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	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.View;
23	import android.view.View.OnClickListener;
24	import android.widget.Button;
25	import android.widget.ListView;
26	import android.widget.TextView;
27	import dk.thoerup.traininfo.provider.DepartureProvider;
28	import dk.thoerup.traininfo.provider.ProviderFactory;
29	import dk.thoerup.traininfo.util.MessageBox;
30
31	public class DepartureList extends ListActivity {
32
33	public static final int DLG_PROGRESS = 1;
34
35
36	DepartureListAdapter adapter;
37	DepartureProvider provider;
38	DepartureBean departures;
39
40	int selectedItemId;
41	//DepartureBean currentDeparture;
42
43	ProgressDialog pgDialog;
44
45	DepartureFetcher fetcher;
46
47	StationBean station;
48
49	boolean arrival = false;
50
51
52	@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
62	station = (StationBean) launchedBy.getSerializableExtra("stationbean");
63
64	((TextView) findViewById(R.id.stationName)).setText( station.getName() );
65
66
67	((TextView) findViewById(R.id.stationAddr)).setText( station.getAddress() );
68
69	final Button departureBtn = (Button) findViewById(R.id.departurebtn);
70	final Button arrivalBtn = (Button) findViewById(R.id.arrivalbtn);
71
72	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	findViewById(R.id.header).setOnClickListener( mapLauncher );
95
96	int distance = station.getDistance();
97	if (distance != 0) {
98	NumberFormat format = NumberFormat.getNumberInstance();
99	format.setMaximumFractionDigits(1);
100	format.setMinimumFractionDigits(1);
101
102	((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
108	if (station.isRegional() == false && station.isSTrain() == false) {
109	getListView().setVisibility( View.GONE );
110	findViewById(R.id.metroonly).setVisibility( View.VISIBLE );
111	departureBtn.setVisibility( View.GONE );
112	arrivalBtn.setVisibility(View.GONE);
113
114	} else {
115	provider = ProviderFactory.getDepartureProvider();
116
117	if (savedInstanceState == null) {
118	startDepartureFetcher();
119	} else {
120	departures = (DepartureBean) savedInstanceState.getSerializable("departures");
121	adapter.setDepartures(departures.entries);
122	selectedItemId = savedInstanceState.getInt("selectedItemId");
123	}
124	}
125	}
126
127	@Override
128	public void onSaveInstanceState(Bundle outState)
129	{
130	if (pgDialog != null && pgDialog.isShowing())
131	dismissDialog(DLG_PROGRESS);
132
133	outState.putInt("selectedItemId", selectedItemId);
134
135	outState.putSerializable("departures", departures);
136	}
137
138
139
140	@Override
141	protected void onDestroy() {
142	super.onDestroy();
143
144	if (fetcher != null) {
145	fetcher.cancel(true);
146	}
147	}
148
149	@Override
150	protected void onListItemClick(ListView l, View v, int position, long id) {
151	super.onListItemClick(l, v, position, id);
152
153	selectedItemId = position;
154
155	DepartureEntry dep = departures.entries.get(selectedItemId);
156
157	Intent intent = new Intent(this, TimetableList.class);
158	intent.putExtra("departure", dep);
159
160	startActivity(intent);
161
162	}
163
164
165	@Override
166	protected void onPrepareDialog(int id, Dialog dialog) {
167	super.onPrepareDialog(id, dialog);
168
169	switch (id) {
170	case DLG_PROGRESS:
171	pgDialog = (ProgressDialog) dialog;
172	int messageId = arrival == false ? departurelist_fetchdepartures : departurelist_fetcharrivals;
173	pgDialog.setMessage( getString(messageId) );
174	break;
175	}
176	}
177
178	@Override
179	protected Dialog onCreateDialog(int id) {
180	switch (id) {
181	case DLG_PROGRESS:
182
183	ProgressDialog dlg = new ProgressDialog(this);
184	dlg.setCancelable(true);
185	return dlg;
186	default:
187	return super.onCreateDialog(id);
188	}
189	}
190
191	void startDepartureFetcher() {
192	showDialog(DLG_PROGRESS);
193	fetcher = new DepartureFetcher();
194	fetcher.execute(station.getId());
195	}
196
197	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	}
209	}
210
211	View.OnClickListener mapLauncher = new View.OnClickListener() {
212	@Override
213	public void onClick(View v) {
214	Uri uri = Uri.parse("geo:" + station.getLatitude() + "," + station.getLongitude());
215	startActivity( new Intent(Intent.ACTION_VIEW, uri));
216	}
217	};
218
219
220
221	class DepartureFetcher extends AsyncTask<Integer, Void, Void> {
222
223	boolean success;
224
225	@Override
226	protected void onPostExecute(Void result) {
227	super.onPostExecute(result);
228
229
230	pgDialog.dismiss();
231
232	if (success) {
233	DepartureList.this.getListView().setVisibility(View.GONE); //Experimental, inspired by http://osdir.com/ml/Android-Developers/2010-04/msg01198.html
234	adapter.setDepartures(departures.entries);
235	DepartureList.this.getListView().setVisibility(View.VISIBLE);
236
237	if (departures.entries.size() == 0) {
238	MessageBox.showMessage(DepartureList.this, "No departures found", true);
239	}
240	} else { // communication or parse error
241	AlertDialog.Builder builder = new AlertDialog.Builder(DepartureList.this);
242	builder.setMessage("Error finding departures");
243	builder.setCancelable(true);
244	builder.setPositiveButton(getString(generic_retry), new DialogInterface.OnClickListener() {
245	public void onClick(DialogInterface dialog, int id) {
246	dialog.dismiss();
247	startDepartureFetcher();
248
249	}
250	});
251	builder.setNegativeButton(getString(generic_cancel), new DialogInterface.OnClickListener() {
252	public void onClick(DialogInterface dialog, int id) {
253	dialog.dismiss();
254	DepartureList.this.finish();
255	}
256	});
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	}
264	}
265
266	@Override
267	protected Void doInBackground(Integer... params) {
268	success = provider.lookupDepartures(params[0], DepartureList.this.arrival);
269	departures = provider.getDepartures(params[0], DepartureList.this.arrival);
270	return null;
271	}
272
273	}
274	}