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.Menu;
import android.view.MenuItem;
import android.view.View;
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_MAP = 2001;
        public static final int OPTIONS_ABOUT = 2002;

        
        public static final int DLG_PROGRESS = 1001;
        
        /** Called when the activity is first created. */
        String dialogMessage = "";
        ProgressDialog dialog;
        LocationLookup locator = null;
        LocatorTask locatorTask;
        
        boolean isRunning = false;
        List<StationBean> stations = new ArrayList<StationBean>();
        
        StationProvider stationProvider = ProviderFactory.getStationProvider();
        
        
        StationListAdapter adapter = null;
        @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);
                }
        }


    @Override 
    public void onSaveInstanceState(Bundle outState) 
    {
        if (dialog != null && dialog.isShowing())
                dialog.dismiss();
        outState.putSerializable("stations", (ArrayList<StationBean>) stations);
    }
        
        
        @Override
        public boolean onCreateOptionsMenu(Menu menu) {
                menu.add(0, OPTIONS_MAP, 0, "Show station map");
                menu.add(0, OPTIONS_ABOUT, 0, "About");
                
                return true;
        }

        @Override
        public boolean onOptionsItemSelected(MenuItem item) {
                boolean retval;
                
                switch (item.getItemId()) {
                case OPTIONS_MAP:
                        
                        Intent intent = new Intent(this,StationMapView.class);
                        intent.putExtra("userlocation", GeoPair.fromLocation(locator.getLocation()) );
                        
                        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);
                        retval = true;
                        break;
                case OPTIONS_ABOUT:
                        String ver = this.getResources().getString(R.string.app_version);
                        
                        StringBuffer message = new StringBuffer();
                        message.append("TrainInfo DK v").append(ver).append("\n");
                        message.append("By Torben Nielsen\n");

                        MessageBox.showMessage(this, message.toString());
                        retval = true;
                        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;                     
                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;
                }
        }

        public void startLookup() {
                isRunning = true;
                showDialog(DLG_PROGRESS);
                
                locator.locateStations();
                stationsFetched.sendEmptyMessageDelayed(LOCATIONFIXTIMEOUT, 20000);
        }


        Handler stationsFetched = new Handler() {
                @Override
                public void handleMessage(Message msg) {

                        switch (msg.what) {
                        case GOTLOCATION:
                                dismissDialog(DLG_PROGRESS);
                                
                                startLocatorTask();
                                
                                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;
                }
        };
        
        void startLocatorTask()
        {
                dialogMessage = "Finding nearby stations"; 
                showDialog(DLG_PROGRESS);
                
                locatorTask = new LocatorTask();
                locatorTask.execute();  
        }
        
        @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);
        }

        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();
        }
        
        class LocatorTask extends AsyncTask<Void,Void,Void> {
                boolean success;
                @Override
                protected void onPreExecute() {

                        super.onPreExecute();
                }
                
                @Override
                protected Void doInBackground(Void... params) {
                        Location loc = locator.getLocation();
                        success = stationProvider.lookupStations(loc);
                        
                        
                        List<StationBean> stations = stationProvider.getStations();
                        for (StationBean station : stations) {
                                String addr = lookupAddress(station.getLatitude(), station.getLongitude());
                                station.setAddress(addr);
                        }
                        
                        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	368	import android.view.Menu;
22			import android.view.MenuItem;
23	torben	237	import android.view.View;
24			import android.widget.ListView;
25	torben	368
26
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			public static final int OPTIONS_MAP = 2001;
40			public static final int OPTIONS_ABOUT = 2002;
41	torben	336
42	torben	237
43	torben	336	public static final int DLG_PROGRESS = 1001;
44	torben	237
45			/** Called when the activity is first created. */
46	torben	336	String dialogMessage = "";
47	torben	237	ProgressDialog dialog;
48	torben	319	LocationLookup locator = null;
49	torben	336	LocatorTask locatorTask;
50	torben	237
51	torben	258	boolean isRunning = false;
52			List<StationBean> stations = new ArrayList<StationBean>();
53
54	torben	319	StationProvider stationProvider = ProviderFactory.getStationProvider();
55	torben	258
56	torben	319
57	torben	237	StationListAdapter adapter = null;
58	torben	258	@SuppressWarnings("unchecked")
59	torben	237	@Override
60			public void onCreate(Bundle savedInstanceState) {
61			super.onCreate(savedInstanceState);
62			setContentView(R.layout.main);
63
64	torben	241
65	torben	237	adapter = new StationListAdapter(this);
66			setListAdapter(adapter);
67
68	torben	319	locator = new LocationLookup(this, stationsFetched);
69	torben	258	if (savedInstanceState == null) {
70			startLookup();
71			} else {
72			stations = (ArrayList<StationBean>) savedInstanceState.getSerializable("stations");
73	torben	260	adapter.setStations(stations);
74	torben	258	}
75	torben	237	}
76	torben	371
77
78	torben	243	@Override
79			public void onSaveInstanceState(Bundle outState)
80			{
81	torben	258	if (dialog != null && dialog.isShowing())
82	torben	243	dialog.dismiss();
83	torben	258	outState.putSerializable("stations", (ArrayList<StationBean>) stations);
84	torben	243	}
85	torben	237
86	torben	243
87	torben	237
88			@Override
89	torben	368	public boolean onCreateOptionsMenu(Menu menu) {
90			menu.add(0, OPTIONS_MAP, 0, "Show station map");
91			menu.add(0, OPTIONS_ABOUT, 0, "About");
92
93			return true;
94			}
95
96			@Override
97			public boolean onOptionsItemSelected(MenuItem item) {
98			boolean retval;
99
100			switch (item.getItemId()) {
101			case OPTIONS_MAP:
102
103			Intent intent = new Intent(this,StationMapView.class);
104			intent.putExtra("userlocation", GeoPair.fromLocation(locator.getLocation()) );
105
106			ArrayList<GeoPair> stationPoints = new ArrayList<GeoPair>();
107			for (StationBean st : stations ) {
108	torben	369	stationPoints.add( new GeoPair(st.getLatitude(), st.getLongitude(), st.getName()) );
109	torben	368	}
110
111			intent.putExtra("stations", stationPoints);
112
113			startActivity(intent);
114			retval = true;
115			break;
116	torben	371	case OPTIONS_ABOUT:
117			String ver = this.getResources().getString(R.string.app_version);
118
119			StringBuffer message = new StringBuffer();
120			message.append("TrainInfo DK v").append(ver).append("\n");
121			message.append("By Torben Nielsen\n");
122
123			MessageBox.showMessage(this, message.toString());
124			retval = true;
125			break;
126	torben	368	default:
127			retval = super.onOptionsItemSelected(item);
128			}
129
130			return retval;
131			}
132
133			@Override
134	torben	237	protected Dialog onCreateDialog(int id) {
135			switch (id) {
136			case DLG_PROGRESS:
137			ProgressDialog dlg = new ProgressDialog(this);
138			dlg.setMessage("Wait for location fix");
139			dlg.setCancelable(false);
140	torben	336	return dlg;
141	torben	237	default:
142			return super.onCreateDialog(id);
143			}
144
145			}
146
147
148
149			@Override
150			protected void onPrepareDialog(int id, Dialog dialog) {
151			super.onPrepareDialog(id, dialog);
152			switch (id) {
153			case DLG_PROGRESS:
154			this.dialog = (ProgressDialog) dialog;
155	torben	336	if (!dialogMessage.equals("")) {
156			this.dialog.setMessage(dialogMessage);
157			dialogMessage = "";
158			}
159	torben	237	break;
160			}
161			}
162
163			public void startLookup() {
164			isRunning = true;
165			showDialog(DLG_PROGRESS);
166
167			locator.locateStations();
168	torben	336	stationsFetched.sendEmptyMessageDelayed(LOCATIONFIXTIMEOUT, 20000);
169	torben	237	}
170
171
172			Handler stationsFetched = new Handler() {
173			@Override
174			public void handleMessage(Message msg) {
175	torben	336
176	torben	237	switch (msg.what) {
177			case GOTLOCATION:
178	torben	336	dismissDialog(DLG_PROGRESS);
179
180			startLocatorTask();
181
182	torben	237	break;
183	torben	319
184	torben	237	case NOPROVIDER:
185	torben	336	dismissDialog(DLG_PROGRESS);
186			MessageBox.showMessage(StationList.this,"No location provider enabled. Plase enable gps.");
187	torben	237	break;
188	torben	336	case LOCATIONFIXTIMEOUT:
189	torben	237	if (isRunning) {
190	torben	336	locator.stopSearch();
191	torben	285	if (locator.hasLocation()) {
192	torben	336	stationsFetched.sendEmptyMessage( GOTLOCATION );
193			} else {
194			dismissDialog(DLG_PROGRESS);
195
196			AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);
197			builder.setMessage("GPS fix timed out");
198			builder.setCancelable(true);
199			builder.setPositiveButton("Retry", new DialogInterface.OnClickListener() {
200			public void onClick(DialogInterface dialog, int id) {
201			dialog.dismiss();
202			startLookup();
203
204			}
205			});
206			builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
207			public void onClick(DialogInterface dialog, int id) {
208			dialog.dismiss();
209			}
210			});
211			builder.show();
212
213	torben	285	}
214	torben	237	}
215			break;
216			}
217			isRunning = false;
218			}
219			};
220
221	torben	336	void startLocatorTask()
222			{
223			dialogMessage = "Finding nearby stations";
224			showDialog(DLG_PROGRESS);
225
226			locatorTask = new LocatorTask();
227			locatorTask.execute();
228			}
229	torben	237
230			@Override
231			protected void onListItemClick(ListView l, View v, int position, long id) {
232			super.onListItemClick(l, v, position, id);
233	torben	294
234	torben	258	StationBean station = stations.get(position);
235	torben	294
236			double latitude = station.getLatitude();
237			double longitude = station.getLongitude();
238
239
240	torben	237
241			Intent intent = new Intent(this, DepartureList.class);
242			intent.putExtra("name", station.getName());
243			intent.putExtra("distance", station.getDistance());
244	torben	294	intent.putExtra("latitude", latitude);
245			intent.putExtra("longitude", longitude);
246	torben	310	intent.putExtra("stationid", station.getId());
247	torben	317	intent.putExtra("address", station.getAddress());
248	torben	237	startActivity(intent);
249			}
250
251	torben	317	String lookupAddress(double latitude, double longitude) {
252
253			Geocoder coder = new Geocoder(this, new Locale("da"));
254			StringBuilder sb = new StringBuilder();
255			Log.i("lookupaddr", "" + latitude + "/" + longitude);
256			try {
257			List<Address> addressList = coder.getFromLocation(latitude, longitude, 1);
258			Address addr = addressList.get(0);
259
260
261			int max = addr.getMaxAddressLineIndex();
262			for (int i=0; i<max; i++) {
263			if (i>0)
264			sb.append(", ");
265
266			sb.append(addr.getAddressLine(i));
267			}
268
269
270			} catch (Exception e) {
271			Log.e("DepartureList", "geocoder failed", e);
272			}
273
274			return sb.toString();
275			}
276	torben	241
277			class LocatorTask extends AsyncTask<Void,Void,Void> {
278	torben	319	boolean success;
279	torben	241	@Override
280			protected void onPreExecute() {
281	torben	258
282	torben	241	super.onPreExecute();
283			}
284
285			@Override
286			protected Void doInBackground(Void... params) {
287	torben	319	Location loc = locator.getLocation();
288			success = stationProvider.lookupStations(loc);
289	torben	258
290	torben	319
291			List<StationBean> stations = stationProvider.getStations();
292	torben	317	for (StationBean station : stations) {
293			String addr = lookupAddress(station.getLatitude(), station.getLongitude());
294			station.setAddress(addr);
295			}
296
297	torben	241	return null;
298			}
299
300			@Override
301			protected void onPostExecute(Void result) {
302			super.onPostExecute(result);
303	torben	319	dialog.dismiss();
304
305			if (success) {
306			if (stationProvider.getStations().size() == 0)
307	torben	336	MessageBox.showMessage(StationList.this, "No stations found!"); // this should not be possible !?!
308	torben	319	stations = stationProvider.getStations();
309			adapter.setStations( stations );
310
311			} else { //communication or parse errors
312	torben	336	AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);
313			builder.setMessage("Error on finding nearby stations");
314			builder.setCancelable(true);
315			builder.setPositiveButton("Retry", new DialogInterface.OnClickListener() {
316			public void onClick(DialogInterface dialog, int id) {
317			dialog.dismiss();
318
319			stationsFetched.post( new Runnable() {
320			@Override
321			public void run() {
322			startLocatorTask();
323			}
324			});
325			}
326			});
327			builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
328			public void onClick(DialogInterface dialog, int id) {
329			dialog.dismiss();
330			}
331			});
332			builder.show();
333	torben	319	}
334	torben	241	}
335			}
336	torben	237	}