
108
109			item = menu.add(0, OPTIONS_RESCAN, 0, "Find nearest stations");
110			item.setIcon(android.R.drawable.ic_menu_mylocation);
111
112			item = menu.add(0, OPTIONS_NAMESEARCH, 0, "Search for station");
113			item.setIcon(android.R.drawable.ic_menu_search);
114
115			item = menu.add(0, OPTIONS_MAP, 0, "Show station map");
116			item.setIcon(android.R.drawable.ic_menu_mapmode);
117
118			item = menu.add(0, OPTIONS_ABOUT, 0, "About");
119			item.setIcon(android.R.drawable.ic_menu_info_details);
120	torben	368	return true;
121			}
122
123			@Override
124			public boolean onOptionsItemSelected(MenuItem item) {
125	torben	381	boolean retval = true;
126
127	torben	368
128			switch (item.getItemId()) {
129	torben	381	case OPTIONS_RESCAN:
130			startLookup();
131			break;
132			case OPTIONS_NAMESEARCH:
133			showDialog(DLG_STATIONNAME);
134			break;
135	torben	368	case OPTIONS_MAP:
136
137			Intent intent = new Intent(this,StationMapView.class);
138	torben	374	intent.putExtra("userlocation", location );
139	torben	368
140			ArrayList<GeoPair> stationPoints = new ArrayList<GeoPair>();
141			for (StationBean st : stations ) {
142	torben	369	stationPoints.add( new GeoPair(st.getLatitude(), st.getLongitude(), st.getName()) );
143	torben	368	}
144
145			intent.putExtra("stations", stationPoints);
146
147			startActivity(intent);
148			break;
149	torben	371	case OPTIONS_ABOUT:
150			String ver = this.getResources().getString(R.string.app_version);
151
152	torben	401	Location loc = locator.getLocation();
153	torben	371	StringBuffer message = new StringBuffer();
154			message.append("TrainInfo DK v").append(ver).append("\n");
155			message.append("By Torben Nielsen\n");
156	torben	401	message.append("\n");
157			message.append("Location info:\n");
158			message.append("-Obtained by: ").append(loc != null ? loc.getProvider() : "-").append("\n");
159			message.append("-Accuracy: ").append(loc != null ? (int)loc.getAccuracy() : "-").append("m\n");
160	torben	371
161			MessageBox.showMessage(this, message.toString());
162			break;
163	torben	368	default:
164			retval = super.onOptionsItemSelected(item);
165			}
166
167			return retval;
168			}
169
170			@Override
171	torben	237	protected Dialog onCreateDialog(int id) {
172			switch (id) {
173			case DLG_PROGRESS:
174			ProgressDialog dlg = new ProgressDialog(this);
175			dlg.setMessage("Wait for location fix");
176			dlg.setCancelable(false);
177	torben	336	return dlg;
178	torben	381	case DLG_STATIONNAME:
179			LayoutInflater factory = LayoutInflater.from(this);
180			final View rootView = factory.inflate(R.layout.textinput, null);
181
182
183			AlertDialog.Builder builder = new AlertDialog.Builder(this);
184
185			builder.setTitle("Station search");
186			builder.setView(rootView);
187			builder.setCancelable(true);
188			builder.setPositiveButton("Search", new DialogInterface.OnClickListener() {
189			public void onClick(DialogInterface dialog, int which) {
190			EditText et = (EditText) rootView.findViewById(R.id.EditText);
191			dialog.dismiss();
192			if (et.getText().toString().length() >= 2) {
193			startNameSearch(et.getText().toString());
194			} else {
195	torben	382	MessageBox.showMessage(StationList.this, "Two characters minimum" );
196	torben	381	}
197			}
198			});
199			builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
200			public void onClick(DialogInterface dialog, int which) {
201			dialog.dismiss();
202			}
203			});
204			return builder.create();
205
206	torben	237	default:
207			return super.onCreateDialog(id);
208			}
209
210			}
211
212
213			@Override
214			protected void onPrepareDialog(int id, Dialog dialog) {
215			super.onPrepareDialog(id, dialog);
216			switch (id) {
217			case DLG_PROGRESS:
218			this.dialog = (ProgressDialog) dialog;
219	torben	336	if (!dialogMessage.equals("")) {
220			this.dialog.setMessage(dialogMessage);
221			dialogMessage = "";
222			}
223	torben	237	break;
224			}
225			}
226	torben	381
227			@Override
228			protected void onListItemClick(ListView l, View v, int position, long id) {
229			super.onListItemClick(l, v, position, id);
230
231			StationBean station = stations.get(position);
232	torben	237
233	torben	381	double latitude = station.getLatitude();
234			double longitude = station.getLongitude();
235
236
237
238			Intent intent = new Intent(this, DepartureList.class);
239			intent.putExtra("name", station.getName());
240			intent.putExtra("distance", station.getDistance());
241			intent.putExtra("latitude", latitude);
242			intent.putExtra("longitude", longitude);
243			intent.putExtra("stationid", station.getId());
244			intent.putExtra("address", station.getAddress());
245			startActivity(intent);
246			}
247
248			/////////////////////////////////////////////////////////////
249			//
250
251	torben	237	public void startLookup() {
252			isRunning = true;
253	torben	381	dialogMessage = "Wait for location fix";
254	torben	237	showDialog(DLG_PROGRESS);
255
256			locator.locateStations();
257	torben	336	stationsFetched.sendEmptyMessageDelayed(LOCATIONFIXTIMEOUT, 20000);
258	torben	237	}
259	torben	381
260			void startNameSearch(String name) {
261			dialogMessage = "Finding stations by name";
262			showDialog(DLG_PROGRESS);
263	torben	237
264	torben	381	locatorTask = new LocatorTask();
265			locatorTask.searchByName(name, locator.getLocation());
266			locatorTask.execute();
267
268			}
269	torben	237
270	torben	381
271
272			void startLocatorTask()
273			{
274			dialogMessage = "Finding nearby stations";
275			showDialog(DLG_PROGRESS);
276
277			locatorTask = new LocatorTask();
278			locatorTask.searchByLocation( locator.getLocation() );
279			locatorTask.execute();
280			}
281
282
283			String lookupAddress(double latitude, double longitude) {
284
285			Geocoder coder = new Geocoder(this, new Locale("da"));
286			StringBuilder sb = new StringBuilder();
287			Log.i("lookupaddr", "" + latitude + "/" + longitude);
288			try {
289			List<Address> addressList = coder.getFromLocation(latitude, longitude, 1);
290			Address addr = addressList.get(0);
291
292
293			int max = addr.getMaxAddressLineIndex();
294			for (int i=0; i<max; i++) {
295			if (i>0)
296			sb.append(", ");
297
298			sb.append(addr.getAddressLine(i));
299			}
300
301
302			} catch (Exception e) {
303			Log.e("DepartureList", "geocoder failed", e);
304			}
305
306			return sb.toString();
307			}
308
309
310			////////////////////////////////////////////////////////////////////////////
311			// Inner classes
312
313			class StationsFetchedHandler extends Handler {
314	torben	237	@Override
315			public void handleMessage(Message msg) {
316	torben	336
317	torben	237	switch (msg.what) {
318			case GOTLOCATION:
319	torben	336	dismissDialog(DLG_PROGRESS);
320
321			startLocatorTask();
322	torben	374	location = GeoPair.fromLocation( locator.getLocation() );
323	torben	336
324	torben	237	break;
325	torben	319
326	torben	237	case NOPROVIDER:
327	torben	336	dismissDialog(DLG_PROGRESS);
328			MessageBox.showMessage(StationList.this,"No location provider enabled. Plase enable gps.");
329	torben	237	break;
330	torben	336	case LOCATIONFIXTIMEOUT:
331	torben	237	if (isRunning) {
332	torben	336	locator.stopSearch();
333	torben	285	if (locator.hasLocation()) {
334	torben	336	stationsFetched.sendEmptyMessage( GOTLOCATION );
335			} else {
336			dismissDialog(DLG_PROGRESS);
337
338			AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);
339			builder.setMessage("GPS fix timed out");
340			builder.setCancelable(true);
341			builder.setPositiveButton("Retry", new DialogInterface.OnClickListener() {
342			public void onClick(DialogInterface dialog, int id) {
343			dialog.dismiss();
344			startLookup();
345
346			}
347			});
348			builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
349			public void onClick(DialogInterface dialog, int id) {
350			dialog.dismiss();
351			}
352			});
353			builder.show();
354
355	torben	285	}
356	torben	237	}
357			break;
358			}
359			isRunning = false;
360			}
361			};
362	torben	381
363	torben	237
364	torben	381	class LocatorTask extends AsyncTask<Void,Void,Void> {
365	torben	336
366	torben	381	LookupMethod method = LookupMethod.MethodNone;
367			boolean success;
368			String name;
369			Location loc;
370	torben	237
371	torben	381	public void searchByName(String n, Location l) {
372	torben	317
373	torben	381	method = LookupMethod.ByName;
374			loc = l;
375			name = n;
376	torben	317	}
377
378	torben	381	public void searchByLocation(Location l) {
379			method = LookupMethod.ByLocation;
380			loc = l;
381			}
382
383	torben	241	@Override
384			protected void onPreExecute() {
385	torben	258
386	torben	381	if (method.equals(LookupMethod.MethodNone))
387			throw new RuntimeException("Method not set");
388	torben	241	super.onPreExecute();
389			}
390
391			@Override
392			protected Void doInBackground(Void... params) {
393	torben	381
394			if (method.equals(LookupMethod.ByLocation))
395			success = stationProvider.lookupStations(loc);
396	torben	258
397	torben	381	if (method.equals(LookupMethod.ByName))
398			success = stationProvider.lookupStations(name);
399	torben	319
400	torben	381	Location dummy = new Location("gps");
401	torben	319	List<StationBean> stations = stationProvider.getStations();
402	torben	381
403			for (StationBean station : stations) {
404	torben	317	String addr = lookupAddress(station.getLatitude(), station.getLongitude());
405			station.setAddress(addr);
406	torben	381
407			if (method.equals(LookupMethod.ByName) ) {
408			dummy.setLatitude(station.getLatitude());
409			dummy.setLongitude(station.getLongitude());
410			station.setDistance( (int)loc.distanceTo(dummy) );
411			}
412			}
413	torben	317
414	torben	241	return null;
415			}
416
417			@Override
418			protected void onPostExecute(Void result) {
419			super.onPostExecute(result);
420	torben	319	dialog.dismiss();
421
422			if (success) {
423			if (stationProvider.getStations().size() == 0)
424	torben	336	MessageBox.showMessage(StationList.this, "No stations found!"); // this should not be possible !?!
425	torben	319	stations = stationProvider.getStations();
426			adapter.setStations( stations );
427
428			} else { //communication or parse errors
429	torben	336	AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);
430			builder.setMessage("Error on finding nearby stations");
431			builder.setCancelable(true);
432			builder.setPositiveButton("Retry", new DialogInterface.OnClickListener() {
433			public void onClick(DialogInterface dialog, int id) {
434			dialog.dismiss();
435
436			stationsFetched.post( new Runnable() {
437			@Override
438			public void run() {
439			startLocatorTask();
440			}
441			});
442			}
443			});
444			builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
445			public void onClick(DialogInterface dialog, int id) {
446			dialog.dismiss();
447			}
448			});
449			builder.show();
450	torben	319	}
451	torben	241	}
452			}
453	torben	237	}