thoerup/traininfo/TrainInfoList.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.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.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;
        StationLocator locator = null;
        LocatorTask locatorTask = new LocatorTask();
        
        boolean isRunning = false;
        List<StationBean> stations = new ArrayList<StationBean>();
        
        
        StationListAdapter adapter = null;
        @SuppressWarnings("unchecked")
        @Override
        public void onCreate(Bundle savedInstanceState) {
                super.onCreate(savedInstanceState);
                setContentView(R.layout.main);
                
                //StationLocator.removeMockLocation(this);
                StationLocator.injectMockLocation(this);
                
                adapter = new StationListAdapter(this);
                setListAdapter(adapter);
                
                locator = new StationLocator(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 GOTSTATIONLIST:
                                dialog.dismiss();
                                if (locator.getStations().size() == 0)
                                        MessageBox.showMessage(TrainInfoList.this,"Error loading station list!");
                                stations = locator.getStations();
                                adapter.setStations( stations );
                                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();
                String addr = station.getAddress();

                if (addr == null || addr.trim().equals("") )
                        addr = lookupAddress(latitude, longitude);

                
                Intent intent = new Intent(this, DepartureList.class);
                intent.putExtra("name", station.getName());
                intent.putExtra("address", addr);
                intent.putExtra("distance", station.getDistance());
                intent.putExtra("latitude", latitude);
                intent.putExtra("longitude", longitude);
                intent.putExtra("code", station.getCode());
                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> {
                @Override
                protected void onPreExecute() {

                        super.onPreExecute();
                }
                
                @Override
                protected Void doInBackground(Void... params) {
                        locator.findNearestStations();
                        
                        return null;
                }

                @Override
                protected void onPostExecute(Void result) {
                        super.onPostExecute(result);

                }
        }
}
1	package dk.thoerup.traininfo;
2
3	import java.util.ArrayList;
4	import java.util.List;
5	import java.util.Locale;
6
7	import android.app.Dialog;
8	import android.app.ListActivity;
9	import android.app.ProgressDialog;
10	import android.content.Intent;
11	import android.location.Address;
12	import android.location.Geocoder;
13	import android.os.AsyncTask;
14	import android.os.Bundle;
15	import android.os.Handler;
16	import android.os.Message;
17	import android.util.Log;
18	import android.view.View;
19	import android.widget.ListView;
20	import dk.thoerup.traininfo.util.MessageBox;
21
22	public class TrainInfoList extends ListActivity {
23	public static final int GOTLOCATION = 1;
24	public static final int GOTSTATIONLIST = 2;
25	public static final int NOPROVIDER = 3;
26	public static final int FIXTIMEOUT = 4;
27	public static final int LOOKUPSTATIONFAILED = 5;
28
29	public static final int DLG_PROGRESS = 1;
30
31	/** Called when the activity is first created. */
32	ProgressDialog dialog;
33	StationLocator locator = null;
34	LocatorTask locatorTask = new LocatorTask();
35
36	boolean isRunning = false;
37	List<StationBean> stations = new ArrayList<StationBean>();
38
39
40	StationListAdapter adapter = null;
41	@SuppressWarnings("unchecked")
42	@Override
43	public void onCreate(Bundle savedInstanceState) {
44	super.onCreate(savedInstanceState);
45	setContentView(R.layout.main);
46
47	//StationLocator.removeMockLocation(this);
48	StationLocator.injectMockLocation(this);
49
50	adapter = new StationListAdapter(this);
51	setListAdapter(adapter);
52
53	locator = new StationLocator(this, stationsFetched);
54	if (savedInstanceState == null) {
55	startLookup();
56	} else {
57	stations = (ArrayList<StationBean>) savedInstanceState.getSerializable("stations");
58	adapter.setStations(stations);
59	}
60	}
61
62	@Override
63	public void onSaveInstanceState(Bundle outState)
64	{
65	if (dialog != null && dialog.isShowing())
66	dialog.dismiss();
67	outState.putSerializable("stations", (ArrayList<StationBean>) stations);
68	}
69
70
71
72	@Override
73	protected Dialog onCreateDialog(int id) {
74	switch (id) {
75	case DLG_PROGRESS:
76	ProgressDialog dlg = new ProgressDialog(this);
77	dlg.setMessage("Wait for location fix");
78	dlg.setCancelable(false);
79	return dlg;
80	default:
81	return super.onCreateDialog(id);
82	}
83
84	}
85
86
87
88	@Override
89	protected void onPrepareDialog(int id, Dialog dialog) {
90	super.onPrepareDialog(id, dialog);
91	switch (id) {
92	case DLG_PROGRESS:
93	this.dialog = (ProgressDialog) dialog;
94	break;
95	}
96	}
97
98	public void startLookup() {
99	isRunning = true;
100	showDialog(DLG_PROGRESS);
101
102	locator.locateStations();
103	stationsFetched.sendEmptyMessageDelayed(FIXTIMEOUT, 20000);
104	}
105
106
107	Handler stationsFetched = new Handler() {
108	@Override
109	public void handleMessage(Message msg) {
110	switch (msg.what) {
111	case GOTLOCATION:
112	dialog.setMessage("Finding nearby stations");
113	locatorTask.execute();
114	break;
115	case GOTSTATIONLIST:
116	dialog.dismiss();
117	if (locator.getStations().size() == 0)
118	MessageBox.showMessage(TrainInfoList.this,"Error loading station list!");
119	stations = locator.getStations();
120	adapter.setStations( stations );
121	break;
122	case NOPROVIDER:
123	dialog.dismiss();
124	MessageBox.showMessage(TrainInfoList.this,"No location provider enabled. Plase enable gps.");
125	break;
126	case FIXTIMEOUT:
127	dialog.dismiss();
128	if (isRunning) {
129	locator.abortLocationListener();
130	if (locator.hasLocation()) {
131	msg.what = GOTLOCATION;
132	handleMessage( msg ); // ToDo: ugly recursive call !!!
133	} else {
134	MessageBox.showMessage(TrainInfoList.this,"GPS fix timed out");
135	}
136	}
137	break;
138	case LOOKUPSTATIONFAILED:
139	dialog.dismiss();
140	MessageBox.showMessage(TrainInfoList.this,"Error on finding nearby stations");
141	break;
142	}
143	isRunning = false;
144	}
145	};
146
147
148
149	@Override
150	protected void onListItemClick(ListView l, View v, int position, long id) {
151	super.onListItemClick(l, v, position, id);
152
153	StationBean station = stations.get(position);
154
155	double latitude = station.getLatitude();
156	double longitude = station.getLongitude();
157	String addr = station.getAddress();
158
159	if (addr == null \|\| addr.trim().equals("") )
160	addr = lookupAddress(latitude, longitude);
161
162
163	Intent intent = new Intent(this, DepartureList.class);
164	intent.putExtra("name", station.getName());
165	intent.putExtra("address", addr);
166	intent.putExtra("distance", station.getDistance());
167	intent.putExtra("latitude", latitude);
168	intent.putExtra("longitude", longitude);
169	intent.putExtra("code", station.getCode());
170	startActivity(intent);
171	}
172
173	String lookupAddress(double latitude, double longitude) {
174
175	Geocoder coder = new Geocoder(this, new Locale("da"));
176	StringBuilder sb = new StringBuilder();
177	Log.i("lookupaddr", "" + latitude + "/" + longitude);
178	try {
179	List<Address> addressList = coder.getFromLocation(latitude, longitude, 1);
180	Address addr = addressList.get(0);
181
182
183	int max = addr.getMaxAddressLineIndex();
184	for (int i=0; i<max; i++) {
185	if (i>0)
186	sb.append(", ");
187
188	sb.append(addr.getAddressLine(i));
189	}
190
191
192	} catch (Exception e) {
193	Log.e("DepartureList", "geocoder failed", e);
194	}
195
196	return sb.toString();
197	}
198
199
200	class LocatorTask extends AsyncTask<Void,Void,Void> {
201	@Override
202	protected void onPreExecute() {
203
204	super.onPreExecute();
205	}
206
207	@Override
208	protected Void doInBackground(Void... params) {
209	locator.findNearestStations();
210
211	return null;
212	}
213
214	@Override
215	protected void onPostExecute(Void result) {
216	super.onPostExecute(result);
217
218	}
219	}
220	}