thoerup/traininfo/StationList.java

package dk.thoerup.traininfo;

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

import android.app.Dialog;
import android.app.ListActivity;
import android.app.ProgressDialog;
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 TrainInfoList extends ListActivity  {
        public static final int GOTLOCATION = 1;
        public static final int GOTSTATIONLIST = 2;
        public static final int NOPROVIDER = 3;
        public static final int FIXTIMEOUT = 4;
        public static final int LOOKUPSTATIONFAILED = 5;
        
        public static final int DLG_PROGRESS = 1;
        
        /** Called when the activity is first created. */
        ProgressDialog dialog;
        LocationLookup locator = null;
        LocatorTask locatorTask = new 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;
                        break;
                }
        }

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


        Handler stationsFetched = new Handler() {
                @Override
                public void handleMessage(Message msg) {
                        switch (msg.what) {
                        case GOTLOCATION:
                                dialog.setMessage("Finding nearby stations");
                                locatorTask.execute();
                                break;

                        case NOPROVIDER:
                                dialog.dismiss();
                                MessageBox.showMessage(TrainInfoList.this,"No location provider enabled. Plase enable gps.");
                                break;
                        case FIXTIMEOUT:
                                dialog.dismiss();
                                if (isRunning) {
                                        locator.abortLocationListener();
                                        if (locator.hasLocation()) {
                                                msg.what = GOTLOCATION;
                                                handleMessage( msg ); // ToDo: ugly recursive call !!!
                                        } else {
                                                MessageBox.showMessage(TrainInfoList.this,"GPS fix timed out");
                                        }
                                }
                                break;
                        case LOOKUPSTATIONFAILED:
                                dialog.dismiss();
                                MessageBox.showMessage(TrainInfoList.this,"Error on finding nearby stations");
                                break;
                        }
                        isRunning = false;
                }
        };
        
        
        @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(TrainInfoList.this, "No stations found!"); // this should not be possible !?!
                                stations = stationProvider.getStations();
                                adapter.setStations( stations );                                
                                
                        } else { //communication or parse errors
                                MessageBox.showMessage(TrainInfoList.this, "Error finding stations!");
                        }
                }
        }
}
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	237	import android.app.Dialog;
8			import android.app.ListActivity;
9			import android.app.ProgressDialog;
10			import android.content.Intent;
11	torben	294	import android.location.Address;
12			import android.location.Geocoder;
13	torben	319	import android.location.Location;
14	torben	241	import android.os.AsyncTask;
15	torben	237	import android.os.Bundle;
16			import android.os.Handler;
17			import android.os.Message;
18	torben	294	import android.util.Log;
19	torben	237	import android.view.View;
20			import android.widget.ListView;
21	torben	319	import dk.thoerup.traininfo.provider.ProviderFactory;
22			import dk.thoerup.traininfo.provider.StationProvider;
23	torben	245	import dk.thoerup.traininfo.util.MessageBox;
24	torben	237
25			public class TrainInfoList extends ListActivity {
26			public static final int GOTLOCATION = 1;
27			public static final int GOTSTATIONLIST = 2;
28			public static final int NOPROVIDER = 3;
29			public static final int FIXTIMEOUT = 4;
30			public static final int LOOKUPSTATIONFAILED = 5;
31
32			public static final int DLG_PROGRESS = 1;
33
34			/** Called when the activity is first created. */
35			ProgressDialog dialog;
36	torben	319	LocationLookup locator = null;
37	torben	241	LocatorTask locatorTask = new LocatorTask();
38	torben	237
39	torben	258	boolean isRunning = false;
40			List<StationBean> stations = new ArrayList<StationBean>();
41
42	torben	319	StationProvider stationProvider = ProviderFactory.getStationProvider();
43	torben	258
44	torben	319
45	torben	237	StationListAdapter adapter = null;
46	torben	258	@SuppressWarnings("unchecked")
47	torben	237	@Override
48			public void onCreate(Bundle savedInstanceState) {
49			super.onCreate(savedInstanceState);
50			setContentView(R.layout.main);
51
52	torben	331	//LocationLookup.removeMockLocation(this);
53			LocationLookup.injectMockLocation(this);
54	torben	241
55	torben	237	adapter = new StationListAdapter(this);
56			setListAdapter(adapter);
57
58	torben	319	locator = new LocationLookup(this, stationsFetched);
59	torben	258	if (savedInstanceState == null) {
60			startLookup();
61			} else {
62			stations = (ArrayList<StationBean>) savedInstanceState.getSerializable("stations");
63	torben	260	adapter.setStations(stations);
64	torben	258	}
65	torben	237	}
66
67	torben	243	@Override
68			public void onSaveInstanceState(Bundle outState)
69			{
70	torben	258	if (dialog != null && dialog.isShowing())
71	torben	243	dialog.dismiss();
72	torben	258	outState.putSerializable("stations", (ArrayList<StationBean>) stations);
73	torben	243	}
74	torben	237
75	torben	243
76	torben	237
77			@Override
78			protected Dialog onCreateDialog(int id) {
79			switch (id) {
80			case DLG_PROGRESS:
81			ProgressDialog dlg = new ProgressDialog(this);
82			dlg.setMessage("Wait for location fix");
83			dlg.setCancelable(false);
84			return dlg;
85			default:
86			return super.onCreateDialog(id);
87			}
88
89			}
90
91
92
93			@Override
94			protected void onPrepareDialog(int id, Dialog dialog) {
95			super.onPrepareDialog(id, dialog);
96			switch (id) {
97			case DLG_PROGRESS:
98			this.dialog = (ProgressDialog) dialog;
99			break;
100			}
101			}
102
103			public void startLookup() {
104			isRunning = true;
105			showDialog(DLG_PROGRESS);
106
107			locator.locateStations();
108	torben	258	stationsFetched.sendEmptyMessageDelayed(FIXTIMEOUT, 20000);
109	torben	237	}
110
111
112			Handler stationsFetched = new Handler() {
113			@Override
114			public void handleMessage(Message msg) {
115			switch (msg.what) {
116			case GOTLOCATION:
117			dialog.setMessage("Finding nearby stations");
118	torben	241	locatorTask.execute();
119	torben	237	break;
120	torben	319
121	torben	237	case NOPROVIDER:
122			dialog.dismiss();
123	torben	245	MessageBox.showMessage(TrainInfoList.this,"No location provider enabled. Plase enable gps.");
124	torben	237	break;
125			case FIXTIMEOUT:
126			dialog.dismiss();
127			if (isRunning) {
128			locator.abortLocationListener();
129	torben	285	if (locator.hasLocation()) {
130			msg.what = GOTLOCATION;
131			handleMessage( msg ); // ToDo: ugly recursive call !!!
132			} else {
133			MessageBox.showMessage(TrainInfoList.this,"GPS fix timed out");
134			}
135	torben	237	}
136			break;
137			case LOOKUPSTATIONFAILED:
138			dialog.dismiss();
139	torben	245	MessageBox.showMessage(TrainInfoList.this,"Error on finding nearby stations");
140	torben	237	break;
141			}
142			isRunning = false;
143			}
144			};
145
146
147
148			@Override
149			protected void onListItemClick(ListView l, View v, int position, long id) {
150			super.onListItemClick(l, v, position, id);
151	torben	294
152	torben	258	StationBean station = stations.get(position);
153	torben	294
154			double latitude = station.getLatitude();
155			double longitude = station.getLongitude();
156
157
158	torben	237
159			Intent intent = new Intent(this, DepartureList.class);
160			intent.putExtra("name", station.getName());
161			intent.putExtra("distance", station.getDistance());
162	torben	294	intent.putExtra("latitude", latitude);
163			intent.putExtra("longitude", longitude);
164	torben	310	intent.putExtra("stationid", station.getId());
165	torben	317	intent.putExtra("address", station.getAddress());
166	torben	237	startActivity(intent);
167			}
168
169	torben	317	String lookupAddress(double latitude, double longitude) {
170
171			Geocoder coder = new Geocoder(this, new Locale("da"));
172			StringBuilder sb = new StringBuilder();
173			Log.i("lookupaddr", "" + latitude + "/" + longitude);
174			try {
175			List<Address> addressList = coder.getFromLocation(latitude, longitude, 1);
176			Address addr = addressList.get(0);
177
178
179			int max = addr.getMaxAddressLineIndex();
180			for (int i=0; i<max; i++) {
181			if (i>0)
182			sb.append(", ");
183
184			sb.append(addr.getAddressLine(i));
185			}
186
187
188			} catch (Exception e) {
189			Log.e("DepartureList", "geocoder failed", e);
190			}
191
192			return sb.toString();
193			}
194	torben	241
195			class LocatorTask extends AsyncTask<Void,Void,Void> {
196	torben	319	boolean success;
197	torben	241	@Override
198			protected void onPreExecute() {
199	torben	258
200	torben	241	super.onPreExecute();
201			}
202
203			@Override
204			protected Void doInBackground(Void... params) {
205	torben	319	Location loc = locator.getLocation();
206			success = stationProvider.lookupStations(loc);
207	torben	258
208	torben	319
209			List<StationBean> stations = stationProvider.getStations();
210	torben	317	for (StationBean station : stations) {
211			String addr = lookupAddress(station.getLatitude(), station.getLongitude());
212			station.setAddress(addr);
213			}
214
215	torben	241	return null;
216			}
217
218			@Override
219			protected void onPostExecute(Void result) {
220			super.onPostExecute(result);
221	torben	319	dialog.dismiss();
222
223			if (success) {
224			if (stationProvider.getStations().size() == 0)
225			MessageBox.showMessage(TrainInfoList.this, "No stations found!"); // this should not be possible !?!
226			stations = stationProvider.getStations();
227			adapter.setStations( stations );
228
229			} else { //communication or parse errors
230			MessageBox.showMessage(TrainInfoList.this, "Error finding stations!");
231			}
232	torben	241	}
233			}
234	torben	237	}