android/people/PeopleList.java

package com.grundfos.android.people;

import java.util.Date;

import android.app.AlertDialog;
import android.app.Dialog;
import android.app.ListActivity;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.database.Cursor;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.os.PowerManager;
import android.text.Editable;
import android.text.TextWatcher;
import android.util.Log;
import android.view.KeyEvent;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.SimpleCursorAdapter;
import android.widget.TextView;
import android.widget.TextView.OnEditorActionListener;

public class PeopleList extends ListActivity {

        
        public static final int DOWNLOAD = 1010;
        public static final int ABOUT = 1011;
        
        public static final int DOWNLOAD_SUCCESS = 0;
        public static final int DOWNLOAD_FAILED = 1;
        
        public static final String PREF_LAST_DB_UPDATE = "LastDbUpdate";
        public static final String PREFS = "PeoplePrefs";
        
        PeopleDatabase peopleDB;

        Dialog dialog;
        SimpleCursorAdapter adapter; 
    
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        
        
        peopleDB = new PeopleDatabase(this);
        
        
        adapter = new SimpleCursorAdapter(this,
                    R.layout.row, // Use a template
                                                          // that displays a
                                                          // text view
                    null , // Give the cursor to the list adatper
                    new String[] { "name", "inits", "company" }, // Map the NAME column in the
                                                         // people database to...
                    new int[] {R.id.name, R.id.init, R.id.company}); // The "text1" view defined in
                                                     // the XML template

         setListAdapter( adapter ) ;
        
        EditText et = (EditText) findViewById( R.id.entry);
        et.setOnEditorActionListener( new OnEditorActionListener() {
                public boolean  onEditorAction  (TextView v, int actionId, KeyEvent event) {
                        Log.e("Atest", "asd: " + event );
                        return true;
                }
                
        });
        et.addTextChangedListener( new TextWatcher() {
                public void afterTextChanged(Editable s) {
                        searchStringChanged(s.toString());
                }
                public void onTextChanged(CharSequence s, int start, int before, int count){
                }
                public void beforeTextChanged(CharSequence s, int start, int count, int after){
                }
        });
        
        
        if ( peopleDB.getPeopleCount() == 0)
                onEmptyDB();
        
        
        Log.i("PeopleList", "Activity started");        
    }
    

    @Override
        protected void finalize() throws Throwable {
        peopleDB.close();
                super.finalize();
        }


        public void onEmptyDB()
    {
                AlertDialog.Builder builder = new AlertDialog.Builder(this);
                builder.setMessage("Database is empty, download data now?")
                       .setCancelable(false)
                       .setPositiveButton("Yes", new DialogInterface.OnClickListener() {
                           public void onClick(DialogInterface dialog, int id) {
                                dialog.dismiss();
                                loadDatabase();
                           }
                       })
                       .setNegativeButton("No", new DialogInterface.OnClickListener() {
                           public void onClick(DialogInterface dialog, int id) {
                                dialog.cancel();
                           }
                       })
                       .show();    
    }
    
    public void searchStringChanged(String search)
    {
        Cursor names = null;
        if (search.trim().length() >= 2)
                names = peopleDB.getPeopleList(search);

        adapter.changeCursor(names);
        adapter.notifyDataSetChanged();
    }
    
    protected void  onListItemClick  (ListView l, View v, int position, long id)
    {
        Intent intent = new Intent(this, PeopleDetails.class);
        intent.putExtra("id", id);
        startActivity(intent);
    }


        @Override
        public boolean onOptionsItemSelected(MenuItem item) {
                
                switch (item.getItemId()) {
                case DOWNLOAD:
                        loadDatabase();
                        return true;
                case ABOUT:
                        showAbout();
                        return true;
                }
                
                return super.onOptionsItemSelected(item);
        }


        @Override
        public boolean onCreateOptionsMenu(Menu menu) {
                menu.add(0, DOWNLOAD, 0, "Download DB");
                menu.add(0, ABOUT, 0, "About");
                return true;

        }
        
        
        public void showAbout() {
                SharedPreferences settings = getSharedPreferences(PREFS, 0);
                StringBuffer message = new StringBuffer();
                message.append("Grundfos People v0.1\n");
                message.append("By Torben Hørup Nielsen\n");
                message.append("Database size: ").append(peopleDB.getPeopleCount()).append("\n");
                message.append("Last DB update: ").append( settings.getString(PREF_LAST_DB_UPDATE, " - never -"));
                
                showMessage(message.toString());

        }
        
        public void showMessage(String message) {
                AlertDialog.Builder builder = new AlertDialog.Builder(this);
                builder.setMessage(message)
                       .setCancelable(false)
                       .setPositiveButton("OK", new DialogInterface.OnClickListener() {
                           public void onClick(DialogInterface dialog, int id) {
                                dialog.dismiss();
                           }
                       })
                       .show();
                
        }
        
        public void loadDatabase()
        {
        ConnectivityManager cm = (ConnectivityManager) this.getSystemService(Context.CONNECTIVITY_SERVICE);
        if (cm.getActiveNetworkInfo().getType() != ConnectivityManager.TYPE_WIFI) {
                AlertDialog.Builder builder = new AlertDialog.Builder(this);
                builder.setMessage("You are not connected to a WiFi network. It is not recommended to load a DB via mobile network")
                       .setCancelable(false)
                       .setPositiveButton("Continue", new DialogInterface.OnClickListener() {
                           public void onClick(DialogInterface dialog, int id) {
                                dialog.dismiss();
                                startLoadDatabase();
                           }
                       })
                       .setNegativeButton("Abort", new DialogInterface.OnClickListener() {
                           public void onClick(DialogInterface dialog, int id) {
                                dialog.cancel();
                           }
                       })
                       .show();    
        } else {
                startLoadDatabase();
        }
        }
        

        public void startLoadDatabase()
        {
                dialog = new ProgressDialog(this);
                ((ProgressDialog)dialog).setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
                ((ProgressDialog)dialog).setMessage("Loading...");
                dialog.setCancelable(false);
                dialog.show();

                Thread t = new Thread(reloadDB);
                t.start();
        }

        private Handler progressHandler = new Handler() {
                public void handleMessage(Message msg) {
                        ProgressDialog dlg = (ProgressDialog) dialog;
                        if (msg.what == 0)
                                dlg.setMax( msg.arg1 );
                        else
                                dlg.setProgress(msg.arg1);
                }
        };
        
    private Handler dbUpdateHandler = new Handler() {

        @Override
        public void handleMessage(Message msg) {
                dialog.dismiss();
            if (msg.what == DOWNLOAD_SUCCESS) { 
                Date d = new Date();
                
                SharedPreferences settings = getSharedPreferences(PREFS, 0);

                SharedPreferences.Editor ed = settings.edit();                  
                ed.putString(PREF_LAST_DB_UPDATE, d.toLocaleString());
                ed.commit();
            } else {
                showMessage("Download failed");
                
            }
       }
    };

    Runnable reloadDB = new Runnable() {
                public void run() {
                        PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
                        PowerManager.WakeLock wl = pm.newWakeLock(PowerManager.SCREEN_DIM_WAKE_LOCK, "My Tag");
                        try
                        {

                                 wl.acquire();


                                peopleDB.loadData(progressHandler);
                        dbUpdateHandler.sendEmptyMessage(DOWNLOAD_SUCCESS);
                        } catch (Exception e) {
                                Log.e("PeopleList", "reloadDB", e);
                                dbUpdateHandler.sendEmptyMessage(DOWNLOAD_FAILED);
                        } finally {
                                 wl.release();
                        }
                }
    };
}
1	package com.grundfos.android.people;
2
3	import java.util.Date;
4
5	import android.app.AlertDialog;
6	import android.app.Dialog;
7	import android.app.ListActivity;
8	import android.app.ProgressDialog;
9	import android.content.Context;
10	import android.content.DialogInterface;
11	import android.content.Intent;
12	import android.content.SharedPreferences;
13	import android.database.Cursor;
14	import android.net.ConnectivityManager;
15	import android.net.NetworkInfo;
16	import android.os.Bundle;
17	import android.os.Handler;
18	import android.os.Message;
19	import android.os.PowerManager;
20	import android.text.Editable;
21	import android.text.TextWatcher;
22	import android.util.Log;
23	import android.view.KeyEvent;
24	import android.view.Menu;
25	import android.view.MenuItem;
26	import android.view.View;
27	import android.widget.EditText;
28	import android.widget.ListView;
29	import android.widget.SimpleCursorAdapter;
30	import android.widget.TextView;
31	import android.widget.TextView.OnEditorActionListener;
32
33	public class PeopleList extends ListActivity {
34
35
36	public static final int DOWNLOAD = 1010;
37	public static final int ABOUT = 1011;
38
39	public static final int DOWNLOAD_SUCCESS = 0;
40	public static final int DOWNLOAD_FAILED = 1;
41
42	public static final String PREF_LAST_DB_UPDATE = "LastDbUpdate";
43	public static final String PREFS = "PeoplePrefs";
44
45	PeopleDatabase peopleDB;
46
47	Dialog dialog;
48	SimpleCursorAdapter adapter;
49
50	@Override
51	public void onCreate(Bundle savedInstanceState) {
52	super.onCreate(savedInstanceState);
53	setContentView(R.layout.main);
54
55
56	peopleDB = new PeopleDatabase(this);
57
58
59	adapter = new SimpleCursorAdapter(this,
60	R.layout.row, // Use a template
61	// that displays a
62	// text view
63	null , // Give the cursor to the list adatper
64	new String[] { "name", "inits", "company" }, // Map the NAME column in the
65	// people database to...
66	new int[] {R.id.name, R.id.init, R.id.company}); // The "text1" view defined in
67	// the XML template
68
69	setListAdapter( adapter ) ;
70
71	EditText et = (EditText) findViewById( R.id.entry);
72	et.setOnEditorActionListener( new OnEditorActionListener() {
73	public boolean onEditorAction (TextView v, int actionId, KeyEvent event) {
74	Log.e("Atest", "asd: " + event );
75	return true;
76	}
77
78	});
79	et.addTextChangedListener( new TextWatcher() {
80	public void afterTextChanged(Editable s) {
81	searchStringChanged(s.toString());
82	}
83	public void onTextChanged(CharSequence s, int start, int before, int count){
84	}
85	public void beforeTextChanged(CharSequence s, int start, int count, int after){
86	}
87	});
88
89
90	if ( peopleDB.getPeopleCount() == 0)
91	onEmptyDB();
92
93
94	Log.i("PeopleList", "Activity started");
95	}
96
97
98
99
100	@Override
101	protected void finalize() throws Throwable {
102	peopleDB.close();
103	super.finalize();
104	}
105
106
107
108	public void onEmptyDB()
109	{
110	AlertDialog.Builder builder = new AlertDialog.Builder(this);
111	builder.setMessage("Database is empty, download data now?")
112	.setCancelable(false)
113	.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
114	public void onClick(DialogInterface dialog, int id) {
115	dialog.dismiss();
116	loadDatabase();
117	}
118	})
119	.setNegativeButton("No", new DialogInterface.OnClickListener() {
120	public void onClick(DialogInterface dialog, int id) {
121	dialog.cancel();
122	}
123	})
124	.show();
125	}
126
127	public void searchStringChanged(String search)
128	{
129	Cursor names = null;
130	if (search.trim().length() >= 2)
131	names = peopleDB.getPeopleList(search);
132
133	adapter.changeCursor(names);
134	adapter.notifyDataSetChanged();
135	}
136
137	protected void onListItemClick (ListView l, View v, int position, long id)
138	{
139	Intent intent = new Intent(this, PeopleDetails.class);
140	intent.putExtra("id", id);
141	startActivity(intent);
142	}
143
144
145	@Override
146	public boolean onOptionsItemSelected(MenuItem item) {
147
148	switch (item.getItemId()) {
149	case DOWNLOAD:
150	loadDatabase();
151	return true;
152	case ABOUT:
153	showAbout();
154	return true;
155	}
156
157	return super.onOptionsItemSelected(item);
158	}
159
160
161	@Override
162	public boolean onCreateOptionsMenu(Menu menu) {
163	menu.add(0, DOWNLOAD, 0, "Download DB");
164	menu.add(0, ABOUT, 0, "About");
165	return true;
166
167	}
168
169
170	public void showAbout() {
171	SharedPreferences settings = getSharedPreferences(PREFS, 0);
172	StringBuffer message = new StringBuffer();
173	message.append("Grundfos People v0.1\n");
174	message.append("By Torben Hørup Nielsen\n");
175	message.append("Database size: ").append(peopleDB.getPeopleCount()).append("\n");
176	message.append("Last DB update: ").append( settings.getString(PREF_LAST_DB_UPDATE, " - never -"));
177
178	showMessage(message.toString());
179
180	}
181
182	public void showMessage(String message) {
183	AlertDialog.Builder builder = new AlertDialog.Builder(this);
184	builder.setMessage(message)
185	.setCancelable(false)
186	.setPositiveButton("OK", new DialogInterface.OnClickListener() {
187	public void onClick(DialogInterface dialog, int id) {
188	dialog.dismiss();
189	}
190	})
191	.show();
192
193	}
194
195	public void loadDatabase()
196	{
197	ConnectivityManager cm = (ConnectivityManager) this.getSystemService(Context.CONNECTIVITY_SERVICE);
198	if (cm.getActiveNetworkInfo().getType() != ConnectivityManager.TYPE_WIFI) {
199	AlertDialog.Builder builder = new AlertDialog.Builder(this);
200	builder.setMessage("You are not connected to a WiFi network. It is not recommended to load a DB via mobile network")
201	.setCancelable(false)
202	.setPositiveButton("Continue", new DialogInterface.OnClickListener() {
203	public void onClick(DialogInterface dialog, int id) {
204	dialog.dismiss();
205	startLoadDatabase();
206	}
207	})
208	.setNegativeButton("Abort", new DialogInterface.OnClickListener() {
209	public void onClick(DialogInterface dialog, int id) {
210	dialog.cancel();
211	}
212	})
213	.show();
214	} else {
215	startLoadDatabase();
216	}
217	}
218
219
220	public void startLoadDatabase()
221	{
222	dialog = new ProgressDialog(this);
223	((ProgressDialog)dialog).setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
224	((ProgressDialog)dialog).setMessage("Loading...");
225	dialog.setCancelable(false);
226	dialog.show();
227
228	Thread t = new Thread(reloadDB);
229	t.start();
230	}
231
232	private Handler progressHandler = new Handler() {
233	public void handleMessage(Message msg) {
234	ProgressDialog dlg = (ProgressDialog) dialog;
235	if (msg.what == 0)
236	dlg.setMax( msg.arg1 );
237	else
238	dlg.setProgress(msg.arg1);
239	}
240	};
241
242	private Handler dbUpdateHandler = new Handler() {
243
244	@Override
245	public void handleMessage(Message msg) {
246	dialog.dismiss();
247	if (msg.what == DOWNLOAD_SUCCESS) {
248	Date d = new Date();
249
250	SharedPreferences settings = getSharedPreferences(PREFS, 0);
251
252	SharedPreferences.Editor ed = settings.edit();
253	ed.putString(PREF_LAST_DB_UPDATE, d.toLocaleString());
254	ed.commit();
255	} else {
256	showMessage("Download failed");
257
258	}
259	}
260	};
261
262	Runnable reloadDB = new Runnable() {
263	public void run() {
264	PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
265	PowerManager.WakeLock wl = pm.newWakeLock(PowerManager.SCREEN_DIM_WAKE_LOCK, "My Tag");
266	try
267	{
268
269	wl.acquire();
270
271
272	peopleDB.loadData(progressHandler);
273	dbUpdateHandler.sendEmptyMessage(DOWNLOAD_SUCCESS);
274	} catch (Exception e) {
275	Log.e("PeopleList", "reloadDB", e);
276	dbUpdateHandler.sendEmptyMessage(DOWNLOAD_FAILED);
277	} finally {
278	wl.release();
279	}
280	}
281	};
282	}