thoerup/traininfo/TimetableList.java

package dk.thoerup.traininfo;


import static dk.thoerup.traininfo.R.string.generic_cancel;
import static dk.thoerup.traininfo.R.string.generic_retry;
import static dk.thoerup.traininfo.R.string.timetablelist_fetchdata;
import static dk.thoerup.traininfo.R.string.timetablelist_fetcherror;
import static dk.thoerup.traininfo.R.string.timetablelist_nodata;

import java.util.regex.Pattern;

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.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.ListView;
import android.widget.TextView;
import dk.thoerup.android.traininfo.common.DepartureEntry;
import dk.thoerup.android.traininfo.common.StationBean.StationEntry;
import dk.thoerup.android.traininfo.common.TimetableBean;
import dk.thoerup.android.traininfo.common.TimetableEntry;
import dk.thoerup.traininfo.provider.ProviderFactory;
import dk.thoerup.traininfo.provider.TimetableProvider;
import dk.thoerup.traininfo.util.MessageBox;

public class TimetableList extends ListActivity {
        
        private static final int DLG_PROGRESS = 8000;
        DepartureEntry departure;
        TimetableListAdapter adapter;
        TimetableFetcher fetcher;
        TimetableBean timetables;
        int commFailCounter = 0;
        
        TimetableProvider provider; 


        @Override
        protected void onCreate(Bundle savedInstanceState) {
                super.onCreate(savedInstanceState);
                setContentView(R.layout.timetablelist);
                
                provider = ProviderFactory.getTimetableProvider();
                
                adapter = new TimetableListAdapter(this);               
                setListAdapter(adapter);


                Intent launchedBy = getIntent();
                departure = (DepartureEntry) launchedBy.getSerializableExtra("departure");
                
                ((TextView)findViewById(R.id.Train)).setText(departure.getTrainNumber());
                                
                ((TextView)findViewById(R.id.Location)).setText(departure.getLocation());               
                ((TextView)findViewById(R.id.Updated)).setText( getLastUpdateString( departure.getUpdated() ));
                
                String status = departure.getStatus() != null ? departure.getStatus() : "";             
                if ( Pattern.matches("[0-9]+.+min", status) ) {
                        status += " " + this.getString(R.string.departurebean_delayed);
                }
                String note = departure.getNote() != null ? departure.getNote() : "";
                note = note.replace("Aflyst", this.getString(R.string.timetablelist_cancelled) );
                note = note.replace("Kører kun til", this.getString(R.string.timetablelist_goesonlyto) );
                note = note.replace("Afgår fra", this.getString(R.string.timetablelist_startsat) );
                note = note.replace("Erstattet af", this.getString(R.string.timetablelist_replacedby) );
                note = note.replace("Eksterne forhold", this.getString(R.string.timetablelist_externalconditions) );
                note = note.replace("Teknisk fejl på et signal", this.getString(R.string.timetablelist_technicalerroronsignal) );
                note = note.replace("Materielforhold", this.getString(R.string.timetablelist_equipmentcircumstances) );
                
                // TODO: missing translations:
                // * Forventet rettidig afgang fra <station>
                // * Forventet rettidig afgang.
                
                ((TextView)findViewById(R.id.Status)).setText(status);
                ((TextView)findViewById(R.id.Note)).setText(note);
                                                        
                
                ProviderFactory.purgeOldEntries(); //cleanup before fetching more data
                
                if (savedInstanceState == null) {
                        startTimetableFetcher();
                } else {
                        timetables = (TimetableBean) savedInstanceState.getSerializable("timetables");
                        adapter.setTimetable(timetables);
                }
        }

        @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);

                TimetableEntry tt = timetables.entries.get(position);
                
                StationEntry station = new StationEntry();
                station.setName( tt.getStation() );
                station.setId( tt.getStationId() );
                station.setIsRegional(true);
                
                
                Intent intent = new Intent(this, DepartureList.class);
                intent.putExtra("stationbean", station);
                startActivity(intent);
                
        }
    

        @Override 
    public void onSaveInstanceState(Bundle outState) 
    {           
        dismissDialog(DLG_PROGRESS);
        outState.putSerializable("timetables", (TimetableBean) timetables);
    }

        
        @Override
        protected void onPrepareDialog(int id, Dialog dialog) {
                super.onPrepareDialog(id, dialog);
                
                switch (id) {
                case DLG_PROGRESS:
                        //pgDialog = (ProgressDialog) dialog;
                        break;
                }
        }
        
        @Override
        protected Dialog onCreateDialog(int id) {
                switch (id) {
                case DLG_PROGRESS:
                        ProgressDialog dlg = new ProgressDialog(this);                  
                        dlg.setMessage( getString(timetablelist_fetchdata) );
                        dlg.setCancelable(true);
                        return dlg;                     
                default:
                        return super.onCreateDialog(id);                
                }
        }

        void startTimetableFetcher() {
                showDialog(DLG_PROGRESS);
                fetcher = new TimetableFetcher(); 
                fetcher.execute(departure.getType(), departure.getTrainNumber());
        }
        
        
        public String getLastUpdateString(int lastUpdate) {
                String minutes = this.getString(R.string.departurebean_minutes);
                String unknown = this.getString(R.string.departurebean_unknown);
                switch (lastUpdate) {
                case 1:
                        return "<3 " + minutes;
                case 2:
                        return "3-10 " + minutes;
                case 3:
                        return ">3 " + minutes;
                case 4:
                        return unknown;
                default:
                        return "";
                }
        }

        
        class TimetableFetcher extends AsyncTask<String,Void,Void> {
                
                
                @Override
                protected void onPostExecute(Void result) {
                        super.onPostExecute(result);
                        dismissDialog(DLG_PROGRESS);
        
                        //TODO: differentiate between a communication error and a downed bane.dk site  
                        if (timetables != null) {
                                commFailCounter = 0;
                                TimetableList.this.getListView().invalidateViews();
                                adapter.setTimetable(timetables);
                                if (timetables.entries.size() == 0) {
                                        MessageBox.showMessage(TimetableList.this, getString(timetablelist_nodata), true);
                                }
                        } else { // communication or parse error
                                commFailCounter++;
                                AlertDialog.Builder builder = new AlertDialog.Builder(TimetableList.this);                                              
                                builder.setMessage(getString(timetablelist_fetcherror));
                                builder.setCancelable(true);
                                if (commFailCounter < 3) {
                                        builder.setPositiveButton(getString(generic_retry), new DialogInterface.OnClickListener() {
                                                public void onClick(DialogInterface dialog, int id) {
                                                        dialog.dismiss();
                                                        startTimetableFetcher();
                                                        
                                                }
                                        });
                                }
                                builder.setNegativeButton(getString(generic_cancel), new DialogInterface.OnClickListener() {
                                        public void onClick(DialogInterface dialog, int id) {
                                                dialog.dismiss();
                                                TimetableList.this.finish();
                                        }                                                       
                                });
                                
                                try {
                                        builder.show();
                                } catch (android.view.WindowManager.BadTokenException e) {                                      
                                        Log.i("TimetableList", "BadTokenException"); // this can happen if the user switched away from this activity, while doInBackground was running
                                }
                                                                
                        }
                        
                }
                
                @Override
                protected Void doInBackground(String... arg0) {
                        String type = arg0[0];
                        String trainID = arg0[1];
                        timetables = provider.lookupTimetable(type, trainID);
                        
                        return null;
                }
                
        }
}
1	torben	362	package dk.thoerup.traininfo;
2
3	torben	365
4	torben	630	import static dk.thoerup.traininfo.R.string.generic_cancel;
5			import static dk.thoerup.traininfo.R.string.generic_retry;
6			import static dk.thoerup.traininfo.R.string.timetablelist_fetchdata;
7			import static dk.thoerup.traininfo.R.string.timetablelist_fetcherror;
8			import static dk.thoerup.traininfo.R.string.timetablelist_nodata;
9	torben	1257
10			import java.util.regex.Pattern;
11
12	torben	365	import android.app.AlertDialog;
13			import android.app.Dialog;
14	torben	839	import android.app.ListActivity;
15	torben	365	import android.app.ProgressDialog;
16			import android.content.DialogInterface;
17	torben	364	import android.content.Intent;
18	torben	365	import android.os.AsyncTask;
19	torben	362	import android.os.Bundle;
20	torben	630	import android.util.Log;
21	torben	840	import android.view.View;
22			import android.widget.ListView;
23	torben	362	import android.widget.TextView;
24	torben	1066	import dk.thoerup.android.traininfo.common.DepartureEntry;
25	torben	1257	import dk.thoerup.android.traininfo.common.StationBean.StationEntry;
26	torben	1066	import dk.thoerup.android.traininfo.common.TimetableBean;
27			import dk.thoerup.android.traininfo.common.TimetableEntry;
28	torben	365	import dk.thoerup.traininfo.provider.ProviderFactory;
29			import dk.thoerup.traininfo.provider.TimetableProvider;
30			import dk.thoerup.traininfo.util.MessageBox;
31	torben	362
32	torben	839	public class TimetableList extends ListActivity {
33	torben	364
34	torben	365	private static final int DLG_PROGRESS = 8000;
35	torben	981	DepartureEntry departure;
36	torben	365	TimetableListAdapter adapter;
37			TimetableFetcher fetcher;
38	torben	1066	TimetableBean timetables;
39	torben	1017	int commFailCounter = 0;
40	torben	364
41	torben	365	TimetableProvider provider;
42
43	torben	1078
44	torben	362	@Override
45			protected void onCreate(Bundle savedInstanceState) {
46			super.onCreate(savedInstanceState);
47			setContentView(R.layout.timetablelist);
48	torben	364
49	torben	365	provider = ProviderFactory.getTimetableProvider();
50
51	torben	839	adapter = new TimetableListAdapter(this);
52			setListAdapter(adapter);
53	torben	366
54	torben	839
55	torben	366
56	torben	364	Intent launchedBy = getIntent();
57	torben	981	departure = (DepartureEntry) launchedBy.getSerializableExtra("departure");
58	torben	364
59			((TextView)findViewById(R.id.Train)).setText(departure.getTrainNumber());
60	torben	1257
61			((TextView)findViewById(R.id.Location)).setText(departure.getLocation());
62	torben	1066	((TextView)findViewById(R.id.Updated)).setText( getLastUpdateString( departure.getUpdated() ));
63	torben	1257
64			String status = departure.getStatus() != null ? departure.getStatus() : "";
65			if ( Pattern.matches("[0-9]+.+min", status) ) {
66			status += " " + this.getString(R.string.departurebean_delayed);
67			}
68			String note = departure.getNote() != null ? departure.getNote() : "";
69			note = note.replace("Aflyst", this.getString(R.string.timetablelist_cancelled) );
70			note = note.replace("Kører kun til", this.getString(R.string.timetablelist_goesonlyto) );
71	torben	1258	note = note.replace("Afgår fra", this.getString(R.string.timetablelist_startsat) );
72			note = note.replace("Erstattet af", this.getString(R.string.timetablelist_replacedby) );
73			note = note.replace("Eksterne forhold", this.getString(R.string.timetablelist_externalconditions) );
74			note = note.replace("Teknisk fejl på et signal", this.getString(R.string.timetablelist_technicalerroronsignal) );
75	torben	1260	note = note.replace("Materielforhold", this.getString(R.string.timetablelist_equipmentcircumstances) );
76	torben	1257
77	torben	1265	// TODO: missing translations:
78			// * Forventet rettidig afgang fra <station>
79			// * Forventet rettidig afgang.
80
81	torben	1257	((TextView)findViewById(R.id.Status)).setText(status);
82			((TextView)findViewById(R.id.Note)).setText(note);
83	torben	1260
84	torben	1257
85	torben	1028	ProviderFactory.purgeOldEntries(); //cleanup before fetching more data
86	torben	365
87			if (savedInstanceState == null) {
88			startTimetableFetcher();
89			} else {
90	torben	1066	timetables = (TimetableBean) savedInstanceState.getSerializable("timetables");
91	torben	365	adapter.setTimetable(timetables);
92			}
93	torben	362	}
94	torben	918
95			@Override
96			protected void onDestroy() {
97			super.onDestroy();
98
99			if (fetcher != null) {
100			fetcher.cancel(true);
101			}
102			}
103	torben	365
104	torben	840	@Override
105			protected void onListItemClick(ListView l, View v, int position, long id) {
106			super.onListItemClick(l, v, position, id);
107
108	torben	1066	TimetableEntry tt = timetables.entries.get(position);
109	torben	840
110	torben	1066	StationEntry station = new StationEntry();
111	torben	840	station.setName( tt.getStation() );
112			station.setId( tt.getStationId() );
113	torben	1066	station.setIsRegional(true);
114	torben	840
115	torben	1066
116	torben	840	Intent intent = new Intent(this, DepartureList.class);
117			intent.putExtra("stationbean", station);
118			startActivity(intent);
119
120			}
121
122
123
124			@Override
125	torben	365	public void onSaveInstanceState(Bundle outState)
126			{
127			dismissDialog(DLG_PROGRESS);
128	torben	1066	outState.putSerializable("timetables", (TimetableBean) timetables);
129	torben	365	}
130	torben	364
131	torben	365
132			@Override
133			protected void onPrepareDialog(int id, Dialog dialog) {
134			super.onPrepareDialog(id, dialog);
135
136			switch (id) {
137			case DLG_PROGRESS:
138			//pgDialog = (ProgressDialog) dialog;
139			break;
140			}
141			}
142
143			@Override
144			protected Dialog onCreateDialog(int id) {
145			switch (id) {
146			case DLG_PROGRESS:
147	torben	561	ProgressDialog dlg = new ProgressDialog(this);
148			dlg.setMessage( getString(timetablelist_fetchdata) );
149	torben	365	dlg.setCancelable(true);
150			return dlg;
151			default:
152			return super.onCreateDialog(id);
153			}
154			}
155
156			void startTimetableFetcher() {
157			showDialog(DLG_PROGRESS);
158			fetcher = new TimetableFetcher();
159	torben	699	fetcher.execute(departure.getType(), departure.getTrainNumber());
160	torben	365	}
161
162	torben	1066
163			public String getLastUpdateString(int lastUpdate) {
164			String minutes = this.getString(R.string.departurebean_minutes);
165			String unknown = this.getString(R.string.departurebean_unknown);
166			switch (lastUpdate) {
167			case 1:
168			return "<3 " + minutes;
169			case 2:
170			return "3-10 " + minutes;
171			case 3:
172			return ">3 " + minutes;
173			case 4:
174			return unknown;
175			default:
176			return "";
177			}
178			}
179
180
181	torben	365	class TimetableFetcher extends AsyncTask<String,Void,Void> {
182
183
184			@Override
185			protected void onPostExecute(Void result) {
186			super.onPostExecute(result);
187			dismissDialog(DLG_PROGRESS);
188
189	torben	1263	//TODO: differentiate between a communication error and a downed bane.dk site
190	torben	1007	if (timetables != null) {
191	torben	1017	commFailCounter = 0;
192	torben	917	TimetableList.this.getListView().invalidateViews();
193	torben	365	adapter.setTimetable(timetables);
194	torben	1066	if (timetables.entries.size() == 0) {
195	torben	906	MessageBox.showMessage(TimetableList.this, getString(timetablelist_nodata), true);
196	torben	365	}
197			} else { // communication or parse error
198	torben	1017	commFailCounter++;
199	torben	365	AlertDialog.Builder builder = new AlertDialog.Builder(TimetableList.this);
200	torben	561	builder.setMessage(getString(timetablelist_fetcherror));
201	torben	365	builder.setCancelable(true);
202	torben	1017	if (commFailCounter < 3) {
203			builder.setPositiveButton(getString(generic_retry), new DialogInterface.OnClickListener() {
204			public void onClick(DialogInterface dialog, int id) {
205			dialog.dismiss();
206			startTimetableFetcher();
207
208			}
209			});
210			}
211	torben	561	builder.setNegativeButton(getString(generic_cancel), new DialogInterface.OnClickListener() {
212	torben	365	public void onClick(DialogInterface dialog, int id) {
213			dialog.dismiss();
214	torben	843	TimetableList.this.finish();
215	torben	365	}
216	torben	630	});
217
218			try {
219			builder.show();
220			} catch (android.view.WindowManager.BadTokenException e) {
221			Log.i("TimetableList", "BadTokenException"); // this can happen if the user switched away from this activity, while doInBackground was running
222			}
223
224	torben	365	}
225
226			}
227
228			@Override
229			protected Void doInBackground(String... arg0) {
230	torben	699	String type = arg0[0];
231			String trainID = arg0[1];
232	torben	1007	timetables = provider.lookupTimetable(type, trainID);
233	torben	365
234			return null;
235			}
236
237			}
238	torben	362	}