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