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.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;
        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");   
                        }
                }
        }
        
    @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);                
                }
        }

        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 (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	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
11	torben	981
12	torben	336	import android.app.AlertDialog;
13	torben	237	import android.app.Dialog;
14			import android.app.ListActivity;
15			import android.app.ProgressDialog;
16	torben	336	import android.content.DialogInterface;
17	torben	237	import android.content.Intent;
18	torben	239	import android.net.Uri;
19	torben	237	import android.os.AsyncTask;
20			import android.os.Bundle;
21	torben	630	import android.util.Log;
22	torben	237	import android.view.View;
23	torben	835	import android.view.View.OnClickListener;
24			import android.widget.Button;
25	torben	237	import android.widget.ListView;
26			import android.widget.TextView;
27	torben	255	import dk.thoerup.traininfo.provider.DepartureProvider;
28	torben	253	import dk.thoerup.traininfo.provider.ProviderFactory;
29	torben	245	import dk.thoerup.traininfo.util.MessageBox;
30	torben	237
31			public class DepartureList extends ListActivity {
32
33			public static final int DLG_PROGRESS = 1;
34
35	torben	362
36	torben	237	DepartureListAdapter adapter;
37			DepartureProvider provider;
38	torben	981	DepartureBean departures;
39	torben	237
40	torben	257	int selectedItemId;
41			//DepartureBean currentDeparture;
42	torben	237
43			ProgressDialog pgDialog;
44	torben	362
45	torben	238	DepartureFetcher fetcher;
46	torben	557
47			StationBean station;
48	torben	238
49	torben	835	boolean arrival = false;
50
51	torben	981
52	torben	237	@Override
53			protected void onCreate(Bundle savedInstanceState) {
54			super.onCreate(savedInstanceState);
55			setContentView(R.layout.departurelist);
56
57			adapter = new DepartureListAdapter(this);
58			setListAdapter(adapter);
59
60			Intent launchedBy = getIntent();
61	torben	557
62			station = (StationBean) launchedBy.getSerializableExtra("stationbean");
63	torben	239
64	torben	557	((TextView) findViewById(R.id.stationName)).setText( station.getName() );
65	torben	317
66	torben	557
67			((TextView) findViewById(R.id.stationAddr)).setText( station.getAddress() );
68	torben	237
69	torben	835	final Button departureBtn = (Button) findViewById(R.id.departurebtn);
70			final Button arrivalBtn = (Button) findViewById(R.id.arrivalbtn);
71	torben	294
72	torben	835	departureBtn.setOnClickListener( new OnClickListener() {
73			@Override
74			public void onClick(View arg0) {
75			arrivalBtn.setBackgroundResource(R.drawable.custom_button);
76			departureBtn.setBackgroundResource(R.drawable.custom_button_hilight);
77			arrival = false;
78			startDepartureFetcher();
79			}
80			});
81			arrivalBtn.setOnClickListener( new OnClickListener() {
82			@Override
83			public void onClick(View arg0) {
84			arrivalBtn.setBackgroundResource(R.drawable.custom_button_hilight);
85			departureBtn.setBackgroundResource(R.drawable.custom_button);
86			arrival = true;
87			startDepartureFetcher();
88			}
89			});
90
91
92
93
94	torben	239	findViewById(R.id.header).setOnClickListener( mapLauncher );
95	torben	237
96	torben	557	int distance = station.getDistance();
97	torben	742	if (distance != 0) {
98			NumberFormat format = NumberFormat.getNumberInstance();
99			format.setMaximumFractionDigits(1);
100			format.setMinimumFractionDigits(1);
101	torben	575
102	torben	742	((TextView) findViewById(R.id.stationDistance)).setText( format.format((double)distance/1000.0) + " km." );
103			} else {
104			((TextView) findViewById(R.id.stationDistance)).setVisibility(View.GONE);
105			}
106
107	torben	552
108	torben	557	if (station.isRegional() == false && station.isSTrain() == false) {
109	torben	552	getListView().setVisibility( View.GONE );
110			findViewById(R.id.metroonly).setVisibility( View.VISIBLE );
111	torben	835	departureBtn.setVisibility( View.GONE );
112			arrivalBtn.setVisibility(View.GONE);
113	torben	552
114	torben	257	} else {
115	torben	552	provider = ProviderFactory.getDepartureProvider();
116
117			if (savedInstanceState == null) {
118			startDepartureFetcher();
119			} else {
120	torben	981	departures = (DepartureBean) savedInstanceState.getSerializable("departures");
121			adapter.setDepartures(departures.entries);
122	torben	552	selectedItemId = savedInstanceState.getInt("selectedItemId");
123			}
124	torben	257	}
125	torben	237	}
126
127	torben	243	@Override
128			public void onSaveInstanceState(Bundle outState)
129			{
130	torben	257	if (pgDialog != null && pgDialog.isShowing())
131			dismissDialog(DLG_PROGRESS);
132	torben	362
133	torben	257	outState.putInt("selectedItemId", selectedItemId);
134
135	torben	981	outState.putSerializable("departures", departures);
136	torben	243	}
137	torben	918
138
139	torben	243
140	torben	237	@Override
141	torben	918	protected void onDestroy() {
142			super.onDestroy();
143
144			if (fetcher != null) {
145			fetcher.cancel(true);
146			}
147			}
148
149			@Override
150	torben	237	protected void onListItemClick(ListView l, View v, int position, long id) {
151			super.onListItemClick(l, v, position, id);
152	torben	362
153			selectedItemId = position;
154	torben	364
155	torben	981	DepartureEntry dep = departures.entries.get(selectedItemId);
156	torben	237
157	torben	362	Intent intent = new Intent(this, TimetableList.class);
158	torben	364	intent.putExtra("departure", dep);
159	torben	362
160			startActivity(intent);
161
162	torben	237	}
163
164
165			@Override
166			protected void onPrepareDialog(int id, Dialog dialog) {
167			super.onPrepareDialog(id, dialog);
168	torben	257
169	torben	237	switch (id) {
170			case DLG_PROGRESS:
171			pgDialog = (ProgressDialog) dialog;
172	torben	835	int messageId = arrival == false ? departurelist_fetchdepartures : departurelist_fetcharrivals;
173			pgDialog.setMessage( getString(messageId) );
174	torben	237	break;
175			}
176			}
177
178			@Override
179			protected Dialog onCreateDialog(int id) {
180			switch (id) {
181			case DLG_PROGRESS:
182	torben	835
183	torben	237	ProgressDialog dlg = new ProgressDialog(this);
184			dlg.setCancelable(true);
185	torben	362	return dlg;
186	torben	237	default:
187			return super.onCreateDialog(id);
188			}
189			}
190	torben	336
191			void startDepartureFetcher() {
192			showDialog(DLG_PROGRESS);
193			fetcher = new DepartureFetcher();
194	torben	557	fetcher.execute(station.getId());
195	torben	336	}
196	torben	316
197	torben	237	class DialogDismisser implements View.OnClickListener {
198
199			Dialog dlg;
200			public DialogDismisser(Dialog d) {
201			dlg = d;
202			}
203
204			@Override
205			public void onClick(View v) {
206			if (dlg.isShowing())
207			dlg.dismiss();
208	torben	365	}
209			}
210	torben	238
211	torben	239	View.OnClickListener mapLauncher = new View.OnClickListener() {
212			@Override
213	torben	557	public void onClick(View v) {
214			Uri uri = Uri.parse("geo:" + station.getLatitude() + "," + station.getLongitude());
215	torben	239	startActivity( new Intent(Intent.ACTION_VIEW, uri));
216			}
217			};
218	torben	336
219
220	torben	238
221	torben	310	class DepartureFetcher extends AsyncTask<Integer, Void, Void> {
222	torben	238
223	torben	319	boolean success;
224	torben	365
225	torben	238	@Override
226			protected void onPostExecute(Void result) {
227			super.onPostExecute(result);
228
229	torben	336
230	torben	238	pgDialog.dismiss();
231
232	torben	319	if (success) {
233	torben	917	DepartureList.this.getListView().setVisibility(View.GONE); //Experimental, inspired by http://osdir.com/ml/Android-Developers/2010-04/msg01198.html
234	torben	981	adapter.setDepartures(departures.entries);
235	torben	917	DepartureList.this.getListView().setVisibility(View.VISIBLE);
236
237	torben	981	if (departures.entries.size() == 0) {
238	torben	906	MessageBox.showMessage(DepartureList.this, "No departures found", true);
239	torben	319	}
240			} else { // communication or parse error
241	torben	336	AlertDialog.Builder builder = new AlertDialog.Builder(DepartureList.this);
242			builder.setMessage("Error finding departures");
243			builder.setCancelable(true);
244	torben	561	builder.setPositiveButton(getString(generic_retry), new DialogInterface.OnClickListener() {
245	torben	336	public void onClick(DialogInterface dialog, int id) {
246			dialog.dismiss();
247			startDepartureFetcher();
248
249			}
250			});
251	torben	561	builder.setNegativeButton(getString(generic_cancel), new DialogInterface.OnClickListener() {
252	torben	336	public void onClick(DialogInterface dialog, int id) {
253			dialog.dismiss();
254	torben	843	DepartureList.this.finish();
255	torben	336	}
256	torben	630	});
257
258			try {
259			builder.show();
260			} catch (android.view.WindowManager.BadTokenException e) {
261			Log.i("DepartureList", "BadTokenException"); // this can happen if the user switched away from this activity, while doInBackground was running
262			}
263	torben	319	}
264	torben	238	}
265
266			@Override
267	torben	310	protected Void doInBackground(Integer... params) {
268	torben	835	success = provider.lookupDepartures(params[0], DepartureList.this.arrival);
269			departures = provider.getDepartures(params[0], DepartureList.this.arrival);
270	torben	238	return null;
271			}
272
273			}
274	torben	237	}