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.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			import android.view.View;
17			import android.widget.ListView;
18			import android.widget.TextView;
19	torben	255	import dk.thoerup.traininfo.provider.DepartureProvider;
20	torben	253	import dk.thoerup.traininfo.provider.ProviderFactory;
21	torben	245	import dk.thoerup.traininfo.util.MessageBox;
22	torben	237
23			public class DepartureList extends ListActivity {
24
25			public static final int DLG_PROGRESS = 1;
26
27	torben	362
28	torben	237	DepartureListAdapter adapter;
29			DepartureProvider provider;
30			List<DepartureBean> departures;
31
32	torben	257	int selectedItemId;
33			//DepartureBean currentDeparture;
34	torben	237
35			ProgressDialog pgDialog;
36	torben	362
37	torben	238	DepartureFetcher fetcher;
38	torben	336	int stationId;
39	torben	238
40	torben	239	double latitude,longitude;
41
42	torben	257	@SuppressWarnings("unchecked")
43	torben	237	@Override
44			protected void onCreate(Bundle savedInstanceState) {
45			super.onCreate(savedInstanceState);
46			setContentView(R.layout.departurelist);
47
48			adapter = new DepartureListAdapter(this);
49			setListAdapter(adapter);
50
51			Intent launchedBy = getIntent();
52	torben	239
53			latitude = launchedBy.getDoubleExtra("latitude", 0.0);
54			longitude = launchedBy.getDoubleExtra("longitude", 0.0);
55
56	torben	237	String name = launchedBy.getStringExtra("name");
57			((TextView) findViewById(R.id.stationName)).setText( name );
58	torben	317
59			String address = launchedBy.getStringExtra("address");
60			((TextView) findViewById(R.id.stationAddr)).setText( address );
61	torben	237
62	torben	336	stationId = launchedBy.getIntExtra("stationid", -1);
63	torben	294
64	torben	239	findViewById(R.id.header).setOnClickListener( mapLauncher );
65	torben	237
66			NumberFormat format = NumberFormat.getNumberInstance();
67			format.setMaximumFractionDigits(1);
68			format.setMinimumFractionDigits(1);
69			int distance = launchedBy.getIntExtra("distance", 0);
70			((TextView) findViewById(R.id.stationDistance)).setText( format.format((double)distance/1000.0) + " km." );
71
72	torben	238
73	torben	253	provider = ProviderFactory.getDepartureProvider();
74	torben	238
75	torben	257	if (savedInstanceState == null) {
76	torben	336	startDepartureFetcher();
77	torben	257	} else {
78			departures = (List<DepartureBean>) savedInstanceState.getSerializable("departures");
79			adapter.setDepartures(departures);
80			selectedItemId = savedInstanceState.getInt("selectedItemId");
81			}
82	torben	237	}
83
84	torben	243	@Override
85			public void onSaveInstanceState(Bundle outState)
86			{
87	torben	257	if (pgDialog != null && pgDialog.isShowing())
88			dismissDialog(DLG_PROGRESS);
89	torben	362
90	torben	257	outState.putInt("selectedItemId", selectedItemId);
91
92			outState.putSerializable("departures", (ArrayList<DepartureBean>) departures);
93	torben	243	}
94
95	torben	237	@Override
96			protected void onListItemClick(ListView l, View v, int position, long id) {
97			super.onListItemClick(l, v, position, id);
98	torben	362
99			selectedItemId = position;
100	torben	364
101			DepartureBean dep = departures.get(selectedItemId);
102	torben	237
103	torben	362	Intent intent = new Intent(this, TimetableList.class);
104	torben	364	intent.putExtra("departure", dep);
105	torben	362
106			startActivity(intent);
107
108	torben	237	}
109
110
111			@Override
112			protected void onPrepareDialog(int id, Dialog dialog) {
113			super.onPrepareDialog(id, dialog);
114	torben	257
115	torben	237	switch (id) {
116			case DLG_PROGRESS:
117			pgDialog = (ProgressDialog) dialog;
118			break;
119			}
120			}
121
122			@Override
123			protected Dialog onCreateDialog(int id) {
124			switch (id) {
125			case DLG_PROGRESS:
126			ProgressDialog dlg = new ProgressDialog(this);
127			dlg.setMessage("Fetch departure data");
128			dlg.setCancelable(true);
129	torben	362	return dlg;
130	torben	237	default:
131			return super.onCreateDialog(id);
132			}
133			}
134	torben	336
135			void startDepartureFetcher() {
136			showDialog(DLG_PROGRESS);
137			fetcher = new DepartureFetcher();
138			fetcher.execute(stationId);
139			}
140	torben	316
141	torben	237	class DialogDismisser implements View.OnClickListener {
142
143			Dialog dlg;
144			public DialogDismisser(Dialog d) {
145			dlg = d;
146			}
147
148			@Override
149			public void onClick(View v) {
150			if (dlg.isShowing())
151			dlg.dismiss();
152	torben	365	}
153			}
154	torben	238
155	torben	239	View.OnClickListener mapLauncher = new View.OnClickListener() {
156			@Override
157			public void onClick(View v) {
158			Uri uri = Uri.parse("geo:" + latitude + "," + longitude);
159			startActivity( new Intent(Intent.ACTION_VIEW, uri));
160			}
161			};
162	torben	336
163
164	torben	238
165	torben	310	class DepartureFetcher extends AsyncTask<Integer, Void, Void> {
166	torben	238
167	torben	319	boolean success;
168	torben	365
169	torben	238	@Override
170			protected void onPostExecute(Void result) {
171			super.onPostExecute(result);
172
173	torben	336
174	torben	238	pgDialog.dismiss();
175
176	torben	319	if (success) {
177	torben	336	adapter.setDepartures(departures);
178	torben	319	if (departures.size() == 0) {
179			MessageBox.showMessage(DepartureList.this, "No departures found");
180			}
181			} else { // communication or parse error
182	torben	336	AlertDialog.Builder builder = new AlertDialog.Builder(DepartureList.this);
183			builder.setMessage("Error finding departures");
184			builder.setCancelable(true);
185			builder.setPositiveButton("Retry", new DialogInterface.OnClickListener() {
186			public void onClick(DialogInterface dialog, int id) {
187			dialog.dismiss();
188			startDepartureFetcher();
189
190			}
191			});
192			builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
193			public void onClick(DialogInterface dialog, int id) {
194			dialog.dismiss();
195			}
196			});
197			builder.show();
198	torben	319	}
199	torben	238	}
200
201			@Override
202	torben	310	protected Void doInBackground(Integer... params) {
203	torben	319	success = provider.lookupDepartures(params[0]);
204			departures = provider.getDepartures(params[0]);
205	torben	238	return null;
206			}
207
208			}
209	torben	237	}