thoerup/traininfo/DepartureList.java

package dk.thoerup.traininfo;

import static dk.thoerup.traininfo.R.string.departurelist_fetchdepartures;
import static dk.thoerup.traininfo.R.string.departurelist_fetcharrivals;
import static dk.thoerup.traininfo.R.string.generic_cancel;
import static dk.thoerup.traininfo.R.string.generic_retry;


import java.text.NumberFormat;


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.net.Uri;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ListView;
import android.widget.TextView;
import dk.thoerup.traininfo.provider.DepartureProvider;
import dk.thoerup.traininfo.provider.ProviderFactory;
import dk.thoerup.traininfo.util.MessageBox;

public class DepartureList extends ListActivity {

        public static final int DLG_PROGRESS = 1;
        static final int MENU_MAP = 100;
        static final int MENU_NOTIFICATIONS = 101;
        
        
        DepartureListAdapter adapter;
        DepartureProvider provider;
        DepartureBean departures;
        
        int selectedItemId;
        //DepartureBean currentDeparture;
        
        ProgressDialog pgDialog;
        
        DepartureFetcher fetcher;

        StationBean station;
        
        boolean arrival = false;

        int commFailCounter = 0;

        @Override
        protected void onCreate(Bundle savedInstanceState) {
                super.onCreate(savedInstanceState);
                setContentView(R.layout.departurelist);
                
                adapter = new DepartureListAdapter(this);
                setListAdapter(adapter);
                
                Intent launchedBy = getIntent();
        
                station = (StationBean) launchedBy.getSerializableExtra("stationbean");
                
                ((TextView) findViewById(R.id.stationName)).setText( station.getName() );


                ((TextView) findViewById(R.id.stationAddr)).setText( station.getAddress() );
                
                final Button departureBtn = (Button) findViewById(R.id.departurebtn);
                final Button arrivalBtn = (Button) findViewById(R.id.arrivalbtn);
                
                departureBtn.setOnClickListener( new OnClickListener() {
                        @Override
                        public void onClick(View arg0) {        
                                arrivalBtn.setBackgroundResource(R.drawable.custom_button);
                                departureBtn.setBackgroundResource(R.drawable.custom_button_hilight);
                                arrival = false;
                                startDepartureFetcher();
                        }
                });
                arrivalBtn.setOnClickListener( new OnClickListener() {
                        @Override
                        public void onClick(View arg0) {        
                                arrivalBtn.setBackgroundResource(R.drawable.custom_button_hilight);
                                departureBtn.setBackgroundResource(R.drawable.custom_button);
                                arrival = true;                 
                                startDepartureFetcher();
                        }
                });
                
                
                // findViewById(R.id.header).setOnClickListener( mapLauncher );
                
                int distance = station.getDistance();
                if (distance != 0) {
                        NumberFormat format = NumberFormat.getNumberInstance();
                        format.setMaximumFractionDigits(1);
                        format.setMinimumFractionDigits(1);
                
                        ((TextView) findViewById(R.id.stationDistance)).setText( format.format((double)distance/1000.0) + " km." );
                } else {
                        ((TextView) findViewById(R.id.stationDistance)).setVisibility(View.GONE);
                }
        
                ProviderFactory.purgeOldEntries(); //cleanup before fetching more data
        
                if (station.isRegional() == false && station.isSTrain() == false) {
                        getListView().setVisibility( View.GONE );               
                        findViewById(R.id.metroonly).setVisibility( View.VISIBLE );
                        departureBtn.setVisibility( View.GONE );
                        arrivalBtn.setVisibility(View.GONE);
                        
                } else {
                        provider = ProviderFactory.getDepartureProvider();
                        
                        if (savedInstanceState == null) {
                                startDepartureFetcher();
                        } else {
                                departures = (DepartureBean) savedInstanceState.getSerializable("departures");
                                
                                if ( (departures != null) && (departures.entries != null) ) {
                                        adapter.setDepartures(departures.entries);
                                }
                                selectedItemId = savedInstanceState.getInt("selectedItemId");
                                
                                if ( hasNotifications() ) {
                                        findViewById(R.id.notifIcon).setVisibility(View.VISIBLE);
                                }
                                
                        }
                }
        }
        
        boolean hasNotifications() {
                return (departures != null && departures.notifications.size() > 0);
        }
        
    @Override 
    public void onSaveInstanceState(Bundle outState) 
    {
        if (pgDialog != null && pgDialog.isShowing())
                dismissDialog(DLG_PROGRESS);

        outState.putInt("selectedItemId", selectedItemId);
        
        outState.putSerializable("departures",  departures);
    }
    
    
        @Override
        protected void onDestroy() {
                super.onDestroy();
                
                if (fetcher != null) {
                        fetcher.cancel(true);
                }
        }

        @Override
        protected void onListItemClick(ListView l, View v, int position, long id) {
                super.onListItemClick(l, v, position, id);
                
                selectedItemId = position;
                
                DepartureEntry dep = departures.entries.get(selectedItemId);
        
                Intent intent = new Intent(this, TimetableList.class);
                intent.putExtra("departure", dep);
                
                startActivity(intent);
                                
        }
        

        @Override
        protected void onPrepareDialog(int id, Dialog dialog) {
                super.onPrepareDialog(id, dialog);
                
                switch (id) {
                case DLG_PROGRESS:
                        pgDialog = (ProgressDialog) dialog;
                        int messageId = arrival == false ? departurelist_fetchdepartures : departurelist_fetcharrivals;
                        pgDialog.setMessage( getString(messageId) );
                        break;
                }
        }
        
        @Override
        protected Dialog onCreateDialog(int id) {
                switch (id) {
                case DLG_PROGRESS:

                        ProgressDialog dlg = new ProgressDialog(this);
                        dlg.setCancelable(true);
                        return dlg;                     
                default:
                        return super.onCreateDialog(id);                
                }
        }
        
        
        @Override
        public boolean onCreateOptionsMenu(Menu menu) {
                MenuItem item;
                
                item = menu.add(0, MENU_MAP, 0, getString(R.string.departurelist_showonmap) );
                item.setIcon(android.R.drawable.ic_menu_mapmode);
                
                item = menu.add(0, MENU_NOTIFICATIONS, 0, getString(R.string.departurelist_notifications) );
                item.setIcon(android.R.drawable.ic_menu_info_details);
                
                
                boolean notifEnabled = hasNotifications();
                item.setEnabled(notifEnabled);
                

                return true;
        }

        @Override
        public boolean onOptionsItemSelected(MenuItem item) {           
                boolean res;
                switch(item.getItemId()) {
                case MENU_MAP:
                        Uri uri = Uri.parse("geo:" + station.getLatitude() + "," + station.getLongitude());
                        startActivity( new Intent(Intent.ACTION_VIEW, uri));
                        res = true;
                        break;
                case MENU_NOTIFICATIONS:
                        Intent i = new Intent(this,dk.thoerup.traininfo.NotificationList.class);
                        i.putExtra(NotificationList.EXTRA_NOTIFICATIONS, departures.notifications);
                        startActivity(i);
                        res = true;
                        break;
                default:
                        res = super.onOptionsItemSelected(item); 
                }
                return res;
        }

        void startDepartureFetcher() {
                showDialog(DLG_PROGRESS);
                fetcher = new DepartureFetcher(); 
                fetcher.execute(station.getId());
        }
        
        class DialogDismisser implements View.OnClickListener {

                Dialog dlg;
                public DialogDismisser(Dialog d) {
                        dlg = d;
                }
                
                @Override
                public void onClick(View v) {
                        if (dlg.isShowing())
                                dlg.dismiss();
                }       
        }
        
        /*View.OnClickListener mapLauncher = new View.OnClickListener() {
                @Override
                public void onClick(View v) {                   
                        Uri uri = Uri.parse("geo:" + station.getLatitude() + "," + station.getLongitude());
                        startActivity( new Intent(Intent.ACTION_VIEW, uri));
                }
        };*/


        class DepartureFetcher extends AsyncTask<Integer, Void, Void> {


                @Override
                protected void onPostExecute(Void result) {
                        super.onPostExecute(result);
                        
                        
                        pgDialog.dismiss();
                        
                        if (departures != null) {
                                commFailCounter = 0;
                                DepartureList.this.getListView().setVisibility(View.GONE); //Experimental, inspired by http://osdir.com/ml/Android-Developers/2010-04/msg01198.html
                                adapter.setDepartures(departures.entries);
                                DepartureList.this.getListView().setVisibility(View.VISIBLE);
                                
                                
                                if ( hasNotifications() ) {
                                        findViewById(R.id.notifIcon).setVisibility(View.VISIBLE);
                                }
                                
                                if (departures.entries.size() == 0) {
                                        MessageBox.showMessage(DepartureList.this, "No departures found", true);
                                }
                        } else { // communication or parse error
                                commFailCounter++;
                                AlertDialog.Builder builder = new AlertDialog.Builder(DepartureList.this);                                              
                                builder.setMessage("Error finding departures");
                                builder.setCancelable(true);
                                if (commFailCounter < 3) {
                                        builder.setPositiveButton(getString(generic_retry), new DialogInterface.OnClickListener() {
                                                public void onClick(DialogInterface dialog, int id) {
                                                        dialog.dismiss();
                                                        startDepartureFetcher();
                                                        
                                                }
                                        });
                                }
                                builder.setNegativeButton(getString(generic_cancel), new DialogInterface.OnClickListener() {
                                        public void onClick(DialogInterface dialog, int id) {
                                                dialog.dismiss();
                                                DepartureList.this.finish();
                                        }                                                       
                                });
                                
                                try {
                                        builder.show();
                                } catch (android.view.WindowManager.BadTokenException e) {                                      
                                        Log.i("DepartureList", "BadTokenException"); // this can happen if the user switched away from this activity, while doInBackground was running
                                }                               
                        }
                }

                @Override
                protected Void doInBackground(Integer... params) {
                        departures = provider.lookupDepartures(params[0], DepartureList.this.arrival);
                        return null;
                }
                
        }
}
1	package dk.thoerup.traininfo;
2
3	import static dk.thoerup.traininfo.R.string.departurelist_fetchdepartures;
4	import static dk.thoerup.traininfo.R.string.departurelist_fetcharrivals;
5	import static dk.thoerup.traininfo.R.string.generic_cancel;
6	import static dk.thoerup.traininfo.R.string.generic_retry;
7
8
9	import java.text.NumberFormat;
10
11
12	import android.app.AlertDialog;
13	import android.app.Dialog;
14	import android.app.ListActivity;
15	import android.app.ProgressDialog;
16	import android.content.DialogInterface;
17	import android.content.Intent;
18	import android.net.Uri;
19	import android.os.AsyncTask;
20	import android.os.Bundle;
21	import android.util.Log;
22	import android.view.Menu;
23	import android.view.MenuItem;
24	import android.view.View;
25	import android.view.View.OnClickListener;
26	import android.widget.Button;
27	import android.widget.ListView;
28	import android.widget.TextView;
29	import dk.thoerup.traininfo.provider.DepartureProvider;
30	import dk.thoerup.traininfo.provider.ProviderFactory;
31	import dk.thoerup.traininfo.util.MessageBox;
32
33	public class DepartureList extends ListActivity {
34
35	public static final int DLG_PROGRESS = 1;
36	static final int MENU_MAP = 100;
37	static final int MENU_NOTIFICATIONS = 101;
38
39
40	DepartureListAdapter adapter;
41	DepartureProvider provider;
42	DepartureBean departures;
43
44	int selectedItemId;
45	//DepartureBean currentDeparture;
46
47	ProgressDialog pgDialog;
48
49	DepartureFetcher fetcher;
50
51	StationBean station;
52
53	boolean arrival = false;
54
55	int commFailCounter = 0;
56
57	@Override
58	protected void onCreate(Bundle savedInstanceState) {
59	super.onCreate(savedInstanceState);
60	setContentView(R.layout.departurelist);
61
62	adapter = new DepartureListAdapter(this);
63	setListAdapter(adapter);
64
65	Intent launchedBy = getIntent();
66
67	station = (StationBean) launchedBy.getSerializableExtra("stationbean");
68
69	((TextView) findViewById(R.id.stationName)).setText( station.getName() );
70
71
72	((TextView) findViewById(R.id.stationAddr)).setText( station.getAddress() );
73
74	final Button departureBtn = (Button) findViewById(R.id.departurebtn);
75	final Button arrivalBtn = (Button) findViewById(R.id.arrivalbtn);
76
77	departureBtn.setOnClickListener( new OnClickListener() {
78	@Override
79	public void onClick(View arg0) {
80	arrivalBtn.setBackgroundResource(R.drawable.custom_button);
81	departureBtn.setBackgroundResource(R.drawable.custom_button_hilight);
82	arrival = false;
83	startDepartureFetcher();
84	}
85	});
86	arrivalBtn.setOnClickListener( new OnClickListener() {
87	@Override
88	public void onClick(View arg0) {
89	arrivalBtn.setBackgroundResource(R.drawable.custom_button_hilight);
90	departureBtn.setBackgroundResource(R.drawable.custom_button);
91	arrival = true;
92	startDepartureFetcher();
93	}
94	});
95
96
97
98
99	// findViewById(R.id.header).setOnClickListener( mapLauncher );
100
101	int distance = station.getDistance();
102	if (distance != 0) {
103	NumberFormat format = NumberFormat.getNumberInstance();
104	format.setMaximumFractionDigits(1);
105	format.setMinimumFractionDigits(1);
106
107	((TextView) findViewById(R.id.stationDistance)).setText( format.format((double)distance/1000.0) + " km." );
108	} else {
109	((TextView) findViewById(R.id.stationDistance)).setVisibility(View.GONE);
110	}
111
112	ProviderFactory.purgeOldEntries(); //cleanup before fetching more data
113
114	if (station.isRegional() == false && station.isSTrain() == false) {
115	getListView().setVisibility( View.GONE );
116	findViewById(R.id.metroonly).setVisibility( View.VISIBLE );
117	departureBtn.setVisibility( View.GONE );
118	arrivalBtn.setVisibility(View.GONE);
119
120	} else {
121	provider = ProviderFactory.getDepartureProvider();
122
123	if (savedInstanceState == null) {
124	startDepartureFetcher();
125	} else {
126	departures = (DepartureBean) savedInstanceState.getSerializable("departures");
127
128	if ( (departures != null) && (departures.entries != null) ) {
129	adapter.setDepartures(departures.entries);
130	}
131	selectedItemId = savedInstanceState.getInt("selectedItemId");
132
133	if ( hasNotifications() ) {
134	findViewById(R.id.notifIcon).setVisibility(View.VISIBLE);
135	}
136
137	}
138	}
139	}
140
141	boolean hasNotifications() {
142	return (departures != null && departures.notifications.size() > 0);
143	}
144
145	@Override
146	public void onSaveInstanceState(Bundle outState)
147	{
148	if (pgDialog != null && pgDialog.isShowing())
149	dismissDialog(DLG_PROGRESS);
150
151	outState.putInt("selectedItemId", selectedItemId);
152
153	outState.putSerializable("departures", departures);
154	}
155
156
157
158	@Override
159	protected void onDestroy() {
160	super.onDestroy();
161
162	if (fetcher != null) {
163	fetcher.cancel(true);
164	}
165	}
166
167	@Override
168	protected void onListItemClick(ListView l, View v, int position, long id) {
169	super.onListItemClick(l, v, position, id);
170
171	selectedItemId = position;
172
173	DepartureEntry dep = departures.entries.get(selectedItemId);
174
175	Intent intent = new Intent(this, TimetableList.class);
176	intent.putExtra("departure", dep);
177
178	startActivity(intent);
179
180	}
181
182
183	@Override
184	protected void onPrepareDialog(int id, Dialog dialog) {
185	super.onPrepareDialog(id, dialog);
186
187	switch (id) {
188	case DLG_PROGRESS:
189	pgDialog = (ProgressDialog) dialog;
190	int messageId = arrival == false ? departurelist_fetchdepartures : departurelist_fetcharrivals;
191	pgDialog.setMessage( getString(messageId) );
192	break;
193	}
194	}
195
196	@Override
197	protected Dialog onCreateDialog(int id) {
198	switch (id) {
199	case DLG_PROGRESS:
200
201	ProgressDialog dlg = new ProgressDialog(this);
202	dlg.setCancelable(true);
203	return dlg;
204	default:
205	return super.onCreateDialog(id);
206	}
207	}
208
209
210
211
212
213	@Override
214	public boolean onCreateOptionsMenu(Menu menu) {
215	MenuItem item;
216
217	item = menu.add(0, MENU_MAP, 0, getString(R.string.departurelist_showonmap) );
218	item.setIcon(android.R.drawable.ic_menu_mapmode);
219
220	item = menu.add(0, MENU_NOTIFICATIONS, 0, getString(R.string.departurelist_notifications) );
221	item.setIcon(android.R.drawable.ic_menu_info_details);
222
223
224	boolean notifEnabled = hasNotifications();
225	item.setEnabled(notifEnabled);
226
227
228	return true;
229	}
230
231	@Override
232	public boolean onOptionsItemSelected(MenuItem item) {
233	boolean res;
234	switch(item.getItemId()) {
235	case MENU_MAP:
236	Uri uri = Uri.parse("geo:" + station.getLatitude() + "," + station.getLongitude());
237	startActivity( new Intent(Intent.ACTION_VIEW, uri));
238	res = true;
239	break;
240	case MENU_NOTIFICATIONS:
241	Intent i = new Intent(this,dk.thoerup.traininfo.NotificationList.class);
242	i.putExtra(NotificationList.EXTRA_NOTIFICATIONS, departures.notifications);
243	startActivity(i);
244	res = true;
245	break;
246	default:
247	res = super.onOptionsItemSelected(item);
248	}
249	return res;
250	}
251
252	void startDepartureFetcher() {
253	showDialog(DLG_PROGRESS);
254	fetcher = new DepartureFetcher();
255	fetcher.execute(station.getId());
256	}
257
258	class DialogDismisser implements View.OnClickListener {
259
260	Dialog dlg;
261	public DialogDismisser(Dialog d) {
262	dlg = d;
263	}
264
265	@Override
266	public void onClick(View v) {
267	if (dlg.isShowing())
268	dlg.dismiss();
269	}
270	}
271
272	/*View.OnClickListener mapLauncher = new View.OnClickListener() {
273	@Override
274	public void onClick(View v) {
275	Uri uri = Uri.parse("geo:" + station.getLatitude() + "," + station.getLongitude());
276	startActivity( new Intent(Intent.ACTION_VIEW, uri));
277	}
278	};*/
279
280
281
282	class DepartureFetcher extends AsyncTask<Integer, Void, Void> {
283
284
285	@Override
286	protected void onPostExecute(Void result) {
287	super.onPostExecute(result);
288
289
290	pgDialog.dismiss();
291
292	if (departures != null) {
293	commFailCounter = 0;
294	DepartureList.this.getListView().setVisibility(View.GONE); //Experimental, inspired by http://osdir.com/ml/Android-Developers/2010-04/msg01198.html
295	adapter.setDepartures(departures.entries);
296	DepartureList.this.getListView().setVisibility(View.VISIBLE);
297
298
299	if ( hasNotifications() ) {
300	findViewById(R.id.notifIcon).setVisibility(View.VISIBLE);
301	}
302
303	if (departures.entries.size() == 0) {
304	MessageBox.showMessage(DepartureList.this, "No departures found", true);
305	}
306	} else { // communication or parse error
307	commFailCounter++;
308	AlertDialog.Builder builder = new AlertDialog.Builder(DepartureList.this);
309	builder.setMessage("Error finding departures");
310	builder.setCancelable(true);
311	if (commFailCounter < 3) {
312	builder.setPositiveButton(getString(generic_retry), new DialogInterface.OnClickListener() {
313	public void onClick(DialogInterface dialog, int id) {
314	dialog.dismiss();
315	startDepartureFetcher();
316
317	}
318	});
319	}
320	builder.setNegativeButton(getString(generic_cancel), new DialogInterface.OnClickListener() {
321	public void onClick(DialogInterface dialog, int id) {
322	dialog.dismiss();
323	DepartureList.this.finish();
324	}
325	});
326
327	try {
328	builder.show();
329	} catch (android.view.WindowManager.BadTokenException e) {
330	Log.i("DepartureList", "BadTokenException"); // this can happen if the user switched away from this activity, while doInBackground was running
331	}
332	}
333	}
334
335	@Override
336	protected Void doInBackground(Integer... params) {
337	departures = provider.lookupDepartures(params[0], DepartureList.this.arrival);
338	return null;
339	}
340
341	}
342	}