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.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.util.Log;
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(this));
                                                
                
                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);
    }

        
        @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());
        }
        
        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, getString(timetablelist_nodata));
                                }
                        } else { // communication or parse error
                                AlertDialog.Builder builder = new AlertDialog.Builder(TimetableList.this);                                              
                                builder.setMessage(getString(timetablelist_fetcherror));
                                builder.setCancelable(true);
                                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();
                                        }                                                       
                                });
                                
                                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];
                        success = provider.lookupTimetable(type, trainID);
                        timetables = provider.getTimetable(type, trainID);
                        
                        return null;
                }
                
        }
}
1	package dk.thoerup.traininfo;
2
3
4	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
10	import java.util.ArrayList;
11	import java.util.List;
12
13	import android.app.Activity;
14	import android.app.AlertDialog;
15	import android.app.Dialog;
16	import android.app.ProgressDialog;
17	import android.content.DialogInterface;
18	import android.content.Intent;
19	import android.os.AsyncTask;
20	import android.os.Bundle;
21	import android.util.Log;
22	import android.widget.ListView;
23	import android.widget.TextView;
24	import dk.thoerup.traininfo.provider.ProviderFactory;
25	import dk.thoerup.traininfo.provider.TimetableProvider;
26	import dk.thoerup.traininfo.util.MessageBox;
27
28	public class TimetableList extends Activity {
29
30	private static final int DLG_PROGRESS = 8000;
31	DepartureBean departure;
32	TimetableListAdapter adapter;
33	TimetableFetcher fetcher;
34	List<TimetableBean> timetables;
35
36	TimetableProvider provider;
37
38	@SuppressWarnings("unchecked")
39	@Override
40	protected void onCreate(Bundle savedInstanceState) {
41	super.onCreate(savedInstanceState);
42	setContentView(R.layout.timetablelist);
43
44	provider = ProviderFactory.getTimetableProvider();
45
46	adapter = new TimetableListAdapter(this);
47
48	ListView lv = (ListView) findViewById(R.id.List);
49	lv.setAdapter(adapter);
50
51
52	Intent launchedBy = getIntent();
53	departure = (DepartureBean) launchedBy.getSerializableExtra("departure");
54
55	((TextView)findViewById(R.id.Train)).setText(departure.getTrainNumber());
56	((TextView)findViewById(R.id.Status)).setText(departure.getStatus());
57	((TextView)findViewById(R.id.Location)).setText(departure.getLocation());
58	((TextView)findViewById(R.id.Note)).setText(departure.getNote());
59	((TextView)findViewById(R.id.Updated)).setText(departure.getLastUpdateString(this));
60
61
62	if (savedInstanceState == null) {
63	startTimetableFetcher();
64	} else {
65	timetables = (List<TimetableBean>) savedInstanceState.getSerializable("timetables");
66	adapter.setTimetable(timetables);
67	}
68	}
69
70	@Override
71	public void onSaveInstanceState(Bundle outState)
72	{
73	dismissDialog(DLG_PROGRESS);
74	outState.putSerializable("timetables", (ArrayList<TimetableBean>) timetables);
75	}
76
77
78	@Override
79	protected void onPrepareDialog(int id, Dialog dialog) {
80	super.onPrepareDialog(id, dialog);
81
82	switch (id) {
83	case DLG_PROGRESS:
84	//pgDialog = (ProgressDialog) dialog;
85	break;
86	}
87	}
88
89	@Override
90	protected Dialog onCreateDialog(int id) {
91	switch (id) {
92	case DLG_PROGRESS:
93	ProgressDialog dlg = new ProgressDialog(this);
94	dlg.setMessage( getString(timetablelist_fetchdata) );
95	dlg.setCancelable(true);
96	return dlg;
97	default:
98	return super.onCreateDialog(id);
99	}
100	}
101
102	void startTimetableFetcher() {
103	showDialog(DLG_PROGRESS);
104	fetcher = new TimetableFetcher();
105	fetcher.execute(departure.getType(), departure.getTrainNumber());
106	}
107
108	class TimetableFetcher extends AsyncTask<String,Void,Void> {
109
110	boolean success;
111
112	@Override
113	protected void onPostExecute(Void result) {
114	super.onPostExecute(result);
115	dismissDialog(DLG_PROGRESS);
116
117
118	if (success) {
119	adapter.setTimetable(timetables);
120	if (timetables.size() == 0) {
121	MessageBox.showMessage(TimetableList.this, getString(timetablelist_nodata));
122	}
123	} else { // communication or parse error
124	AlertDialog.Builder builder = new AlertDialog.Builder(TimetableList.this);
125	builder.setMessage(getString(timetablelist_fetcherror));
126	builder.setCancelable(true);
127	builder.setPositiveButton(getString(generic_retry), new DialogInterface.OnClickListener() {
128	public void onClick(DialogInterface dialog, int id) {
129	dialog.dismiss();
130	startTimetableFetcher();
131
132	}
133	});
134	builder.setNegativeButton(getString(generic_cancel), new DialogInterface.OnClickListener() {
135	public void onClick(DialogInterface dialog, int id) {
136	dialog.dismiss();
137	}
138	});
139
140	try {
141	builder.show();
142	} catch (android.view.WindowManager.BadTokenException e) {
143	Log.i("TimetableList", "BadTokenException"); // this can happen if the user switched away from this activity, while doInBackground was running
144	}
145
146	}
147
148	}
149
150	@Override
151	protected Void doInBackground(String... arg0) {
152	String type = arg0[0];
153	String trainID = arg0[1];
154	success = provider.lookupTimetable(type, trainID);
155	timetables = provider.getTimetable(type, trainID);
156
157	return null;
158	}
159
160	}
161	}