thoerup/traininfo/TimetableList.java

package dk.thoerup.traininfo;


import java.util.ArrayList;
import java.util.List;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.widget.ListView;
import android.widget.TextView;
import dk.thoerup.traininfo.provider.ProviderFactory;
import dk.thoerup.traininfo.provider.TimetableProvider;
import dk.thoerup.traininfo.util.MessageBox;

public class TimetableList extends Activity {
        
        private static final int DLG_PROGRESS = 8000;
        DepartureBean departure;
        TimetableListAdapter adapter;
        TimetableFetcher fetcher;
        List<TimetableBean> timetables;
        
        TimetableProvider provider; 

        @SuppressWarnings("unchecked")
        @Override
        protected void onCreate(Bundle savedInstanceState) {
                super.onCreate(savedInstanceState);
                setContentView(R.layout.timetablelist);
                
                provider = ProviderFactory.getTimetableProvider();
                
                adapter = new TimetableListAdapter(this);
                
                ListView lv = (ListView) findViewById(R.id.List);
                lv.setAdapter(adapter);

                
                Intent launchedBy = getIntent();
                departure = (DepartureBean) launchedBy.getSerializableExtra("departure");
                
                ((TextView)findViewById(R.id.Train)).setText(departure.getTrainNumber());
                ((TextView)findViewById(R.id.Status)).setText(departure.getStatus());
                ((TextView)findViewById(R.id.Location)).setText(departure.getLocation());
                ((TextView)findViewById(R.id.Note)).setText(departure.getNote());
                ((TextView)findViewById(R.id.Updated)).setText(departure.getLastUpdateString());
                                                
                
                if (savedInstanceState == null) {
                        startTimetableFetcher();
                } else {
                        timetables = (List<TimetableBean>) savedInstanceState.getSerializable("timetables");
                        adapter.setTimetable(timetables);
                }
        }
        
    @Override 
    public void onSaveInstanceState(Bundle outState) 
    {           
        dismissDialog(DLG_PROGRESS);
        outState.putSerializable("timetables", (ArrayList<TimetableBean>) timetables);
    }

/*              case DLG_DETAILS:
                        DepartureBean currentDeparture = departures.get(selectedItemId);
                        ((TextView)dialog.findViewById(R.id.Time)).setText(currentDeparture.getTime());
                        ((TextView)dialog.findViewById(R.id.Train)).setText(currentDeparture.getTrainNumber());
                        ((TextView)dialog.findViewById(R.id.Destination)).setText( currentDeparture.getDestination());
                        ((TextView)dialog.findViewById(R.id.Origin)).setText(currentDeparture.getOrigin());
                        ((TextView)dialog.findViewById(R.id.Location)).setText(currentDeparture.getLocation());
                        ((TextView)dialog.findViewById(R.id.Updated)).setText(currentDeparture.getLastUpdateString());
                        ((TextView)dialog.findViewById(R.id.Status)).setText(currentDeparture.getStatus());
                        ((TextView)dialog.findViewById(R.id.Note)).setText(currentDeparture.getNote());
                        detailsDialog = dialog;
                        break;

 */
        
        @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("Fetch timetable data");
                        dlg.setCancelable(true);
                        return dlg;                     
                default:
                        return super.onCreateDialog(id);                
                }
        }

        void startTimetableFetcher() {
                showDialog(DLG_PROGRESS);
                fetcher = new TimetableFetcher(); 
                fetcher.execute(departure.getTrainNumber());
        }
        
        class TimetableFetcher extends AsyncTask<String,Void,Void> {
                
                boolean success;
                
                @Override
                protected void onPostExecute(Void result) {
                        super.onPostExecute(result);
                        dismissDialog(DLG_PROGRESS);
        
                        
                        if (success) {
                                adapter.setTimetable(timetables);
                                if (timetables.size() == 0) {
                                        MessageBox.showMessage(TimetableList.this, "No timetable found");
                                }
                        } else { // communication or parse error
                                AlertDialog.Builder builder = new AlertDialog.Builder(TimetableList.this);                                              
                                builder.setMessage("Error finding departures");
                                builder.setCancelable(true);
                                builder.setPositiveButton("Retry", new DialogInterface.OnClickListener() {
                                        public void onClick(DialogInterface dialog, int id) {
                                                dialog.dismiss();
                                                startTimetableFetcher();
                                                
                                        }
                                });
                                builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
                                        public void onClick(DialogInterface dialog, int id) {
                                                dialog.dismiss();
                                        }                                                       
                                });                                                                                             
                                builder.show();                         
                        }
                        
                }
                
                @Override
                protected Void doInBackground(String... arg0) {
                        String trainID = arg0[0];
                        success = provider.lookupTimetable(trainID);
                        timetables = provider.getTimetable(trainID);
                        
                        return null;
                }
                
        }
}
1	package dk.thoerup.traininfo;
2
3
4	import java.util.ArrayList;
5	import java.util.List;
6
7	import android.app.Activity;
8	import android.app.AlertDialog;
9	import android.app.Dialog;
10	import android.app.ProgressDialog;
11	import android.content.DialogInterface;
12	import android.content.Intent;
13	import android.os.AsyncTask;
14	import android.os.Bundle;
15	import android.widget.ListView;
16	import android.widget.TextView;
17	import dk.thoerup.traininfo.provider.ProviderFactory;
18	import dk.thoerup.traininfo.provider.TimetableProvider;
19	import dk.thoerup.traininfo.util.MessageBox;
20
21	public class TimetableList extends Activity {
22
23	private static final int DLG_PROGRESS = 8000;
24	DepartureBean departure;
25	TimetableListAdapter adapter;
26	TimetableFetcher fetcher;
27	List<TimetableBean> timetables;
28
29	TimetableProvider provider;
30
31	@SuppressWarnings("unchecked")
32	@Override
33	protected void onCreate(Bundle savedInstanceState) {
34	super.onCreate(savedInstanceState);
35	setContentView(R.layout.timetablelist);
36
37	provider = ProviderFactory.getTimetableProvider();
38
39	adapter = new TimetableListAdapter(this);
40
41	ListView lv = (ListView) findViewById(R.id.List);
42	lv.setAdapter(adapter);
43
44
45	Intent launchedBy = getIntent();
46	departure = (DepartureBean) launchedBy.getSerializableExtra("departure");
47
48	((TextView)findViewById(R.id.Train)).setText(departure.getTrainNumber());
49	((TextView)findViewById(R.id.Status)).setText(departure.getStatus());
50	((TextView)findViewById(R.id.Location)).setText(departure.getLocation());
51	((TextView)findViewById(R.id.Note)).setText(departure.getNote());
52	((TextView)findViewById(R.id.Updated)).setText(departure.getLastUpdateString());
53
54
55	if (savedInstanceState == null) {
56	startTimetableFetcher();
57	} else {
58	timetables = (List<TimetableBean>) savedInstanceState.getSerializable("timetables");
59	adapter.setTimetable(timetables);
60	}
61	}
62
63	@Override
64	public void onSaveInstanceState(Bundle outState)
65	{
66	dismissDialog(DLG_PROGRESS);
67	outState.putSerializable("timetables", (ArrayList<TimetableBean>) timetables);
68	}
69
70	/* case DLG_DETAILS:
71	DepartureBean currentDeparture = departures.get(selectedItemId);
72	((TextView)dialog.findViewById(R.id.Time)).setText(currentDeparture.getTime());
73	((TextView)dialog.findViewById(R.id.Train)).setText(currentDeparture.getTrainNumber());
74	((TextView)dialog.findViewById(R.id.Destination)).setText( currentDeparture.getDestination());
75	((TextView)dialog.findViewById(R.id.Origin)).setText(currentDeparture.getOrigin());
76	((TextView)dialog.findViewById(R.id.Location)).setText(currentDeparture.getLocation());
77	((TextView)dialog.findViewById(R.id.Updated)).setText(currentDeparture.getLastUpdateString());
78	((TextView)dialog.findViewById(R.id.Status)).setText(currentDeparture.getStatus());
79	((TextView)dialog.findViewById(R.id.Note)).setText(currentDeparture.getNote());
80	detailsDialog = dialog;
81	break;
82
83	*/
84
85	@Override
86	protected void onPrepareDialog(int id, Dialog dialog) {
87	super.onPrepareDialog(id, dialog);
88
89	switch (id) {
90	case DLG_PROGRESS:
91	//pgDialog = (ProgressDialog) dialog;
92	break;
93	}
94	}
95
96	@Override
97	protected Dialog onCreateDialog(int id) {
98	switch (id) {
99	case DLG_PROGRESS:
100	ProgressDialog dlg = new ProgressDialog(this);
101	dlg.setMessage("Fetch timetable data");
102	dlg.setCancelable(true);
103	return dlg;
104	default:
105	return super.onCreateDialog(id);
106	}
107	}
108
109	void startTimetableFetcher() {
110	showDialog(DLG_PROGRESS);
111	fetcher = new TimetableFetcher();
112	fetcher.execute(departure.getTrainNumber());
113	}
114
115	class TimetableFetcher extends AsyncTask<String,Void,Void> {
116
117	boolean success;
118
119	@Override
120	protected void onPostExecute(Void result) {
121	super.onPostExecute(result);
122	dismissDialog(DLG_PROGRESS);
123
124
125	if (success) {
126	adapter.setTimetable(timetables);
127	if (timetables.size() == 0) {
128	MessageBox.showMessage(TimetableList.this, "No timetable found");
129	}
130	} else { // communication or parse error
131	AlertDialog.Builder builder = new AlertDialog.Builder(TimetableList.this);
132	builder.setMessage("Error finding departures");
133	builder.setCancelable(true);
134	builder.setPositiveButton("Retry", new DialogInterface.OnClickListener() {
135	public void onClick(DialogInterface dialog, int id) {
136	dialog.dismiss();
137	startTimetableFetcher();
138
139	}
140	});
141	builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
142	public void onClick(DialogInterface dialog, int id) {
143	dialog.dismiss();
144	}
145	});
146	builder.show();
147	}
148
149	}
150
151	@Override
152	protected Void doInBackground(String... arg0) {
153	String trainID = arg0[0];
154	success = provider.lookupTimetable(trainID);
155	timetables = provider.getTimetable(trainID);
156
157	return null;
158	}
159
160	}
161	}