thoerup/traininfo/DepartureList.java

package dk.thoerup.traininfo;

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.widget.ListView;
import android.widget.TextView;
import dk.thoerup.traininfo.provider.DepartureProvider;
import dk.thoerup.traininfo.provider.ProviderFactory;
import dk.thoerup.traininfo.util.MessageBox;
import static dk.thoerup.traininfo.R.string.*;

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;
        
        @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() );
                
                
                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 );
                        
                } 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;
                        break;
                }
        }
        
        @Override
        protected Dialog onCreateDialog(int id) {
                switch (id) {
                case DLG_PROGRESS:
                        ProgressDialog dlg = new ProgressDialog(this);
                        dlg.setMessage( getString(departurelist_fetchdata) );
                        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();
                                        }                                                       
                                });
                                
                                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]);
                        departures = provider.getDepartures(params[0]);
                        return null;
                }
                
        }
}
1	torben	237	package dk.thoerup.traininfo;
2
3			import java.text.NumberFormat;
4	torben	257	import java.util.ArrayList;
5	torben	237	import java.util.List;
6
7	torben	336	import android.app.AlertDialog;
8	torben	237	import android.app.Dialog;
9			import android.app.ListActivity;
10			import android.app.ProgressDialog;
11	torben	336	import android.content.DialogInterface;
12	torben	237	import android.content.Intent;
13	torben	239	import android.net.Uri;
14	torben	237	import android.os.AsyncTask;
15			import android.os.Bundle;
16	torben	630	import android.util.Log;
17	torben	237	import android.view.View;
18			import android.widget.ListView;
19			import android.widget.TextView;
20	torben	255	import dk.thoerup.traininfo.provider.DepartureProvider;
21	torben	253	import dk.thoerup.traininfo.provider.ProviderFactory;
22	torben	245	import dk.thoerup.traininfo.util.MessageBox;
23	torben	575	import static dk.thoerup.traininfo.R.string.*;
24	torben	237
25			public class DepartureList extends ListActivity {
26
27			public static final int DLG_PROGRESS = 1;
28
29	torben	362
30	torben	237	DepartureListAdapter adapter;
31			DepartureProvider provider;
32			List<DepartureBean> departures;
33
34	torben	257	int selectedItemId;
35			//DepartureBean currentDeparture;
36	torben	237
37			ProgressDialog pgDialog;
38	torben	362
39	torben	238	DepartureFetcher fetcher;
40	torben	557
41			StationBean station;
42	torben	238
43	torben	257	@SuppressWarnings("unchecked")
44	torben	237	@Override
45			protected void onCreate(Bundle savedInstanceState) {
46			super.onCreate(savedInstanceState);
47			setContentView(R.layout.departurelist);
48
49			adapter = new DepartureListAdapter(this);
50			setListAdapter(adapter);
51
52			Intent launchedBy = getIntent();
53	torben	557
54			station = (StationBean) launchedBy.getSerializableExtra("stationbean");
55	torben	239
56	torben	557	((TextView) findViewById(R.id.stationName)).setText( station.getName() );
57	torben	317
58	torben	557
59			((TextView) findViewById(R.id.stationAddr)).setText( station.getAddress() );
60	torben	237
61	torben	294
62	torben	239	findViewById(R.id.header).setOnClickListener( mapLauncher );
63	torben	237
64	torben	557	int distance = station.getDistance();
65	torben	742	if (distance != 0) {
66			NumberFormat format = NumberFormat.getNumberInstance();
67			format.setMaximumFractionDigits(1);
68			format.setMinimumFractionDigits(1);
69	torben	575
70	torben	742	((TextView) findViewById(R.id.stationDistance)).setText( format.format((double)distance/1000.0) + " km." );
71			} else {
72			((TextView) findViewById(R.id.stationDistance)).setVisibility(View.GONE);
73			}
74
75	torben	552
76	torben	557	if (station.isRegional() == false && station.isSTrain() == false) {
77	torben	552	getListView().setVisibility( View.GONE );
78			findViewById(R.id.metroonly).setVisibility( View.VISIBLE );
79
80	torben	257	} else {
81	torben	552	provider = ProviderFactory.getDepartureProvider();
82
83			if (savedInstanceState == null) {
84			startDepartureFetcher();
85			} else {
86			departures = (List<DepartureBean>) savedInstanceState.getSerializable("departures");
87			adapter.setDepartures(departures);
88			selectedItemId = savedInstanceState.getInt("selectedItemId");
89			}
90	torben	257	}
91	torben	237	}
92
93	torben	243	@Override
94			public void onSaveInstanceState(Bundle outState)
95			{
96	torben	257	if (pgDialog != null && pgDialog.isShowing())
97			dismissDialog(DLG_PROGRESS);
98	torben	362
99	torben	257	outState.putInt("selectedItemId", selectedItemId);
100
101			outState.putSerializable("departures", (ArrayList<DepartureBean>) departures);
102	torben	243	}
103
104	torben	237	@Override
105			protected void onListItemClick(ListView l, View v, int position, long id) {
106			super.onListItemClick(l, v, position, id);
107	torben	362
108			selectedItemId = position;
109	torben	364
110			DepartureBean dep = departures.get(selectedItemId);
111	torben	237
112	torben	362	Intent intent = new Intent(this, TimetableList.class);
113	torben	364	intent.putExtra("departure", dep);
114	torben	362
115			startActivity(intent);
116
117	torben	237	}
118
119
120			@Override
121			protected void onPrepareDialog(int id, Dialog dialog) {
122			super.onPrepareDialog(id, dialog);
123	torben	257
124	torben	237	switch (id) {
125			case DLG_PROGRESS:
126			pgDialog = (ProgressDialog) dialog;
127			break;
128			}
129			}
130
131			@Override
132			protected Dialog onCreateDialog(int id) {
133			switch (id) {
134			case DLG_PROGRESS:
135			ProgressDialog dlg = new ProgressDialog(this);
136	torben	561	dlg.setMessage( getString(departurelist_fetchdata) );
137	torben	237	dlg.setCancelable(true);
138	torben	362	return dlg;
139	torben	237	default:
140			return super.onCreateDialog(id);
141			}
142			}
143	torben	336
144			void startDepartureFetcher() {
145			showDialog(DLG_PROGRESS);
146			fetcher = new DepartureFetcher();
147	torben	557	fetcher.execute(station.getId());
148	torben	336	}
149	torben	316
150	torben	237	class DialogDismisser implements View.OnClickListener {
151
152			Dialog dlg;
153			public DialogDismisser(Dialog d) {
154			dlg = d;
155			}
156
157			@Override
158			public void onClick(View v) {
159			if (dlg.isShowing())
160			dlg.dismiss();
161	torben	365	}
162			}
163	torben	238
164	torben	239	View.OnClickListener mapLauncher = new View.OnClickListener() {
165			@Override
166	torben	557	public void onClick(View v) {
167			Uri uri = Uri.parse("geo:" + station.getLatitude() + "," + station.getLongitude());
168	torben	239	startActivity( new Intent(Intent.ACTION_VIEW, uri));
169			}
170			};
171	torben	336
172
173	torben	238
174	torben	310	class DepartureFetcher extends AsyncTask<Integer, Void, Void> {
175	torben	238
176	torben	319	boolean success;
177	torben	365
178	torben	238	@Override
179			protected void onPostExecute(Void result) {
180			super.onPostExecute(result);
181
182	torben	336
183	torben	238	pgDialog.dismiss();
184
185	torben	319	if (success) {
186	torben	336	adapter.setDepartures(departures);
187	torben	319	if (departures.size() == 0) {
188			MessageBox.showMessage(DepartureList.this, "No departures found");
189			}
190			} else { // communication or parse error
191	torben	336	AlertDialog.Builder builder = new AlertDialog.Builder(DepartureList.this);
192			builder.setMessage("Error finding departures");
193			builder.setCancelable(true);
194	torben	561	builder.setPositiveButton(getString(generic_retry), new DialogInterface.OnClickListener() {
195	torben	336	public void onClick(DialogInterface dialog, int id) {
196			dialog.dismiss();
197			startDepartureFetcher();
198
199			}
200			});
201	torben	561	builder.setNegativeButton(getString(generic_cancel), new DialogInterface.OnClickListener() {
202	torben	336	public void onClick(DialogInterface dialog, int id) {
203			dialog.dismiss();
204			}
205	torben	630	});
206
207			try {
208			builder.show();
209			} catch (android.view.WindowManager.BadTokenException e) {
210			Log.i("DepartureList", "BadTokenException"); // this can happen if the user switched away from this activity, while doInBackground was running
211			}
212	torben	319	}
213	torben	238	}
214
215			@Override
216	torben	310	protected Void doInBackground(Integer... params) {
217	torben	319	success = provider.lookupDepartures(params[0]);
218			departures = provider.getDepartures(params[0]);
219	torben	238	return null;
220			}
221
222			}
223	torben	237	}