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

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.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;
        
        
        DepartureListAdapter adapter;
        DepartureProvider provider;
        List<DepartureBean> departures;
        
        int selectedItemId;
        //DepartureBean currentDeparture;
        
        ProgressDialog pgDialog;
        
        DepartureFetcher fetcher;

        StationBean station;
        
        boolean arrival = false;
        
        @SuppressWarnings("unchecked")
        @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 = (List<DepartureBean>) savedInstanceState.getSerializable("departures");
                                adapter.setDepartures(departures);
                                selectedItemId = savedInstanceState.getInt("selectedItemId");   
                        }
                }
        }
        
    @Override 
    public void onSaveInstanceState(Bundle outState) 
    {
        if (pgDialog != null && pgDialog.isShowing())
                dismissDialog(DLG_PROGRESS);

        outState.putInt("selectedItemId", selectedItemId);
        
        outState.putSerializable("departures", (ArrayList<DepartureBean>) 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;
                
                DepartureBean dep = departures.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);                
                }
        }

        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);
                                DepartureList.this.getListView().setVisibility(View.VISIBLE);
                                
                                if (departures.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	torben	237	package dk.thoerup.traininfo;
2
3	torben	835	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	torben	237	import java.text.NumberFormat;
10	torben	257	import java.util.ArrayList;
11	torben	237	import java.util.List;
12
13	torben	336	import android.app.AlertDialog;
14	torben	237	import android.app.Dialog;
15			import android.app.ListActivity;
16			import android.app.ProgressDialog;
17	torben	336	import android.content.DialogInterface;
18	torben	237	import android.content.Intent;
19	torben	239	import android.net.Uri;
20	torben	237	import android.os.AsyncTask;
21			import android.os.Bundle;
22	torben	630	import android.util.Log;
23	torben	237	import android.view.View;
24	torben	835	import android.view.View.OnClickListener;
25			import android.widget.Button;
26	torben	237	import android.widget.ListView;
27			import android.widget.TextView;
28	torben	255	import dk.thoerup.traininfo.provider.DepartureProvider;
29	torben	253	import dk.thoerup.traininfo.provider.ProviderFactory;
30	torben	245	import dk.thoerup.traininfo.util.MessageBox;
31	torben	237
32			public class DepartureList extends ListActivity {
33
34			public static final int DLG_PROGRESS = 1;
35
36	torben	362
37	torben	237	DepartureListAdapter adapter;
38			DepartureProvider provider;
39			List<DepartureBean> departures;
40
41	torben	257	int selectedItemId;
42			//DepartureBean currentDeparture;
43	torben	237
44			ProgressDialog pgDialog;
45	torben	362
46	torben	238	DepartureFetcher fetcher;
47	torben	557
48			StationBean station;
49	torben	238
50	torben	835	boolean arrival = false;
51
52	torben	257	@SuppressWarnings("unchecked")
53	torben	237	@Override
54			protected void onCreate(Bundle savedInstanceState) {
55			super.onCreate(savedInstanceState);
56			setContentView(R.layout.departurelist);
57
58			adapter = new DepartureListAdapter(this);
59			setListAdapter(adapter);
60
61			Intent launchedBy = getIntent();
62	torben	557
63			station = (StationBean) launchedBy.getSerializableExtra("stationbean");
64	torben	239
65	torben	557	((TextView) findViewById(R.id.stationName)).setText( station.getName() );
66	torben	317
67	torben	557
68			((TextView) findViewById(R.id.stationAddr)).setText( station.getAddress() );
69	torben	237
70	torben	835	final Button departureBtn = (Button) findViewById(R.id.departurebtn);
71			final Button arrivalBtn = (Button) findViewById(R.id.arrivalbtn);
72	torben	294
73	torben	835	departureBtn.setOnClickListener( new OnClickListener() {
74			@Override
75			public void onClick(View arg0) {
76			arrivalBtn.setBackgroundResource(R.drawable.custom_button);
77			departureBtn.setBackgroundResource(R.drawable.custom_button_hilight);
78			arrival = false;
79			startDepartureFetcher();
80			}
81			});
82			arrivalBtn.setOnClickListener( new OnClickListener() {
83			@Override
84			public void onClick(View arg0) {
85			arrivalBtn.setBackgroundResource(R.drawable.custom_button_hilight);
86			departureBtn.setBackgroundResource(R.drawable.custom_button);
87			arrival = true;
88			startDepartureFetcher();
89			}
90			});
91
92
93
94
95	torben	239	findViewById(R.id.header).setOnClickListener( mapLauncher );
96	torben	237
97	torben	557	int distance = station.getDistance();
98	torben	742	if (distance != 0) {
99			NumberFormat format = NumberFormat.getNumberInstance();
100			format.setMaximumFractionDigits(1);
101			format.setMinimumFractionDigits(1);
102	torben	575
103	torben	742	((TextView) findViewById(R.id.stationDistance)).setText( format.format((double)distance/1000.0) + " km." );
104			} else {
105			((TextView) findViewById(R.id.stationDistance)).setVisibility(View.GONE);
106			}
107
108	torben	552
109	torben	557	if (station.isRegional() == false && station.isSTrain() == false) {
110	torben	552	getListView().setVisibility( View.GONE );
111			findViewById(R.id.metroonly).setVisibility( View.VISIBLE );
112	torben	835	departureBtn.setVisibility( View.GONE );
113			arrivalBtn.setVisibility(View.GONE);
114	torben	552
115	torben	257	} else {
116	torben	552	provider = ProviderFactory.getDepartureProvider();
117
118			if (savedInstanceState == null) {
119			startDepartureFetcher();
120			} else {
121			departures = (List<DepartureBean>) savedInstanceState.getSerializable("departures");
122			adapter.setDepartures(departures);
123			selectedItemId = savedInstanceState.getInt("selectedItemId");
124			}
125	torben	257	}
126	torben	237	}
127
128	torben	243	@Override
129			public void onSaveInstanceState(Bundle outState)
130			{
131	torben	257	if (pgDialog != null && pgDialog.isShowing())
132			dismissDialog(DLG_PROGRESS);
133	torben	362
134	torben	257	outState.putInt("selectedItemId", selectedItemId);
135
136			outState.putSerializable("departures", (ArrayList<DepartureBean>) departures);
137	torben	243	}
138	torben	918
139
140	torben	243
141	torben	237	@Override
142	torben	918	protected void onDestroy() {
143			super.onDestroy();
144
145			if (fetcher != null) {
146			fetcher.cancel(true);
147			}
148			}
149
150			@Override
151	torben	237	protected void onListItemClick(ListView l, View v, int position, long id) {
152			super.onListItemClick(l, v, position, id);
153	torben	362
154			selectedItemId = position;
155	torben	364
156			DepartureBean dep = departures.get(selectedItemId);
157	torben	237
158	torben	362	Intent intent = new Intent(this, TimetableList.class);
159	torben	364	intent.putExtra("departure", dep);
160	torben	362
161			startActivity(intent);
162
163	torben	237	}
164
165
166			@Override
167			protected void onPrepareDialog(int id, Dialog dialog) {
168			super.onPrepareDialog(id, dialog);
169	torben	257
170	torben	237	switch (id) {
171			case DLG_PROGRESS:
172			pgDialog = (ProgressDialog) dialog;
173	torben	835	int messageId = arrival == false ? departurelist_fetchdepartures : departurelist_fetcharrivals;
174			pgDialog.setMessage( getString(messageId) );
175	torben	237	break;
176			}
177			}
178
179			@Override
180			protected Dialog onCreateDialog(int id) {
181			switch (id) {
182			case DLG_PROGRESS:
183	torben	835
184	torben	237	ProgressDialog dlg = new ProgressDialog(this);
185			dlg.setCancelable(true);
186	torben	362	return dlg;
187	torben	237	default:
188			return super.onCreateDialog(id);
189			}
190			}
191	torben	336
192			void startDepartureFetcher() {
193			showDialog(DLG_PROGRESS);
194			fetcher = new DepartureFetcher();
195	torben	557	fetcher.execute(station.getId());
196	torben	336	}
197	torben	316
198	torben	237	class DialogDismisser implements View.OnClickListener {
199
200			Dialog dlg;
201			public DialogDismisser(Dialog d) {
202			dlg = d;
203			}
204
205			@Override
206			public void onClick(View v) {
207			if (dlg.isShowing())
208			dlg.dismiss();
209	torben	365	}
210			}
211	torben	238
212	torben	239	View.OnClickListener mapLauncher = new View.OnClickListener() {
213			@Override
214	torben	557	public void onClick(View v) {
215			Uri uri = Uri.parse("geo:" + station.getLatitude() + "," + station.getLongitude());
216	torben	239	startActivity( new Intent(Intent.ACTION_VIEW, uri));
217			}
218			};
219	torben	336
220
221	torben	238
222	torben	310	class DepartureFetcher extends AsyncTask<Integer, Void, Void> {
223	torben	238
224	torben	319	boolean success;
225	torben	365
226	torben	238	@Override
227			protected void onPostExecute(Void result) {
228			super.onPostExecute(result);
229
230	torben	336
231	torben	238	pgDialog.dismiss();
232
233	torben	319	if (success) {
234	torben	917	DepartureList.this.getListView().setVisibility(View.GONE); //Experimental, inspired by http://osdir.com/ml/Android-Developers/2010-04/msg01198.html
235	torben	336	adapter.setDepartures(departures);
236	torben	917	DepartureList.this.getListView().setVisibility(View.VISIBLE);
237
238	torben	319	if (departures.size() == 0) {
239	torben	906	MessageBox.showMessage(DepartureList.this, "No departures found", true);
240	torben	319	}
241			} else { // communication or parse error
242	torben	336	AlertDialog.Builder builder = new AlertDialog.Builder(DepartureList.this);
243			builder.setMessage("Error finding departures");
244			builder.setCancelable(true);
245	torben	561	builder.setPositiveButton(getString(generic_retry), new DialogInterface.OnClickListener() {
246	torben	336	public void onClick(DialogInterface dialog, int id) {
247			dialog.dismiss();
248			startDepartureFetcher();
249
250			}
251			});
252	torben	561	builder.setNegativeButton(getString(generic_cancel), new DialogInterface.OnClickListener() {
253	torben	336	public void onClick(DialogInterface dialog, int id) {
254			dialog.dismiss();
255	torben	843	DepartureList.this.finish();
256	torben	336	}
257	torben	630	});
258
259			try {
260			builder.show();
261			} catch (android.view.WindowManager.BadTokenException e) {
262			Log.i("DepartureList", "BadTokenException"); // this can happen if the user switched away from this activity, while doInBackground was running
263			}
264	torben	319	}
265	torben	238	}
266
267			@Override
268	torben	310	protected Void doInBackground(Integer... params) {
269	torben	835	success = provider.lookupDepartures(params[0], DepartureList.this.arrival);
270			departures = provider.getDepartures(params[0], DepartureList.this.arrival);
271	torben	238	return null;
272			}
273
274			}
275	torben	237	}