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	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.view.View;
17	import android.widget.ListView;
18	import android.widget.TextView;
19	import dk.thoerup.traininfo.provider.DepartureProvider;
20	import dk.thoerup.traininfo.provider.ProviderFactory;
21	import dk.thoerup.traininfo.util.MessageBox;
22
23	public class DepartureList extends ListActivity {
24
25	public static final int DLG_PROGRESS = 1;
26
27
28	DepartureListAdapter adapter;
29	DepartureProvider provider;
30	List<DepartureBean> departures;
31
32	int selectedItemId;
33	//DepartureBean currentDeparture;
34
35	ProgressDialog pgDialog;
36
37	DepartureFetcher fetcher;
38	int stationId;
39
40	double latitude,longitude;
41
42	@SuppressWarnings("unchecked")
43	@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
53	latitude = launchedBy.getDoubleExtra("latitude", 0.0);
54	longitude = launchedBy.getDoubleExtra("longitude", 0.0);
55
56	String name = launchedBy.getStringExtra("name");
57	((TextView) findViewById(R.id.stationName)).setText( name );
58
59	String address = launchedBy.getStringExtra("address");
60	((TextView) findViewById(R.id.stationAddr)).setText( address );
61
62	stationId = launchedBy.getIntExtra("stationid", -1);
63
64	findViewById(R.id.header).setOnClickListener( mapLauncher );
65
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
73	provider = ProviderFactory.getDepartureProvider();
74
75	if (savedInstanceState == null) {
76	startDepartureFetcher();
77	} else {
78	departures = (List<DepartureBean>) savedInstanceState.getSerializable("departures");
79	adapter.setDepartures(departures);
80	selectedItemId = savedInstanceState.getInt("selectedItemId");
81	}
82	}
83
84	@Override
85	public void onSaveInstanceState(Bundle outState)
86	{
87	if (pgDialog != null && pgDialog.isShowing())
88	dismissDialog(DLG_PROGRESS);
89
90	outState.putInt("selectedItemId", selectedItemId);
91
92	outState.putSerializable("departures", (ArrayList<DepartureBean>) departures);
93	}
94
95	@Override
96	protected void onListItemClick(ListView l, View v, int position, long id) {
97	super.onListItemClick(l, v, position, id);
98
99	selectedItemId = position;
100
101	DepartureBean dep = departures.get(selectedItemId);
102
103	Intent intent = new Intent(this, TimetableList.class);
104	intent.putExtra("departure", dep);
105
106	startActivity(intent);
107
108	}
109
110
111	@Override
112	protected void onPrepareDialog(int id, Dialog dialog) {
113	super.onPrepareDialog(id, dialog);
114
115	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	return dlg;
130	default:
131	return super.onCreateDialog(id);
132	}
133	}
134
135	void startDepartureFetcher() {
136	showDialog(DLG_PROGRESS);
137	fetcher = new DepartureFetcher();
138	fetcher.execute(stationId);
139	}
140
141	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	}
153	}
154
155	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
163
164
165	class DepartureFetcher extends AsyncTask<Integer, Void, Void> {
166
167	boolean success;
168
169	@Override
170	protected void onPostExecute(Void result) {
171	super.onPostExecute(result);
172
173
174	pgDialog.dismiss();
175
176	if (success) {
177	adapter.setDepartures(departures);
178	if (departures.size() == 0) {
179	MessageBox.showMessage(DepartureList.this, "No departures found");
180	}
181	} else { // communication or parse error
182	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	}
199	}
200
201	@Override
202	protected Void doInBackground(Integer... params) {
203	success = provider.lookupDepartures(params[0]);
204	departures = provider.getDepartures(params[0]);
205	return null;
206	}
207
208	}
209	}