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.ContextMenu;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ContextMenu.ContextMenuInfo;
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;
        

        @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");
                                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, "Show on map");
                item.setIcon(android.R.drawable.ic_menu_mapmode);
                
                item = menu.add(0, MENU_NOTIFICATIONS, 0, "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> {

                boolean success;

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