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;

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;
        int stationId;
        
        double latitude,longitude;
        
        @SuppressWarnings("unchecked")
        @Override
        protected void onCreate(Bundle savedInstanceState) {
                super.onCreate(savedInstanceState);
                setContentView(R.layout.departurelist);
                
                adapter = new DepartureListAdapter(this);
                setListAdapter(adapter);
                
                Intent launchedBy = getIntent();
                
                latitude = launchedBy.getDoubleExtra("latitude", 0.0);
                longitude = launchedBy.getDoubleExtra("longitude", 0.0);
                
                String name = launchedBy.getStringExtra("name");
                ((TextView) findViewById(R.id.stationName)).setText( name );

                String address = launchedBy.getStringExtra("address");
                ((TextView) findViewById(R.id.stationAddr)).setText( address );
                
                stationId = launchedBy.getIntExtra("stationid", -1); 
                
                findViewById(R.id.header).setOnClickListener( mapLauncher );
                
                NumberFormat format = NumberFormat.getNumberInstance();
                format.setMaximumFractionDigits(1);
                format.setMinimumFractionDigits(1);
                int distance = launchedBy.getIntExtra("distance", 0);
                ((TextView) findViewById(R.id.stationDistance)).setText( format.format((double)distance/1000.0) + " km." );
        
                
                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("Fetch departure data");
                        dlg.setCancelable(true);
                        return dlg;                     
                default:
                        return super.onCreateDialog(id);                
                }
        }

        void startDepartureFetcher() {
                showDialog(DLG_PROGRESS);
                fetcher = new DepartureFetcher(); 
                fetcher.execute(stationId);
        }
        
        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:" + latitude + "," + longitude);
                        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("Retry", new DialogInterface.OnClickListener() {
                                        public void onClick(DialogInterface dialog, int id) {
                                                dialog.dismiss();
                                                startDepartureFetcher();
                                                
                                        }
                                });
                                builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
                                        public void onClick(DialogInterface dialog, int id) {
                                                dialog.dismiss();
                                        }                                                       
                                });                                                                                             
                                builder.show();                         
                        }
                }

                @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	316	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	237
24			public class DepartureList extends ListActivity {
25
26			public static final int DLG_PROGRESS = 1;
27
28	torben	362
29	torben	237	DepartureListAdapter adapter;
30			DepartureProvider provider;
31			List<DepartureBean> departures;
32
33	torben	257	int selectedItemId;
34			//DepartureBean currentDeparture;
35	torben	237
36			ProgressDialog pgDialog;
37	torben	362
38	torben	238	DepartureFetcher fetcher;
39	torben	336	int stationId;
40	torben	238
41	torben	239	double latitude,longitude;
42
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	239
54			latitude = launchedBy.getDoubleExtra("latitude", 0.0);
55			longitude = launchedBy.getDoubleExtra("longitude", 0.0);
56
57	torben	237	String name = launchedBy.getStringExtra("name");
58			((TextView) findViewById(R.id.stationName)).setText( name );
59	torben	317
60			String address = launchedBy.getStringExtra("address");
61			((TextView) findViewById(R.id.stationAddr)).setText( address );
62	torben	237
63	torben	336	stationId = launchedBy.getIntExtra("stationid", -1);
64	torben	294
65	torben	239	findViewById(R.id.header).setOnClickListener( mapLauncher );
66	torben	237
67			NumberFormat format = NumberFormat.getNumberInstance();
68			format.setMaximumFractionDigits(1);
69			format.setMinimumFractionDigits(1);
70			int distance = launchedBy.getIntExtra("distance", 0);
71			((TextView) findViewById(R.id.stationDistance)).setText( format.format((double)distance/1000.0) + " km." );
72
73	torben	238
74	torben	253	provider = ProviderFactory.getDepartureProvider();
75	torben	238
76	torben	257	if (savedInstanceState == null) {
77	torben	336	startDepartureFetcher();
78	torben	257	} else {
79			departures = (List<DepartureBean>) savedInstanceState.getSerializable("departures");
80			adapter.setDepartures(departures);
81			selectedItemId = savedInstanceState.getInt("selectedItemId");
82			}
83	torben	237	}
84
85	torben	243	@Override
86			public void onSaveInstanceState(Bundle outState)
87			{
88	torben	257	if (pgDialog != null && pgDialog.isShowing())
89			dismissDialog(DLG_PROGRESS);
90	torben	362
91	torben	257	outState.putInt("selectedItemId", selectedItemId);
92
93			outState.putSerializable("departures", (ArrayList<DepartureBean>) departures);
94	torben	243	}
95
96	torben	237	@Override
97			protected void onListItemClick(ListView l, View v, int position, long id) {
98			super.onListItemClick(l, v, position, id);
99	torben	362
100			selectedItemId = position;
101	torben	364
102			DepartureBean dep = departures.get(selectedItemId);
103	torben	237
104	torben	362	Intent intent = new Intent(this, TimetableList.class);
105	torben	364	intent.putExtra("departure", dep);
106	torben	362
107			startActivity(intent);
108
109	torben	237	}
110
111
112			@Override
113			protected void onPrepareDialog(int id, Dialog dialog) {
114			super.onPrepareDialog(id, dialog);
115	torben	257
116	torben	237	switch (id) {
117			case DLG_PROGRESS:
118			pgDialog = (ProgressDialog) dialog;
119			break;
120			}
121			}
122
123			@Override
124			protected Dialog onCreateDialog(int id) {
125			switch (id) {
126			case DLG_PROGRESS:
127			ProgressDialog dlg = new ProgressDialog(this);
128			dlg.setMessage("Fetch departure data");
129			dlg.setCancelable(true);
130	torben	362	return dlg;
131	torben	237	default:
132			return super.onCreateDialog(id);
133			}
134			}
135	torben	336
136			void startDepartureFetcher() {
137			showDialog(DLG_PROGRESS);
138			fetcher = new DepartureFetcher();
139			fetcher.execute(stationId);
140			}
141	torben	316
142	torben	237	class DialogDismisser implements View.OnClickListener {
143
144			Dialog dlg;
145			public DialogDismisser(Dialog d) {
146			dlg = d;
147			}
148
149			@Override
150			public void onClick(View v) {
151			if (dlg.isShowing())
152			dlg.dismiss();
153	torben	365	}
154			}
155	torben	238
156	torben	239	View.OnClickListener mapLauncher = new View.OnClickListener() {
157			@Override
158			public void onClick(View v) {
159			Uri uri = Uri.parse("geo:" + latitude + "," + longitude);
160			startActivity( new Intent(Intent.ACTION_VIEW, uri));
161			}
162			};
163	torben	336
164
165	torben	238
166	torben	310	class DepartureFetcher extends AsyncTask<Integer, Void, Void> {
167	torben	238
168	torben	319	boolean success;
169	torben	365
170	torben	238	@Override
171			protected void onPostExecute(Void result) {
172			super.onPostExecute(result);
173
174	torben	336
175	torben	238	pgDialog.dismiss();
176
177	torben	319	if (success) {
178	torben	336	adapter.setDepartures(departures);
179	torben	319	if (departures.size() == 0) {
180			MessageBox.showMessage(DepartureList.this, "No departures found");
181			}
182			} else { // communication or parse error
183	torben	336	AlertDialog.Builder builder = new AlertDialog.Builder(DepartureList.this);
184			builder.setMessage("Error finding departures");
185			builder.setCancelable(true);
186			builder.setPositiveButton("Retry", new DialogInterface.OnClickListener() {
187			public void onClick(DialogInterface dialog, int id) {
188			dialog.dismiss();
189			startDepartureFetcher();
190
191			}
192			});
193			builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
194			public void onClick(DialogInterface dialog, int id) {
195			dialog.dismiss();
196			}
197			});
198			builder.show();
199	torben	319	}
200	torben	238	}
201
202			@Override
203	torben	310	protected Void doInBackground(Integer... params) {
204	torben	319	success = provider.lookupDepartures(params[0]);
205			departures = provider.getDepartures(params[0]);
206	torben	238	return null;
207			}
208
209			}
210	torben	237	}