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.View;
import android.widget.ListView;
import dk.thoerup.traininfo.provider.ProviderFactory;
import dk.thoerup.traininfo.provider.StationProvider;
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 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);
                
                LocationLookup.removeMockLocation(this);
                //LocationLookup.injectMockLocation(this);
                
                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
        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	237	import android.view.View;
22			import android.widget.ListView;
23	torben	319	import dk.thoerup.traininfo.provider.ProviderFactory;
24			import dk.thoerup.traininfo.provider.StationProvider;
25	torben	245	import dk.thoerup.traininfo.util.MessageBox;
26	torben	237
27	torben	336	public class StationList extends ListActivity {
28			public static final int GOTLOCATION = 1001;
29			public static final int GOTSTATIONLIST = 1002;
30			public static final int NOPROVIDER = 1003;
31			public static final int LOCATIONFIXTIMEOUT = 1004;
32
33	torben	237
34	torben	336	public static final int DLG_PROGRESS = 1001;
35	torben	237
36			/** Called when the activity is first created. */
37	torben	336	String dialogMessage = "";
38	torben	237	ProgressDialog dialog;
39	torben	319	LocationLookup locator = null;
40	torben	336	LocatorTask locatorTask;
41	torben	237
42	torben	258	boolean isRunning = false;
43			List<StationBean> stations = new ArrayList<StationBean>();
44
45	torben	319	StationProvider stationProvider = ProviderFactory.getStationProvider();
46	torben	258
47	torben	319
48	torben	237	StationListAdapter adapter = null;
49	torben	258	@SuppressWarnings("unchecked")
50	torben	237	@Override
51			public void onCreate(Bundle savedInstanceState) {
52			super.onCreate(savedInstanceState);
53			setContentView(R.layout.main);
54
55	torben	333	LocationLookup.removeMockLocation(this);
56			//LocationLookup.injectMockLocation(this);
57	torben	241
58	torben	237	adapter = new StationListAdapter(this);
59			setListAdapter(adapter);
60
61	torben	319	locator = new LocationLookup(this, stationsFetched);
62	torben	258	if (savedInstanceState == null) {
63			startLookup();
64			} else {
65			stations = (ArrayList<StationBean>) savedInstanceState.getSerializable("stations");
66	torben	260	adapter.setStations(stations);
67	torben	258	}
68	torben	237	}
69
70	torben	243	@Override
71			public void onSaveInstanceState(Bundle outState)
72			{
73	torben	258	if (dialog != null && dialog.isShowing())
74	torben	243	dialog.dismiss();
75	torben	258	outState.putSerializable("stations", (ArrayList<StationBean>) stations);
76	torben	243	}
77	torben	237
78	torben	243
79	torben	237
80			@Override
81			protected Dialog onCreateDialog(int id) {
82			switch (id) {
83			case DLG_PROGRESS:
84			ProgressDialog dlg = new ProgressDialog(this);
85			dlg.setMessage("Wait for location fix");
86			dlg.setCancelable(false);
87	torben	336	return dlg;
88	torben	237	default:
89			return super.onCreateDialog(id);
90			}
91
92			}
93
94
95
96			@Override
97			protected void onPrepareDialog(int id, Dialog dialog) {
98			super.onPrepareDialog(id, dialog);
99			switch (id) {
100			case DLG_PROGRESS:
101			this.dialog = (ProgressDialog) dialog;
102	torben	336	if (!dialogMessage.equals("")) {
103			this.dialog.setMessage(dialogMessage);
104			dialogMessage = "";
105			}
106	torben	237	break;
107			}
108			}
109
110			public void startLookup() {
111			isRunning = true;
112			showDialog(DLG_PROGRESS);
113
114			locator.locateStations();
115	torben	336	stationsFetched.sendEmptyMessageDelayed(LOCATIONFIXTIMEOUT, 20000);
116	torben	237	}
117
118
119			Handler stationsFetched = new Handler() {
120			@Override
121			public void handleMessage(Message msg) {
122	torben	336
123	torben	237	switch (msg.what) {
124			case GOTLOCATION:
125	torben	336	dismissDialog(DLG_PROGRESS);
126
127			startLocatorTask();
128
129	torben	237	break;
130	torben	319
131	torben	237	case NOPROVIDER:
132	torben	336	dismissDialog(DLG_PROGRESS);
133			MessageBox.showMessage(StationList.this,"No location provider enabled. Plase enable gps.");
134	torben	237	break;
135	torben	336	case LOCATIONFIXTIMEOUT:
136	torben	237	if (isRunning) {
137	torben	336	locator.stopSearch();
138	torben	285	if (locator.hasLocation()) {
139	torben	336	stationsFetched.sendEmptyMessage( GOTLOCATION );
140			} else {
141			dismissDialog(DLG_PROGRESS);
142
143			AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);
144			builder.setMessage("GPS fix timed out");
145			builder.setCancelable(true);
146			builder.setPositiveButton("Retry", new DialogInterface.OnClickListener() {
147			public void onClick(DialogInterface dialog, int id) {
148			dialog.dismiss();
149			startLookup();
150
151			}
152			});
153			builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
154			public void onClick(DialogInterface dialog, int id) {
155			dialog.dismiss();
156			}
157			});
158			builder.show();
159
160	torben	285	}
161	torben	237	}
162			break;
163			}
164			isRunning = false;
165			}
166			};
167
168	torben	336	void startLocatorTask()
169			{
170			dialogMessage = "Finding nearby stations";
171			showDialog(DLG_PROGRESS);
172
173			locatorTask = new LocatorTask();
174			locatorTask.execute();
175			}
176	torben	237
177			@Override
178			protected void onListItemClick(ListView l, View v, int position, long id) {
179			super.onListItemClick(l, v, position, id);
180	torben	294
181	torben	258	StationBean station = stations.get(position);
182	torben	294
183			double latitude = station.getLatitude();
184			double longitude = station.getLongitude();
185
186
187	torben	237
188			Intent intent = new Intent(this, DepartureList.class);
189			intent.putExtra("name", station.getName());
190			intent.putExtra("distance", station.getDistance());
191	torben	294	intent.putExtra("latitude", latitude);
192			intent.putExtra("longitude", longitude);
193	torben	310	intent.putExtra("stationid", station.getId());
194	torben	317	intent.putExtra("address", station.getAddress());
195	torben	237	startActivity(intent);
196			}
197
198	torben	317	String lookupAddress(double latitude, double longitude) {
199
200			Geocoder coder = new Geocoder(this, new Locale("da"));
201			StringBuilder sb = new StringBuilder();
202			Log.i("lookupaddr", "" + latitude + "/" + longitude);
203			try {
204			List<Address> addressList = coder.getFromLocation(latitude, longitude, 1);
205			Address addr = addressList.get(0);
206
207
208			int max = addr.getMaxAddressLineIndex();
209			for (int i=0; i<max; i++) {
210			if (i>0)
211			sb.append(", ");
212
213			sb.append(addr.getAddressLine(i));
214			}
215
216
217			} catch (Exception e) {
218			Log.e("DepartureList", "geocoder failed", e);
219			}
220
221			return sb.toString();
222			}
223	torben	241
224			class LocatorTask extends AsyncTask<Void,Void,Void> {
225	torben	319	boolean success;
226	torben	241	@Override
227			protected void onPreExecute() {
228	torben	258
229	torben	241	super.onPreExecute();
230			}
231
232			@Override
233			protected Void doInBackground(Void... params) {
234	torben	319	Location loc = locator.getLocation();
235			success = stationProvider.lookupStations(loc);
236	torben	258
237	torben	319
238			List<StationBean> stations = stationProvider.getStations();
239	torben	317	for (StationBean station : stations) {
240			String addr = lookupAddress(station.getLatitude(), station.getLongitude());
241			station.setAddress(addr);
242			}
243
244	torben	241	return null;
245			}
246
247			@Override
248			protected void onPostExecute(Void result) {
249			super.onPostExecute(result);
250	torben	319	dialog.dismiss();
251
252			if (success) {
253			if (stationProvider.getStations().size() == 0)
254	torben	336	MessageBox.showMessage(StationList.this, "No stations found!"); // this should not be possible !?!
255	torben	319	stations = stationProvider.getStations();
256			adapter.setStations( stations );
257
258			} else { //communication or parse errors
259	torben	336	AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this);
260			builder.setMessage("Error on finding nearby stations");
261			builder.setCancelable(true);
262			builder.setPositiveButton("Retry", new DialogInterface.OnClickListener() {
263			public void onClick(DialogInterface dialog, int id) {
264			dialog.dismiss();
265
266			stationsFetched.post( new Runnable() {
267			@Override
268			public void run() {
269			startLocatorTask();
270			}
271			});
272			}
273			});
274			builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
275			public void onClick(DialogInterface dialog, int id) {
276			dialog.dismiss();
277			}
278			});
279			builder.show();
280	torben	319	}
281	torben	241	}
282			}
283	torben	237	}