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.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.SimpleCursorAdapter;

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 this template
                                null , // Give the cursor to the list adapter
                                new String[] { "name", "inits", "company" }, // Map the named db columns ...
                                new int[] {R.id.name, R.id.init, R.id.company}); // To these textviews

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