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	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	import java.util.ArrayList;
11	import java.util.List;
12
13	import android.app.AlertDialog;
14	import android.app.Dialog;
15	import android.app.ListActivity;
16	import android.app.ProgressDialog;
17	import android.content.DialogInterface;
18	import android.content.Intent;
19	import android.net.Uri;
20	import android.os.AsyncTask;
21	import android.os.Bundle;
22	import android.util.Log;
23	import android.view.View;
24	import android.view.View.OnClickListener;
25	import android.widget.Button;
26	import android.widget.ListView;
27	import android.widget.TextView;
28	import dk.thoerup.traininfo.provider.DepartureProvider;
29	import dk.thoerup.traininfo.provider.ProviderFactory;
30	import dk.thoerup.traininfo.util.MessageBox;
31
32	public class DepartureList extends ListActivity {
33
34	public static final int DLG_PROGRESS = 1;
35
36
37	DepartureListAdapter adapter;
38	DepartureProvider provider;
39	List<DepartureBean> departures;
40
41	int selectedItemId;
42	//DepartureBean currentDeparture;
43
44	ProgressDialog pgDialog;
45
46	DepartureFetcher fetcher;
47
48	StationBean station;
49
50	boolean arrival = false;
51
52	@SuppressWarnings("unchecked")
53	@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
63	station = (StationBean) launchedBy.getSerializableExtra("stationbean");
64
65	((TextView) findViewById(R.id.stationName)).setText( station.getName() );
66
67
68	((TextView) findViewById(R.id.stationAddr)).setText( station.getAddress() );
69
70	final Button departureBtn = (Button) findViewById(R.id.departurebtn);
71	final Button arrivalBtn = (Button) findViewById(R.id.arrivalbtn);
72
73	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	findViewById(R.id.header).setOnClickListener( mapLauncher );
96
97	int distance = station.getDistance();
98	if (distance != 0) {
99	NumberFormat format = NumberFormat.getNumberInstance();
100	format.setMaximumFractionDigits(1);
101	format.setMinimumFractionDigits(1);
102
103	((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
109	if (station.isRegional() == false && station.isSTrain() == false) {
110	getListView().setVisibility( View.GONE );
111	findViewById(R.id.metroonly).setVisibility( View.VISIBLE );
112	departureBtn.setVisibility( View.GONE );
113	arrivalBtn.setVisibility(View.GONE);
114
115	} else {
116	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	}
126	}
127
128	@Override
129	public void onSaveInstanceState(Bundle outState)
130	{
131	if (pgDialog != null && pgDialog.isShowing())
132	dismissDialog(DLG_PROGRESS);
133
134	outState.putInt("selectedItemId", selectedItemId);
135
136	outState.putSerializable("departures", (ArrayList<DepartureBean>) departures);
137	}
138
139
140
141	@Override
142	protected void onDestroy() {
143	super.onDestroy();
144
145	if (fetcher != null) {
146	fetcher.cancel(true);
147	}
148	}
149
150	@Override
151	protected void onListItemClick(ListView l, View v, int position, long id) {
152	super.onListItemClick(l, v, position, id);
153
154	selectedItemId = position;
155
156	DepartureBean dep = departures.get(selectedItemId);
157
158	Intent intent = new Intent(this, TimetableList.class);
159	intent.putExtra("departure", dep);
160
161	startActivity(intent);
162
163	}
164
165
166	@Override
167	protected void onPrepareDialog(int id, Dialog dialog) {
168	super.onPrepareDialog(id, dialog);
169
170	switch (id) {
171	case DLG_PROGRESS:
172	pgDialog = (ProgressDialog) dialog;
173	int messageId = arrival == false ? departurelist_fetchdepartures : departurelist_fetcharrivals;
174	pgDialog.setMessage( getString(messageId) );
175	break;
176	}
177	}
178
179	@Override
180	protected Dialog onCreateDialog(int id) {
181	switch (id) {
182	case DLG_PROGRESS:
183
184	ProgressDialog dlg = new ProgressDialog(this);
185	dlg.setCancelable(true);
186	return dlg;
187	default:
188	return super.onCreateDialog(id);
189	}
190	}
191
192	void startDepartureFetcher() {
193	showDialog(DLG_PROGRESS);
194	fetcher = new DepartureFetcher();
195	fetcher.execute(station.getId());
196	}
197
198	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	}
210	}
211
212	View.OnClickListener mapLauncher = new View.OnClickListener() {
213	@Override
214	public void onClick(View v) {
215	Uri uri = Uri.parse("geo:" + station.getLatitude() + "," + station.getLongitude());
216	startActivity( new Intent(Intent.ACTION_VIEW, uri));
217	}
218	};
219
220
221
222	class DepartureFetcher extends AsyncTask<Integer, Void, Void> {
223
224	boolean success;
225
226	@Override
227	protected void onPostExecute(Void result) {
228	super.onPostExecute(result);
229
230
231	pgDialog.dismiss();
232
233	if (success) {
234	DepartureList.this.getListView().setVisibility(View.GONE); //Experimental, inspired by http://osdir.com/ml/Android-Developers/2010-04/msg01198.html
235	adapter.setDepartures(departures);
236	DepartureList.this.getListView().setVisibility(View.VISIBLE);
237
238	if (departures.size() == 0) {
239	MessageBox.showMessage(DepartureList.this, "No departures found", true);
240	}
241	} else { // communication or parse error
242	AlertDialog.Builder builder = new AlertDialog.Builder(DepartureList.this);
243	builder.setMessage("Error finding departures");
244	builder.setCancelable(true);
245	builder.setPositiveButton(getString(generic_retry), new DialogInterface.OnClickListener() {
246	public void onClick(DialogInterface dialog, int id) {
247	dialog.dismiss();
248	startDepartureFetcher();
249
250	}
251	});
252	builder.setNegativeButton(getString(generic_cancel), new DialogInterface.OnClickListener() {
253	public void onClick(DialogInterface dialog, int id) {
254	dialog.dismiss();
255	DepartureList.this.finish();
256	}
257	});
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	}
265	}
266
267	@Override
268	protected Void doInBackground(Integer... params) {
269	success = provider.lookupDepartures(params[0], DepartureList.this.arrival);
270	departures = provider.getDepartures(params[0], DepartureList.this.arrival);
271	return null;
272	}
273
274	}
275	}