thoerup/traininfo/WelcomeScreen.java

package dk.thoerup.traininfo;


import java.io.InvalidClassException;

import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Handler;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.Window;
import android.widget.Button;
import android.widget.Toast;

import com.nullwire.trace.ExceptionHandler;

import dk.thoerup.androidutils.CheckUpdates;
import dk.thoerup.traininfo.provider.OfflineStationProvider;
import dk.thoerup.traininfo.provider.ProviderFactory;
import dk.thoerup.traininfo.provider.StationProvider;


public class WelcomeScreen extends Activity{
        
        final static String stationsreload = "stationsreload";
        final static int MENU_SETTINGS = 1;
        final static int MENU_RELOAD = 2;
        
        
        public enum ListType {
                ListNearest,
                ListSearch,
                ListFavorites
        }
        
        Handler handler = new Handler();
        
        SharedPreferences prefs;
        
        StationLoader stationLoader;
        
        @Override
        public void onCreate(Bundle savedInstanceState) {
                
                super.onCreate(savedInstanceState);
                
                prefs = getSharedPreferences("TrainStation", 0);
                
                requestWindowFeature( Window.FEATURE_NO_TITLE );
                setContentView(R.layout.welcome);
                
                Button nearestButton = (Button) findViewById(R.id.nearest);
                nearestButton.setOnClickListener( new StationListListener(ListType.ListNearest));
                
                Button searchButton = (Button) findViewById(R.id.search);
                searchButton.setOnClickListener( new StationListListener(ListType.ListSearch));
                
                Button favoritesButton = (Button) findViewById(R.id.favorites);
                favoritesButton.setOnClickListener( new StationListListener(ListType.ListFavorites));
                
                Button aboutButton = (Button) findViewById(R.id.about);
                aboutButton.setOnClickListener( new AboutListener() );
        
                //Got stacktraces / reports that the register thing sometimes crashes
                try {   
                        ExceptionHandler.register(this, "http://t-hoerup.dk/android/trace.php");
                } catch (Exception e) {
                        Log.e("TrainInfo", "Error registering exception handler", e);
                }
                
                CheckUpdates update = new CheckUpdates();
                update.checkForUpdates(this, "http://t-hoerup.dk/android/traininfo/version.txt", "TrainInfo DK", null);
                /*
                Runnable r = new Runnable() {
                        @Override
                        public void run() {
                                View splash = findViewById(R.id.splash);
                                splash.setVisibility(View.GONE);
                        }
                };              
                handler.postDelayed(r, 1500);
                */
                
                StationProvider sp = ProviderFactory.getStationProvider();
                
                if (sp instanceof OfflineStationProvider ) {
                        OfflineStationProvider osp = (OfflineStationProvider) sp;
                        long last = prefs.getLong(stationsreload, 0);
                        long now = System.currentTimeMillis();
                        Log.i("TrainInfo", "Last Load: " + last);

                        boolean didLoad = false;

                        try {
                                didLoad = osp.loadStations(this);
                        }                                                                                               
                        catch (InvalidClassException e) {
                                Log.i("TrainInfo", "invalid class - do a new download of stationlist");
                        }
                        catch (Exception e) {
                                Toast.makeText(this, "" + e.getMessage(), Toast.LENGTH_SHORT).show();
                                Log.e("TrainInfo", "load error", e);
                        }

                        if (didLoad == false) {                                 
                                stationLoader = new StationLoader(osp, false);
                                stationLoader.execute( (Void)null);
                        } else {
                                if ( (now-last) > (14*24*60*60*1000) ) { //if we had a stations list but it was too old, load a new one silent
                                        Log.i("TrainInfo", "Stationlist too old, do a silent download");
                                        stationLoader = new StationLoader(osp, true); 
                                        stationLoader.execute( (Void)null);
                                }
                        }

                }
        }


        @Override
        protected void onDestroy() {
                super.onDestroy();
                if (stationLoader != null) {
                        stationLoader.cancel(true);
                }
                
                ProviderFactory.purgeOldEntries(); //exiting application, do some cleanup
        }


        @Override
        public boolean onCreateOptionsMenu(Menu menu) {
                MenuItem item;
                
                item = menu.add(0, MENU_SETTINGS, 0, getString(R.string.welcome_settings) );
                item.setIcon(android.R.drawable.ic_menu_preferences);
                
                item = menu.add(0, MENU_RELOAD, 0, getString(R.string.welcome_reloadstations));
                item.setIcon(android.R.drawable.ic_menu_rotate);
                
                return true;
        }
        
        @Override
        public boolean onOptionsItemSelected(MenuItem item) {
                boolean retval = true;
                
                switch (item.getItemId()) {
                case MENU_SETTINGS:
                        Intent intent = new Intent(WelcomeScreen.this, SettingsScreen.class);
                        WelcomeScreen.this.startActivity(intent);
                        break;
                        
                case MENU_RELOAD:
                        OfflineStationProvider osp = (OfflineStationProvider) ProviderFactory.getStationProvider();
                        new StationLoader(osp, false).execute( (Void)null);                     
                        break;
                        
                default:
                        retval = super.onOptionsItemSelected(item);
                }
                
                return retval;
        }
        

        class AboutListener implements OnClickListener {

                @Override
                public void onClick(View v) {
                        /*
                        String appName = WelcomeScreen.this.getResources().getString(R.string.app_name);
                        String ver = WelcomeScreen.this.getResources().getString(R.string.app_version);                 
                        
                        StringBuffer message = new StringBuffer();
                        message.append(appName);
                        message.append(" v").append(ver).append("\n");
                        message.append("By Torben H. Nielsen\n"); 

                        MessageBox.showMessage(WelcomeScreen.this, message.toString());*/
                        /*Intent browserIntent = new Intent(Intent.ACTION_VIEW, Uri.parse("http://t-hoerup.dk/android/traininfo/")); 
                        startActivity(browserIntent);*/
                        
                        Intent intent = new Intent(WelcomeScreen.this, AboutScreen.class);
                        WelcomeScreen.this.startActivity(intent);
                }

        }
        

        class StationListListener implements OnClickListener{
                ListType launchType;
                StationListListener(ListType type) {
                        launchType = type;
                }
                
                @Override
                public void onClick(View v) {
                        
                        StationProvider sp = ProviderFactory.getStationProvider();
                        
                        if (sp instanceof OfflineStationProvider ) {
                                OfflineStationProvider osp = (OfflineStationProvider) sp;
                                
                                if (! osp.hasStations()) {
                                        stationLoader = new StationLoader(osp, false);
                                        stationLoader.execute( (Void)null);     
                                        return;
                                }
                        }
                        
                        Intent intent = new Intent(WelcomeScreen.this, StationList.class);
                        intent.putExtra("type", launchType);
                        WelcomeScreen.this.startActivity(intent);
                }
                
        }
        
        class StationLoader extends AsyncTask<Void,Void,Void> {


                boolean succeeded;
                ProgressDialog dlg;
                OfflineStationProvider osp;
                String exMsg;
                boolean silent;
                
                public StationLoader(OfflineStationProvider osp, boolean silent) {
                        this.osp = osp;
                        this.silent = silent;
                }
                
                @Override
                protected Void doInBackground(Void... params) {
                        try {
                                osp.downloadStations( WelcomeScreen.this );
                                succeeded = true;
                        } catch (Exception e) {
                                succeeded = false;
                                exMsg = e.getMessage();
                                Log.e("TrainInfo", "download error", e);                                
                        }
                        return null;
                }

                
                @Override
                protected void onPreExecute() {
                        super.onPreExecute();
                        Log.i("TrainInfo", "StationLoader.onPreExecute() ");
                        
                        if (silent == false) {
                                dlg = new ProgressDialog(WelcomeScreen.this);
                                dlg.setMessage( getText(R.string.welcome_downloadingstations) );
                                dlg.setCancelable(false);
                                dlg.show();
                        } 
                }

                @Override
                protected void onPostExecute(Void result) {
                        super.onPostExecute(result);
                        Log.i("TrainInfo", "StationLoader.onPostExecute() ");
                        
                        if (silent == false) {
                                try {
                                        dlg.dismiss();
                                } catch (Exception e) {
                                        Log.e("TrainInfo", "Exception while closing dialog", e); // don't crash program
                                }
                                dlg = null;
                        }
                        
                        if (succeeded) {
                                Editor edit = prefs.edit();
                                edit.putLong(stationsreload, System.currentTimeMillis() );
                                edit.commit();
                        } else {
                                if (silent == false) {
                                        Toast.makeText(WelcomeScreen.this, "Error " + exMsg, Toast.LENGTH_LONG).show();
                                }
                        }
                }       
        }
        
}
1	package dk.thoerup.traininfo;
2
3
4
5	import java.io.InvalidClassException;
6
7	import android.app.Activity;
8	import android.app.ProgressDialog;
9	import android.content.Intent;
10	import android.content.SharedPreferences;
11	import android.content.SharedPreferences.Editor;
12	import android.net.Uri;
13	import android.os.AsyncTask;
14	import android.os.Bundle;
15	import android.os.Handler;
16	import android.util.Log;
17	import android.view.Menu;
18	import android.view.MenuItem;
19	import android.view.View;
20	import android.view.View.OnClickListener;
21	import android.view.Window;
22	import android.widget.Button;
23	import android.widget.Toast;
24
25	import com.nullwire.trace.ExceptionHandler;
26
27	import dk.thoerup.androidutils.CheckUpdates;
28	import dk.thoerup.traininfo.provider.OfflineStationProvider;
29	import dk.thoerup.traininfo.provider.ProviderFactory;
30	import dk.thoerup.traininfo.provider.StationProvider;
31
32
33	public class WelcomeScreen extends Activity{
34
35	final static String stationsreload = "stationsreload";
36	final static int MENU_SETTINGS = 1;
37	final static int MENU_RELOAD = 2;
38
39
40	public enum ListType {
41	ListNearest,
42	ListSearch,
43	ListFavorites
44	}
45
46	Handler handler = new Handler();
47
48	SharedPreferences prefs;
49
50	StationLoader stationLoader;
51
52	@Override
53	public void onCreate(Bundle savedInstanceState) {
54
55	super.onCreate(savedInstanceState);
56
57	prefs = getSharedPreferences("TrainStation", 0);
58
59	requestWindowFeature( Window.FEATURE_NO_TITLE );
60	setContentView(R.layout.welcome);
61
62	Button nearestButton = (Button) findViewById(R.id.nearest);
63	nearestButton.setOnClickListener( new StationListListener(ListType.ListNearest));
64
65	Button searchButton = (Button) findViewById(R.id.search);
66	searchButton.setOnClickListener( new StationListListener(ListType.ListSearch));
67
68	Button favoritesButton = (Button) findViewById(R.id.favorites);
69	favoritesButton.setOnClickListener( new StationListListener(ListType.ListFavorites));
70
71	Button aboutButton = (Button) findViewById(R.id.about);
72	aboutButton.setOnClickListener( new AboutListener() );
73
74	//Got stacktraces / reports that the register thing sometimes crashes
75	try {
76	ExceptionHandler.register(this, "http://t-hoerup.dk/android/trace.php");
77	} catch (Exception e) {
78	Log.e("TrainInfo", "Error registering exception handler", e);
79	}
80
81	CheckUpdates update = new CheckUpdates();
82	update.checkForUpdates(this, "http://t-hoerup.dk/android/traininfo/version.txt", "TrainInfo DK", null);
83	/*
84	Runnable r = new Runnable() {
85	@Override
86	public void run() {
87	View splash = findViewById(R.id.splash);
88	splash.setVisibility(View.GONE);
89	}
90	};
91	handler.postDelayed(r, 1500);
92	*/
93
94	StationProvider sp = ProviderFactory.getStationProvider();
95
96	if (sp instanceof OfflineStationProvider ) {
97	OfflineStationProvider osp = (OfflineStationProvider) sp;
98	long last = prefs.getLong(stationsreload, 0);
99	long now = System.currentTimeMillis();
100	Log.i("TrainInfo", "Last Load: " + last);
101
102	boolean didLoad = false;
103
104	try {
105	didLoad = osp.loadStations(this);
106	}
107	catch (InvalidClassException e) {
108	Log.i("TrainInfo", "invalid class - do a new download of stationlist");
109	}
110	catch (Exception e) {
111	Toast.makeText(this, "" + e.getMessage(), Toast.LENGTH_SHORT).show();
112	Log.e("TrainInfo", "load error", e);
113	}
114
115	if (didLoad == false) {
116	stationLoader = new StationLoader(osp, false);
117	stationLoader.execute( (Void)null);
118	} else {
119	if ( (now-last) > (142460601000) ) { //if we had a stations list but it was too old, load a new one silent
120	Log.i("TrainInfo", "Stationlist too old, do a silent download");
121	stationLoader = new StationLoader(osp, true);
122	stationLoader.execute( (Void)null);
123	}
124	}
125
126	}
127	}
128
129
130
131	@Override
132	protected void onDestroy() {
133	super.onDestroy();
134	if (stationLoader != null) {
135	stationLoader.cancel(true);
136	}
137
138	ProviderFactory.purgeOldEntries(); //exiting application, do some cleanup
139	}
140
141
142	@Override
143	public boolean onCreateOptionsMenu(Menu menu) {
144	MenuItem item;
145
146	item = menu.add(0, MENU_SETTINGS, 0, getString(R.string.welcome_settings) );
147	item.setIcon(android.R.drawable.ic_menu_preferences);
148
149	item = menu.add(0, MENU_RELOAD, 0, getString(R.string.welcome_reloadstations));
150	item.setIcon(android.R.drawable.ic_menu_rotate);
151
152	return true;
153	}
154
155	@Override
156	public boolean onOptionsItemSelected(MenuItem item) {
157	boolean retval = true;
158
159	switch (item.getItemId()) {
160	case MENU_SETTINGS:
161	Intent intent = new Intent(WelcomeScreen.this, SettingsScreen.class);
162	WelcomeScreen.this.startActivity(intent);
163	break;
164
165	case MENU_RELOAD:
166	OfflineStationProvider osp = (OfflineStationProvider) ProviderFactory.getStationProvider();
167	new StationLoader(osp, false).execute( (Void)null);
168	break;
169
170	default:
171	retval = super.onOptionsItemSelected(item);
172	}
173
174	return retval;
175	}
176
177
178	class AboutListener implements OnClickListener {
179
180	@Override
181	public void onClick(View v) {
182	/*
183	String appName = WelcomeScreen.this.getResources().getString(R.string.app_name);
184	String ver = WelcomeScreen.this.getResources().getString(R.string.app_version);
185
186	StringBuffer message = new StringBuffer();
187	message.append(appName);
188	message.append(" v").append(ver).append("\n");
189	message.append("By Torben H. Nielsen\n");
190
191	MessageBox.showMessage(WelcomeScreen.this, message.toString());*/
192	/*Intent browserIntent = new Intent(Intent.ACTION_VIEW, Uri.parse("http://t-hoerup.dk/android/traininfo/"));
193	startActivity(browserIntent);*/
194
195	Intent intent = new Intent(WelcomeScreen.this, AboutScreen.class);
196	WelcomeScreen.this.startActivity(intent);
197	}
198
199	}
200
201
202	class StationListListener implements OnClickListener{
203	ListType launchType;
204	StationListListener(ListType type) {
205	launchType = type;
206	}
207
208	@Override
209	public void onClick(View v) {
210
211	StationProvider sp = ProviderFactory.getStationProvider();
212
213	if (sp instanceof OfflineStationProvider ) {
214	OfflineStationProvider osp = (OfflineStationProvider) sp;
215
216	if (! osp.hasStations()) {
217	stationLoader = new StationLoader(osp, false);
218	stationLoader.execute( (Void)null);
219	return;
220	}
221	}
222
223	Intent intent = new Intent(WelcomeScreen.this, StationList.class);
224	intent.putExtra("type", launchType);
225	WelcomeScreen.this.startActivity(intent);
226	}
227
228	}
229
230	class StationLoader extends AsyncTask<Void,Void,Void> {
231
232
233	boolean succeeded;
234	ProgressDialog dlg;
235	OfflineStationProvider osp;
236	String exMsg;
237	boolean silent;
238
239	public StationLoader(OfflineStationProvider osp, boolean silent) {
240	this.osp = osp;
241	this.silent = silent;
242	}
243
244	@Override
245	protected Void doInBackground(Void... params) {
246	try {
247	osp.downloadStations( WelcomeScreen.this );
248	succeeded = true;
249	} catch (Exception e) {
250	succeeded = false;
251	exMsg = e.getMessage();
252	Log.e("TrainInfo", "download error", e);
253	}
254	return null;
255	}
256
257
258	@Override
259	protected void onPreExecute() {
260	super.onPreExecute();
261	Log.i("TrainInfo", "StationLoader.onPreExecute() ");
262
263	if (silent == false) {
264	dlg = new ProgressDialog(WelcomeScreen.this);
265	dlg.setMessage( getText(R.string.welcome_downloadingstations) );
266	dlg.setCancelable(false);
267	dlg.show();
268	}
269	}
270
271	@Override
272	protected void onPostExecute(Void result) {
273	super.onPostExecute(result);
274	Log.i("TrainInfo", "StationLoader.onPostExecute() ");
275
276	if (silent == false) {
277	try {
278	dlg.dismiss();
279	} catch (Exception e) {
280	Log.e("TrainInfo", "Exception while closing dialog", e); // don't crash program
281	}
282	dlg = null;
283	}
284
285	if (succeeded) {
286	Editor edit = prefs.edit();
287	edit.putLong(stationsreload, System.currentTimeMillis() );
288	edit.commit();
289	} else {
290	if (silent == false) {
291	Toast.makeText(WelcomeScreen.this, "Error " + exMsg, Toast.LENGTH_LONG).show();
292	}
293	}
294	}
295	}
296
297	}