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	package dk.thoerup.traininfo;
2
3	import java.text.NumberFormat;
4	import java.util.ArrayList;
5	import java.util.List;
6
7	import android.app.AlertDialog;
8	import android.app.Dialog;
9	import android.app.ListActivity;
10	import android.app.ProgressDialog;
11	import android.content.DialogInterface;
12	import android.content.Intent;
13	import android.net.Uri;
14	import android.os.AsyncTask;
15	import android.os.Bundle;
16	import android.util.Log;
17	import android.view.View;
18	import android.widget.ListView;
19	import android.widget.TextView;
20	import dk.thoerup.traininfo.provider.DepartureProvider;
21	import dk.thoerup.traininfo.provider.ProviderFactory;
22	import dk.thoerup.traininfo.util.MessageBox;
23
24	public class DepartureList extends ListActivity {
25
26	public static final int DLG_PROGRESS = 1;
27
28
29	DepartureListAdapter adapter;
30	DepartureProvider provider;
31	List<DepartureBean> departures;
32
33	int selectedItemId;
34	//DepartureBean currentDeparture;
35
36	ProgressDialog pgDialog;
37
38	DepartureFetcher fetcher;
39	int stationId;
40
41	double latitude,longitude;
42
43	@SuppressWarnings("unchecked")
44	@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
54	latitude = launchedBy.getDoubleExtra("latitude", 0.0);
55	longitude = launchedBy.getDoubleExtra("longitude", 0.0);
56
57	String name = launchedBy.getStringExtra("name");
58	((TextView) findViewById(R.id.stationName)).setText( name );
59
60	String address = launchedBy.getStringExtra("address");
61	((TextView) findViewById(R.id.stationAddr)).setText( address );
62
63	stationId = launchedBy.getIntExtra("stationid", -1);
64
65	findViewById(R.id.header).setOnClickListener( mapLauncher );
66
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
74	provider = ProviderFactory.getDepartureProvider();
75
76	if (savedInstanceState == null) {
77	startDepartureFetcher();
78	} else {
79	departures = (List<DepartureBean>) savedInstanceState.getSerializable("departures");
80	adapter.setDepartures(departures);
81	selectedItemId = savedInstanceState.getInt("selectedItemId");
82	}
83	}
84
85	@Override
86	public void onSaveInstanceState(Bundle outState)
87	{
88	if (pgDialog != null && pgDialog.isShowing())
89	dismissDialog(DLG_PROGRESS);
90
91	outState.putInt("selectedItemId", selectedItemId);
92
93	outState.putSerializable("departures", (ArrayList<DepartureBean>) departures);
94	}
95
96	@Override
97	protected void onListItemClick(ListView l, View v, int position, long id) {
98	super.onListItemClick(l, v, position, id);
99
100	selectedItemId = position;
101
102	DepartureBean dep = departures.get(selectedItemId);
103
104	Intent intent = new Intent(this, TimetableList.class);
105	intent.putExtra("departure", dep);
106
107	startActivity(intent);
108
109	}
110
111
112	@Override
113	protected void onPrepareDialog(int id, Dialog dialog) {
114	super.onPrepareDialog(id, dialog);
115
116	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	return dlg;
131	default:
132	return super.onCreateDialog(id);
133	}
134	}
135
136	void startDepartureFetcher() {
137	showDialog(DLG_PROGRESS);
138	fetcher = new DepartureFetcher();
139	fetcher.execute(stationId);
140	}
141
142	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	}
154	}
155
156	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
164
165
166	class DepartureFetcher extends AsyncTask<Integer, Void, Void> {
167
168	boolean success;
169
170	@Override
171	protected void onPostExecute(Void result) {
172	super.onPostExecute(result);
173
174
175	pgDialog.dismiss();
176
177	if (success) {
178	adapter.setDepartures(departures);
179	if (departures.size() == 0) {
180	MessageBox.showMessage(DepartureList.this, "No departures found");
181	}
182	} else { // communication or parse error
183	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	}
200	}
201
202	@Override
203	protected Void doInBackground(Integer... params) {
204	success = provider.lookupDepartures(params[0]);
205	departures = provider.getDepartures(params[0]);
206	return null;
207	}
208
209	}
210	}