android/people/PeopleList.java

package com.grundfos.android.people;

import java.util.Date;

import android.app.AlertDialog;
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.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;

        ProgressDialog dialog;
        SimpleCursorAdapter adapter; 

        EditText searchWidget;
        
        @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 ) ;

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