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 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) {
                                adapter.setDepartures(departures);
                                if (departures.size() == 0) {
                                        MessageBox.showMessage(DepartureList.this, "No departures found");
                                }
                        } 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	@Override
140	protected void onListItemClick(ListView l, View v, int position, long id) {
141	super.onListItemClick(l, v, position, id);
142
143	selectedItemId = position;
144
145	DepartureBean dep = departures.get(selectedItemId);
146
147	Intent intent = new Intent(this, TimetableList.class);
148	intent.putExtra("departure", dep);
149
150	startActivity(intent);
151
152	}
153
154
155	@Override
156	protected void onPrepareDialog(int id, Dialog dialog) {
157	super.onPrepareDialog(id, dialog);
158
159	switch (id) {
160	case DLG_PROGRESS:
161	pgDialog = (ProgressDialog) dialog;
162	int messageId = arrival == false ? departurelist_fetchdepartures : departurelist_fetcharrivals;
163	pgDialog.setMessage( getString(messageId) );
164	break;
165	}
166	}
167
168	@Override
169	protected Dialog onCreateDialog(int id) {
170	switch (id) {
171	case DLG_PROGRESS:
172
173	ProgressDialog dlg = new ProgressDialog(this);
174	dlg.setCancelable(true);
175	return dlg;
176	default:
177	return super.onCreateDialog(id);
178	}
179	}
180
181	void startDepartureFetcher() {
182	showDialog(DLG_PROGRESS);
183	fetcher = new DepartureFetcher();
184	fetcher.execute(station.getId());
185	}
186
187	class DialogDismisser implements View.OnClickListener {
188
189	Dialog dlg;
190	public DialogDismisser(Dialog d) {
191	dlg = d;
192	}
193
194	@Override
195	public void onClick(View v) {
196	if (dlg.isShowing())
197	dlg.dismiss();
198	}
199	}
200
201	View.OnClickListener mapLauncher = new View.OnClickListener() {
202	@Override
203	public void onClick(View v) {
204	Uri uri = Uri.parse("geo:" + station.getLatitude() + "," + station.getLongitude());
205	startActivity( new Intent(Intent.ACTION_VIEW, uri));
206	}
207	};
208
209
210
211	class DepartureFetcher extends AsyncTask<Integer, Void, Void> {
212
213	boolean success;
214
215	@Override
216	protected void onPostExecute(Void result) {
217	super.onPostExecute(result);
218
219
220	pgDialog.dismiss();
221
222	if (success) {
223	adapter.setDepartures(departures);
224	if (departures.size() == 0) {
225	MessageBox.showMessage(DepartureList.this, "No departures found");
226	}
227	} else { // communication or parse error
228	AlertDialog.Builder builder = new AlertDialog.Builder(DepartureList.this);
229	builder.setMessage("Error finding departures");
230	builder.setCancelable(true);
231	builder.setPositiveButton(getString(generic_retry), new DialogInterface.OnClickListener() {
232	public void onClick(DialogInterface dialog, int id) {
233	dialog.dismiss();
234	startDepartureFetcher();
235
236	}
237	});
238	builder.setNegativeButton(getString(generic_cancel), new DialogInterface.OnClickListener() {
239	public void onClick(DialogInterface dialog, int id) {
240	dialog.dismiss();
241	DepartureList.this.finish();
242	}
243	});
244
245	try {
246	builder.show();
247	} catch (android.view.WindowManager.BadTokenException e) {
248	Log.i("DepartureList", "BadTokenException"); // this can happen if the user switched away from this activity, while doInBackground was running
249	}
250	}
251	}
252
253	@Override
254	protected Void doInBackground(Integer... params) {
255	success = provider.lookupDepartures(params[0], DepartureList.this.arrival);
256	departures = provider.getDepartures(params[0], DepartureList.this.arrival);
257	return null;
258	}
259
260	}
261	}