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);
                }
                
        
                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
113	if (station.isRegional() == false && station.isSTrain() == false) {
114	getListView().setVisibility( View.GONE );
115	findViewById(R.id.metroonly).setVisibility( View.VISIBLE );
116	departureBtn.setVisibility( View.GONE );
117	arrivalBtn.setVisibility(View.GONE);
118
119	} else {
120	provider = ProviderFactory.getDepartureProvider();
121
122	if (savedInstanceState == null) {
123	startDepartureFetcher();
124	} else {
125	departures = (DepartureBean) savedInstanceState.getSerializable("departures");
126
127	if ( (departures != null) && (departures.entries != null) ) {
128	adapter.setDepartures(departures.entries);
129	}
130	selectedItemId = savedInstanceState.getInt("selectedItemId");
131
132	if ( hasNotifications() ) {
133	findViewById(R.id.notifIcon).setVisibility(View.VISIBLE);
134	}
135
136	}
137	}
138	}
139
140	boolean hasNotifications() {
141	return (departures != null && departures.notifications.size() > 0);
142	}
143
144	@Override
145	public void onSaveInstanceState(Bundle outState)
146	{
147	if (pgDialog != null && pgDialog.isShowing())
148	dismissDialog(DLG_PROGRESS);
149
150	outState.putInt("selectedItemId", selectedItemId);
151
152	outState.putSerializable("departures", departures);
153	}
154
155
156
157	@Override
158	protected void onDestroy() {
159	super.onDestroy();
160
161	if (fetcher != null) {
162	fetcher.cancel(true);
163	}
164	}
165
166	@Override
167	protected void onListItemClick(ListView l, View v, int position, long id) {
168	super.onListItemClick(l, v, position, id);
169
170	selectedItemId = position;
171
172	DepartureEntry dep = departures.entries.get(selectedItemId);
173
174	Intent intent = new Intent(this, TimetableList.class);
175	intent.putExtra("departure", dep);
176
177	startActivity(intent);
178
179	}
180
181
182	@Override
183	protected void onPrepareDialog(int id, Dialog dialog) {
184	super.onPrepareDialog(id, dialog);
185
186	switch (id) {
187	case DLG_PROGRESS:
188	pgDialog = (ProgressDialog) dialog;
189	int messageId = arrival == false ? departurelist_fetchdepartures : departurelist_fetcharrivals;
190	pgDialog.setMessage( getString(messageId) );
191	break;
192	}
193	}
194
195	@Override
196	protected Dialog onCreateDialog(int id) {
197	switch (id) {
198	case DLG_PROGRESS:
199
200	ProgressDialog dlg = new ProgressDialog(this);
201	dlg.setCancelable(true);
202	return dlg;
203	default:
204	return super.onCreateDialog(id);
205	}
206	}
207
208
209
210
211
212	@Override
213	public boolean onCreateOptionsMenu(Menu menu) {
214	MenuItem item;
215
216	item = menu.add(0, MENU_MAP, 0, getString(R.string.departurelist_showonmap) );
217	item.setIcon(android.R.drawable.ic_menu_mapmode);
218
219	item = menu.add(0, MENU_NOTIFICATIONS, 0, getString(R.string.departurelist_notifications) );
220	item.setIcon(android.R.drawable.ic_menu_info_details);
221
222
223	boolean notifEnabled = hasNotifications();
224	item.setEnabled(notifEnabled);
225
226
227	return true;
228	}
229
230	@Override
231	public boolean onOptionsItemSelected(MenuItem item) {
232	boolean res;
233	switch(item.getItemId()) {
234	case MENU_MAP:
235	Uri uri = Uri.parse("geo:" + station.getLatitude() + "," + station.getLongitude());
236	startActivity( new Intent(Intent.ACTION_VIEW, uri));
237	res = true;
238	break;
239	case MENU_NOTIFICATIONS:
240	Intent i = new Intent(this,dk.thoerup.traininfo.NotificationList.class);
241	i.putExtra(NotificationList.EXTRA_NOTIFICATIONS, departures.notifications);
242	startActivity(i);
243	res = true;
244	break;
245	default:
246	res = super.onOptionsItemSelected(item);
247	}
248	return res;
249	}
250
251	void startDepartureFetcher() {
252	showDialog(DLG_PROGRESS);
253	fetcher = new DepartureFetcher();
254	fetcher.execute(station.getId());
255	}
256
257	class DialogDismisser implements View.OnClickListener {
258
259	Dialog dlg;
260	public DialogDismisser(Dialog d) {
261	dlg = d;
262	}
263
264	@Override
265	public void onClick(View v) {
266	if (dlg.isShowing())
267	dlg.dismiss();
268	}
269	}
270
271	/*View.OnClickListener mapLauncher = new View.OnClickListener() {
272	@Override
273	public void onClick(View v) {
274	Uri uri = Uri.parse("geo:" + station.getLatitude() + "," + station.getLongitude());
275	startActivity( new Intent(Intent.ACTION_VIEW, uri));
276	}
277	};*/
278
279
280
281	class DepartureFetcher extends AsyncTask<Integer, Void, Void> {
282
283
284	@Override
285	protected void onPostExecute(Void result) {
286	super.onPostExecute(result);
287
288
289	pgDialog.dismiss();
290
291	if (departures != null) {
292	commFailCounter = 0;
293	DepartureList.this.getListView().setVisibility(View.GONE); //Experimental, inspired by http://osdir.com/ml/Android-Developers/2010-04/msg01198.html
294	adapter.setDepartures(departures.entries);
295	DepartureList.this.getListView().setVisibility(View.VISIBLE);
296
297
298	if ( hasNotifications() ) {
299	findViewById(R.id.notifIcon).setVisibility(View.VISIBLE);
300	}
301
302	if (departures.entries.size() == 0) {
303	MessageBox.showMessage(DepartureList.this, "No departures found", true);
304	}
305	} else { // communication or parse error
306	commFailCounter++;
307	AlertDialog.Builder builder = new AlertDialog.Builder(DepartureList.this);
308	builder.setMessage("Error finding departures");
309	builder.setCancelable(true);
310	if (commFailCounter < 3) {
311	builder.setPositiveButton(getString(generic_retry), new DialogInterface.OnClickListener() {
312	public void onClick(DialogInterface dialog, int id) {
313	dialog.dismiss();
314	startDepartureFetcher();
315
316	}
317	});
318	}
319	builder.setNegativeButton(getString(generic_cancel), new DialogInterface.OnClickListener() {
320	public void onClick(DialogInterface dialog, int id) {
321	dialog.dismiss();
322	DepartureList.this.finish();
323	}
324	});
325
326	try {
327	builder.show();
328	} catch (android.view.WindowManager.BadTokenException e) {
329	Log.i("DepartureList", "BadTokenException"); // this can happen if the user switched away from this activity, while doInBackground was running
330	}
331	}
332	}
333
334	@Override
335	protected Void doInBackground(Integer... params) {
336	departures = provider.lookupDepartures(params[0], DepartureList.this.arrival);
337	return null;
338	}
339
340	}
341	}